5451 lines
209 KiB
C
5451 lines
209 KiB
C
/*
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* Copyright © 2016 Bas Nieuwenhuizen
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "ac_nir_to_llvm.h"
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#include "ac_gpu_info.h"
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#include "ac_binary.h"
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#include "ac_llvm_build.h"
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#include "ac_llvm_util.h"
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#include "ac_shader_abi.h"
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#include "ac_shader_util.h"
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#include "nir/nir.h"
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#include "nir/nir_deref.h"
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#include "sid.h"
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#include "util/bitscan.h"
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#include "util/u_math.h"
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#include <llvm/Config/llvm-config.h>
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struct ac_nir_context {
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struct ac_llvm_context ac;
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struct ac_shader_abi *abi;
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const struct ac_shader_args *args;
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gl_shader_stage stage;
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shader_info *info;
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LLVMValueRef *ssa_defs;
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LLVMValueRef scratch;
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LLVMValueRef constant_data;
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struct hash_table *defs;
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struct hash_table *phis;
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struct hash_table *vars;
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struct hash_table *verified_interp;
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LLVMValueRef main_function;
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LLVMBasicBlockRef continue_block;
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LLVMBasicBlockRef break_block;
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LLVMValueRef vertex_id_replaced;
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LLVMValueRef instance_id_replaced;
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LLVMValueRef tes_u_replaced;
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LLVMValueRef tes_v_replaced;
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LLVMValueRef tes_rel_patch_id_replaced;
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LLVMValueRef tes_patch_id_replaced;
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};
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static LLVMValueRef get_sampler_desc_index(struct ac_nir_context *ctx, nir_deref_instr *deref_instr,
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const nir_instr *instr, bool image);
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static LLVMValueRef get_sampler_desc(struct ac_nir_context *ctx, nir_deref_instr *deref_instr,
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enum ac_descriptor_type desc_type, const nir_instr *instr,
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LLVMValueRef index, bool image, bool write);
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static LLVMTypeRef get_def_type(struct ac_nir_context *ctx, const nir_ssa_def *def)
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{
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LLVMTypeRef type = LLVMIntTypeInContext(ctx->ac.context, def->bit_size);
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if (def->num_components > 1) {
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type = LLVMVectorType(type, def->num_components);
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}
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return type;
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}
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static LLVMValueRef get_src(struct ac_nir_context *nir, nir_src src)
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{
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assert(src.is_ssa);
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return nir->ssa_defs[src.ssa->index];
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}
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static LLVMValueRef get_memory_ptr_t(struct ac_nir_context *ctx, nir_src src, LLVMTypeRef elem_type, unsigned c_off)
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{
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LLVMValueRef ptr = get_src(ctx, src);
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LLVMValueRef lds_i8 = ctx->ac.lds;
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if (ctx->stage != MESA_SHADER_COMPUTE)
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lds_i8 = LLVMBuildBitCast(ctx->ac.builder, ctx->ac.lds, LLVMPointerType(ctx->ac.i8, AC_ADDR_SPACE_LDS), "");
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ptr = LLVMBuildAdd(ctx->ac.builder, ptr, LLVMConstInt(ctx->ac.i32, c_off, 0), "");
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ptr = LLVMBuildGEP2(ctx->ac.builder, ctx->ac.i8, lds_i8, &ptr, 1, "");
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int addr_space = LLVMGetPointerAddressSpace(LLVMTypeOf(ptr));
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return LLVMBuildBitCast(ctx->ac.builder, ptr, LLVMPointerType(elem_type, addr_space), "");
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}
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static LLVMValueRef get_memory_ptr(struct ac_nir_context *ctx, nir_src src, unsigned bit_size, unsigned c_off)
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{
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return get_memory_ptr_t(ctx, src, LLVMIntTypeInContext(ctx->ac.context, bit_size), c_off);
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}
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static LLVMBasicBlockRef get_block(struct ac_nir_context *nir, const struct nir_block *b)
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{
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struct hash_entry *entry = _mesa_hash_table_search(nir->defs, b);
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return (LLVMBasicBlockRef)entry->data;
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}
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static LLVMValueRef get_alu_src(struct ac_nir_context *ctx, nir_alu_src src,
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unsigned num_components)
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{
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LLVMValueRef value = get_src(ctx, src.src);
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bool need_swizzle = false;
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assert(value);
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unsigned src_components = ac_get_llvm_num_components(value);
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for (unsigned i = 0; i < num_components; ++i) {
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assert(src.swizzle[i] < src_components);
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if (src.swizzle[i] != i)
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need_swizzle = true;
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}
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if (need_swizzle || num_components != src_components) {
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LLVMValueRef masks[] = {LLVMConstInt(ctx->ac.i32, src.swizzle[0], false),
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LLVMConstInt(ctx->ac.i32, src.swizzle[1], false),
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LLVMConstInt(ctx->ac.i32, src.swizzle[2], false),
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LLVMConstInt(ctx->ac.i32, src.swizzle[3], false)};
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if (src_components > 1 && num_components == 1) {
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value = LLVMBuildExtractElement(ctx->ac.builder, value, masks[0], "");
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} else if (src_components == 1 && num_components > 1) {
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LLVMValueRef values[] = {value, value, value, value};
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value = ac_build_gather_values(&ctx->ac, values, num_components);
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} else {
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LLVMValueRef swizzle = LLVMConstVector(masks, num_components);
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value = LLVMBuildShuffleVector(ctx->ac.builder, value, value, swizzle, "");
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}
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}
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assert(!src.negate);
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assert(!src.abs);
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return value;
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}
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static LLVMValueRef emit_int_cmp(struct ac_llvm_context *ctx, LLVMIntPredicate pred,
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LLVMValueRef src0, LLVMValueRef src1)
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{
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src0 = ac_to_integer(ctx, src0);
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src1 = ac_to_integer(ctx, src1);
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return LLVMBuildICmp(ctx->builder, pred, src0, src1, "");
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}
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static LLVMValueRef emit_float_cmp(struct ac_llvm_context *ctx, LLVMRealPredicate pred,
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LLVMValueRef src0, LLVMValueRef src1)
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{
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src0 = ac_to_float(ctx, src0);
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src1 = ac_to_float(ctx, src1);
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return LLVMBuildFCmp(ctx->builder, pred, src0, src1, "");
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}
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static LLVMValueRef emit_intrin_1f_param(struct ac_llvm_context *ctx, const char *intrin,
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LLVMTypeRef result_type, LLVMValueRef src0)
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{
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char name[64], type[64];
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LLVMValueRef params[] = {
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ac_to_float(ctx, src0),
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};
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ac_build_type_name_for_intr(LLVMTypeOf(params[0]), type, sizeof(type));
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ASSERTED const int length = snprintf(name, sizeof(name), "%s.%s", intrin, type);
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assert(length < sizeof(name));
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return ac_build_intrinsic(ctx, name, result_type, params, 1, AC_FUNC_ATTR_READNONE);
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}
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static LLVMValueRef emit_intrin_1f_param_scalar(struct ac_llvm_context *ctx, const char *intrin,
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LLVMTypeRef result_type, LLVMValueRef src0)
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{
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if (LLVMGetTypeKind(result_type) != LLVMVectorTypeKind)
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return emit_intrin_1f_param(ctx, intrin, result_type, src0);
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LLVMTypeRef elem_type = LLVMGetElementType(result_type);
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LLVMValueRef ret = LLVMGetUndef(result_type);
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/* Scalarize the intrinsic, because vectors are not supported. */
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for (unsigned i = 0; i < LLVMGetVectorSize(result_type); i++) {
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char name[64], type[64];
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LLVMValueRef params[] = {
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ac_to_float(ctx, ac_llvm_extract_elem(ctx, src0, i)),
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};
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ac_build_type_name_for_intr(LLVMTypeOf(params[0]), type, sizeof(type));
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ASSERTED const int length = snprintf(name, sizeof(name), "%s.%s", intrin, type);
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assert(length < sizeof(name));
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ret = LLVMBuildInsertElement(
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ctx->builder, ret,
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ac_build_intrinsic(ctx, name, elem_type, params, 1, AC_FUNC_ATTR_READNONE),
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LLVMConstInt(ctx->i32, i, 0), "");
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}
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return ret;
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}
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static LLVMValueRef emit_intrin_2f_param(struct ac_llvm_context *ctx, const char *intrin,
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LLVMTypeRef result_type, LLVMValueRef src0,
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LLVMValueRef src1)
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{
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char name[64], type[64];
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LLVMValueRef params[] = {
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ac_to_float(ctx, src0),
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ac_to_float(ctx, src1),
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};
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ac_build_type_name_for_intr(LLVMTypeOf(params[0]), type, sizeof(type));
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ASSERTED const int length = snprintf(name, sizeof(name), "%s.%s", intrin, type);
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assert(length < sizeof(name));
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return ac_build_intrinsic(ctx, name, result_type, params, 2, AC_FUNC_ATTR_READNONE);
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}
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static LLVMValueRef emit_intrin_3f_param(struct ac_llvm_context *ctx, const char *intrin,
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LLVMTypeRef result_type, LLVMValueRef src0,
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LLVMValueRef src1, LLVMValueRef src2)
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{
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char name[64], type[64];
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LLVMValueRef params[] = {
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ac_to_float(ctx, src0),
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ac_to_float(ctx, src1),
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ac_to_float(ctx, src2),
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};
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ac_build_type_name_for_intr(LLVMTypeOf(params[0]), type, sizeof(type));
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ASSERTED const int length = snprintf(name, sizeof(name), "%s.%s", intrin, type);
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assert(length < sizeof(name));
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return ac_build_intrinsic(ctx, name, result_type, params, 3, AC_FUNC_ATTR_READNONE);
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}
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static LLVMValueRef emit_bcsel(struct ac_llvm_context *ctx, LLVMValueRef src0, LLVMValueRef src1,
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LLVMValueRef src2)
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{
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LLVMTypeRef src1_type = LLVMTypeOf(src1);
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LLVMTypeRef src2_type = LLVMTypeOf(src2);
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if (LLVMGetTypeKind(src1_type) == LLVMPointerTypeKind &&
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LLVMGetTypeKind(src2_type) != LLVMPointerTypeKind) {
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src2 = LLVMBuildIntToPtr(ctx->builder, src2, src1_type, "");
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} else if (LLVMGetTypeKind(src2_type) == LLVMPointerTypeKind &&
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LLVMGetTypeKind(src1_type) != LLVMPointerTypeKind) {
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src1 = LLVMBuildIntToPtr(ctx->builder, src1, src2_type, "");
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}
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return LLVMBuildSelect(ctx->builder, src0, ac_to_integer_or_pointer(ctx, src1),
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ac_to_integer_or_pointer(ctx, src2), "");
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}
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static LLVMValueRef emit_iabs(struct ac_llvm_context *ctx, LLVMValueRef src0)
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{
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return ac_build_imax(ctx, src0, LLVMBuildNeg(ctx->builder, src0, ""));
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}
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static LLVMValueRef emit_uint_carry(struct ac_llvm_context *ctx, const char *intrin,
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LLVMValueRef src0, LLVMValueRef src1)
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{
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LLVMTypeRef ret_type;
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LLVMTypeRef types[] = {ctx->i32, ctx->i1};
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LLVMValueRef res;
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LLVMValueRef params[] = {src0, src1};
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ret_type = LLVMStructTypeInContext(ctx->context, types, 2, true);
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res = ac_build_intrinsic(ctx, intrin, ret_type, params, 2, AC_FUNC_ATTR_READNONE);
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res = LLVMBuildExtractValue(ctx->builder, res, 1, "");
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res = LLVMBuildZExt(ctx->builder, res, ctx->i32, "");
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return res;
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}
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static LLVMValueRef emit_b2f(struct ac_llvm_context *ctx, LLVMValueRef src0, unsigned bitsize)
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{
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assert(ac_get_elem_bits(ctx, LLVMTypeOf(src0)) == 1);
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switch (bitsize) {
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case 16:
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if (LLVMGetTypeKind(LLVMTypeOf(src0)) == LLVMVectorTypeKind) {
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assert(LLVMGetVectorSize(LLVMTypeOf(src0)) == 2);
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LLVMValueRef f[] = {
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LLVMBuildSelect(ctx->builder, ac_llvm_extract_elem(ctx, src0, 0),
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ctx->f16_1, ctx->f16_0, ""),
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LLVMBuildSelect(ctx->builder, ac_llvm_extract_elem(ctx, src0, 1),
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ctx->f16_1, ctx->f16_0, ""),
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};
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return ac_build_gather_values(ctx, f, 2);
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}
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return LLVMBuildSelect(ctx->builder, src0, ctx->f16_1, ctx->f16_0, "");
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case 32:
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return LLVMBuildSelect(ctx->builder, src0, ctx->f32_1, ctx->f32_0, "");
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case 64:
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return LLVMBuildSelect(ctx->builder, src0, ctx->f64_1, ctx->f64_0, "");
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default:
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unreachable("Unsupported bit size.");
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}
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}
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static LLVMValueRef emit_f2b(struct ac_llvm_context *ctx, LLVMValueRef src0)
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{
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src0 = ac_to_float(ctx, src0);
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LLVMValueRef zero = LLVMConstNull(LLVMTypeOf(src0));
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return LLVMBuildFCmp(ctx->builder, LLVMRealUNE, src0, zero, "");
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}
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static LLVMValueRef emit_b2i(struct ac_llvm_context *ctx, LLVMValueRef src0, unsigned bitsize)
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{
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switch (bitsize) {
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case 8:
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return LLVMBuildSelect(ctx->builder, src0, ctx->i8_1, ctx->i8_0, "");
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case 16:
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return LLVMBuildSelect(ctx->builder, src0, ctx->i16_1, ctx->i16_0, "");
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case 32:
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return LLVMBuildSelect(ctx->builder, src0, ctx->i32_1, ctx->i32_0, "");
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case 64:
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return LLVMBuildSelect(ctx->builder, src0, ctx->i64_1, ctx->i64_0, "");
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default:
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unreachable("Unsupported bit size.");
|
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}
|
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}
|
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static LLVMValueRef emit_i2b(struct ac_llvm_context *ctx, LLVMValueRef src0)
|
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{
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LLVMValueRef zero = LLVMConstNull(LLVMTypeOf(src0));
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return LLVMBuildICmp(ctx->builder, LLVMIntNE, src0, zero, "");
|
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}
|
||
|
||
static LLVMValueRef emit_f2f16(struct ac_llvm_context *ctx, LLVMValueRef src0)
|
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{
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LLVMValueRef result;
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LLVMValueRef cond = NULL;
|
||
|
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src0 = ac_to_float(ctx, src0);
|
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result = LLVMBuildFPTrunc(ctx->builder, src0, ctx->f16, "");
|
||
|
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if (ctx->chip_class >= GFX8) {
|
||
LLVMValueRef args[2];
|
||
/* Check if the result is a denormal - and flush to 0 if so. */
|
||
args[0] = result;
|
||
args[1] = LLVMConstInt(ctx->i32, N_SUBNORMAL | P_SUBNORMAL, false);
|
||
cond =
|
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ac_build_intrinsic(ctx, "llvm.amdgcn.class.f16", ctx->i1, args, 2, AC_FUNC_ATTR_READNONE);
|
||
}
|
||
|
||
/* need to convert back up to f32 */
|
||
result = LLVMBuildFPExt(ctx->builder, result, ctx->f32, "");
|
||
|
||
if (ctx->chip_class >= GFX8)
|
||
result = LLVMBuildSelect(ctx->builder, cond, ctx->f32_0, result, "");
|
||
else {
|
||
/* for GFX6-GFX7 */
|
||
/* 0x38800000 is smallest half float value (2^-14) in 32-bit float,
|
||
* so compare the result and flush to 0 if it's smaller.
|
||
*/
|
||
LLVMValueRef temp, cond2;
|
||
temp = emit_intrin_1f_param(ctx, "llvm.fabs", ctx->f32, result);
|
||
cond = LLVMBuildFCmp(
|
||
ctx->builder, LLVMRealOGT,
|
||
LLVMBuildBitCast(ctx->builder, LLVMConstInt(ctx->i32, 0x38800000, false), ctx->f32, ""),
|
||
temp, "");
|
||
cond2 = LLVMBuildFCmp(ctx->builder, LLVMRealONE, temp, ctx->f32_0, "");
|
||
cond = LLVMBuildAnd(ctx->builder, cond, cond2, "");
|
||
result = LLVMBuildSelect(ctx->builder, cond, ctx->f32_0, result, "");
|
||
}
|
||
return result;
|
||
}
|
||
|
||
static LLVMValueRef emit_umul_high(struct ac_llvm_context *ctx, LLVMValueRef src0,
|
||
LLVMValueRef src1)
|
||
{
|
||
LLVMValueRef dst64, result;
|
||
src0 = LLVMBuildZExt(ctx->builder, src0, ctx->i64, "");
|
||
src1 = LLVMBuildZExt(ctx->builder, src1, ctx->i64, "");
|
||
|
||
dst64 = LLVMBuildMul(ctx->builder, src0, src1, "");
|
||
dst64 = LLVMBuildLShr(ctx->builder, dst64, LLVMConstInt(ctx->i64, 32, false), "");
|
||
result = LLVMBuildTrunc(ctx->builder, dst64, ctx->i32, "");
|
||
return result;
|
||
}
|
||
|
||
static LLVMValueRef emit_imul_high(struct ac_llvm_context *ctx, LLVMValueRef src0,
|
||
LLVMValueRef src1)
|
||
{
|
||
LLVMValueRef dst64, result;
|
||
src0 = LLVMBuildSExt(ctx->builder, src0, ctx->i64, "");
|
||
src1 = LLVMBuildSExt(ctx->builder, src1, ctx->i64, "");
|
||
|
||
dst64 = LLVMBuildMul(ctx->builder, src0, src1, "");
|
||
dst64 = LLVMBuildAShr(ctx->builder, dst64, LLVMConstInt(ctx->i64, 32, false), "");
|
||
result = LLVMBuildTrunc(ctx->builder, dst64, ctx->i32, "");
|
||
return result;
|
||
}
|
||
|
||
static LLVMValueRef emit_bfm(struct ac_llvm_context *ctx, LLVMValueRef bits, LLVMValueRef offset)
|
||
{
|
||
/* mask = ((1 << bits) - 1) << offset */
|
||
return LLVMBuildShl(
|
||
ctx->builder,
|
||
LLVMBuildSub(ctx->builder, LLVMBuildShl(ctx->builder, ctx->i32_1, bits, ""), ctx->i32_1, ""),
|
||
offset, "");
|
||
}
|
||
|
||
static LLVMValueRef emit_bitfield_select(struct ac_llvm_context *ctx, LLVMValueRef mask,
|
||
LLVMValueRef insert, LLVMValueRef base)
|
||
{
|
||
/* Calculate:
|
||
* (mask & insert) | (~mask & base) = base ^ (mask & (insert ^ base))
|
||
* Use the right-hand side, which the LLVM backend can convert to V_BFI.
|
||
*/
|
||
return LLVMBuildXor(
|
||
ctx->builder, base,
|
||
LLVMBuildAnd(ctx->builder, mask, LLVMBuildXor(ctx->builder, insert, base, ""), ""), "");
|
||
}
|
||
|
||
static LLVMValueRef emit_pack_2x16(struct ac_llvm_context *ctx, LLVMValueRef src0,
|
||
LLVMValueRef (*pack)(struct ac_llvm_context *ctx,
|
||
LLVMValueRef args[2]))
|
||
{
|
||
LLVMValueRef comp[2];
|
||
|
||
src0 = ac_to_float(ctx, src0);
|
||
comp[0] = LLVMBuildExtractElement(ctx->builder, src0, ctx->i32_0, "");
|
||
comp[1] = LLVMBuildExtractElement(ctx->builder, src0, ctx->i32_1, "");
|
||
|
||
return LLVMBuildBitCast(ctx->builder, pack(ctx, comp), ctx->i32, "");
|
||
}
|
||
|
||
static LLVMValueRef emit_unpack_half_2x16(struct ac_llvm_context *ctx, LLVMValueRef src0)
|
||
{
|
||
LLVMValueRef const16 = LLVMConstInt(ctx->i32, 16, false);
|
||
LLVMValueRef temps[2], val;
|
||
int i;
|
||
|
||
for (i = 0; i < 2; i++) {
|
||
val = i == 1 ? LLVMBuildLShr(ctx->builder, src0, const16, "") : src0;
|
||
val = LLVMBuildTrunc(ctx->builder, val, ctx->i16, "");
|
||
val = LLVMBuildBitCast(ctx->builder, val, ctx->f16, "");
|
||
temps[i] = LLVMBuildFPExt(ctx->builder, val, ctx->f32, "");
|
||
}
|
||
return ac_build_gather_values(ctx, temps, 2);
|
||
}
|
||
|
||
static LLVMValueRef emit_ddxy(struct ac_nir_context *ctx, nir_op op, LLVMValueRef src0)
|
||
{
|
||
unsigned mask;
|
||
int idx;
|
||
LLVMValueRef result;
|
||
|
||
if (op == nir_op_fddx_fine)
|
||
mask = AC_TID_MASK_LEFT;
|
||
else if (op == nir_op_fddy_fine)
|
||
mask = AC_TID_MASK_TOP;
|
||
else
|
||
mask = AC_TID_MASK_TOP_LEFT;
|
||
|
||
/* for DDX we want to next X pixel, DDY next Y pixel. */
|
||
if (op == nir_op_fddx_fine || op == nir_op_fddx_coarse || op == nir_op_fddx)
|
||
idx = 1;
|
||
else
|
||
idx = 2;
|
||
|
||
result = ac_build_ddxy(&ctx->ac, mask, idx, src0);
|
||
return result;
|
||
}
|
||
|
||
struct waterfall_context {
|
||
LLVMBasicBlockRef phi_bb[2];
|
||
bool use_waterfall;
|
||
};
|
||
|
||
/* To deal with divergent descriptors we can create a loop that handles all
|
||
* lanes with the same descriptor on a given iteration (henceforth a
|
||
* waterfall loop).
|
||
*
|
||
* These helper create the begin and end of the loop leaving the caller
|
||
* to implement the body.
|
||
*
|
||
* params:
|
||
* - ctx is the usal nir context
|
||
* - wctx is a temporary struct containing some loop info. Can be left uninitialized.
|
||
* - value is the possibly divergent value for which we built the loop
|
||
* - divergent is whether value is actually divergent. If false we just pass
|
||
* things through.
|
||
*/
|
||
static LLVMValueRef enter_waterfall(struct ac_nir_context *ctx, struct waterfall_context *wctx,
|
||
LLVMValueRef value, bool divergent)
|
||
{
|
||
/* If the app claims the value is divergent but it is constant we can
|
||
* end up with a dynamic index of NULL. */
|
||
if (!value)
|
||
divergent = false;
|
||
|
||
wctx->use_waterfall = divergent;
|
||
if (!divergent)
|
||
return value;
|
||
|
||
ac_build_bgnloop(&ctx->ac, 6000);
|
||
|
||
LLVMValueRef active = LLVMConstInt(ctx->ac.i1, 1, false);
|
||
LLVMValueRef scalar_value[NIR_MAX_VEC_COMPONENTS];
|
||
|
||
for (unsigned i = 0; i < ac_get_llvm_num_components(value); i++) {
|
||
LLVMValueRef comp = ac_llvm_extract_elem(&ctx->ac, value, i);
|
||
scalar_value[i] = ac_build_readlane(&ctx->ac, comp, NULL);
|
||
active = LLVMBuildAnd(ctx->ac.builder, active,
|
||
LLVMBuildICmp(ctx->ac.builder, LLVMIntEQ, comp, scalar_value[i], ""), "");
|
||
}
|
||
|
||
wctx->phi_bb[0] = LLVMGetInsertBlock(ctx->ac.builder);
|
||
ac_build_ifcc(&ctx->ac, active, 6001);
|
||
|
||
return ac_build_gather_values(&ctx->ac, scalar_value, ac_get_llvm_num_components(value));
|
||
}
|
||
|
||
static LLVMValueRef exit_waterfall(struct ac_nir_context *ctx, struct waterfall_context *wctx,
|
||
LLVMValueRef value)
|
||
{
|
||
LLVMValueRef ret = NULL;
|
||
LLVMValueRef phi_src[2];
|
||
LLVMValueRef cc_phi_src[2] = {
|
||
LLVMConstInt(ctx->ac.i32, 0, false),
|
||
LLVMConstInt(ctx->ac.i32, 0xffffffff, false),
|
||
};
|
||
|
||
if (!wctx->use_waterfall)
|
||
return value;
|
||
|
||
wctx->phi_bb[1] = LLVMGetInsertBlock(ctx->ac.builder);
|
||
|
||
ac_build_endif(&ctx->ac, 6001);
|
||
|
||
if (value) {
|
||
phi_src[0] = LLVMGetUndef(LLVMTypeOf(value));
|
||
phi_src[1] = value;
|
||
|
||
ret = ac_build_phi(&ctx->ac, LLVMTypeOf(value), 2, phi_src, wctx->phi_bb);
|
||
}
|
||
|
||
/*
|
||
* By using the optimization barrier on the exit decision, we decouple
|
||
* the operations from the break, and hence avoid LLVM hoisting the
|
||
* opteration into the break block.
|
||
*/
|
||
LLVMValueRef cc = ac_build_phi(&ctx->ac, ctx->ac.i32, 2, cc_phi_src, wctx->phi_bb);
|
||
ac_build_optimization_barrier(&ctx->ac, &cc, false);
|
||
|
||
LLVMValueRef active =
|
||
LLVMBuildICmp(ctx->ac.builder, LLVMIntNE, cc, ctx->ac.i32_0, "uniform_active2");
|
||
ac_build_ifcc(&ctx->ac, active, 6002);
|
||
ac_build_break(&ctx->ac);
|
||
ac_build_endif(&ctx->ac, 6002);
|
||
|
||
ac_build_endloop(&ctx->ac, 6000);
|
||
return ret;
|
||
}
|
||
|
||
static void visit_alu(struct ac_nir_context *ctx, const nir_alu_instr *instr)
|
||
{
|
||
LLVMValueRef src[16], result = NULL;
|
||
unsigned num_components = instr->dest.dest.ssa.num_components;
|
||
unsigned src_components;
|
||
LLVMTypeRef def_type = get_def_type(ctx, &instr->dest.dest.ssa);
|
||
|
||
assert(nir_op_infos[instr->op].num_inputs <= ARRAY_SIZE(src));
|
||
switch (instr->op) {
|
||
case nir_op_vec2:
|
||
case nir_op_vec3:
|
||
case nir_op_vec4:
|
||
case nir_op_vec5:
|
||
case nir_op_vec8:
|
||
case nir_op_vec16:
|
||
case nir_op_unpack_32_2x16:
|
||
case nir_op_unpack_64_2x32:
|
||
case nir_op_unpack_64_4x16:
|
||
src_components = 1;
|
||
break;
|
||
case nir_op_pack_half_2x16:
|
||
case nir_op_pack_snorm_2x16:
|
||
case nir_op_pack_unorm_2x16:
|
||
case nir_op_pack_uint_2x16:
|
||
case nir_op_pack_sint_2x16:
|
||
case nir_op_pack_32_2x16:
|
||
case nir_op_pack_64_2x32:
|
||
src_components = 2;
|
||
break;
|
||
case nir_op_unpack_half_2x16:
|
||
src_components = 1;
|
||
break;
|
||
case nir_op_cube_face_coord_amd:
|
||
case nir_op_cube_face_index_amd:
|
||
src_components = 3;
|
||
break;
|
||
case nir_op_pack_32_4x8:
|
||
case nir_op_pack_64_4x16:
|
||
src_components = 4;
|
||
break;
|
||
default:
|
||
src_components = num_components;
|
||
break;
|
||
}
|
||
for (unsigned i = 0; i < nir_op_infos[instr->op].num_inputs; i++)
|
||
src[i] = get_alu_src(ctx, instr->src[i], src_components);
|
||
|
||
switch (instr->op) {
|
||
case nir_op_mov:
|
||
result = src[0];
|
||
break;
|
||
case nir_op_fneg:
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
result = LLVMBuildFNeg(ctx->ac.builder, src[0], "");
|
||
if (ctx->ac.float_mode == AC_FLOAT_MODE_DENORM_FLUSH_TO_ZERO) {
|
||
/* fneg will be optimized by backend compiler with sign
|
||
* bit removed via XOR. This is probably a LLVM bug.
|
||
*/
|
||
result = ac_build_canonicalize(&ctx->ac, result, instr->dest.dest.ssa.bit_size);
|
||
}
|
||
break;
|
||
case nir_op_ineg:
|
||
if (instr->no_unsigned_wrap)
|
||
result = LLVMBuildNUWNeg(ctx->ac.builder, src[0], "");
|
||
else if (instr->no_signed_wrap)
|
||
result = LLVMBuildNSWNeg(ctx->ac.builder, src[0], "");
|
||
else
|
||
result = LLVMBuildNeg(ctx->ac.builder, src[0], "");
|
||
break;
|
||
case nir_op_inot:
|
||
result = LLVMBuildNot(ctx->ac.builder, src[0], "");
|
||
break;
|
||
case nir_op_iadd:
|
||
if (instr->no_unsigned_wrap)
|
||
result = LLVMBuildNUWAdd(ctx->ac.builder, src[0], src[1], "");
|
||
else if (instr->no_signed_wrap)
|
||
result = LLVMBuildNSWAdd(ctx->ac.builder, src[0], src[1], "");
|
||
else
|
||
result = LLVMBuildAdd(ctx->ac.builder, src[0], src[1], "");
|
||
break;
|
||
case nir_op_uadd_sat:
|
||
case nir_op_iadd_sat: {
|
||
char name[64], type[64];
|
||
ac_build_type_name_for_intr(def_type, type, sizeof(type));
|
||
snprintf(name, sizeof(name), "llvm.%cadd.sat.%s",
|
||
instr->op == nir_op_uadd_sat ? 'u' : 's', type);
|
||
result = ac_build_intrinsic(&ctx->ac, name, def_type, src, 2, AC_FUNC_ATTR_READNONE);
|
||
break;
|
||
}
|
||
case nir_op_fadd:
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
src[1] = ac_to_float(&ctx->ac, src[1]);
|
||
result = LLVMBuildFAdd(ctx->ac.builder, src[0], src[1], "");
|
||
break;
|
||
case nir_op_fsub:
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
src[1] = ac_to_float(&ctx->ac, src[1]);
|
||
result = LLVMBuildFSub(ctx->ac.builder, src[0], src[1], "");
|
||
break;
|
||
case nir_op_isub:
|
||
if (instr->no_unsigned_wrap)
|
||
result = LLVMBuildNUWSub(ctx->ac.builder, src[0], src[1], "");
|
||
else if (instr->no_signed_wrap)
|
||
result = LLVMBuildNSWSub(ctx->ac.builder, src[0], src[1], "");
|
||
else
|
||
result = LLVMBuildSub(ctx->ac.builder, src[0], src[1], "");
|
||
break;
|
||
case nir_op_imul:
|
||
if (instr->no_unsigned_wrap)
|
||
result = LLVMBuildNUWMul(ctx->ac.builder, src[0], src[1], "");
|
||
else if (instr->no_signed_wrap)
|
||
result = LLVMBuildNSWMul(ctx->ac.builder, src[0], src[1], "");
|
||
else
|
||
result = LLVMBuildMul(ctx->ac.builder, src[0], src[1], "");
|
||
break;
|
||
case nir_op_imod:
|
||
result = LLVMBuildSRem(ctx->ac.builder, src[0], src[1], "");
|
||
break;
|
||
case nir_op_umod:
|
||
result = LLVMBuildURem(ctx->ac.builder, src[0], src[1], "");
|
||
break;
|
||
case nir_op_irem:
|
||
result = LLVMBuildSRem(ctx->ac.builder, src[0], src[1], "");
|
||
break;
|
||
case nir_op_idiv:
|
||
result = LLVMBuildSDiv(ctx->ac.builder, src[0], src[1], "");
|
||
break;
|
||
case nir_op_udiv:
|
||
result = LLVMBuildUDiv(ctx->ac.builder, src[0], src[1], "");
|
||
break;
|
||
case nir_op_fmul:
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
src[1] = ac_to_float(&ctx->ac, src[1]);
|
||
result = LLVMBuildFMul(ctx->ac.builder, src[0], src[1], "");
|
||
break;
|
||
case nir_op_fmulz:
|
||
assert(LLVM_VERSION_MAJOR >= 12);
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
src[1] = ac_to_float(&ctx->ac, src[1]);
|
||
result = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.fmul.legacy", ctx->ac.f32,
|
||
src, 2, AC_FUNC_ATTR_READNONE);
|
||
break;
|
||
case nir_op_frcp:
|
||
/* For doubles, we need precise division to pass GLCTS. */
|
||
if (ctx->ac.float_mode == AC_FLOAT_MODE_DEFAULT_OPENGL && ac_get_type_size(def_type) == 8) {
|
||
result = LLVMBuildFDiv(ctx->ac.builder, ctx->ac.f64_1, ac_to_float(&ctx->ac, src[0]), "");
|
||
} else {
|
||
result = emit_intrin_1f_param_scalar(&ctx->ac, "llvm.amdgcn.rcp",
|
||
ac_to_float_type(&ctx->ac, def_type), src[0]);
|
||
}
|
||
if (ctx->abi->clamp_div_by_zero)
|
||
result = ac_build_fmin(&ctx->ac, result,
|
||
LLVMConstReal(ac_to_float_type(&ctx->ac, def_type), FLT_MAX));
|
||
break;
|
||
case nir_op_iand:
|
||
result = LLVMBuildAnd(ctx->ac.builder, src[0], src[1], "");
|
||
break;
|
||
case nir_op_ior:
|
||
result = LLVMBuildOr(ctx->ac.builder, src[0], src[1], "");
|
||
break;
|
||
case nir_op_ixor:
|
||
result = LLVMBuildXor(ctx->ac.builder, src[0], src[1], "");
|
||
break;
|
||
case nir_op_ishl:
|
||
if (ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[1])) <
|
||
ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[0])))
|
||
src[1] = LLVMBuildZExt(ctx->ac.builder, src[1], LLVMTypeOf(src[0]), "");
|
||
else if (ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[1])) >
|
||
ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[0])))
|
||
src[1] = LLVMBuildTrunc(ctx->ac.builder, src[1], LLVMTypeOf(src[0]), "");
|
||
result = LLVMBuildShl(ctx->ac.builder, src[0], src[1], "");
|
||
break;
|
||
case nir_op_ishr:
|
||
if (ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[1])) <
|
||
ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[0])))
|
||
src[1] = LLVMBuildZExt(ctx->ac.builder, src[1], LLVMTypeOf(src[0]), "");
|
||
else if (ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[1])) >
|
||
ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[0])))
|
||
src[1] = LLVMBuildTrunc(ctx->ac.builder, src[1], LLVMTypeOf(src[0]), "");
|
||
result = LLVMBuildAShr(ctx->ac.builder, src[0], src[1], "");
|
||
break;
|
||
case nir_op_ushr:
|
||
if (ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[1])) <
|
||
ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[0])))
|
||
src[1] = LLVMBuildZExt(ctx->ac.builder, src[1], LLVMTypeOf(src[0]), "");
|
||
else if (ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[1])) >
|
||
ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[0])))
|
||
src[1] = LLVMBuildTrunc(ctx->ac.builder, src[1], LLVMTypeOf(src[0]), "");
|
||
result = LLVMBuildLShr(ctx->ac.builder, src[0], src[1], "");
|
||
break;
|
||
case nir_op_ilt:
|
||
result = emit_int_cmp(&ctx->ac, LLVMIntSLT, src[0], src[1]);
|
||
break;
|
||
case nir_op_ine:
|
||
result = emit_int_cmp(&ctx->ac, LLVMIntNE, src[0], src[1]);
|
||
break;
|
||
case nir_op_ieq:
|
||
result = emit_int_cmp(&ctx->ac, LLVMIntEQ, src[0], src[1]);
|
||
break;
|
||
case nir_op_ige:
|
||
result = emit_int_cmp(&ctx->ac, LLVMIntSGE, src[0], src[1]);
|
||
break;
|
||
case nir_op_ult:
|
||
result = emit_int_cmp(&ctx->ac, LLVMIntULT, src[0], src[1]);
|
||
break;
|
||
case nir_op_uge:
|
||
result = emit_int_cmp(&ctx->ac, LLVMIntUGE, src[0], src[1]);
|
||
break;
|
||
case nir_op_feq:
|
||
result = emit_float_cmp(&ctx->ac, LLVMRealOEQ, src[0], src[1]);
|
||
break;
|
||
case nir_op_fneu:
|
||
result = emit_float_cmp(&ctx->ac, LLVMRealUNE, src[0], src[1]);
|
||
break;
|
||
case nir_op_flt:
|
||
result = emit_float_cmp(&ctx->ac, LLVMRealOLT, src[0], src[1]);
|
||
break;
|
||
case nir_op_fge:
|
||
result = emit_float_cmp(&ctx->ac, LLVMRealOGE, src[0], src[1]);
|
||
break;
|
||
case nir_op_fabs:
|
||
result =
|
||
emit_intrin_1f_param(&ctx->ac, "llvm.fabs", ac_to_float_type(&ctx->ac, def_type), src[0]);
|
||
if (ctx->ac.float_mode == AC_FLOAT_MODE_DENORM_FLUSH_TO_ZERO) {
|
||
/* fabs will be optimized by backend compiler with sign
|
||
* bit removed via AND.
|
||
*/
|
||
result = ac_build_canonicalize(&ctx->ac, result, instr->dest.dest.ssa.bit_size);
|
||
}
|
||
break;
|
||
case nir_op_fsat:
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
result = ac_build_fsat(&ctx->ac, src[0],
|
||
ac_to_float_type(&ctx->ac, def_type));
|
||
break;
|
||
case nir_op_iabs:
|
||
result = emit_iabs(&ctx->ac, src[0]);
|
||
break;
|
||
case nir_op_imax:
|
||
result = ac_build_imax(&ctx->ac, src[0], src[1]);
|
||
break;
|
||
case nir_op_imin:
|
||
result = ac_build_imin(&ctx->ac, src[0], src[1]);
|
||
break;
|
||
case nir_op_umax:
|
||
result = ac_build_umax(&ctx->ac, src[0], src[1]);
|
||
break;
|
||
case nir_op_umin:
|
||
result = ac_build_umin(&ctx->ac, src[0], src[1]);
|
||
break;
|
||
case nir_op_isign:
|
||
result = ac_build_isign(&ctx->ac, src[0]);
|
||
break;
|
||
case nir_op_fsign:
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
result = ac_build_fsign(&ctx->ac, src[0]);
|
||
break;
|
||
case nir_op_ffloor:
|
||
result =
|
||
emit_intrin_1f_param(&ctx->ac, "llvm.floor", ac_to_float_type(&ctx->ac, def_type), src[0]);
|
||
break;
|
||
case nir_op_ftrunc:
|
||
result =
|
||
emit_intrin_1f_param(&ctx->ac, "llvm.trunc", ac_to_float_type(&ctx->ac, def_type), src[0]);
|
||
break;
|
||
case nir_op_fceil:
|
||
result =
|
||
emit_intrin_1f_param(&ctx->ac, "llvm.ceil", ac_to_float_type(&ctx->ac, def_type), src[0]);
|
||
break;
|
||
case nir_op_fround_even:
|
||
result =
|
||
emit_intrin_1f_param(&ctx->ac, "llvm.rint", ac_to_float_type(&ctx->ac, def_type), src[0]);
|
||
break;
|
||
case nir_op_ffract:
|
||
result = emit_intrin_1f_param_scalar(&ctx->ac, "llvm.amdgcn.fract",
|
||
ac_to_float_type(&ctx->ac, def_type), src[0]);
|
||
break;
|
||
case nir_op_fsin:
|
||
result =
|
||
emit_intrin_1f_param(&ctx->ac, "llvm.sin", ac_to_float_type(&ctx->ac, def_type), src[0]);
|
||
break;
|
||
case nir_op_fcos:
|
||
result =
|
||
emit_intrin_1f_param(&ctx->ac, "llvm.cos", ac_to_float_type(&ctx->ac, def_type), src[0]);
|
||
break;
|
||
case nir_op_fsqrt:
|
||
result =
|
||
emit_intrin_1f_param(&ctx->ac, "llvm.sqrt", ac_to_float_type(&ctx->ac, def_type), src[0]);
|
||
break;
|
||
case nir_op_fexp2:
|
||
result =
|
||
emit_intrin_1f_param(&ctx->ac, "llvm.exp2", ac_to_float_type(&ctx->ac, def_type), src[0]);
|
||
break;
|
||
case nir_op_flog2:
|
||
result =
|
||
emit_intrin_1f_param(&ctx->ac, "llvm.log2", ac_to_float_type(&ctx->ac, def_type), src[0]);
|
||
break;
|
||
case nir_op_frsq:
|
||
result = emit_intrin_1f_param_scalar(&ctx->ac, "llvm.amdgcn.rsq",
|
||
ac_to_float_type(&ctx->ac, def_type), src[0]);
|
||
if (ctx->abi->clamp_div_by_zero)
|
||
result = ac_build_fmin(&ctx->ac, result,
|
||
LLVMConstReal(ac_to_float_type(&ctx->ac, def_type), FLT_MAX));
|
||
break;
|
||
case nir_op_frexp_exp:
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
result = ac_build_frexp_exp(&ctx->ac, src[0], ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[0])));
|
||
if (ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[0])) == 16)
|
||
result = LLVMBuildSExt(ctx->ac.builder, result, ctx->ac.i32, "");
|
||
break;
|
||
case nir_op_frexp_sig:
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
result = ac_build_frexp_mant(&ctx->ac, src[0], instr->dest.dest.ssa.bit_size);
|
||
break;
|
||
case nir_op_fpow:
|
||
if (instr->dest.dest.ssa.bit_size != 32) {
|
||
/* 16 and 64 bits */
|
||
result = emit_intrin_1f_param(&ctx->ac, "llvm.log2",
|
||
ac_to_float_type(&ctx->ac, def_type), src[0]);
|
||
result = LLVMBuildFMul(ctx->ac.builder, result, ac_to_float(&ctx->ac, src[1]), "");
|
||
result = emit_intrin_1f_param(&ctx->ac, "llvm.exp2",
|
||
ac_to_float_type(&ctx->ac, def_type), result);
|
||
break;
|
||
}
|
||
if (LLVM_VERSION_MAJOR >= 12) {
|
||
result = emit_intrin_1f_param(&ctx->ac, "llvm.log2",
|
||
ac_to_float_type(&ctx->ac, def_type), src[0]);
|
||
result = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.fmul.legacy", ctx->ac.f32,
|
||
(LLVMValueRef[]){result, ac_to_float(&ctx->ac, src[1])},
|
||
2, AC_FUNC_ATTR_READNONE);
|
||
result = emit_intrin_1f_param(&ctx->ac, "llvm.exp2",
|
||
ac_to_float_type(&ctx->ac, def_type), result);
|
||
break;
|
||
}
|
||
/* Older LLVM doesn't have fmul.legacy. */
|
||
result = emit_intrin_2f_param(&ctx->ac, "llvm.pow", ac_to_float_type(&ctx->ac, def_type),
|
||
src[0], src[1]);
|
||
break;
|
||
case nir_op_fmax:
|
||
result = emit_intrin_2f_param(&ctx->ac, "llvm.maxnum", ac_to_float_type(&ctx->ac, def_type),
|
||
src[0], src[1]);
|
||
if (ctx->ac.chip_class < GFX9 && instr->dest.dest.ssa.bit_size == 32) {
|
||
/* Only pre-GFX9 chips do not flush denorms. */
|
||
result = ac_build_canonicalize(&ctx->ac, result, instr->dest.dest.ssa.bit_size);
|
||
}
|
||
break;
|
||
case nir_op_fmin:
|
||
result = emit_intrin_2f_param(&ctx->ac, "llvm.minnum", ac_to_float_type(&ctx->ac, def_type),
|
||
src[0], src[1]);
|
||
if (ctx->ac.chip_class < GFX9 && instr->dest.dest.ssa.bit_size == 32) {
|
||
/* Only pre-GFX9 chips do not flush denorms. */
|
||
result = ac_build_canonicalize(&ctx->ac, result, instr->dest.dest.ssa.bit_size);
|
||
}
|
||
break;
|
||
case nir_op_ffma:
|
||
/* FMA is slow on gfx6-8, so it shouldn't be used. */
|
||
assert(instr->dest.dest.ssa.bit_size != 32 || ctx->ac.chip_class >= GFX9);
|
||
result = emit_intrin_3f_param(&ctx->ac, "llvm.fma", ac_to_float_type(&ctx->ac, def_type),
|
||
src[0], src[1], src[2]);
|
||
break;
|
||
case nir_op_ffmaz:
|
||
assert(LLVM_VERSION_MAJOR >= 12 && ctx->ac.chip_class >= GFX10_3);
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
src[1] = ac_to_float(&ctx->ac, src[1]);
|
||
src[2] = ac_to_float(&ctx->ac, src[2]);
|
||
result = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.fma.legacy", ctx->ac.f32,
|
||
src, 3, AC_FUNC_ATTR_READNONE);
|
||
break;
|
||
case nir_op_ldexp:
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
if (ac_get_elem_bits(&ctx->ac, def_type) == 32)
|
||
result = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.ldexp.f32", ctx->ac.f32, src, 2,
|
||
AC_FUNC_ATTR_READNONE);
|
||
else if (ac_get_elem_bits(&ctx->ac, def_type) == 16)
|
||
result = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.ldexp.f16", ctx->ac.f16, src, 2,
|
||
AC_FUNC_ATTR_READNONE);
|
||
else
|
||
result = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.ldexp.f64", ctx->ac.f64, src, 2,
|
||
AC_FUNC_ATTR_READNONE);
|
||
break;
|
||
case nir_op_bfm:
|
||
result = emit_bfm(&ctx->ac, src[0], src[1]);
|
||
break;
|
||
case nir_op_bitfield_select:
|
||
result = emit_bitfield_select(&ctx->ac, src[0], src[1], src[2]);
|
||
break;
|
||
case nir_op_ubfe:
|
||
result = ac_build_bfe(&ctx->ac, src[0], src[1], src[2], false);
|
||
break;
|
||
case nir_op_ibfe:
|
||
result = ac_build_bfe(&ctx->ac, src[0], src[1], src[2], true);
|
||
break;
|
||
case nir_op_bitfield_reverse:
|
||
result = ac_build_bitfield_reverse(&ctx->ac, src[0]);
|
||
break;
|
||
case nir_op_bit_count:
|
||
result = ac_build_bit_count(&ctx->ac, src[0]);
|
||
break;
|
||
case nir_op_vec2:
|
||
case nir_op_vec3:
|
||
case nir_op_vec4:
|
||
case nir_op_vec5:
|
||
case nir_op_vec8:
|
||
case nir_op_vec16:
|
||
for (unsigned i = 0; i < nir_op_infos[instr->op].num_inputs; i++)
|
||
src[i] = ac_to_integer(&ctx->ac, src[i]);
|
||
result = ac_build_gather_values(&ctx->ac, src, num_components);
|
||
break;
|
||
case nir_op_f2i8:
|
||
case nir_op_f2i16:
|
||
case nir_op_f2imp:
|
||
case nir_op_f2i32:
|
||
case nir_op_f2i64:
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
result = LLVMBuildFPToSI(ctx->ac.builder, src[0], def_type, "");
|
||
break;
|
||
case nir_op_f2u8:
|
||
case nir_op_f2u16:
|
||
case nir_op_f2ump:
|
||
case nir_op_f2u32:
|
||
case nir_op_f2u64:
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
result = LLVMBuildFPToUI(ctx->ac.builder, src[0], def_type, "");
|
||
break;
|
||
case nir_op_i2f16:
|
||
case nir_op_i2fmp:
|
||
case nir_op_i2f32:
|
||
case nir_op_i2f64:
|
||
result = LLVMBuildSIToFP(ctx->ac.builder, src[0], ac_to_float_type(&ctx->ac, def_type), "");
|
||
break;
|
||
case nir_op_u2f16:
|
||
case nir_op_u2fmp:
|
||
case nir_op_u2f32:
|
||
case nir_op_u2f64:
|
||
result = LLVMBuildUIToFP(ctx->ac.builder, src[0], ac_to_float_type(&ctx->ac, def_type), "");
|
||
break;
|
||
case nir_op_f2f16_rtz:
|
||
case nir_op_f2f16:
|
||
case nir_op_f2fmp:
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
|
||
/* For OpenGL, we want fast packing with v_cvt_pkrtz_f16, but if we use it,
|
||
* all f32->f16 conversions have to round towards zero, because both scalar
|
||
* and vec2 down-conversions have to round equally.
|
||
*/
|
||
if (ctx->ac.float_mode == AC_FLOAT_MODE_DEFAULT_OPENGL || instr->op == nir_op_f2f16_rtz) {
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
|
||
if (LLVMTypeOf(src[0]) == ctx->ac.f64)
|
||
src[0] = LLVMBuildFPTrunc(ctx->ac.builder, src[0], ctx->ac.f32, "");
|
||
|
||
/* Fast path conversion. This only works if NIR is vectorized
|
||
* to vec2 16.
|
||
*/
|
||
if (LLVMTypeOf(src[0]) == ctx->ac.v2f32) {
|
||
LLVMValueRef args[] = {
|
||
ac_llvm_extract_elem(&ctx->ac, src[0], 0),
|
||
ac_llvm_extract_elem(&ctx->ac, src[0], 1),
|
||
};
|
||
result = ac_build_cvt_pkrtz_f16(&ctx->ac, args);
|
||
break;
|
||
}
|
||
|
||
assert(ac_get_llvm_num_components(src[0]) == 1);
|
||
LLVMValueRef param[2] = {src[0], LLVMGetUndef(ctx->ac.f32)};
|
||
result = ac_build_cvt_pkrtz_f16(&ctx->ac, param);
|
||
result = LLVMBuildExtractElement(ctx->ac.builder, result, ctx->ac.i32_0, "");
|
||
} else {
|
||
if (ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[0])) < ac_get_elem_bits(&ctx->ac, def_type))
|
||
result =
|
||
LLVMBuildFPExt(ctx->ac.builder, src[0], ac_to_float_type(&ctx->ac, def_type), "");
|
||
else
|
||
result =
|
||
LLVMBuildFPTrunc(ctx->ac.builder, src[0], ac_to_float_type(&ctx->ac, def_type), "");
|
||
}
|
||
break;
|
||
case nir_op_f2f16_rtne:
|
||
case nir_op_f2f32:
|
||
case nir_op_f2f64:
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
if (ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[0])) < ac_get_elem_bits(&ctx->ac, def_type))
|
||
result = LLVMBuildFPExt(ctx->ac.builder, src[0], ac_to_float_type(&ctx->ac, def_type), "");
|
||
else
|
||
result =
|
||
LLVMBuildFPTrunc(ctx->ac.builder, src[0], ac_to_float_type(&ctx->ac, def_type), "");
|
||
break;
|
||
case nir_op_u2u8:
|
||
case nir_op_u2u16:
|
||
case nir_op_u2u32:
|
||
case nir_op_u2u64:
|
||
if (ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[0])) < ac_get_elem_bits(&ctx->ac, def_type))
|
||
result = LLVMBuildZExt(ctx->ac.builder, src[0], def_type, "");
|
||
else
|
||
result = LLVMBuildTrunc(ctx->ac.builder, src[0], def_type, "");
|
||
break;
|
||
case nir_op_i2i8:
|
||
case nir_op_i2i16:
|
||
case nir_op_i2imp:
|
||
case nir_op_i2i32:
|
||
case nir_op_i2i64:
|
||
if (ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[0])) < ac_get_elem_bits(&ctx->ac, def_type))
|
||
result = LLVMBuildSExt(ctx->ac.builder, src[0], def_type, "");
|
||
else
|
||
result = LLVMBuildTrunc(ctx->ac.builder, src[0], def_type, "");
|
||
break;
|
||
case nir_op_bcsel:
|
||
result = emit_bcsel(&ctx->ac, src[0], src[1], src[2]);
|
||
break;
|
||
case nir_op_find_lsb:
|
||
result = ac_find_lsb(&ctx->ac, ctx->ac.i32, src[0]);
|
||
break;
|
||
case nir_op_ufind_msb:
|
||
result = ac_build_umsb(&ctx->ac, src[0], ctx->ac.i32);
|
||
break;
|
||
case nir_op_ifind_msb:
|
||
result = ac_build_imsb(&ctx->ac, src[0], ctx->ac.i32);
|
||
break;
|
||
case nir_op_uadd_carry:
|
||
result = emit_uint_carry(&ctx->ac, "llvm.uadd.with.overflow.i32", src[0], src[1]);
|
||
break;
|
||
case nir_op_usub_borrow:
|
||
result = emit_uint_carry(&ctx->ac, "llvm.usub.with.overflow.i32", src[0], src[1]);
|
||
break;
|
||
case nir_op_b2f16:
|
||
case nir_op_b2f32:
|
||
case nir_op_b2f64:
|
||
result = emit_b2f(&ctx->ac, src[0], instr->dest.dest.ssa.bit_size);
|
||
break;
|
||
case nir_op_f2b1:
|
||
result = emit_f2b(&ctx->ac, src[0]);
|
||
break;
|
||
case nir_op_b2i8:
|
||
case nir_op_b2i16:
|
||
case nir_op_b2i32:
|
||
case nir_op_b2i64:
|
||
result = emit_b2i(&ctx->ac, src[0], instr->dest.dest.ssa.bit_size);
|
||
break;
|
||
case nir_op_i2b1:
|
||
case nir_op_b2b1: /* after loads */
|
||
result = emit_i2b(&ctx->ac, src[0]);
|
||
break;
|
||
case nir_op_b2b16: /* before stores */
|
||
result = LLVMBuildZExt(ctx->ac.builder, src[0], ctx->ac.i16, "");
|
||
break;
|
||
case nir_op_b2b32: /* before stores */
|
||
result = LLVMBuildZExt(ctx->ac.builder, src[0], ctx->ac.i32, "");
|
||
break;
|
||
case nir_op_fquantize2f16:
|
||
result = emit_f2f16(&ctx->ac, src[0]);
|
||
break;
|
||
case nir_op_umul_high:
|
||
result = emit_umul_high(&ctx->ac, src[0], src[1]);
|
||
break;
|
||
case nir_op_imul_high:
|
||
result = emit_imul_high(&ctx->ac, src[0], src[1]);
|
||
break;
|
||
case nir_op_pack_half_2x16:
|
||
result = emit_pack_2x16(&ctx->ac, src[0], ac_build_cvt_pkrtz_f16);
|
||
break;
|
||
case nir_op_pack_half_2x16_split:
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
src[1] = ac_to_float(&ctx->ac, src[1]);
|
||
result = LLVMBuildBitCast(ctx->ac.builder,
|
||
ac_build_cvt_pkrtz_f16(&ctx->ac, src),
|
||
ctx->ac.i32, "");
|
||
break;
|
||
case nir_op_pack_snorm_2x16:
|
||
result = emit_pack_2x16(&ctx->ac, src[0], ac_build_cvt_pknorm_i16);
|
||
break;
|
||
case nir_op_pack_unorm_2x16:
|
||
result = emit_pack_2x16(&ctx->ac, src[0], ac_build_cvt_pknorm_u16);
|
||
break;
|
||
case nir_op_pack_uint_2x16: {
|
||
LLVMValueRef comp[2];
|
||
|
||
comp[0] = LLVMBuildExtractElement(ctx->ac.builder, src[0], ctx->ac.i32_0, "");
|
||
comp[1] = LLVMBuildExtractElement(ctx->ac.builder, src[0], ctx->ac.i32_1, "");
|
||
|
||
result = ac_build_cvt_pk_u16(&ctx->ac, comp, 16, false);
|
||
break;
|
||
}
|
||
case nir_op_pack_sint_2x16: {
|
||
LLVMValueRef comp[2];
|
||
|
||
comp[0] = LLVMBuildExtractElement(ctx->ac.builder, src[0], ctx->ac.i32_0, "");
|
||
comp[1] = LLVMBuildExtractElement(ctx->ac.builder, src[0], ctx->ac.i32_1, "");
|
||
|
||
result = ac_build_cvt_pk_i16(&ctx->ac, comp, 16, false);
|
||
break;
|
||
}
|
||
case nir_op_unpack_half_2x16:
|
||
result = emit_unpack_half_2x16(&ctx->ac, src[0]);
|
||
break;
|
||
case nir_op_unpack_half_2x16_split_x: {
|
||
assert(ac_get_llvm_num_components(src[0]) == 1);
|
||
LLVMValueRef tmp = emit_unpack_half_2x16(&ctx->ac, src[0]);
|
||
result = LLVMBuildExtractElement(ctx->ac.builder, tmp, ctx->ac.i32_0, "");
|
||
break;
|
||
}
|
||
case nir_op_unpack_half_2x16_split_y: {
|
||
assert(ac_get_llvm_num_components(src[0]) == 1);
|
||
LLVMValueRef tmp = emit_unpack_half_2x16(&ctx->ac, src[0]);
|
||
result = LLVMBuildExtractElement(ctx->ac.builder, tmp, ctx->ac.i32_1, "");
|
||
break;
|
||
}
|
||
case nir_op_fddx:
|
||
case nir_op_fddy:
|
||
case nir_op_fddx_fine:
|
||
case nir_op_fddy_fine:
|
||
case nir_op_fddx_coarse:
|
||
case nir_op_fddy_coarse:
|
||
result = emit_ddxy(ctx, instr->op, src[0]);
|
||
break;
|
||
|
||
case nir_op_unpack_64_4x16: {
|
||
result = LLVMBuildBitCast(ctx->ac.builder, src[0], ctx->ac.v4i16, "");
|
||
break;
|
||
}
|
||
case nir_op_pack_64_4x16: {
|
||
result = LLVMBuildBitCast(ctx->ac.builder, src[0], ctx->ac.i64, "");
|
||
break;
|
||
}
|
||
|
||
case nir_op_unpack_64_2x32: {
|
||
result = LLVMBuildBitCast(ctx->ac.builder, src[0],
|
||
ctx->ac.v2i32, "");
|
||
break;
|
||
}
|
||
case nir_op_unpack_64_2x32_split_x: {
|
||
assert(ac_get_llvm_num_components(src[0]) == 1);
|
||
LLVMValueRef tmp = LLVMBuildBitCast(ctx->ac.builder, src[0], ctx->ac.v2i32, "");
|
||
result = LLVMBuildExtractElement(ctx->ac.builder, tmp, ctx->ac.i32_0, "");
|
||
break;
|
||
}
|
||
case nir_op_unpack_64_2x32_split_y: {
|
||
assert(ac_get_llvm_num_components(src[0]) == 1);
|
||
LLVMValueRef tmp = LLVMBuildBitCast(ctx->ac.builder, src[0], ctx->ac.v2i32, "");
|
||
result = LLVMBuildExtractElement(ctx->ac.builder, tmp, ctx->ac.i32_1, "");
|
||
break;
|
||
}
|
||
|
||
case nir_op_pack_64_2x32: {
|
||
result = LLVMBuildBitCast(ctx->ac.builder, src[0],
|
||
ctx->ac.i64, "");
|
||
break;
|
||
}
|
||
case nir_op_pack_64_2x32_split: {
|
||
LLVMValueRef tmp = ac_build_gather_values(&ctx->ac, src, 2);
|
||
result = LLVMBuildBitCast(ctx->ac.builder, tmp, ctx->ac.i64, "");
|
||
break;
|
||
}
|
||
|
||
case nir_op_pack_32_4x8:
|
||
case nir_op_pack_32_2x16: {
|
||
result = LLVMBuildBitCast(ctx->ac.builder, src[0],
|
||
ctx->ac.i32, "");
|
||
break;
|
||
}
|
||
case nir_op_pack_32_2x16_split: {
|
||
LLVMValueRef tmp = ac_build_gather_values(&ctx->ac, src, 2);
|
||
result = LLVMBuildBitCast(ctx->ac.builder, tmp, ctx->ac.i32, "");
|
||
break;
|
||
}
|
||
|
||
case nir_op_unpack_32_2x16: {
|
||
result = LLVMBuildBitCast(ctx->ac.builder, src[0],
|
||
ctx->ac.v2i16, "");
|
||
break;
|
||
}
|
||
case nir_op_unpack_32_2x16_split_x: {
|
||
LLVMValueRef tmp = LLVMBuildBitCast(ctx->ac.builder, src[0], ctx->ac.v2i16, "");
|
||
result = LLVMBuildExtractElement(ctx->ac.builder, tmp, ctx->ac.i32_0, "");
|
||
break;
|
||
}
|
||
case nir_op_unpack_32_2x16_split_y: {
|
||
LLVMValueRef tmp = LLVMBuildBitCast(ctx->ac.builder, src[0], ctx->ac.v2i16, "");
|
||
result = LLVMBuildExtractElement(ctx->ac.builder, tmp, ctx->ac.i32_1, "");
|
||
break;
|
||
}
|
||
|
||
case nir_op_cube_face_coord_amd: {
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
LLVMValueRef results[2];
|
||
LLVMValueRef in[3];
|
||
for (unsigned chan = 0; chan < 3; chan++)
|
||
in[chan] = ac_llvm_extract_elem(&ctx->ac, src[0], chan);
|
||
results[0] = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.cubesc", ctx->ac.f32, in, 3,
|
||
AC_FUNC_ATTR_READNONE);
|
||
results[1] = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.cubetc", ctx->ac.f32, in, 3,
|
||
AC_FUNC_ATTR_READNONE);
|
||
LLVMValueRef ma = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.cubema", ctx->ac.f32, in, 3,
|
||
AC_FUNC_ATTR_READNONE);
|
||
results[0] = ac_build_fdiv(&ctx->ac, results[0], ma);
|
||
results[1] = ac_build_fdiv(&ctx->ac, results[1], ma);
|
||
LLVMValueRef offset = LLVMConstReal(ctx->ac.f32, 0.5);
|
||
results[0] = LLVMBuildFAdd(ctx->ac.builder, results[0], offset, "");
|
||
results[1] = LLVMBuildFAdd(ctx->ac.builder, results[1], offset, "");
|
||
result = ac_build_gather_values(&ctx->ac, results, 2);
|
||
break;
|
||
}
|
||
|
||
case nir_op_cube_face_index_amd: {
|
||
src[0] = ac_to_float(&ctx->ac, src[0]);
|
||
LLVMValueRef in[3];
|
||
for (unsigned chan = 0; chan < 3; chan++)
|
||
in[chan] = ac_llvm_extract_elem(&ctx->ac, src[0], chan);
|
||
result = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.cubeid", ctx->ac.f32, in, 3,
|
||
AC_FUNC_ATTR_READNONE);
|
||
break;
|
||
}
|
||
|
||
case nir_op_extract_u8:
|
||
case nir_op_extract_i8:
|
||
case nir_op_extract_u16:
|
||
case nir_op_extract_i16: {
|
||
bool is_signed = instr->op == nir_op_extract_i16 || instr->op == nir_op_extract_i8;
|
||
unsigned size = instr->op == nir_op_extract_u8 || instr->op == nir_op_extract_i8 ? 8 : 16;
|
||
LLVMValueRef offset = LLVMConstInt(LLVMTypeOf(src[0]), nir_src_as_uint(instr->src[1].src) * size, false);
|
||
result = LLVMBuildLShr(ctx->ac.builder, src[0], offset, "");
|
||
result = LLVMBuildTrunc(ctx->ac.builder, result, LLVMIntTypeInContext(ctx->ac.context, size), "");
|
||
if (is_signed)
|
||
result = LLVMBuildSExt(ctx->ac.builder, result, LLVMTypeOf(src[0]), "");
|
||
else
|
||
result = LLVMBuildZExt(ctx->ac.builder, result, LLVMTypeOf(src[0]), "");
|
||
break;
|
||
}
|
||
|
||
case nir_op_insert_u8:
|
||
case nir_op_insert_u16: {
|
||
unsigned size = instr->op == nir_op_insert_u8 ? 8 : 16;
|
||
LLVMValueRef offset = LLVMConstInt(LLVMTypeOf(src[0]), nir_src_as_uint(instr->src[1].src) * size, false);
|
||
LLVMValueRef mask = LLVMConstInt(LLVMTypeOf(src[0]), u_bit_consecutive(0, size), false);
|
||
result = LLVMBuildShl(ctx->ac.builder, LLVMBuildAnd(ctx->ac.builder, src[0], mask, ""), offset, "");
|
||
break;
|
||
}
|
||
|
||
case nir_op_sdot_4x8_iadd:
|
||
case nir_op_udot_4x8_uadd:
|
||
case nir_op_sdot_4x8_iadd_sat:
|
||
case nir_op_udot_4x8_uadd_sat: {
|
||
const char *name = instr->op == nir_op_sdot_4x8_iadd ||
|
||
instr->op == nir_op_sdot_4x8_iadd_sat
|
||
? "llvm.amdgcn.sdot4" : "llvm.amdgcn.udot4";
|
||
src[3] = LLVMConstInt(ctx->ac.i1, instr->op == nir_op_sdot_4x8_iadd_sat ||
|
||
instr->op == nir_op_udot_4x8_uadd_sat, false);
|
||
result = ac_build_intrinsic(&ctx->ac, name, def_type, src, 4, AC_FUNC_ATTR_READNONE);
|
||
break;
|
||
}
|
||
|
||
case nir_op_sdot_2x16_iadd:
|
||
case nir_op_udot_2x16_uadd:
|
||
case nir_op_sdot_2x16_iadd_sat:
|
||
case nir_op_udot_2x16_uadd_sat: {
|
||
const char *name = instr->op == nir_op_sdot_2x16_iadd ||
|
||
instr->op == nir_op_sdot_2x16_iadd_sat
|
||
? "llvm.amdgcn.sdot2" : "llvm.amdgcn.udot2";
|
||
src[0] = LLVMBuildBitCast(ctx->ac.builder, src[0], ctx->ac.v2i16, "");
|
||
src[1] = LLVMBuildBitCast(ctx->ac.builder, src[1], ctx->ac.v2i16, "");
|
||
src[3] = LLVMConstInt(ctx->ac.i1, instr->op == nir_op_sdot_2x16_iadd_sat ||
|
||
instr->op == nir_op_udot_2x16_uadd_sat, false);
|
||
result = ac_build_intrinsic(&ctx->ac, name, def_type, src, 4, AC_FUNC_ATTR_READNONE);
|
||
break;
|
||
}
|
||
|
||
case nir_op_sad_u8x4:
|
||
result = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.sad.u8", ctx->ac.i32,
|
||
(LLVMValueRef[]){src[0], src[1], src[2]}, 3,
|
||
AC_FUNC_ATTR_READNONE);
|
||
break;
|
||
|
||
default:
|
||
fprintf(stderr, "Unknown NIR alu instr: ");
|
||
nir_print_instr(&instr->instr, stderr);
|
||
fprintf(stderr, "\n");
|
||
abort();
|
||
}
|
||
|
||
if (result) {
|
||
assert(instr->dest.dest.is_ssa);
|
||
result = ac_to_integer_or_pointer(&ctx->ac, result);
|
||
ctx->ssa_defs[instr->dest.dest.ssa.index] = result;
|
||
}
|
||
}
|
||
|
||
static void visit_load_const(struct ac_nir_context *ctx, const nir_load_const_instr *instr)
|
||
{
|
||
LLVMValueRef values[4], value = NULL;
|
||
LLVMTypeRef element_type = LLVMIntTypeInContext(ctx->ac.context, instr->def.bit_size);
|
||
|
||
for (unsigned i = 0; i < instr->def.num_components; ++i) {
|
||
switch (instr->def.bit_size) {
|
||
case 1:
|
||
values[i] = LLVMConstInt(element_type, instr->value[i].b, false);
|
||
break;
|
||
case 8:
|
||
values[i] = LLVMConstInt(element_type, instr->value[i].u8, false);
|
||
break;
|
||
case 16:
|
||
values[i] = LLVMConstInt(element_type, instr->value[i].u16, false);
|
||
break;
|
||
case 32:
|
||
values[i] = LLVMConstInt(element_type, instr->value[i].u32, false);
|
||
break;
|
||
case 64:
|
||
values[i] = LLVMConstInt(element_type, instr->value[i].u64, false);
|
||
break;
|
||
default:
|
||
fprintf(stderr, "unsupported nir load_const bit_size: %d\n", instr->def.bit_size);
|
||
abort();
|
||
}
|
||
}
|
||
if (instr->def.num_components > 1) {
|
||
value = LLVMConstVector(values, instr->def.num_components);
|
||
} else
|
||
value = values[0];
|
||
|
||
ctx->ssa_defs[instr->def.index] = value;
|
||
}
|
||
|
||
static LLVMValueRef get_buffer_size(struct ac_nir_context *ctx, LLVMValueRef descriptor,
|
||
bool in_elements)
|
||
{
|
||
LLVMValueRef size =
|
||
LLVMBuildExtractElement(ctx->ac.builder, descriptor, LLVMConstInt(ctx->ac.i32, 2, false), "");
|
||
|
||
/* GFX8 only */
|
||
if (ctx->ac.chip_class == GFX8 && in_elements) {
|
||
/* On GFX8, the descriptor contains the size in bytes,
|
||
* but TXQ must return the size in elements.
|
||
* The stride is always non-zero for resources using TXQ.
|
||
*/
|
||
LLVMValueRef stride = LLVMBuildExtractElement(ctx->ac.builder, descriptor, ctx->ac.i32_1, "");
|
||
stride = LLVMBuildLShr(ctx->ac.builder, stride, LLVMConstInt(ctx->ac.i32, 16, false), "");
|
||
stride = LLVMBuildAnd(ctx->ac.builder, stride, LLVMConstInt(ctx->ac.i32, 0x3fff, false), "");
|
||
|
||
size = LLVMBuildUDiv(ctx->ac.builder, size, stride, "");
|
||
}
|
||
return size;
|
||
}
|
||
|
||
/* Gather4 should follow the same rules as bilinear filtering, but the hardware
|
||
* incorrectly forces nearest filtering if the texture format is integer.
|
||
* The only effect it has on Gather4, which always returns 4 texels for
|
||
* bilinear filtering, is that the final coordinates are off by 0.5 of
|
||
* the texel size.
|
||
*
|
||
* The workaround is to subtract 0.5 from the unnormalized coordinates,
|
||
* or (0.5 / size) from the normalized coordinates.
|
||
*
|
||
* However, cube textures with 8_8_8_8 data formats require a different
|
||
* workaround of overriding the num format to USCALED/SSCALED. This would lose
|
||
* precision in 32-bit data formats, so it needs to be applied dynamically at
|
||
* runtime. In this case, return an i1 value that indicates whether the
|
||
* descriptor was overridden (and hence a fixup of the sampler result is needed).
|
||
*/
|
||
static LLVMValueRef lower_gather4_integer(struct ac_llvm_context *ctx, struct ac_image_args *args,
|
||
const nir_tex_instr *instr)
|
||
{
|
||
nir_alu_type stype = nir_alu_type_get_base_type(instr->dest_type);
|
||
LLVMValueRef wa_8888 = NULL;
|
||
LLVMValueRef half_texel[2];
|
||
LLVMValueRef result;
|
||
|
||
assert(stype == nir_type_int || stype == nir_type_uint);
|
||
|
||
if (instr->sampler_dim == GLSL_SAMPLER_DIM_CUBE) {
|
||
LLVMValueRef formats;
|
||
LLVMValueRef data_format;
|
||
LLVMValueRef wa_formats;
|
||
|
||
formats = LLVMBuildExtractElement(ctx->builder, args->resource, ctx->i32_1, "");
|
||
|
||
data_format = LLVMBuildLShr(ctx->builder, formats, LLVMConstInt(ctx->i32, 20, false), "");
|
||
data_format =
|
||
LLVMBuildAnd(ctx->builder, data_format, LLVMConstInt(ctx->i32, (1u << 6) - 1, false), "");
|
||
wa_8888 = LLVMBuildICmp(ctx->builder, LLVMIntEQ, data_format,
|
||
LLVMConstInt(ctx->i32, V_008F14_IMG_DATA_FORMAT_8_8_8_8, false), "");
|
||
|
||
uint32_t wa_num_format = stype == nir_type_uint
|
||
? S_008F14_NUM_FORMAT(V_008F14_IMG_NUM_FORMAT_USCALED)
|
||
: S_008F14_NUM_FORMAT(V_008F14_IMG_NUM_FORMAT_SSCALED);
|
||
wa_formats = LLVMBuildAnd(ctx->builder, formats,
|
||
LLVMConstInt(ctx->i32, C_008F14_NUM_FORMAT, false), "");
|
||
wa_formats =
|
||
LLVMBuildOr(ctx->builder, wa_formats, LLVMConstInt(ctx->i32, wa_num_format, false), "");
|
||
|
||
formats = LLVMBuildSelect(ctx->builder, wa_8888, wa_formats, formats, "");
|
||
args->resource =
|
||
LLVMBuildInsertElement(ctx->builder, args->resource, formats, ctx->i32_1, "");
|
||
}
|
||
|
||
if (instr->sampler_dim == GLSL_SAMPLER_DIM_RECT) {
|
||
assert(!wa_8888);
|
||
half_texel[0] = half_texel[1] = LLVMConstReal(ctx->f32, -0.5);
|
||
} else {
|
||
struct ac_image_args resinfo = {0};
|
||
LLVMBasicBlockRef bbs[2];
|
||
|
||
LLVMValueRef unnorm = NULL;
|
||
LLVMValueRef default_offset = ctx->f32_0;
|
||
if (instr->sampler_dim == GLSL_SAMPLER_DIM_2D && !instr->is_array) {
|
||
/* In vulkan, whether the sampler uses unnormalized
|
||
* coordinates or not is a dynamic property of the
|
||
* sampler. Hence, to figure out whether or not we
|
||
* need to divide by the texture size, we need to test
|
||
* the sampler at runtime. This tests the bit set by
|
||
* radv_init_sampler().
|
||
*/
|
||
LLVMValueRef sampler0 =
|
||
LLVMBuildExtractElement(ctx->builder, args->sampler, ctx->i32_0, "");
|
||
sampler0 = LLVMBuildLShr(ctx->builder, sampler0, LLVMConstInt(ctx->i32, 15, false), "");
|
||
sampler0 = LLVMBuildAnd(ctx->builder, sampler0, ctx->i32_1, "");
|
||
unnorm = LLVMBuildICmp(ctx->builder, LLVMIntEQ, sampler0, ctx->i32_1, "");
|
||
default_offset = LLVMConstReal(ctx->f32, -0.5);
|
||
}
|
||
|
||
bbs[0] = LLVMGetInsertBlock(ctx->builder);
|
||
if (wa_8888 || unnorm) {
|
||
assert(!(wa_8888 && unnorm));
|
||
LLVMValueRef not_needed = wa_8888 ? wa_8888 : unnorm;
|
||
/* Skip the texture size query entirely if we don't need it. */
|
||
ac_build_ifcc(ctx, LLVMBuildNot(ctx->builder, not_needed, ""), 2000);
|
||
bbs[1] = LLVMGetInsertBlock(ctx->builder);
|
||
}
|
||
|
||
/* Query the texture size. */
|
||
resinfo.dim = ac_get_sampler_dim(ctx->chip_class, instr->sampler_dim, instr->is_array);
|
||
resinfo.opcode = ac_image_get_resinfo;
|
||
resinfo.dmask = 0xf;
|
||
resinfo.lod = ctx->i32_0;
|
||
resinfo.resource = args->resource;
|
||
resinfo.attributes = AC_FUNC_ATTR_READNONE;
|
||
LLVMValueRef size = ac_build_image_opcode(ctx, &resinfo);
|
||
|
||
/* Compute -0.5 / size. */
|
||
for (unsigned c = 0; c < 2; c++) {
|
||
half_texel[c] =
|
||
LLVMBuildExtractElement(ctx->builder, size, LLVMConstInt(ctx->i32, c, 0), "");
|
||
half_texel[c] = LLVMBuildUIToFP(ctx->builder, half_texel[c], ctx->f32, "");
|
||
half_texel[c] = ac_build_fdiv(ctx, ctx->f32_1, half_texel[c]);
|
||
half_texel[c] =
|
||
LLVMBuildFMul(ctx->builder, half_texel[c], LLVMConstReal(ctx->f32, -0.5), "");
|
||
}
|
||
|
||
if (wa_8888 || unnorm) {
|
||
ac_build_endif(ctx, 2000);
|
||
|
||
for (unsigned c = 0; c < 2; c++) {
|
||
LLVMValueRef values[2] = {default_offset, half_texel[c]};
|
||
half_texel[c] = ac_build_phi(ctx, ctx->f32, 2, values, bbs);
|
||
}
|
||
}
|
||
}
|
||
|
||
for (unsigned c = 0; c < 2; c++) {
|
||
LLVMValueRef tmp;
|
||
tmp = LLVMBuildBitCast(ctx->builder, args->coords[c], ctx->f32, "");
|
||
args->coords[c] = LLVMBuildFAdd(ctx->builder, tmp, half_texel[c], "");
|
||
}
|
||
|
||
args->attributes = AC_FUNC_ATTR_READNONE;
|
||
result = ac_build_image_opcode(ctx, args);
|
||
|
||
if (instr->sampler_dim == GLSL_SAMPLER_DIM_CUBE) {
|
||
LLVMValueRef tmp, tmp2;
|
||
|
||
/* if the cube workaround is in place, f2i the result. */
|
||
for (unsigned c = 0; c < 4; c++) {
|
||
tmp = LLVMBuildExtractElement(ctx->builder, result, LLVMConstInt(ctx->i32, c, false), "");
|
||
if (stype == nir_type_uint)
|
||
tmp2 = LLVMBuildFPToUI(ctx->builder, tmp, ctx->i32, "");
|
||
else
|
||
tmp2 = LLVMBuildFPToSI(ctx->builder, tmp, ctx->i32, "");
|
||
tmp = LLVMBuildBitCast(ctx->builder, tmp, ctx->i32, "");
|
||
tmp2 = LLVMBuildBitCast(ctx->builder, tmp2, ctx->i32, "");
|
||
tmp = LLVMBuildSelect(ctx->builder, wa_8888, tmp2, tmp, "");
|
||
tmp = LLVMBuildBitCast(ctx->builder, tmp, ctx->f32, "");
|
||
result =
|
||
LLVMBuildInsertElement(ctx->builder, result, tmp, LLVMConstInt(ctx->i32, c, false), "");
|
||
}
|
||
}
|
||
return result;
|
||
}
|
||
|
||
static LLVMValueRef build_tex_intrinsic(struct ac_nir_context *ctx, const nir_tex_instr *instr,
|
||
struct ac_image_args *args)
|
||
{
|
||
assert((!args->tfe || !args->d16) && "unsupported");
|
||
|
||
if (instr->sampler_dim == GLSL_SAMPLER_DIM_BUF) {
|
||
unsigned mask = nir_ssa_def_components_read(&instr->dest.ssa);
|
||
|
||
assert(instr->dest.is_ssa);
|
||
|
||
/* Buffers don't support A16. */
|
||
if (args->a16)
|
||
args->coords[0] = LLVMBuildZExt(ctx->ac.builder, args->coords[0], ctx->ac.i32, "");
|
||
|
||
return ac_build_buffer_load_format(&ctx->ac, args->resource, args->coords[0], ctx->ac.i32_0,
|
||
util_last_bit(mask), 0, true,
|
||
instr->dest.ssa.bit_size == 16,
|
||
args->tfe);
|
||
}
|
||
|
||
args->opcode = ac_image_sample;
|
||
|
||
switch (instr->op) {
|
||
case nir_texop_txf:
|
||
case nir_texop_txf_ms:
|
||
case nir_texop_samples_identical:
|
||
args->opcode = args->level_zero || instr->sampler_dim == GLSL_SAMPLER_DIM_MS
|
||
? ac_image_load
|
||
: ac_image_load_mip;
|
||
args->level_zero = false;
|
||
break;
|
||
case nir_texop_txs:
|
||
case nir_texop_query_levels:
|
||
args->opcode = ac_image_get_resinfo;
|
||
if (!args->lod)
|
||
args->lod = ctx->ac.i32_0;
|
||
args->level_zero = false;
|
||
break;
|
||
case nir_texop_tex:
|
||
if (ctx->stage != MESA_SHADER_FRAGMENT &&
|
||
(ctx->stage != MESA_SHADER_COMPUTE ||
|
||
ctx->info->cs.derivative_group == DERIVATIVE_GROUP_NONE)) {
|
||
assert(!args->lod);
|
||
args->level_zero = true;
|
||
}
|
||
break;
|
||
case nir_texop_tg4:
|
||
args->opcode = ac_image_gather4;
|
||
if (!args->lod && !args->bias)
|
||
args->level_zero = true;
|
||
break;
|
||
case nir_texop_lod:
|
||
args->opcode = ac_image_get_lod;
|
||
break;
|
||
case nir_texop_fragment_fetch_amd:
|
||
case nir_texop_fragment_mask_fetch_amd:
|
||
args->opcode = ac_image_load;
|
||
args->level_zero = false;
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
/* Aldebaran doesn't have image_sample_lz, but image_sample behaves like lz. */
|
||
if (!ctx->ac.info->has_3d_cube_border_color_mipmap)
|
||
args->level_zero = false;
|
||
|
||
if (instr->op == nir_texop_tg4 && ctx->ac.chip_class <= GFX8 &&
|
||
(instr->dest_type & (nir_type_int | nir_type_uint))) {
|
||
return lower_gather4_integer(&ctx->ac, args, instr);
|
||
}
|
||
|
||
/* Fixup for GFX9 which allocates 1D textures as 2D. */
|
||
if (instr->op == nir_texop_lod && ctx->ac.chip_class == GFX9) {
|
||
if ((args->dim == ac_image_2darray || args->dim == ac_image_2d) && !args->coords[1]) {
|
||
args->coords[1] = ctx->ac.i32_0;
|
||
}
|
||
}
|
||
|
||
args->attributes = AC_FUNC_ATTR_READNONE;
|
||
bool cs_derivs =
|
||
ctx->stage == MESA_SHADER_COMPUTE && ctx->info->cs.derivative_group != DERIVATIVE_GROUP_NONE;
|
||
if (ctx->stage == MESA_SHADER_FRAGMENT || cs_derivs) {
|
||
/* Prevent texture instructions with implicit derivatives from being
|
||
* sinked into branches. */
|
||
switch (instr->op) {
|
||
case nir_texop_tex:
|
||
case nir_texop_txb:
|
||
case nir_texop_lod:
|
||
args->attributes |= AC_FUNC_ATTR_CONVERGENT;
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
return ac_build_image_opcode(&ctx->ac, args);
|
||
}
|
||
|
||
static LLVMValueRef visit_load_push_constant(struct ac_nir_context *ctx, nir_intrinsic_instr *instr)
|
||
{
|
||
LLVMValueRef ptr, addr;
|
||
LLVMValueRef src0 = get_src(ctx, instr->src[0]);
|
||
unsigned index = nir_intrinsic_base(instr);
|
||
|
||
addr = LLVMConstInt(ctx->ac.i32, index, 0);
|
||
addr = LLVMBuildAdd(ctx->ac.builder, addr, src0, "");
|
||
|
||
/* Load constant values from user SGPRS when possible, otherwise
|
||
* fallback to the default path that loads directly from memory.
|
||
*/
|
||
if (LLVMIsConstant(src0) && instr->dest.ssa.bit_size == 32) {
|
||
unsigned count = instr->dest.ssa.num_components;
|
||
unsigned offset = index;
|
||
|
||
offset += LLVMConstIntGetZExtValue(src0);
|
||
offset /= 4;
|
||
|
||
uint64_t mask = BITFIELD64_MASK(count) << offset;
|
||
if ((ctx->args->inline_push_const_mask | mask) == ctx->args->inline_push_const_mask &&
|
||
offset + count <= (sizeof(ctx->args->inline_push_const_mask) * 8u)) {
|
||
LLVMValueRef *const push_constants = alloca(count * sizeof(LLVMValueRef));
|
||
unsigned arg_index =
|
||
util_bitcount64(ctx->args->inline_push_const_mask & BITFIELD64_MASK(offset));
|
||
for (unsigned i = 0; i < count; i++)
|
||
push_constants[i] = ac_get_arg(&ctx->ac, ctx->args->inline_push_consts[arg_index++]);
|
||
return ac_build_gather_values(&ctx->ac, push_constants, count);
|
||
}
|
||
}
|
||
|
||
ptr = LLVMBuildGEP(ctx->ac.builder, ac_get_arg(&ctx->ac, ctx->args->push_constants), &addr, 1, "");
|
||
|
||
if (instr->dest.ssa.bit_size == 8) {
|
||
unsigned load_dwords = instr->dest.ssa.num_components > 1 ? 2 : 1;
|
||
LLVMTypeRef vec_type = LLVMVectorType(ctx->ac.i8, 4 * load_dwords);
|
||
ptr = ac_cast_ptr(&ctx->ac, ptr, vec_type);
|
||
LLVMValueRef res = LLVMBuildLoad2(ctx->ac.builder, vec_type, ptr, "");
|
||
|
||
LLVMValueRef params[3];
|
||
if (load_dwords > 1) {
|
||
LLVMValueRef res_vec = LLVMBuildBitCast(ctx->ac.builder, res, ctx->ac.v2i32, "");
|
||
params[0] = LLVMBuildExtractElement(ctx->ac.builder, res_vec,
|
||
LLVMConstInt(ctx->ac.i32, 1, false), "");
|
||
params[1] = LLVMBuildExtractElement(ctx->ac.builder, res_vec,
|
||
LLVMConstInt(ctx->ac.i32, 0, false), "");
|
||
} else {
|
||
res = LLVMBuildBitCast(ctx->ac.builder, res, ctx->ac.i32, "");
|
||
params[0] = ctx->ac.i32_0;
|
||
params[1] = res;
|
||
}
|
||
params[2] = addr;
|
||
res = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.alignbyte", ctx->ac.i32, params, 3, 0);
|
||
|
||
res = LLVMBuildTrunc(
|
||
ctx->ac.builder, res,
|
||
LLVMIntTypeInContext(ctx->ac.context, instr->dest.ssa.num_components * 8), "");
|
||
if (instr->dest.ssa.num_components > 1)
|
||
res = LLVMBuildBitCast(ctx->ac.builder, res,
|
||
LLVMVectorType(ctx->ac.i8, instr->dest.ssa.num_components), "");
|
||
return res;
|
||
} else if (instr->dest.ssa.bit_size == 16) {
|
||
unsigned load_dwords = instr->dest.ssa.num_components / 2 + 1;
|
||
LLVMTypeRef vec_type = LLVMVectorType(ctx->ac.i16, 2 * load_dwords);
|
||
ptr = ac_cast_ptr(&ctx->ac, ptr, vec_type);
|
||
LLVMValueRef res = LLVMBuildLoad2(ctx->ac.builder, vec_type, ptr, "");
|
||
res = LLVMBuildBitCast(ctx->ac.builder, res, vec_type, "");
|
||
LLVMValueRef cond = LLVMBuildLShr(ctx->ac.builder, addr, ctx->ac.i32_1, "");
|
||
cond = LLVMBuildTrunc(ctx->ac.builder, cond, ctx->ac.i1, "");
|
||
LLVMValueRef mask[] = {
|
||
LLVMConstInt(ctx->ac.i32, 0, false), LLVMConstInt(ctx->ac.i32, 1, false),
|
||
LLVMConstInt(ctx->ac.i32, 2, false), LLVMConstInt(ctx->ac.i32, 3, false),
|
||
LLVMConstInt(ctx->ac.i32, 4, false)};
|
||
LLVMValueRef swizzle_aligned = LLVMConstVector(&mask[0], instr->dest.ssa.num_components);
|
||
LLVMValueRef swizzle_unaligned = LLVMConstVector(&mask[1], instr->dest.ssa.num_components);
|
||
LLVMValueRef shuffle_aligned =
|
||
LLVMBuildShuffleVector(ctx->ac.builder, res, res, swizzle_aligned, "");
|
||
LLVMValueRef shuffle_unaligned =
|
||
LLVMBuildShuffleVector(ctx->ac.builder, res, res, swizzle_unaligned, "");
|
||
res = LLVMBuildSelect(ctx->ac.builder, cond, shuffle_unaligned, shuffle_aligned, "");
|
||
return LLVMBuildBitCast(ctx->ac.builder, res, get_def_type(ctx, &instr->dest.ssa), "");
|
||
}
|
||
|
||
LLVMTypeRef ptr_type = get_def_type(ctx, &instr->dest.ssa);
|
||
ptr = ac_cast_ptr(&ctx->ac, ptr, ptr_type);
|
||
|
||
return LLVMBuildLoad2(ctx->ac.builder, ptr_type, ptr, "");
|
||
}
|
||
|
||
static LLVMValueRef visit_get_ssbo_size(struct ac_nir_context *ctx,
|
||
const nir_intrinsic_instr *instr)
|
||
{
|
||
bool non_uniform = nir_intrinsic_access(instr) & ACCESS_NON_UNIFORM;
|
||
LLVMValueRef rsrc = ctx->abi->load_ssbo(ctx->abi, get_src(ctx, instr->src[0]), false, non_uniform);
|
||
return get_buffer_size(ctx, rsrc, false);
|
||
}
|
||
|
||
static LLVMValueRef extract_vector_range(struct ac_llvm_context *ctx, LLVMValueRef src,
|
||
unsigned start, unsigned count)
|
||
{
|
||
LLVMValueRef mask[] = {ctx->i32_0, ctx->i32_1, LLVMConstInt(ctx->i32, 2, false),
|
||
LLVMConstInt(ctx->i32, 3, false)};
|
||
|
||
unsigned src_elements = ac_get_llvm_num_components(src);
|
||
|
||
if (count == src_elements) {
|
||
assert(start == 0);
|
||
return src;
|
||
} else if (count == 1) {
|
||
assert(start < src_elements);
|
||
return LLVMBuildExtractElement(ctx->builder, src, mask[start], "");
|
||
} else {
|
||
assert(start + count <= src_elements);
|
||
assert(count <= 4);
|
||
LLVMValueRef swizzle = LLVMConstVector(&mask[start], count);
|
||
return LLVMBuildShuffleVector(ctx->builder, src, src, swizzle, "");
|
||
}
|
||
}
|
||
|
||
static unsigned get_cache_policy(struct ac_nir_context *ctx, enum gl_access_qualifier access,
|
||
bool may_store_unaligned, bool writeonly_memory)
|
||
{
|
||
unsigned cache_policy = 0;
|
||
|
||
/* GFX6 has a TC L1 bug causing corruption of 8bit/16bit stores. All
|
||
* store opcodes not aligned to a dword are affected. The only way to
|
||
* get unaligned stores is through shader images.
|
||
*/
|
||
if (((may_store_unaligned && ctx->ac.chip_class == GFX6) ||
|
||
/* If this is write-only, don't keep data in L1 to prevent
|
||
* evicting L1 cache lines that may be needed by other
|
||
* instructions.
|
||
*/
|
||
writeonly_memory || access & (ACCESS_COHERENT | ACCESS_VOLATILE))) {
|
||
cache_policy |= ac_glc;
|
||
}
|
||
|
||
if (access & ACCESS_STREAM_CACHE_POLICY)
|
||
cache_policy |= ac_slc | ac_glc;
|
||
|
||
return cache_policy;
|
||
}
|
||
|
||
static LLVMValueRef enter_waterfall_ssbo(struct ac_nir_context *ctx, struct waterfall_context *wctx,
|
||
const nir_intrinsic_instr *instr, nir_src src)
|
||
{
|
||
return enter_waterfall(ctx, wctx, get_src(ctx, src),
|
||
nir_intrinsic_access(instr) & ACCESS_NON_UNIFORM);
|
||
}
|
||
|
||
static void visit_store_ssbo(struct ac_nir_context *ctx, nir_intrinsic_instr *instr)
|
||
{
|
||
if (ctx->ac.postponed_kill) {
|
||
LLVMValueRef cond = LLVMBuildLoad2(ctx->ac.builder, ctx->ac.i1, ctx->ac.postponed_kill, "");
|
||
ac_build_ifcc(&ctx->ac, cond, 7000);
|
||
}
|
||
|
||
LLVMValueRef src_data = get_src(ctx, instr->src[0]);
|
||
int elem_size_bytes = ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src_data)) / 8;
|
||
unsigned writemask = nir_intrinsic_write_mask(instr);
|
||
enum gl_access_qualifier access = nir_intrinsic_access(instr);
|
||
bool writeonly_memory = access & ACCESS_NON_READABLE;
|
||
unsigned cache_policy = get_cache_policy(ctx, access, false, writeonly_memory);
|
||
|
||
struct waterfall_context wctx;
|
||
LLVMValueRef rsrc_base = enter_waterfall_ssbo(ctx, &wctx, instr, instr->src[1]);
|
||
|
||
LLVMValueRef rsrc = ctx->abi->load_ssbo(ctx->abi, rsrc_base, true, false);
|
||
LLVMValueRef base_data = src_data;
|
||
base_data = ac_trim_vector(&ctx->ac, base_data, instr->num_components);
|
||
LLVMValueRef base_offset = get_src(ctx, instr->src[2]);
|
||
|
||
while (writemask) {
|
||
int start, count;
|
||
LLVMValueRef data, offset;
|
||
LLVMTypeRef data_type;
|
||
|
||
u_bit_scan_consecutive_range(&writemask, &start, &count);
|
||
|
||
if (count == 3 && elem_size_bytes != 4) {
|
||
writemask |= 1 << (start + 2);
|
||
count = 2;
|
||
}
|
||
int num_bytes = count * elem_size_bytes; /* count in bytes */
|
||
|
||
/* we can only store 4 DWords at the same time.
|
||
* can only happen for 64 Bit vectors. */
|
||
if (num_bytes > 16) {
|
||
writemask |= ((1u << (count - 2)) - 1u) << (start + 2);
|
||
count = 2;
|
||
num_bytes = 16;
|
||
}
|
||
|
||
/* check alignment of 16 Bit stores */
|
||
if (elem_size_bytes == 2 && num_bytes > 2 && (start % 2) == 1) {
|
||
writemask |= ((1u << (count - 1)) - 1u) << (start + 1);
|
||
count = 1;
|
||
num_bytes = 2;
|
||
}
|
||
|
||
/* Due to alignment issues, split stores of 8-bit/16-bit
|
||
* vectors.
|
||
*/
|
||
if (ctx->ac.chip_class == GFX6 && count > 1 && elem_size_bytes < 4) {
|
||
writemask |= ((1u << (count - 1)) - 1u) << (start + 1);
|
||
count = 1;
|
||
num_bytes = elem_size_bytes;
|
||
}
|
||
|
||
data = extract_vector_range(&ctx->ac, base_data, start, count);
|
||
|
||
offset = LLVMBuildAdd(ctx->ac.builder, base_offset,
|
||
LLVMConstInt(ctx->ac.i32, start * elem_size_bytes, false), "");
|
||
|
||
if (num_bytes == 1) {
|
||
ac_build_tbuffer_store_byte(&ctx->ac, rsrc, data, offset, ctx->ac.i32_0, cache_policy);
|
||
} else if (num_bytes == 2) {
|
||
ac_build_tbuffer_store_short(&ctx->ac, rsrc, data, offset, ctx->ac.i32_0, cache_policy);
|
||
} else {
|
||
switch (num_bytes) {
|
||
case 16: /* v4f32 */
|
||
data_type = ctx->ac.v4f32;
|
||
break;
|
||
case 12: /* v3f32 */
|
||
data_type = ctx->ac.v3f32;
|
||
break;
|
||
case 8: /* v2f32 */
|
||
data_type = ctx->ac.v2f32;
|
||
break;
|
||
case 4: /* f32 */
|
||
data_type = ctx->ac.f32;
|
||
break;
|
||
default:
|
||
unreachable("Malformed vector store.");
|
||
}
|
||
data = LLVMBuildBitCast(ctx->ac.builder, data, data_type, "");
|
||
|
||
ac_build_buffer_store_dword(&ctx->ac, rsrc, data, NULL, offset,
|
||
ctx->ac.i32_0, 0, cache_policy);
|
||
}
|
||
}
|
||
|
||
exit_waterfall(ctx, &wctx, NULL);
|
||
|
||
if (ctx->ac.postponed_kill)
|
||
ac_build_endif(&ctx->ac, 7000);
|
||
}
|
||
|
||
static LLVMValueRef emit_ssbo_comp_swap_64(struct ac_nir_context *ctx, LLVMValueRef descriptor,
|
||
LLVMValueRef offset, LLVMValueRef compare,
|
||
LLVMValueRef exchange, bool image)
|
||
{
|
||
LLVMBasicBlockRef start_block = NULL, then_block = NULL;
|
||
if (ctx->abi->robust_buffer_access || image) {
|
||
LLVMValueRef size = ac_llvm_extract_elem(&ctx->ac, descriptor, 2);
|
||
|
||
LLVMValueRef cond = LLVMBuildICmp(ctx->ac.builder, LLVMIntULT, offset, size, "");
|
||
start_block = LLVMGetInsertBlock(ctx->ac.builder);
|
||
|
||
ac_build_ifcc(&ctx->ac, cond, -1);
|
||
|
||
then_block = LLVMGetInsertBlock(ctx->ac.builder);
|
||
}
|
||
|
||
if (image)
|
||
offset = LLVMBuildMul(ctx->ac.builder, offset, LLVMConstInt(ctx->ac.i32, 8, false), "");
|
||
|
||
LLVMValueRef ptr_parts[2] = {
|
||
ac_llvm_extract_elem(&ctx->ac, descriptor, 0),
|
||
LLVMBuildAnd(ctx->ac.builder, ac_llvm_extract_elem(&ctx->ac, descriptor, 1),
|
||
LLVMConstInt(ctx->ac.i32, 65535, 0), "")};
|
||
|
||
ptr_parts[1] = LLVMBuildTrunc(ctx->ac.builder, ptr_parts[1], ctx->ac.i16, "");
|
||
ptr_parts[1] = LLVMBuildSExt(ctx->ac.builder, ptr_parts[1], ctx->ac.i32, "");
|
||
|
||
offset = LLVMBuildZExt(ctx->ac.builder, offset, ctx->ac.i64, "");
|
||
|
||
LLVMValueRef ptr = ac_build_gather_values(&ctx->ac, ptr_parts, 2);
|
||
ptr = LLVMBuildBitCast(ctx->ac.builder, ptr, ctx->ac.i64, "");
|
||
ptr = LLVMBuildAdd(ctx->ac.builder, ptr, offset, "");
|
||
ptr = LLVMBuildIntToPtr(ctx->ac.builder, ptr, LLVMPointerType(ctx->ac.i64, AC_ADDR_SPACE_GLOBAL),
|
||
"");
|
||
|
||
LLVMValueRef result =
|
||
ac_build_atomic_cmp_xchg(&ctx->ac, ptr, compare, exchange, "singlethread-one-as");
|
||
result = LLVMBuildExtractValue(ctx->ac.builder, result, 0, "");
|
||
|
||
if (ctx->abi->robust_buffer_access || image) {
|
||
ac_build_endif(&ctx->ac, -1);
|
||
|
||
LLVMBasicBlockRef incoming_blocks[2] = {
|
||
start_block,
|
||
then_block,
|
||
};
|
||
|
||
LLVMValueRef incoming_values[2] = {
|
||
LLVMConstInt(ctx->ac.i64, 0, 0),
|
||
result,
|
||
};
|
||
LLVMValueRef ret = LLVMBuildPhi(ctx->ac.builder, ctx->ac.i64, "");
|
||
LLVMAddIncoming(ret, incoming_values, incoming_blocks, 2);
|
||
return ret;
|
||
} else {
|
||
return result;
|
||
}
|
||
}
|
||
|
||
static LLVMValueRef visit_atomic_ssbo(struct ac_nir_context *ctx, nir_intrinsic_instr *instr)
|
||
{
|
||
if (ctx->ac.postponed_kill) {
|
||
LLVMValueRef cond = LLVMBuildLoad2(ctx->ac.builder, ctx->ac.i1, ctx->ac.postponed_kill, "");
|
||
ac_build_ifcc(&ctx->ac, cond, 7001);
|
||
}
|
||
|
||
LLVMTypeRef return_type = LLVMTypeOf(get_src(ctx, instr->src[2]));
|
||
const char *op;
|
||
char name[64], type[8];
|
||
LLVMValueRef params[6], descriptor;
|
||
LLVMValueRef result;
|
||
int arg_count = 0;
|
||
|
||
struct waterfall_context wctx;
|
||
LLVMValueRef rsrc_base = enter_waterfall_ssbo(ctx, &wctx, instr, instr->src[0]);
|
||
|
||
switch (instr->intrinsic) {
|
||
case nir_intrinsic_ssbo_atomic_add:
|
||
op = "add";
|
||
break;
|
||
case nir_intrinsic_ssbo_atomic_imin:
|
||
op = "smin";
|
||
break;
|
||
case nir_intrinsic_ssbo_atomic_umin:
|
||
op = "umin";
|
||
break;
|
||
case nir_intrinsic_ssbo_atomic_imax:
|
||
op = "smax";
|
||
break;
|
||
case nir_intrinsic_ssbo_atomic_umax:
|
||
op = "umax";
|
||
break;
|
||
case nir_intrinsic_ssbo_atomic_and:
|
||
op = "and";
|
||
break;
|
||
case nir_intrinsic_ssbo_atomic_or:
|
||
op = "or";
|
||
break;
|
||
case nir_intrinsic_ssbo_atomic_xor:
|
||
op = "xor";
|
||
break;
|
||
case nir_intrinsic_ssbo_atomic_exchange:
|
||
op = "swap";
|
||
break;
|
||
case nir_intrinsic_ssbo_atomic_comp_swap:
|
||
op = "cmpswap";
|
||
break;
|
||
case nir_intrinsic_ssbo_atomic_fmin:
|
||
op = "fmin";
|
||
break;
|
||
case nir_intrinsic_ssbo_atomic_fmax:
|
||
op = "fmax";
|
||
break;
|
||
default:
|
||
abort();
|
||
}
|
||
|
||
descriptor = ctx->abi->load_ssbo(ctx->abi, rsrc_base, true, false);
|
||
|
||
if (instr->intrinsic == nir_intrinsic_ssbo_atomic_comp_swap && return_type == ctx->ac.i64) {
|
||
result = emit_ssbo_comp_swap_64(ctx, descriptor, get_src(ctx, instr->src[1]),
|
||
get_src(ctx, instr->src[2]), get_src(ctx, instr->src[3]), false);
|
||
} else {
|
||
LLVMValueRef data = ac_llvm_extract_elem(&ctx->ac, get_src(ctx, instr->src[2]), 0);
|
||
|
||
if (instr->intrinsic == nir_intrinsic_ssbo_atomic_comp_swap) {
|
||
params[arg_count++] = ac_llvm_extract_elem(&ctx->ac, get_src(ctx, instr->src[3]), 0);
|
||
}
|
||
if (instr->intrinsic == nir_intrinsic_ssbo_atomic_fmin ||
|
||
instr->intrinsic == nir_intrinsic_ssbo_atomic_fmax) {
|
||
data = ac_to_float(&ctx->ac, data);
|
||
return_type = LLVMTypeOf(data);
|
||
}
|
||
params[arg_count++] = data;
|
||
params[arg_count++] = descriptor;
|
||
params[arg_count++] = get_src(ctx, instr->src[1]); /* voffset */
|
||
params[arg_count++] = ctx->ac.i32_0; /* soffset */
|
||
params[arg_count++] = ctx->ac.i32_0; /* slc */
|
||
|
||
ac_build_type_name_for_intr(return_type, type, sizeof(type));
|
||
snprintf(name, sizeof(name), "llvm.amdgcn.raw.buffer.atomic.%s.%s", op, type);
|
||
|
||
result = ac_build_intrinsic(&ctx->ac, name, return_type, params, arg_count, 0);
|
||
|
||
if (instr->intrinsic == nir_intrinsic_ssbo_atomic_fmin ||
|
||
instr->intrinsic == nir_intrinsic_ssbo_atomic_fmax) {
|
||
result = ac_to_integer(&ctx->ac, result);
|
||
}
|
||
}
|
||
|
||
result = exit_waterfall(ctx, &wctx, result);
|
||
if (ctx->ac.postponed_kill)
|
||
ac_build_endif(&ctx->ac, 7001);
|
||
return result;
|
||
}
|
||
|
||
static LLVMValueRef visit_load_buffer(struct ac_nir_context *ctx, nir_intrinsic_instr *instr)
|
||
{
|
||
struct waterfall_context wctx;
|
||
LLVMValueRef rsrc_base = enter_waterfall_ssbo(ctx, &wctx, instr, instr->src[0]);
|
||
|
||
int elem_size_bytes = instr->dest.ssa.bit_size / 8;
|
||
int num_components = instr->num_components;
|
||
enum gl_access_qualifier access = nir_intrinsic_access(instr);
|
||
unsigned cache_policy = get_cache_policy(ctx, access, false, false);
|
||
|
||
LLVMValueRef offset = get_src(ctx, instr->src[1]);
|
||
LLVMValueRef rsrc = ctx->abi->load_ssbo(ctx->abi, rsrc_base, false, false);
|
||
LLVMValueRef vindex = ctx->ac.i32_0;
|
||
|
||
LLVMTypeRef def_type = get_def_type(ctx, &instr->dest.ssa);
|
||
LLVMTypeRef def_elem_type = num_components > 1 ? LLVMGetElementType(def_type) : def_type;
|
||
|
||
LLVMValueRef results[4];
|
||
for (int i = 0; i < num_components;) {
|
||
int num_elems = num_components - i;
|
||
if (elem_size_bytes < 4 && nir_intrinsic_align(instr) % 4 != 0)
|
||
num_elems = 1;
|
||
if (num_elems * elem_size_bytes > 16)
|
||
num_elems = 16 / elem_size_bytes;
|
||
int load_bytes = num_elems * elem_size_bytes;
|
||
|
||
LLVMValueRef immoffset = LLVMConstInt(ctx->ac.i32, i * elem_size_bytes, false);
|
||
|
||
LLVMValueRef ret;
|
||
|
||
if (load_bytes == 1) {
|
||
ret = ac_build_tbuffer_load_byte(&ctx->ac, rsrc, offset, ctx->ac.i32_0, immoffset,
|
||
cache_policy);
|
||
} else if (load_bytes == 2) {
|
||
ret = ac_build_tbuffer_load_short(&ctx->ac, rsrc, offset, ctx->ac.i32_0, immoffset,
|
||
cache_policy);
|
||
} else {
|
||
int num_channels = util_next_power_of_two(load_bytes) / 4;
|
||
bool can_speculate = access & ACCESS_CAN_REORDER;
|
||
|
||
ret = ac_build_buffer_load(&ctx->ac, rsrc, num_channels, vindex, offset, immoffset, 0,
|
||
ctx->ac.f32, cache_policy, can_speculate, false);
|
||
}
|
||
|
||
LLVMTypeRef byte_vec = LLVMVectorType(ctx->ac.i8, ac_get_type_size(LLVMTypeOf(ret)));
|
||
ret = LLVMBuildBitCast(ctx->ac.builder, ret, byte_vec, "");
|
||
ret = ac_trim_vector(&ctx->ac, ret, load_bytes);
|
||
|
||
LLVMTypeRef ret_type = LLVMVectorType(def_elem_type, num_elems);
|
||
ret = LLVMBuildBitCast(ctx->ac.builder, ret, ret_type, "");
|
||
|
||
for (unsigned j = 0; j < num_elems; j++) {
|
||
results[i + j] =
|
||
LLVMBuildExtractElement(ctx->ac.builder, ret, LLVMConstInt(ctx->ac.i32, j, false), "");
|
||
}
|
||
i += num_elems;
|
||
}
|
||
|
||
LLVMValueRef ret = ac_build_gather_values(&ctx->ac, results, num_components);
|
||
return exit_waterfall(ctx, &wctx, ret);
|
||
}
|
||
|
||
static LLVMValueRef enter_waterfall_ubo(struct ac_nir_context *ctx, struct waterfall_context *wctx,
|
||
const nir_intrinsic_instr *instr)
|
||
{
|
||
return enter_waterfall(ctx, wctx, get_src(ctx, instr->src[0]),
|
||
nir_intrinsic_access(instr) & ACCESS_NON_UNIFORM);
|
||
}
|
||
|
||
static LLVMValueRef visit_load_global(struct ac_nir_context *ctx,
|
||
nir_intrinsic_instr *instr)
|
||
{
|
||
LLVMValueRef addr = get_src(ctx, instr->src[0]);
|
||
LLVMTypeRef result_type = get_def_type(ctx, &instr->dest.ssa);
|
||
LLVMValueRef val;
|
||
|
||
LLVMTypeRef ptr_type = LLVMPointerType(result_type, AC_ADDR_SPACE_GLOBAL);
|
||
|
||
addr = LLVMBuildIntToPtr(ctx->ac.builder, addr, ptr_type, "");
|
||
|
||
val = LLVMBuildLoad2(ctx->ac.builder, result_type, addr, "");
|
||
|
||
if (nir_intrinsic_access(instr) & (ACCESS_COHERENT | ACCESS_VOLATILE)) {
|
||
LLVMSetOrdering(val, LLVMAtomicOrderingMonotonic);
|
||
LLVMSetAlignment(val, ac_get_type_size(result_type));
|
||
}
|
||
|
||
return val;
|
||
}
|
||
|
||
static void visit_store_global(struct ac_nir_context *ctx,
|
||
nir_intrinsic_instr *instr)
|
||
{
|
||
if (ctx->ac.postponed_kill) {
|
||
LLVMValueRef cond = LLVMBuildLoad2(ctx->ac.builder, ctx->ac.i1, ctx->ac.postponed_kill, "");
|
||
ac_build_ifcc(&ctx->ac, cond, 7002);
|
||
}
|
||
|
||
LLVMValueRef data = get_src(ctx, instr->src[0]);
|
||
LLVMValueRef addr = get_src(ctx, instr->src[1]);
|
||
LLVMTypeRef type = LLVMTypeOf(data);
|
||
LLVMValueRef val;
|
||
|
||
LLVMTypeRef ptr_type = LLVMPointerType(type, AC_ADDR_SPACE_GLOBAL);
|
||
|
||
addr = LLVMBuildIntToPtr(ctx->ac.builder, addr, ptr_type, "");
|
||
|
||
val = LLVMBuildStore(ctx->ac.builder, data, addr);
|
||
|
||
if (nir_intrinsic_access(instr) & (ACCESS_COHERENT | ACCESS_VOLATILE)) {
|
||
LLVMSetOrdering(val, LLVMAtomicOrderingMonotonic);
|
||
LLVMSetAlignment(val, ac_get_type_size(type));
|
||
}
|
||
|
||
if (ctx->ac.postponed_kill)
|
||
ac_build_endif(&ctx->ac, 7002);
|
||
}
|
||
|
||
static LLVMValueRef visit_global_atomic(struct ac_nir_context *ctx,
|
||
nir_intrinsic_instr *instr)
|
||
{
|
||
if (ctx->ac.postponed_kill) {
|
||
LLVMValueRef cond = LLVMBuildLoad2(ctx->ac.builder, ctx->ac.i1, ctx->ac.postponed_kill, "");
|
||
ac_build_ifcc(&ctx->ac, cond, 7002);
|
||
}
|
||
|
||
LLVMValueRef addr = get_src(ctx, instr->src[0]);
|
||
LLVMValueRef data = get_src(ctx, instr->src[1]);
|
||
LLVMAtomicRMWBinOp op;
|
||
LLVMValueRef result;
|
||
|
||
/* use "singlethread" sync scope to implement relaxed ordering */
|
||
const char *sync_scope = "singlethread-one-as";
|
||
|
||
if (instr->intrinsic == nir_intrinsic_global_atomic_fmin ||
|
||
instr->intrinsic == nir_intrinsic_global_atomic_fmax) {
|
||
data = ac_to_float(&ctx->ac, data);
|
||
}
|
||
|
||
LLVMTypeRef data_type = LLVMTypeOf(data);
|
||
LLVMTypeRef ptr_type = LLVMPointerType(data_type, AC_ADDR_SPACE_GLOBAL);
|
||
|
||
addr = LLVMBuildIntToPtr(ctx->ac.builder, addr, ptr_type, "");
|
||
|
||
if (instr->intrinsic == nir_intrinsic_global_atomic_comp_swap) {
|
||
LLVMValueRef data1 = get_src(ctx, instr->src[2]);
|
||
result = ac_build_atomic_cmp_xchg(&ctx->ac, addr, data, data1, sync_scope);
|
||
result = LLVMBuildExtractValue(ctx->ac.builder, result, 0, "");
|
||
} else if (instr->intrinsic == nir_intrinsic_global_atomic_fmin ||
|
||
instr->intrinsic == nir_intrinsic_global_atomic_fmax) {
|
||
const char *op = instr->intrinsic == nir_intrinsic_global_atomic_fmin ? "fmin" : "fmax";
|
||
char name[64], type[8];
|
||
LLVMValueRef params[2];
|
||
int arg_count = 0;
|
||
|
||
params[arg_count++] = addr;
|
||
params[arg_count++] = data;
|
||
|
||
ac_build_type_name_for_intr(data_type, type, sizeof(type));
|
||
snprintf(name, sizeof(name), "llvm.amdgcn.global.atomic.%s.%s.p1%s.%s", op, type, type, type);
|
||
|
||
result = ac_build_intrinsic(&ctx->ac, name, data_type, params, arg_count, 0);
|
||
result = ac_to_integer(&ctx->ac, result);
|
||
} else {
|
||
switch (instr->intrinsic) {
|
||
case nir_intrinsic_global_atomic_add:
|
||
op = LLVMAtomicRMWBinOpAdd;
|
||
break;
|
||
case nir_intrinsic_global_atomic_umin:
|
||
op = LLVMAtomicRMWBinOpUMin;
|
||
break;
|
||
case nir_intrinsic_global_atomic_umax:
|
||
op = LLVMAtomicRMWBinOpUMax;
|
||
break;
|
||
case nir_intrinsic_global_atomic_imin:
|
||
op = LLVMAtomicRMWBinOpMin;
|
||
break;
|
||
case nir_intrinsic_global_atomic_imax:
|
||
op = LLVMAtomicRMWBinOpMax;
|
||
break;
|
||
case nir_intrinsic_global_atomic_and:
|
||
op = LLVMAtomicRMWBinOpAnd;
|
||
break;
|
||
case nir_intrinsic_global_atomic_or:
|
||
op = LLVMAtomicRMWBinOpOr;
|
||
break;
|
||
case nir_intrinsic_global_atomic_xor:
|
||
op = LLVMAtomicRMWBinOpXor;
|
||
break;
|
||
case nir_intrinsic_global_atomic_exchange:
|
||
op = LLVMAtomicRMWBinOpXchg;
|
||
break;
|
||
default:
|
||
unreachable("Invalid global atomic operation");
|
||
}
|
||
|
||
result = ac_build_atomic_rmw(&ctx->ac, op, addr, ac_to_integer(&ctx->ac, data), sync_scope);
|
||
}
|
||
|
||
if (ctx->ac.postponed_kill)
|
||
ac_build_endif(&ctx->ac, 7002);
|
||
|
||
return result;
|
||
}
|
||
|
||
static LLVMValueRef visit_load_ubo_buffer(struct ac_nir_context *ctx, nir_intrinsic_instr *instr)
|
||
{
|
||
struct waterfall_context wctx;
|
||
LLVMValueRef rsrc_base = enter_waterfall_ubo(ctx, &wctx, instr);
|
||
|
||
LLVMValueRef ret;
|
||
LLVMValueRef rsrc = rsrc_base;
|
||
LLVMValueRef offset = get_src(ctx, instr->src[1]);
|
||
int num_components = instr->num_components;
|
||
|
||
if (ctx->abi->load_ubo)
|
||
rsrc = ctx->abi->load_ubo(ctx->abi, rsrc);
|
||
|
||
/* Convert to a scalar 32-bit load. */
|
||
if (instr->dest.ssa.bit_size == 64)
|
||
num_components *= 2;
|
||
else if (instr->dest.ssa.bit_size == 16)
|
||
num_components = DIV_ROUND_UP(num_components, 2);
|
||
else if (instr->dest.ssa.bit_size == 8)
|
||
num_components = DIV_ROUND_UP(num_components, 4);
|
||
|
||
ret =
|
||
ac_build_buffer_load(&ctx->ac, rsrc, num_components, NULL, offset, NULL, 0,
|
||
ctx->ac.f32, 0, true, true);
|
||
|
||
/* Convert to the original type. */
|
||
if (instr->dest.ssa.bit_size == 64) {
|
||
ret = LLVMBuildBitCast(ctx->ac.builder, ret,
|
||
LLVMVectorType(ctx->ac.i64, num_components / 2), "");
|
||
} else if (instr->dest.ssa.bit_size == 16) {
|
||
ret = LLVMBuildBitCast(ctx->ac.builder, ret,
|
||
LLVMVectorType(ctx->ac.i16, num_components * 2), "");
|
||
} else if (instr->dest.ssa.bit_size == 8) {
|
||
ret = LLVMBuildBitCast(ctx->ac.builder, ret,
|
||
LLVMVectorType(ctx->ac.i8, num_components * 4), "");
|
||
}
|
||
|
||
ret = ac_trim_vector(&ctx->ac, ret, instr->num_components);
|
||
ret = LLVMBuildBitCast(ctx->ac.builder, ret, get_def_type(ctx, &instr->dest.ssa), "");
|
||
|
||
return exit_waterfall(ctx, &wctx, ret);
|
||
}
|
||
|
||
static unsigned type_scalar_size_bytes(const struct glsl_type *type)
|
||
{
|
||
assert(glsl_type_is_vector_or_scalar(type) || glsl_type_is_matrix(type));
|
||
return glsl_type_is_boolean(type) ? 4 : glsl_get_bit_size(type) / 8;
|
||
}
|
||
|
||
static void visit_store_output(struct ac_nir_context *ctx, nir_intrinsic_instr *instr)
|
||
{
|
||
if (ctx->ac.postponed_kill) {
|
||
LLVMValueRef cond = LLVMBuildLoad2(ctx->ac.builder, ctx->ac.i1, ctx->ac.postponed_kill, "");
|
||
ac_build_ifcc(&ctx->ac, cond, 7002);
|
||
}
|
||
|
||
unsigned base = nir_intrinsic_base(instr);
|
||
unsigned writemask = nir_intrinsic_write_mask(instr);
|
||
unsigned component = nir_intrinsic_component(instr);
|
||
LLVMValueRef src = ac_to_float(&ctx->ac, get_src(ctx, instr->src[0]));
|
||
nir_src offset = *nir_get_io_offset_src(instr);
|
||
LLVMValueRef indir_index = NULL;
|
||
|
||
if (nir_src_is_const(offset))
|
||
assert(nir_src_as_uint(offset) == 0);
|
||
else
|
||
indir_index = get_src(ctx, offset);
|
||
|
||
switch (ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src))) {
|
||
case 16:
|
||
case 32:
|
||
break;
|
||
case 64:
|
||
unreachable("64-bit IO should have been lowered to 32 bits");
|
||
return;
|
||
default:
|
||
unreachable("unhandled store_output bit size");
|
||
return;
|
||
}
|
||
|
||
writemask <<= component;
|
||
|
||
if (ctx->stage == MESA_SHADER_TESS_CTRL) {
|
||
nir_src *vertex_index_src = nir_get_io_arrayed_index_src(instr);
|
||
LLVMValueRef vertex_index = vertex_index_src ? get_src(ctx, *vertex_index_src) : NULL;
|
||
unsigned location = nir_intrinsic_io_semantics(instr).location;
|
||
|
||
ctx->abi->store_tcs_outputs(ctx->abi, vertex_index, indir_index, src,
|
||
writemask, component, location, base);
|
||
return;
|
||
}
|
||
|
||
/* No indirect indexing is allowed after this point. */
|
||
assert(!indir_index);
|
||
|
||
for (unsigned chan = 0; chan < 8; chan++) {
|
||
if (!(writemask & (1 << chan)))
|
||
continue;
|
||
|
||
LLVMValueRef value = ac_llvm_extract_elem(&ctx->ac, src, chan - component);
|
||
LLVMValueRef output_addr = ctx->abi->outputs[base * 4 + chan];
|
||
|
||
if (LLVMGetElementType(LLVMTypeOf(output_addr)) == ctx->ac.f32 &&
|
||
LLVMTypeOf(value) == ctx->ac.f16) {
|
||
LLVMValueRef output, index;
|
||
|
||
/* Insert the 16-bit value into the low or high bits of the 32-bit output
|
||
* using read-modify-write.
|
||
*/
|
||
index = LLVMConstInt(ctx->ac.i32, nir_intrinsic_io_semantics(instr).high_16bits, 0);
|
||
output = LLVMBuildLoad2(ctx->ac.builder, ctx->ac.v2f16, output_addr, "");
|
||
output = LLVMBuildInsertElement(ctx->ac.builder, output, value, index, "");
|
||
value = LLVMBuildBitCast(ctx->ac.builder, output, ctx->ac.f32, "");
|
||
}
|
||
LLVMBuildStore(ctx->ac.builder, value, output_addr);
|
||
}
|
||
|
||
if (ctx->ac.postponed_kill)
|
||
ac_build_endif(&ctx->ac, 7002);
|
||
}
|
||
|
||
static int image_type_to_components_count(enum glsl_sampler_dim dim, bool array)
|
||
{
|
||
switch (dim) {
|
||
case GLSL_SAMPLER_DIM_BUF:
|
||
return 1;
|
||
case GLSL_SAMPLER_DIM_1D:
|
||
return array ? 2 : 1;
|
||
case GLSL_SAMPLER_DIM_2D:
|
||
return array ? 3 : 2;
|
||
case GLSL_SAMPLER_DIM_MS:
|
||
return array ? 4 : 3;
|
||
case GLSL_SAMPLER_DIM_3D:
|
||
case GLSL_SAMPLER_DIM_CUBE:
|
||
return 3;
|
||
case GLSL_SAMPLER_DIM_RECT:
|
||
case GLSL_SAMPLER_DIM_SUBPASS:
|
||
return 2;
|
||
case GLSL_SAMPLER_DIM_SUBPASS_MS:
|
||
return 3;
|
||
default:
|
||
break;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
static LLVMValueRef adjust_sample_index_using_fmask(struct ac_llvm_context *ctx,
|
||
LLVMValueRef coord_x, LLVMValueRef coord_y,
|
||
LLVMValueRef coord_z, LLVMValueRef sample_index,
|
||
LLVMValueRef fmask_desc_ptr)
|
||
{
|
||
if (!fmask_desc_ptr)
|
||
return sample_index;
|
||
|
||
unsigned sample_chan = coord_z ? 3 : 2;
|
||
LLVMValueRef addr[4] = {coord_x, coord_y, coord_z};
|
||
addr[sample_chan] = sample_index;
|
||
|
||
ac_apply_fmask_to_sample(ctx, fmask_desc_ptr, addr, coord_z != NULL);
|
||
return addr[sample_chan];
|
||
}
|
||
|
||
static nir_deref_instr *get_image_deref(const nir_intrinsic_instr *instr)
|
||
{
|
||
assert(instr->src[0].is_ssa);
|
||
return nir_instr_as_deref(instr->src[0].ssa->parent_instr);
|
||
}
|
||
|
||
static LLVMValueRef get_image_descriptor(struct ac_nir_context *ctx,
|
||
const nir_intrinsic_instr *instr,
|
||
LLVMValueRef dynamic_index,
|
||
enum ac_descriptor_type desc_type, bool write)
|
||
{
|
||
nir_deref_instr *deref_instr = instr->src[0].ssa->parent_instr->type == nir_instr_type_deref
|
||
? nir_instr_as_deref(instr->src[0].ssa->parent_instr)
|
||
: NULL;
|
||
|
||
return get_sampler_desc(ctx, deref_instr, desc_type, &instr->instr, dynamic_index, true, write);
|
||
}
|
||
|
||
static void get_image_coords(struct ac_nir_context *ctx, const nir_intrinsic_instr *instr,
|
||
LLVMValueRef dynamic_desc_index, struct ac_image_args *args,
|
||
enum glsl_sampler_dim dim, bool is_array)
|
||
{
|
||
LLVMValueRef src0 = get_src(ctx, instr->src[1]);
|
||
LLVMValueRef masks[] = {
|
||
LLVMConstInt(ctx->ac.i32, 0, false),
|
||
LLVMConstInt(ctx->ac.i32, 1, false),
|
||
LLVMConstInt(ctx->ac.i32, 2, false),
|
||
LLVMConstInt(ctx->ac.i32, 3, false),
|
||
};
|
||
LLVMValueRef sample_index = ac_llvm_extract_elem(&ctx->ac, get_src(ctx, instr->src[2]), 0);
|
||
|
||
int count;
|
||
ASSERTED bool add_frag_pos =
|
||
(dim == GLSL_SAMPLER_DIM_SUBPASS || dim == GLSL_SAMPLER_DIM_SUBPASS_MS);
|
||
bool is_ms = (dim == GLSL_SAMPLER_DIM_MS || dim == GLSL_SAMPLER_DIM_SUBPASS_MS);
|
||
bool gfx9_1d = ctx->ac.chip_class == GFX9 && dim == GLSL_SAMPLER_DIM_1D;
|
||
assert(!add_frag_pos && "Input attachments should be lowered by this point.");
|
||
count = image_type_to_components_count(dim, is_array);
|
||
|
||
if (is_ms && (instr->intrinsic == nir_intrinsic_image_deref_load ||
|
||
instr->intrinsic == nir_intrinsic_bindless_image_load ||
|
||
instr->intrinsic == nir_intrinsic_image_deref_sparse_load ||
|
||
instr->intrinsic == nir_intrinsic_bindless_image_sparse_load)) {
|
||
LLVMValueRef fmask_load_address[3];
|
||
|
||
fmask_load_address[0] = LLVMBuildExtractElement(ctx->ac.builder, src0, masks[0], "");
|
||
fmask_load_address[1] = LLVMBuildExtractElement(ctx->ac.builder, src0, masks[1], "");
|
||
if (is_array)
|
||
fmask_load_address[2] = LLVMBuildExtractElement(ctx->ac.builder, src0, masks[2], "");
|
||
else
|
||
fmask_load_address[2] = NULL;
|
||
|
||
sample_index = adjust_sample_index_using_fmask(
|
||
&ctx->ac, fmask_load_address[0], fmask_load_address[1], fmask_load_address[2],
|
||
sample_index, get_image_descriptor(ctx, instr, dynamic_desc_index, AC_DESC_FMASK, false));
|
||
}
|
||
if (count == 1 && !gfx9_1d) {
|
||
if (instr->src[1].ssa->num_components)
|
||
args->coords[0] = LLVMBuildExtractElement(ctx->ac.builder, src0, masks[0], "");
|
||
else
|
||
args->coords[0] = src0;
|
||
} else {
|
||
int chan;
|
||
if (is_ms)
|
||
count--;
|
||
for (chan = 0; chan < count; ++chan) {
|
||
args->coords[chan] = ac_llvm_extract_elem(&ctx->ac, src0, chan);
|
||
}
|
||
|
||
if (gfx9_1d) {
|
||
if (is_array) {
|
||
args->coords[2] = args->coords[1];
|
||
args->coords[1] = ctx->ac.i32_0;
|
||
} else
|
||
args->coords[1] = ctx->ac.i32_0;
|
||
count++;
|
||
}
|
||
if (ctx->ac.chip_class == GFX9 && dim == GLSL_SAMPLER_DIM_2D && !is_array) {
|
||
/* The hw can't bind a slice of a 3D image as a 2D
|
||
* image, because it ignores BASE_ARRAY if the target
|
||
* is 3D. The workaround is to read BASE_ARRAY and set
|
||
* it as the 3rd address operand for all 2D images.
|
||
*/
|
||
LLVMValueRef first_layer, const5, mask;
|
||
|
||
const5 = LLVMConstInt(ctx->ac.i32, 5, 0);
|
||
mask = LLVMConstInt(ctx->ac.i32, S_008F24_BASE_ARRAY(~0), 0);
|
||
first_layer = LLVMBuildExtractElement(ctx->ac.builder, args->resource, const5, "");
|
||
first_layer = LLVMBuildAnd(ctx->ac.builder, first_layer, mask, "");
|
||
|
||
args->coords[count] = first_layer;
|
||
count++;
|
||
}
|
||
|
||
if (is_ms) {
|
||
args->coords[count] = sample_index;
|
||
count++;
|
||
}
|
||
}
|
||
}
|
||
|
||
static LLVMValueRef enter_waterfall_image(struct ac_nir_context *ctx,
|
||
struct waterfall_context *wctx,
|
||
const nir_intrinsic_instr *instr)
|
||
{
|
||
nir_deref_instr *deref_instr = NULL;
|
||
|
||
if (instr->src[0].ssa->parent_instr->type == nir_instr_type_deref)
|
||
deref_instr = nir_instr_as_deref(instr->src[0].ssa->parent_instr);
|
||
|
||
LLVMValueRef value = get_sampler_desc_index(ctx, deref_instr, &instr->instr, true);
|
||
return enter_waterfall(ctx, wctx, value, nir_intrinsic_access(instr) & ACCESS_NON_UNIFORM);
|
||
}
|
||
|
||
static LLVMValueRef visit_image_load(struct ac_nir_context *ctx, const nir_intrinsic_instr *instr,
|
||
bool bindless)
|
||
{
|
||
LLVMValueRef res;
|
||
|
||
enum glsl_sampler_dim dim;
|
||
enum gl_access_qualifier access = nir_intrinsic_access(instr);
|
||
bool is_array;
|
||
if (bindless) {
|
||
dim = nir_intrinsic_image_dim(instr);
|
||
is_array = nir_intrinsic_image_array(instr);
|
||
} else {
|
||
const nir_deref_instr *image_deref = get_image_deref(instr);
|
||
const struct glsl_type *type = image_deref->type;
|
||
const nir_variable *var = nir_deref_instr_get_variable(image_deref);
|
||
dim = glsl_get_sampler_dim(type);
|
||
access |= var->data.access;
|
||
is_array = glsl_sampler_type_is_array(type);
|
||
}
|
||
|
||
struct waterfall_context wctx;
|
||
LLVMValueRef dynamic_index = enter_waterfall_image(ctx, &wctx, instr);
|
||
|
||
struct ac_image_args args = {0};
|
||
|
||
args.cache_policy = get_cache_policy(ctx, access, false, false);
|
||
args.tfe = instr->intrinsic == nir_intrinsic_image_deref_sparse_load ||
|
||
instr->intrinsic == nir_intrinsic_bindless_image_sparse_load;
|
||
|
||
if (dim == GLSL_SAMPLER_DIM_BUF) {
|
||
unsigned num_channels = util_last_bit(nir_ssa_def_components_read(&instr->dest.ssa));
|
||
if (instr->dest.ssa.bit_size == 64)
|
||
num_channels = num_channels < 4 ? 2 : 4;
|
||
LLVMValueRef rsrc, vindex;
|
||
|
||
rsrc = get_image_descriptor(ctx, instr, dynamic_index, AC_DESC_BUFFER, false);
|
||
vindex =
|
||
LLVMBuildExtractElement(ctx->ac.builder, get_src(ctx, instr->src[1]), ctx->ac.i32_0, "");
|
||
|
||
assert(instr->dest.is_ssa);
|
||
bool can_speculate = access & ACCESS_CAN_REORDER;
|
||
res = ac_build_buffer_load_format(&ctx->ac, rsrc, vindex, ctx->ac.i32_0, num_channels,
|
||
args.cache_policy, can_speculate,
|
||
instr->dest.ssa.bit_size == 16,
|
||
args.tfe);
|
||
res = ac_build_expand(&ctx->ac, res, num_channels, args.tfe ? 5 : 4);
|
||
|
||
res = ac_trim_vector(&ctx->ac, res, instr->dest.ssa.num_components);
|
||
res = ac_to_integer(&ctx->ac, res);
|
||
} else {
|
||
bool level_zero = nir_src_is_const(instr->src[3]) && nir_src_as_uint(instr->src[3]) == 0;
|
||
|
||
args.opcode = level_zero ? ac_image_load : ac_image_load_mip;
|
||
args.resource = get_image_descriptor(ctx, instr, dynamic_index, AC_DESC_IMAGE, false);
|
||
get_image_coords(ctx, instr, dynamic_index, &args, dim, is_array);
|
||
args.dim = ac_get_image_dim(ctx->ac.chip_class, dim, is_array);
|
||
if (!level_zero)
|
||
args.lod = get_src(ctx, instr->src[3]);
|
||
args.dmask = 15;
|
||
args.attributes = AC_FUNC_ATTR_READONLY;
|
||
|
||
assert(instr->dest.is_ssa);
|
||
args.d16 = instr->dest.ssa.bit_size == 16;
|
||
|
||
res = ac_build_image_opcode(&ctx->ac, &args);
|
||
}
|
||
|
||
if (instr->dest.ssa.bit_size == 64) {
|
||
LLVMValueRef code = NULL;
|
||
if (args.tfe) {
|
||
code = ac_llvm_extract_elem(&ctx->ac, res, 4);
|
||
res = ac_trim_vector(&ctx->ac, res, 4);
|
||
}
|
||
|
||
res = LLVMBuildBitCast(ctx->ac.builder, res, LLVMVectorType(ctx->ac.i64, 2), "");
|
||
LLVMValueRef x = LLVMBuildExtractElement(ctx->ac.builder, res, ctx->ac.i32_0, "");
|
||
LLVMValueRef w = LLVMBuildExtractElement(ctx->ac.builder, res, ctx->ac.i32_1, "");
|
||
|
||
if (code)
|
||
code = LLVMBuildZExt(ctx->ac.builder, code, ctx->ac.i64, "");
|
||
LLVMValueRef values[5] = {x, ctx->ac.i64_0, ctx->ac.i64_0, w, code};
|
||
res = ac_build_gather_values(&ctx->ac, values, 4 + args.tfe);
|
||
}
|
||
|
||
return exit_waterfall(ctx, &wctx, res);
|
||
}
|
||
|
||
static void visit_image_store(struct ac_nir_context *ctx, const nir_intrinsic_instr *instr,
|
||
bool bindless)
|
||
{
|
||
if (ctx->ac.postponed_kill) {
|
||
LLVMValueRef cond = LLVMBuildLoad2(ctx->ac.builder, ctx->ac.i1, ctx->ac.postponed_kill, "");
|
||
ac_build_ifcc(&ctx->ac, cond, 7003);
|
||
}
|
||
|
||
enum glsl_sampler_dim dim;
|
||
enum gl_access_qualifier access = nir_intrinsic_access(instr);
|
||
bool is_array;
|
||
|
||
if (bindless) {
|
||
dim = nir_intrinsic_image_dim(instr);
|
||
is_array = nir_intrinsic_image_array(instr);
|
||
} else {
|
||
const nir_deref_instr *image_deref = get_image_deref(instr);
|
||
const struct glsl_type *type = image_deref->type;
|
||
const nir_variable *var = nir_deref_instr_get_variable(image_deref);
|
||
dim = glsl_get_sampler_dim(type);
|
||
access |= var->data.access;
|
||
is_array = glsl_sampler_type_is_array(type);
|
||
}
|
||
|
||
struct waterfall_context wctx;
|
||
LLVMValueRef dynamic_index = enter_waterfall_image(ctx, &wctx, instr);
|
||
|
||
bool writeonly_memory = access & ACCESS_NON_READABLE;
|
||
struct ac_image_args args = {0};
|
||
|
||
args.cache_policy = get_cache_policy(ctx, access, true, writeonly_memory);
|
||
|
||
LLVMValueRef src = get_src(ctx, instr->src[3]);
|
||
if (instr->src[3].ssa->bit_size == 64) {
|
||
/* only R64_UINT and R64_SINT supported */
|
||
src = ac_llvm_extract_elem(&ctx->ac, src, 0);
|
||
src = LLVMBuildBitCast(ctx->ac.builder, src, ctx->ac.v2f32, "");
|
||
} else {
|
||
src = ac_to_float(&ctx->ac, src);
|
||
}
|
||
|
||
if (dim == GLSL_SAMPLER_DIM_BUF) {
|
||
LLVMValueRef rsrc = get_image_descriptor(ctx, instr, dynamic_index, AC_DESC_BUFFER, true);
|
||
unsigned src_channels = ac_get_llvm_num_components(src);
|
||
LLVMValueRef vindex;
|
||
|
||
if (src_channels == 3)
|
||
src = ac_build_expand_to_vec4(&ctx->ac, src, 3);
|
||
|
||
vindex =
|
||
LLVMBuildExtractElement(ctx->ac.builder, get_src(ctx, instr->src[1]), ctx->ac.i32_0, "");
|
||
|
||
ac_build_buffer_store_format(&ctx->ac, rsrc, src, vindex, ctx->ac.i32_0, args.cache_policy);
|
||
} else {
|
||
bool level_zero = nir_src_is_const(instr->src[4]) && nir_src_as_uint(instr->src[4]) == 0;
|
||
|
||
args.opcode = level_zero ? ac_image_store : ac_image_store_mip;
|
||
args.data[0] = src;
|
||
args.resource = get_image_descriptor(ctx, instr, dynamic_index, AC_DESC_IMAGE, true);
|
||
get_image_coords(ctx, instr, dynamic_index, &args, dim, is_array);
|
||
args.dim = ac_get_image_dim(ctx->ac.chip_class, dim, is_array);
|
||
if (!level_zero)
|
||
args.lod = get_src(ctx, instr->src[4]);
|
||
args.dmask = 15;
|
||
args.d16 = ac_get_elem_bits(&ctx->ac, LLVMTypeOf(args.data[0])) == 16;
|
||
|
||
ac_build_image_opcode(&ctx->ac, &args);
|
||
}
|
||
|
||
exit_waterfall(ctx, &wctx, NULL);
|
||
if (ctx->ac.postponed_kill)
|
||
ac_build_endif(&ctx->ac, 7003);
|
||
}
|
||
|
||
static LLVMValueRef visit_image_atomic(struct ac_nir_context *ctx, const nir_intrinsic_instr *instr,
|
||
bool bindless)
|
||
{
|
||
if (ctx->ac.postponed_kill) {
|
||
LLVMValueRef cond = LLVMBuildLoad2(ctx->ac.builder, ctx->ac.i1, ctx->ac.postponed_kill, "");
|
||
ac_build_ifcc(&ctx->ac, cond, 7004);
|
||
}
|
||
|
||
LLVMValueRef params[7];
|
||
int param_count = 0;
|
||
|
||
bool cmpswap = instr->intrinsic == nir_intrinsic_image_deref_atomic_comp_swap ||
|
||
instr->intrinsic == nir_intrinsic_bindless_image_atomic_comp_swap;
|
||
const char *atomic_name;
|
||
char intrinsic_name[64];
|
||
enum ac_atomic_op atomic_subop;
|
||
ASSERTED int length;
|
||
|
||
enum glsl_sampler_dim dim;
|
||
bool is_array;
|
||
if (bindless) {
|
||
dim = nir_intrinsic_image_dim(instr);
|
||
is_array = nir_intrinsic_image_array(instr);
|
||
} else {
|
||
const struct glsl_type *type = get_image_deref(instr)->type;
|
||
dim = glsl_get_sampler_dim(type);
|
||
is_array = glsl_sampler_type_is_array(type);
|
||
}
|
||
|
||
struct waterfall_context wctx;
|
||
LLVMValueRef dynamic_index = enter_waterfall_image(ctx, &wctx, instr);
|
||
|
||
switch (instr->intrinsic) {
|
||
case nir_intrinsic_bindless_image_atomic_add:
|
||
case nir_intrinsic_image_deref_atomic_add:
|
||
atomic_name = "add";
|
||
atomic_subop = ac_atomic_add;
|
||
break;
|
||
case nir_intrinsic_bindless_image_atomic_imin:
|
||
case nir_intrinsic_image_deref_atomic_imin:
|
||
atomic_name = "smin";
|
||
atomic_subop = ac_atomic_smin;
|
||
break;
|
||
case nir_intrinsic_bindless_image_atomic_umin:
|
||
case nir_intrinsic_image_deref_atomic_umin:
|
||
atomic_name = "umin";
|
||
atomic_subop = ac_atomic_umin;
|
||
break;
|
||
case nir_intrinsic_bindless_image_atomic_imax:
|
||
case nir_intrinsic_image_deref_atomic_imax:
|
||
atomic_name = "smax";
|
||
atomic_subop = ac_atomic_smax;
|
||
break;
|
||
case nir_intrinsic_bindless_image_atomic_umax:
|
||
case nir_intrinsic_image_deref_atomic_umax:
|
||
atomic_name = "umax";
|
||
atomic_subop = ac_atomic_umax;
|
||
break;
|
||
case nir_intrinsic_bindless_image_atomic_and:
|
||
case nir_intrinsic_image_deref_atomic_and:
|
||
atomic_name = "and";
|
||
atomic_subop = ac_atomic_and;
|
||
break;
|
||
case nir_intrinsic_bindless_image_atomic_or:
|
||
case nir_intrinsic_image_deref_atomic_or:
|
||
atomic_name = "or";
|
||
atomic_subop = ac_atomic_or;
|
||
break;
|
||
case nir_intrinsic_bindless_image_atomic_xor:
|
||
case nir_intrinsic_image_deref_atomic_xor:
|
||
atomic_name = "xor";
|
||
atomic_subop = ac_atomic_xor;
|
||
break;
|
||
case nir_intrinsic_bindless_image_atomic_exchange:
|
||
case nir_intrinsic_image_deref_atomic_exchange:
|
||
atomic_name = "swap";
|
||
atomic_subop = ac_atomic_swap;
|
||
break;
|
||
case nir_intrinsic_bindless_image_atomic_comp_swap:
|
||
case nir_intrinsic_image_deref_atomic_comp_swap:
|
||
atomic_name = "cmpswap";
|
||
atomic_subop = 0; /* not used */
|
||
break;
|
||
case nir_intrinsic_bindless_image_atomic_inc_wrap:
|
||
case nir_intrinsic_image_deref_atomic_inc_wrap: {
|
||
atomic_name = "inc";
|
||
atomic_subop = ac_atomic_inc_wrap;
|
||
break;
|
||
}
|
||
case nir_intrinsic_bindless_image_atomic_dec_wrap:
|
||
case nir_intrinsic_image_deref_atomic_dec_wrap:
|
||
atomic_name = "dec";
|
||
atomic_subop = ac_atomic_dec_wrap;
|
||
break;
|
||
case nir_intrinsic_image_deref_atomic_fmin:
|
||
atomic_name = "fmin";
|
||
atomic_subop = ac_atomic_fmin;
|
||
break;
|
||
case nir_intrinsic_image_deref_atomic_fmax:
|
||
atomic_name = "fmax";
|
||
atomic_subop = ac_atomic_fmax;
|
||
break;
|
||
default:
|
||
abort();
|
||
}
|
||
|
||
if (cmpswap)
|
||
params[param_count++] = get_src(ctx, instr->src[4]);
|
||
params[param_count++] = get_src(ctx, instr->src[3]);
|
||
|
||
if (atomic_subop == ac_atomic_fmin || atomic_subop == ac_atomic_fmax)
|
||
params[0] = ac_to_float(&ctx->ac, params[0]);
|
||
|
||
LLVMValueRef result;
|
||
if (dim == GLSL_SAMPLER_DIM_BUF) {
|
||
params[param_count++] = get_image_descriptor(ctx, instr, dynamic_index, AC_DESC_BUFFER, true);
|
||
params[param_count++] = LLVMBuildExtractElement(ctx->ac.builder, get_src(ctx, instr->src[1]),
|
||
ctx->ac.i32_0, ""); /* vindex */
|
||
params[param_count++] = ctx->ac.i32_0; /* voffset */
|
||
if (cmpswap && instr->dest.ssa.bit_size == 64) {
|
||
result = emit_ssbo_comp_swap_64(ctx, params[2], params[3], params[1], params[0], true);
|
||
} else {
|
||
LLVMTypeRef data_type = LLVMTypeOf(params[0]);
|
||
char type[8];
|
||
|
||
params[param_count++] = ctx->ac.i32_0; /* soffset */
|
||
params[param_count++] = ctx->ac.i32_0; /* slc */
|
||
|
||
ac_build_type_name_for_intr(data_type, type, sizeof(type));
|
||
length = snprintf(intrinsic_name, sizeof(intrinsic_name),
|
||
"llvm.amdgcn.struct.buffer.atomic.%s.%s",
|
||
atomic_name, type);
|
||
|
||
assert(length < sizeof(intrinsic_name));
|
||
result = ac_build_intrinsic(&ctx->ac, intrinsic_name, LLVMTypeOf(params[0]), params, param_count, 0);
|
||
}
|
||
} else {
|
||
struct ac_image_args args = {0};
|
||
args.opcode = cmpswap ? ac_image_atomic_cmpswap : ac_image_atomic;
|
||
args.atomic = atomic_subop;
|
||
args.data[0] = params[0];
|
||
if (cmpswap)
|
||
args.data[1] = params[1];
|
||
args.resource = get_image_descriptor(ctx, instr, dynamic_index, AC_DESC_IMAGE, true);
|
||
get_image_coords(ctx, instr, dynamic_index, &args, dim, is_array);
|
||
args.dim = ac_get_image_dim(ctx->ac.chip_class, dim, is_array);
|
||
|
||
result = ac_build_image_opcode(&ctx->ac, &args);
|
||
}
|
||
|
||
result = exit_waterfall(ctx, &wctx, result);
|
||
if (ctx->ac.postponed_kill)
|
||
ac_build_endif(&ctx->ac, 7004);
|
||
return result;
|
||
}
|
||
|
||
static LLVMValueRef visit_image_samples(struct ac_nir_context *ctx, nir_intrinsic_instr *instr)
|
||
{
|
||
struct waterfall_context wctx;
|
||
LLVMValueRef dynamic_index = enter_waterfall_image(ctx, &wctx, instr);
|
||
LLVMValueRef rsrc = get_image_descriptor(ctx, instr, dynamic_index, AC_DESC_IMAGE, false);
|
||
|
||
LLVMValueRef ret = ac_build_image_get_sample_count(&ctx->ac, rsrc);
|
||
if (ctx->abi->robust_buffer_access) {
|
||
LLVMValueRef dword1, is_null_descriptor;
|
||
|
||
/* Extract the second dword of the descriptor, if it's
|
||
* all zero, then it's a null descriptor.
|
||
*/
|
||
dword1 =
|
||
LLVMBuildExtractElement(ctx->ac.builder, rsrc, LLVMConstInt(ctx->ac.i32, 1, false), "");
|
||
is_null_descriptor = LLVMBuildICmp(ctx->ac.builder, LLVMIntEQ, dword1,
|
||
LLVMConstInt(ctx->ac.i32, 0, false), "");
|
||
ret = LLVMBuildSelect(ctx->ac.builder, is_null_descriptor, ctx->ac.i32_0, ret, "");
|
||
}
|
||
|
||
return exit_waterfall(ctx, &wctx, ret);
|
||
}
|
||
|
||
static LLVMValueRef visit_image_size(struct ac_nir_context *ctx, const nir_intrinsic_instr *instr,
|
||
bool bindless)
|
||
{
|
||
LLVMValueRef res;
|
||
|
||
enum glsl_sampler_dim dim;
|
||
bool is_array;
|
||
if (bindless) {
|
||
dim = nir_intrinsic_image_dim(instr);
|
||
is_array = nir_intrinsic_image_array(instr);
|
||
} else {
|
||
const struct glsl_type *type = get_image_deref(instr)->type;
|
||
dim = glsl_get_sampler_dim(type);
|
||
is_array = glsl_sampler_type_is_array(type);
|
||
}
|
||
|
||
struct waterfall_context wctx;
|
||
LLVMValueRef dynamic_index = enter_waterfall_image(ctx, &wctx, instr);
|
||
|
||
if (dim == GLSL_SAMPLER_DIM_BUF) {
|
||
res = get_buffer_size(
|
||
ctx, get_image_descriptor(ctx, instr, dynamic_index, AC_DESC_BUFFER, false), true);
|
||
} else {
|
||
|
||
struct ac_image_args args = {0};
|
||
|
||
args.dim = ac_get_image_dim(ctx->ac.chip_class, dim, is_array);
|
||
args.dmask = 0xf;
|
||
args.resource = get_image_descriptor(ctx, instr, dynamic_index, AC_DESC_IMAGE, false);
|
||
args.opcode = ac_image_get_resinfo;
|
||
assert(nir_src_as_uint(instr->src[1]) == 0);
|
||
args.lod = ctx->ac.i32_0;
|
||
args.attributes = AC_FUNC_ATTR_READNONE;
|
||
|
||
res = ac_build_image_opcode(&ctx->ac, &args);
|
||
|
||
if (ctx->ac.chip_class == GFX9 && dim == GLSL_SAMPLER_DIM_1D && is_array) {
|
||
LLVMValueRef two = LLVMConstInt(ctx->ac.i32, 2, false);
|
||
LLVMValueRef layers = LLVMBuildExtractElement(ctx->ac.builder, res, two, "");
|
||
res = LLVMBuildInsertElement(ctx->ac.builder, res, layers, ctx->ac.i32_1, "");
|
||
}
|
||
}
|
||
return exit_waterfall(ctx, &wctx, res);
|
||
}
|
||
|
||
static void emit_membar(struct ac_llvm_context *ac, const nir_intrinsic_instr *instr)
|
||
{
|
||
unsigned wait_flags = 0;
|
||
|
||
switch (instr->intrinsic) {
|
||
case nir_intrinsic_memory_barrier:
|
||
case nir_intrinsic_group_memory_barrier:
|
||
wait_flags = AC_WAIT_LGKM | AC_WAIT_VLOAD | AC_WAIT_VSTORE;
|
||
break;
|
||
case nir_intrinsic_memory_barrier_buffer:
|
||
case nir_intrinsic_memory_barrier_image:
|
||
wait_flags = AC_WAIT_VLOAD | AC_WAIT_VSTORE;
|
||
break;
|
||
case nir_intrinsic_memory_barrier_shared:
|
||
wait_flags = AC_WAIT_LGKM;
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
ac_build_waitcnt(ac, wait_flags);
|
||
}
|
||
|
||
void ac_emit_barrier(struct ac_llvm_context *ac, gl_shader_stage stage)
|
||
{
|
||
/* GFX6 only (thanks to a hw bug workaround):
|
||
* The real barrier instruction isn’t needed, because an entire patch
|
||
* always fits into a single wave.
|
||
*/
|
||
if (ac->chip_class == GFX6 && stage == MESA_SHADER_TESS_CTRL) {
|
||
ac_build_waitcnt(ac, AC_WAIT_LGKM | AC_WAIT_VLOAD | AC_WAIT_VSTORE);
|
||
return;
|
||
}
|
||
ac_build_s_barrier(ac);
|
||
}
|
||
|
||
static void emit_discard(struct ac_nir_context *ctx, const nir_intrinsic_instr *instr)
|
||
{
|
||
LLVMValueRef cond;
|
||
|
||
if (instr->intrinsic == nir_intrinsic_discard_if ||
|
||
instr->intrinsic == nir_intrinsic_terminate_if) {
|
||
cond = LLVMBuildNot(ctx->ac.builder, get_src(ctx, instr->src[0]), "");
|
||
} else {
|
||
assert(instr->intrinsic == nir_intrinsic_discard ||
|
||
instr->intrinsic == nir_intrinsic_terminate);
|
||
cond = ctx->ac.i1false;
|
||
}
|
||
|
||
ac_build_kill_if_false(&ctx->ac, cond);
|
||
}
|
||
|
||
static void emit_demote(struct ac_nir_context *ctx, const nir_intrinsic_instr *instr)
|
||
{
|
||
LLVMValueRef cond;
|
||
|
||
if (instr->intrinsic == nir_intrinsic_demote_if) {
|
||
cond = LLVMBuildNot(ctx->ac.builder, get_src(ctx, instr->src[0]), "");
|
||
} else {
|
||
assert(instr->intrinsic == nir_intrinsic_demote);
|
||
cond = ctx->ac.i1false;
|
||
}
|
||
|
||
if (LLVM_VERSION_MAJOR >= 13) {
|
||
/* This demotes the pixel if the condition is false. */
|
||
ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.wqm.demote", ctx->ac.voidt, &cond, 1, 0);
|
||
return;
|
||
}
|
||
|
||
LLVMValueRef mask = LLVMBuildLoad2(ctx->ac.builder, ctx->ac.i1, ctx->ac.postponed_kill, "");
|
||
mask = LLVMBuildAnd(ctx->ac.builder, mask, cond, "");
|
||
LLVMBuildStore(ctx->ac.builder, mask, ctx->ac.postponed_kill);
|
||
|
||
if (!ctx->info->fs.needs_all_helper_invocations) {
|
||
/* This is an optional optimization that only kills whole inactive quads.
|
||
* It's not used when subgroup operations can possibly use all helper
|
||
* invocations.
|
||
*/
|
||
if (ctx->ac.flow->depth == 0) {
|
||
ac_build_kill_if_false(&ctx->ac, ac_build_wqm_vote(&ctx->ac, cond));
|
||
} else {
|
||
/* amdgcn.wqm.vote doesn't work inside conditional blocks. Here's why.
|
||
*
|
||
* The problem is that kill(wqm.vote(0)) kills all active threads within
|
||
* the block, which breaks the whole quad mode outside the block if
|
||
* the conditional block has partially active quads (2x2 pixel blocks).
|
||
* E.g. threads 0-3 are active outside the block, but only thread 0 is
|
||
* active inside the block. Thread 0 shouldn't be killed by demote,
|
||
* because threads 1-3 are still active outside the block.
|
||
*
|
||
* The fix for amdgcn.wqm.vote would be to return S_WQM((live & ~exec) | cond)
|
||
* instead of S_WQM(cond).
|
||
*
|
||
* The less efficient workaround we do here is to save the kill condition
|
||
* to a temporary (postponed_kill) and do kill(wqm.vote(cond)) after we
|
||
* exit the conditional block.
|
||
*/
|
||
ctx->ac.conditional_demote_seen = true;
|
||
}
|
||
}
|
||
}
|
||
|
||
static LLVMValueRef visit_load_local_invocation_index(struct ac_nir_context *ctx)
|
||
{
|
||
if (ctx->args->vs_rel_patch_id.used) {
|
||
return ac_get_arg(&ctx->ac, ctx->args->vs_rel_patch_id);
|
||
} else if (ctx->args->merged_wave_info.used) {
|
||
/* Thread ID in threadgroup in merged ESGS. */
|
||
LLVMValueRef wave_id = ac_unpack_param(&ctx->ac, ac_get_arg(&ctx->ac, ctx->args->merged_wave_info), 24, 4);
|
||
LLVMValueRef wave_size = LLVMConstInt(ctx->ac.i32, ctx->ac.wave_size, false);
|
||
LLVMValueRef threads_before = LLVMBuildMul(ctx->ac.builder, wave_id, wave_size, "");
|
||
return LLVMBuildAdd(ctx->ac.builder, threads_before, ac_get_thread_id(&ctx->ac), "");
|
||
}
|
||
|
||
LLVMValueRef result;
|
||
LLVMValueRef thread_id = ac_get_thread_id(&ctx->ac);
|
||
result = LLVMBuildAnd(ctx->ac.builder, ac_get_arg(&ctx->ac, ctx->args->tg_size),
|
||
LLVMConstInt(ctx->ac.i32, 0xfc0, false), "");
|
||
|
||
if (ctx->ac.wave_size == 32)
|
||
result = LLVMBuildLShr(ctx->ac.builder, result, LLVMConstInt(ctx->ac.i32, 1, false), "");
|
||
|
||
return LLVMBuildAdd(ctx->ac.builder, result, thread_id, "");
|
||
}
|
||
|
||
static LLVMValueRef visit_load_subgroup_id(struct ac_nir_context *ctx)
|
||
{
|
||
if (ctx->stage == MESA_SHADER_COMPUTE) {
|
||
LLVMValueRef result;
|
||
result = LLVMBuildAnd(ctx->ac.builder, ac_get_arg(&ctx->ac, ctx->args->tg_size),
|
||
LLVMConstInt(ctx->ac.i32, 0xfc0, false), "");
|
||
return LLVMBuildLShr(ctx->ac.builder, result, LLVMConstInt(ctx->ac.i32, 6, false), "");
|
||
} else if (ctx->args->merged_wave_info.used) {
|
||
return ac_unpack_param(&ctx->ac, ac_get_arg(&ctx->ac, ctx->args->merged_wave_info), 24, 4);
|
||
} else {
|
||
return LLVMConstInt(ctx->ac.i32, 0, false);
|
||
}
|
||
}
|
||
|
||
static LLVMValueRef visit_load_num_subgroups(struct ac_nir_context *ctx)
|
||
{
|
||
if (ctx->stage == MESA_SHADER_COMPUTE) {
|
||
return LLVMBuildAnd(ctx->ac.builder, ac_get_arg(&ctx->ac, ctx->args->tg_size),
|
||
LLVMConstInt(ctx->ac.i32, 0x3f, false), "");
|
||
} else {
|
||
return LLVMConstInt(ctx->ac.i32, 1, false);
|
||
}
|
||
}
|
||
|
||
static LLVMValueRef visit_first_invocation(struct ac_nir_context *ctx)
|
||
{
|
||
LLVMValueRef active_set = ac_build_ballot(&ctx->ac, ctx->ac.i32_1);
|
||
const char *intr = ctx->ac.wave_size == 32 ? "llvm.cttz.i32" : "llvm.cttz.i64";
|
||
|
||
/* The second argument is whether cttz(0) should be defined, but we do not care. */
|
||
LLVMValueRef args[] = {active_set, ctx->ac.i1false};
|
||
LLVMValueRef result = ac_build_intrinsic(&ctx->ac, intr, ctx->ac.iN_wavemask, args, 2,
|
||
AC_FUNC_ATTR_NOUNWIND | AC_FUNC_ATTR_READNONE);
|
||
|
||
return LLVMBuildTrunc(ctx->ac.builder, result, ctx->ac.i32, "");
|
||
}
|
||
|
||
static LLVMValueRef visit_load_shared(struct ac_nir_context *ctx, const nir_intrinsic_instr *instr)
|
||
{
|
||
LLVMValueRef values[4], derived_ptr, index, ret;
|
||
unsigned const_off = nir_intrinsic_base(instr);
|
||
|
||
LLVMTypeRef elem_type = LLVMIntTypeInContext(ctx->ac.context, instr->dest.ssa.bit_size);
|
||
LLVMValueRef ptr = get_memory_ptr_t(ctx, instr->src[0], elem_type, const_off);
|
||
|
||
for (int chan = 0; chan < instr->num_components; chan++) {
|
||
index = LLVMConstInt(ctx->ac.i32, chan, 0);
|
||
derived_ptr = LLVMBuildGEP2(ctx->ac.builder, elem_type, ptr, &index, 1, "");
|
||
values[chan] = LLVMBuildLoad2(ctx->ac.builder, elem_type, derived_ptr, "");
|
||
}
|
||
|
||
ret = ac_build_gather_values(&ctx->ac, values, instr->num_components);
|
||
|
||
return LLVMBuildBitCast(ctx->ac.builder, ret, get_def_type(ctx, &instr->dest.ssa), "");
|
||
}
|
||
|
||
static void visit_store_shared(struct ac_nir_context *ctx, const nir_intrinsic_instr *instr)
|
||
{
|
||
LLVMValueRef derived_ptr, data, index;
|
||
LLVMBuilderRef builder = ctx->ac.builder;
|
||
|
||
unsigned const_off = nir_intrinsic_base(instr);
|
||
LLVMTypeRef elem_type = LLVMIntTypeInContext(ctx->ac.context, instr->src[0].ssa->bit_size);
|
||
LLVMValueRef ptr = get_memory_ptr_t(ctx, instr->src[1], elem_type, const_off);
|
||
LLVMValueRef src = get_src(ctx, instr->src[0]);
|
||
|
||
int writemask = nir_intrinsic_write_mask(instr);
|
||
for (int chan = 0; chan < 4; chan++) {
|
||
if (!(writemask & (1 << chan))) {
|
||
continue;
|
||
}
|
||
data = ac_llvm_extract_elem(&ctx->ac, src, chan);
|
||
index = LLVMConstInt(ctx->ac.i32, chan, 0);
|
||
derived_ptr = LLVMBuildGEP2(builder, elem_type, ptr, &index, 1, "");
|
||
LLVMBuildStore(builder, data, derived_ptr);
|
||
}
|
||
}
|
||
|
||
static LLVMValueRef visit_var_atomic(struct ac_nir_context *ctx, const nir_intrinsic_instr *instr,
|
||
LLVMValueRef ptr, int src_idx)
|
||
{
|
||
if (ctx->ac.postponed_kill) {
|
||
LLVMValueRef cond = LLVMBuildLoad2(ctx->ac.builder, ctx->ac.i1, ctx->ac.postponed_kill, "");
|
||
ac_build_ifcc(&ctx->ac, cond, 7005);
|
||
}
|
||
|
||
LLVMValueRef result;
|
||
LLVMValueRef src = get_src(ctx, instr->src[src_idx]);
|
||
|
||
const char *sync_scope = "workgroup-one-as";
|
||
|
||
if (instr->intrinsic == nir_intrinsic_shared_atomic_comp_swap) {
|
||
LLVMValueRef src1 = get_src(ctx, instr->src[src_idx + 1]);
|
||
result = ac_build_atomic_cmp_xchg(&ctx->ac, ptr, src, src1, sync_scope);
|
||
result = LLVMBuildExtractValue(ctx->ac.builder, result, 0, "");
|
||
} else if (instr->intrinsic == nir_intrinsic_shared_atomic_fmin ||
|
||
instr->intrinsic == nir_intrinsic_shared_atomic_fmax) {
|
||
const char *op = instr->intrinsic == nir_intrinsic_shared_atomic_fmin ? "fmin" : "fmax";
|
||
char name[64], type[8];
|
||
LLVMValueRef params[5];
|
||
LLVMTypeRef src_type;
|
||
int arg_count = 0;
|
||
|
||
src = ac_to_float(&ctx->ac, src);
|
||
src_type = LLVMTypeOf(src);
|
||
|
||
LLVMTypeRef ptr_type =
|
||
LLVMPointerType(src_type, LLVMGetPointerAddressSpace(LLVMTypeOf(ptr)));
|
||
ptr = LLVMBuildBitCast(ctx->ac.builder, ptr, ptr_type, "");
|
||
|
||
params[arg_count++] = ptr;
|
||
params[arg_count++] = src;
|
||
params[arg_count++] = ctx->ac.i32_0;
|
||
params[arg_count++] = ctx->ac.i32_0;
|
||
params[arg_count++] = ctx->ac.i1false;
|
||
|
||
ac_build_type_name_for_intr(src_type, type, sizeof(type));
|
||
snprintf(name, sizeof(name), "llvm.amdgcn.ds.%s.%s", op, type);
|
||
|
||
result = ac_build_intrinsic(&ctx->ac, name, src_type, params, arg_count, 0);
|
||
result = ac_to_integer(&ctx->ac, result);
|
||
} else {
|
||
LLVMAtomicRMWBinOp op;
|
||
switch (instr->intrinsic) {
|
||
case nir_intrinsic_shared_atomic_add:
|
||
op = LLVMAtomicRMWBinOpAdd;
|
||
break;
|
||
case nir_intrinsic_shared_atomic_umin:
|
||
op = LLVMAtomicRMWBinOpUMin;
|
||
break;
|
||
case nir_intrinsic_shared_atomic_umax:
|
||
op = LLVMAtomicRMWBinOpUMax;
|
||
break;
|
||
case nir_intrinsic_shared_atomic_imin:
|
||
op = LLVMAtomicRMWBinOpMin;
|
||
break;
|
||
case nir_intrinsic_shared_atomic_imax:
|
||
op = LLVMAtomicRMWBinOpMax;
|
||
break;
|
||
case nir_intrinsic_shared_atomic_and:
|
||
op = LLVMAtomicRMWBinOpAnd;
|
||
break;
|
||
case nir_intrinsic_shared_atomic_or:
|
||
op = LLVMAtomicRMWBinOpOr;
|
||
break;
|
||
case nir_intrinsic_shared_atomic_xor:
|
||
op = LLVMAtomicRMWBinOpXor;
|
||
break;
|
||
case nir_intrinsic_shared_atomic_exchange:
|
||
op = LLVMAtomicRMWBinOpXchg;
|
||
break;
|
||
case nir_intrinsic_shared_atomic_fadd:
|
||
op = LLVMAtomicRMWBinOpFAdd;
|
||
break;
|
||
default:
|
||
return NULL;
|
||
}
|
||
|
||
LLVMValueRef val;
|
||
|
||
if (instr->intrinsic == nir_intrinsic_shared_atomic_fadd) {
|
||
val = ac_to_float(&ctx->ac, src);
|
||
|
||
LLVMTypeRef ptr_type =
|
||
LLVMPointerType(LLVMTypeOf(val), LLVMGetPointerAddressSpace(LLVMTypeOf(ptr)));
|
||
ptr = LLVMBuildBitCast(ctx->ac.builder, ptr, ptr_type, "");
|
||
} else {
|
||
val = ac_to_integer(&ctx->ac, src);
|
||
}
|
||
|
||
result = ac_build_atomic_rmw(&ctx->ac, op, ptr, val, sync_scope);
|
||
|
||
if (instr->intrinsic == nir_intrinsic_shared_atomic_fadd ||
|
||
instr->intrinsic == nir_intrinsic_deref_atomic_fadd) {
|
||
result = ac_to_integer(&ctx->ac, result);
|
||
}
|
||
}
|
||
|
||
if (ctx->ac.postponed_kill)
|
||
ac_build_endif(&ctx->ac, 7005);
|
||
return result;
|
||
}
|
||
|
||
static LLVMValueRef load_sample_pos(struct ac_nir_context *ctx)
|
||
{
|
||
LLVMValueRef values[2];
|
||
LLVMValueRef pos[2];
|
||
|
||
pos[0] = ac_to_float(&ctx->ac, ac_get_arg(&ctx->ac, ctx->args->frag_pos[0]));
|
||
pos[1] = ac_to_float(&ctx->ac, ac_get_arg(&ctx->ac, ctx->args->frag_pos[1]));
|
||
|
||
values[0] = ac_build_fract(&ctx->ac, pos[0], 32);
|
||
values[1] = ac_build_fract(&ctx->ac, pos[1], 32);
|
||
return ac_build_gather_values(&ctx->ac, values, 2);
|
||
}
|
||
|
||
static LLVMValueRef lookup_interp_param(struct ac_nir_context *ctx, enum glsl_interp_mode interp,
|
||
unsigned location)
|
||
{
|
||
switch (interp) {
|
||
case INTERP_MODE_FLAT:
|
||
default:
|
||
return NULL;
|
||
case INTERP_MODE_SMOOTH:
|
||
case INTERP_MODE_NONE:
|
||
if (location == INTERP_CENTER)
|
||
return ac_get_arg(&ctx->ac, ctx->args->persp_center);
|
||
else if (location == INTERP_CENTROID)
|
||
return ctx->abi->persp_centroid;
|
||
else if (location == INTERP_SAMPLE)
|
||
return ac_get_arg(&ctx->ac, ctx->args->persp_sample);
|
||
break;
|
||
case INTERP_MODE_NOPERSPECTIVE:
|
||
if (location == INTERP_CENTER)
|
||
return ac_get_arg(&ctx->ac, ctx->args->linear_center);
|
||
else if (location == INTERP_CENTROID)
|
||
return ctx->abi->linear_centroid;
|
||
else if (location == INTERP_SAMPLE)
|
||
return ac_get_arg(&ctx->ac, ctx->args->linear_sample);
|
||
break;
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
static LLVMValueRef barycentric_center(struct ac_nir_context *ctx, unsigned mode)
|
||
{
|
||
LLVMValueRef interp_param = lookup_interp_param(ctx, mode, INTERP_CENTER);
|
||
return LLVMBuildBitCast(ctx->ac.builder, interp_param, ctx->ac.v2i32, "");
|
||
}
|
||
|
||
static LLVMValueRef barycentric_offset(struct ac_nir_context *ctx, unsigned mode,
|
||
LLVMValueRef offset)
|
||
{
|
||
LLVMValueRef interp_param = lookup_interp_param(ctx, mode, INTERP_CENTER);
|
||
LLVMValueRef src_c0 =
|
||
ac_to_float(&ctx->ac, LLVMBuildExtractElement(ctx->ac.builder, offset, ctx->ac.i32_0, ""));
|
||
LLVMValueRef src_c1 =
|
||
ac_to_float(&ctx->ac, LLVMBuildExtractElement(ctx->ac.builder, offset, ctx->ac.i32_1, ""));
|
||
|
||
LLVMValueRef ij_out[2];
|
||
LLVMValueRef ddxy_out = ac_build_ddxy_interp(&ctx->ac, interp_param);
|
||
|
||
/*
|
||
* take the I then J parameters, and the DDX/Y for it, and
|
||
* calculate the IJ inputs for the interpolator.
|
||
* temp1 = ddx * offset/sample.x + I;
|
||
* interp_param.I = ddy * offset/sample.y + temp1;
|
||
* temp1 = ddx * offset/sample.x + J;
|
||
* interp_param.J = ddy * offset/sample.y + temp1;
|
||
*/
|
||
for (unsigned i = 0; i < 2; i++) {
|
||
LLVMValueRef ix_ll = LLVMConstInt(ctx->ac.i32, i, false);
|
||
LLVMValueRef iy_ll = LLVMConstInt(ctx->ac.i32, i + 2, false);
|
||
LLVMValueRef ddx_el = LLVMBuildExtractElement(ctx->ac.builder, ddxy_out, ix_ll, "");
|
||
LLVMValueRef ddy_el = LLVMBuildExtractElement(ctx->ac.builder, ddxy_out, iy_ll, "");
|
||
LLVMValueRef interp_el = LLVMBuildExtractElement(ctx->ac.builder, interp_param, ix_ll, "");
|
||
LLVMValueRef temp1, temp2;
|
||
|
||
interp_el = LLVMBuildBitCast(ctx->ac.builder, interp_el, ctx->ac.f32, "");
|
||
|
||
temp1 = ac_build_fmad(&ctx->ac, ddx_el, src_c0, interp_el);
|
||
temp2 = ac_build_fmad(&ctx->ac, ddy_el, src_c1, temp1);
|
||
|
||
ij_out[i] = LLVMBuildBitCast(ctx->ac.builder, temp2, ctx->ac.i32, "");
|
||
}
|
||
interp_param = ac_build_gather_values(&ctx->ac, ij_out, 2);
|
||
return LLVMBuildBitCast(ctx->ac.builder, interp_param, ctx->ac.v2i32, "");
|
||
}
|
||
|
||
static LLVMValueRef barycentric_centroid(struct ac_nir_context *ctx, unsigned mode)
|
||
{
|
||
LLVMValueRef interp_param = lookup_interp_param(ctx, mode, INTERP_CENTROID);
|
||
return LLVMBuildBitCast(ctx->ac.builder, interp_param, ctx->ac.v2i32, "");
|
||
}
|
||
|
||
static LLVMValueRef barycentric_at_sample(struct ac_nir_context *ctx, unsigned mode,
|
||
LLVMValueRef sample_id)
|
||
{
|
||
if (ctx->abi->interp_at_sample_force_center)
|
||
return barycentric_center(ctx, mode);
|
||
|
||
LLVMValueRef halfval = LLVMConstReal(ctx->ac.f32, 0.5f);
|
||
|
||
/* fetch sample ID */
|
||
LLVMValueRef sample_pos = ctx->abi->load_sample_position(ctx->abi, sample_id);
|
||
|
||
LLVMValueRef src_c0 = LLVMBuildExtractElement(ctx->ac.builder, sample_pos, ctx->ac.i32_0, "");
|
||
src_c0 = LLVMBuildFSub(ctx->ac.builder, src_c0, halfval, "");
|
||
LLVMValueRef src_c1 = LLVMBuildExtractElement(ctx->ac.builder, sample_pos, ctx->ac.i32_1, "");
|
||
src_c1 = LLVMBuildFSub(ctx->ac.builder, src_c1, halfval, "");
|
||
LLVMValueRef coords[] = {src_c0, src_c1};
|
||
LLVMValueRef offset = ac_build_gather_values(&ctx->ac, coords, 2);
|
||
|
||
return barycentric_offset(ctx, mode, offset);
|
||
}
|
||
|
||
static LLVMValueRef barycentric_sample(struct ac_nir_context *ctx, unsigned mode)
|
||
{
|
||
LLVMValueRef interp_param = lookup_interp_param(ctx, mode, INTERP_SAMPLE);
|
||
return LLVMBuildBitCast(ctx->ac.builder, interp_param, ctx->ac.v2i32, "");
|
||
}
|
||
|
||
static LLVMValueRef barycentric_model(struct ac_nir_context *ctx)
|
||
{
|
||
return LLVMBuildBitCast(ctx->ac.builder, ac_get_arg(&ctx->ac, ctx->args->pull_model),
|
||
ctx->ac.v3i32, "");
|
||
}
|
||
|
||
static LLVMValueRef load_interpolated_input(struct ac_nir_context *ctx, LLVMValueRef interp_param,
|
||
unsigned index, unsigned comp_start,
|
||
unsigned num_components, unsigned bitsize,
|
||
bool high_16bits)
|
||
{
|
||
LLVMValueRef attr_number = LLVMConstInt(ctx->ac.i32, index, false);
|
||
LLVMValueRef interp_param_f;
|
||
|
||
interp_param_f = LLVMBuildBitCast(ctx->ac.builder, interp_param, ctx->ac.v2f32, "");
|
||
LLVMValueRef i = LLVMBuildExtractElement(ctx->ac.builder, interp_param_f, ctx->ac.i32_0, "");
|
||
LLVMValueRef j = LLVMBuildExtractElement(ctx->ac.builder, interp_param_f, ctx->ac.i32_1, "");
|
||
|
||
/* Workaround for issue 2647: kill threads with infinite interpolation coeffs */
|
||
if (ctx->verified_interp && !_mesa_hash_table_search(ctx->verified_interp, interp_param)) {
|
||
LLVMValueRef cond = ac_build_is_inf_or_nan(&ctx->ac, i);
|
||
ac_build_kill_if_false(&ctx->ac, LLVMBuildNot(ctx->ac.builder, cond, ""));
|
||
_mesa_hash_table_insert(ctx->verified_interp, interp_param, interp_param);
|
||
}
|
||
|
||
LLVMValueRef values[4];
|
||
assert(bitsize == 16 || bitsize == 32);
|
||
for (unsigned comp = 0; comp < num_components; comp++) {
|
||
LLVMValueRef llvm_chan = LLVMConstInt(ctx->ac.i32, comp_start + comp, false);
|
||
if (bitsize == 16) {
|
||
values[comp] = ac_build_fs_interp_f16(&ctx->ac, llvm_chan, attr_number,
|
||
ac_get_arg(&ctx->ac, ctx->args->prim_mask), i, j,
|
||
high_16bits);
|
||
} else {
|
||
values[comp] = ac_build_fs_interp(&ctx->ac, llvm_chan, attr_number,
|
||
ac_get_arg(&ctx->ac, ctx->args->prim_mask), i, j);
|
||
}
|
||
}
|
||
|
||
return ac_to_integer(&ctx->ac, ac_build_gather_values(&ctx->ac, values, num_components));
|
||
}
|
||
|
||
static LLVMValueRef visit_load(struct ac_nir_context *ctx, nir_intrinsic_instr *instr,
|
||
bool is_output)
|
||
{
|
||
LLVMValueRef values[8];
|
||
LLVMTypeRef dest_type = get_def_type(ctx, &instr->dest.ssa);
|
||
LLVMTypeRef component_type;
|
||
unsigned base = nir_intrinsic_base(instr);
|
||
unsigned component = nir_intrinsic_component(instr);
|
||
unsigned count = instr->dest.ssa.num_components;
|
||
nir_src *vertex_index_src = nir_get_io_arrayed_index_src(instr);
|
||
LLVMValueRef vertex_index = vertex_index_src ? get_src(ctx, *vertex_index_src) : NULL;
|
||
nir_src offset = *nir_get_io_offset_src(instr);
|
||
LLVMValueRef indir_index = NULL;
|
||
|
||
switch (instr->dest.ssa.bit_size) {
|
||
case 16:
|
||
case 32:
|
||
break;
|
||
case 64:
|
||
unreachable("64-bit IO should have been lowered");
|
||
return NULL;
|
||
default:
|
||
unreachable("unhandled load type");
|
||
return NULL;
|
||
}
|
||
|
||
if (LLVMGetTypeKind(dest_type) == LLVMVectorTypeKind)
|
||
component_type = LLVMGetElementType(dest_type);
|
||
else
|
||
component_type = dest_type;
|
||
|
||
if (nir_src_is_const(offset))
|
||
assert(nir_src_as_uint(offset) == 0);
|
||
else
|
||
indir_index = get_src(ctx, offset);
|
||
|
||
if (ctx->stage == MESA_SHADER_TESS_CTRL ||
|
||
(ctx->stage == MESA_SHADER_TESS_EVAL && !is_output)) {
|
||
bool vertex_index_is_invoc_id =
|
||
vertex_index_src &&
|
||
vertex_index_src->ssa->parent_instr->type == nir_instr_type_intrinsic &&
|
||
nir_instr_as_intrinsic(vertex_index_src->ssa->parent_instr)->intrinsic ==
|
||
nir_intrinsic_load_invocation_id;
|
||
|
||
LLVMValueRef result = ctx->abi->load_tess_varyings(ctx->abi, component_type,
|
||
vertex_index, indir_index,
|
||
base, component,
|
||
count, !is_output,
|
||
vertex_index_is_invoc_id);
|
||
if (instr->dest.ssa.bit_size == 16) {
|
||
result = ac_to_integer(&ctx->ac, result);
|
||
result = LLVMBuildTrunc(ctx->ac.builder, result, dest_type, "");
|
||
}
|
||
return LLVMBuildBitCast(ctx->ac.builder, result, dest_type, "");
|
||
}
|
||
|
||
/* No indirect indexing is allowed after this point. */
|
||
assert(!indir_index);
|
||
|
||
if (ctx->stage == MESA_SHADER_GEOMETRY) {
|
||
assert(nir_src_is_const(*vertex_index_src));
|
||
|
||
return ctx->abi->load_inputs(ctx->abi, base, component, count,
|
||
nir_src_as_uint(*vertex_index_src), component_type);
|
||
}
|
||
|
||
if (ctx->stage == MESA_SHADER_FRAGMENT && is_output &&
|
||
nir_intrinsic_io_semantics(instr).fb_fetch_output)
|
||
return ctx->abi->emit_fbfetch(ctx->abi);
|
||
|
||
if (ctx->stage == MESA_SHADER_VERTEX && !is_output)
|
||
return ctx->abi->load_inputs(ctx->abi, base, component, count, 0, component_type);
|
||
|
||
/* Other non-fragment cases have outputs in temporaries. */
|
||
if (is_output && (ctx->stage == MESA_SHADER_VERTEX || ctx->stage == MESA_SHADER_TESS_EVAL)) {
|
||
assert(is_output);
|
||
|
||
for (unsigned chan = component; chan < count + component; chan++)
|
||
values[chan] = LLVMBuildLoad(ctx->ac.builder, ctx->abi->outputs[base * 4 + chan], "");
|
||
|
||
LLVMValueRef result = ac_build_varying_gather_values(&ctx->ac, values, count, component);
|
||
return LLVMBuildBitCast(ctx->ac.builder, result, dest_type, "");
|
||
}
|
||
|
||
/* Fragment shader inputs. */
|
||
assert(ctx->stage == MESA_SHADER_FRAGMENT);
|
||
unsigned vertex_id = 2; /* P0 */
|
||
|
||
if (instr->intrinsic == nir_intrinsic_load_input_vertex) {
|
||
nir_const_value *src0 = nir_src_as_const_value(instr->src[0]);
|
||
|
||
switch (src0[0].i32) {
|
||
case 0:
|
||
vertex_id = 2;
|
||
break;
|
||
case 1:
|
||
vertex_id = 0;
|
||
break;
|
||
case 2:
|
||
vertex_id = 1;
|
||
break;
|
||
default:
|
||
unreachable("Invalid vertex index");
|
||
}
|
||
}
|
||
|
||
LLVMValueRef attr_number = LLVMConstInt(ctx->ac.i32, base, false);
|
||
|
||
for (unsigned chan = 0; chan < count; chan++) {
|
||
LLVMValueRef llvm_chan = LLVMConstInt(ctx->ac.i32, (component + chan) % 4, false);
|
||
values[chan] =
|
||
ac_build_fs_interp_mov(&ctx->ac, LLVMConstInt(ctx->ac.i32, vertex_id, false), llvm_chan,
|
||
attr_number, ac_get_arg(&ctx->ac, ctx->args->prim_mask));
|
||
values[chan] = LLVMBuildBitCast(ctx->ac.builder, values[chan], ctx->ac.i32, "");
|
||
if (instr->dest.ssa.bit_size == 16 &&
|
||
nir_intrinsic_io_semantics(instr).high_16bits)
|
||
values[chan] = LLVMBuildLShr(ctx->ac.builder, values[chan], LLVMConstInt(ctx->ac.i32, 16, 0), "");
|
||
values[chan] =
|
||
LLVMBuildTruncOrBitCast(ctx->ac.builder, values[chan],
|
||
instr->dest.ssa.bit_size == 16 ? ctx->ac.i16 : ctx->ac.i32, "");
|
||
}
|
||
|
||
LLVMValueRef result = ac_build_gather_values(&ctx->ac, values, count);
|
||
return LLVMBuildBitCast(ctx->ac.builder, result, dest_type, "");
|
||
}
|
||
|
||
static LLVMValueRef
|
||
emit_load_frag_shading_rate(struct ac_nir_context *ctx)
|
||
{
|
||
LLVMValueRef x_rate, y_rate, cond;
|
||
|
||
/* VRS Rate X = Ancillary[2:3]
|
||
* VRS Rate Y = Ancillary[4:5]
|
||
*/
|
||
x_rate = ac_unpack_param(&ctx->ac, ac_get_arg(&ctx->ac, ctx->args->ancillary), 2, 2);
|
||
y_rate = ac_unpack_param(&ctx->ac, ac_get_arg(&ctx->ac, ctx->args->ancillary), 4, 2);
|
||
|
||
/* xRate = xRate == 0x1 ? Horizontal2Pixels : None. */
|
||
cond = LLVMBuildICmp(ctx->ac.builder, LLVMIntEQ, x_rate, ctx->ac.i32_1, "");
|
||
x_rate = LLVMBuildSelect(ctx->ac.builder, cond,
|
||
LLVMConstInt(ctx->ac.i32, 4, false), ctx->ac.i32_0, "");
|
||
|
||
/* yRate = yRate == 0x1 ? Vertical2Pixels : None. */
|
||
cond = LLVMBuildICmp(ctx->ac.builder, LLVMIntEQ, y_rate, ctx->ac.i32_1, "");
|
||
y_rate = LLVMBuildSelect(ctx->ac.builder, cond,
|
||
LLVMConstInt(ctx->ac.i32, 1, false), ctx->ac.i32_0, "");
|
||
|
||
return LLVMBuildOr(ctx->ac.builder, x_rate, y_rate, "");
|
||
}
|
||
|
||
static LLVMValueRef
|
||
emit_load_frag_coord(struct ac_nir_context *ctx)
|
||
{
|
||
LLVMValueRef values[4] = {
|
||
ac_get_arg(&ctx->ac, ctx->args->frag_pos[0]), ac_get_arg(&ctx->ac, ctx->args->frag_pos[1]),
|
||
ac_get_arg(&ctx->ac, ctx->args->frag_pos[2]),
|
||
ac_build_fdiv(&ctx->ac, ctx->ac.f32_1, ac_get_arg(&ctx->ac, ctx->args->frag_pos[3]))};
|
||
|
||
return ac_to_integer(&ctx->ac, ac_build_gather_values(&ctx->ac, values, 4));
|
||
}
|
||
|
||
static void visit_intrinsic(struct ac_nir_context *ctx, nir_intrinsic_instr *instr)
|
||
{
|
||
LLVMValueRef result = NULL;
|
||
|
||
switch (instr->intrinsic) {
|
||
case nir_intrinsic_ballot:
|
||
result = ac_build_ballot(&ctx->ac, get_src(ctx, instr->src[0]));
|
||
if (ctx->ac.ballot_mask_bits > ctx->ac.wave_size)
|
||
result = LLVMBuildZExt(ctx->ac.builder, result, ctx->ac.iN_ballotmask, "");
|
||
break;
|
||
case nir_intrinsic_read_invocation:
|
||
result =
|
||
ac_build_readlane(&ctx->ac, get_src(ctx, instr->src[0]), get_src(ctx, instr->src[1]));
|
||
break;
|
||
case nir_intrinsic_read_first_invocation:
|
||
result = ac_build_readlane(&ctx->ac, get_src(ctx, instr->src[0]), NULL);
|
||
break;
|
||
case nir_intrinsic_load_subgroup_invocation:
|
||
result = ac_get_thread_id(&ctx->ac);
|
||
break;
|
||
case nir_intrinsic_load_workgroup_id: {
|
||
LLVMValueRef values[3];
|
||
|
||
for (int i = 0; i < 3; i++) {
|
||
values[i] = ctx->args->workgroup_ids[i].used
|
||
? ac_get_arg(&ctx->ac, ctx->args->workgroup_ids[i])
|
||
: ctx->ac.i32_0;
|
||
}
|
||
|
||
result = ac_build_gather_values(&ctx->ac, values, 3);
|
||
break;
|
||
}
|
||
case nir_intrinsic_load_base_vertex:
|
||
case nir_intrinsic_load_first_vertex:
|
||
result = ctx->abi->load_base_vertex(ctx->abi,
|
||
instr->intrinsic == nir_intrinsic_load_base_vertex);
|
||
break;
|
||
case nir_intrinsic_load_workgroup_size:
|
||
result = ctx->abi->load_local_group_size(ctx->abi);
|
||
break;
|
||
case nir_intrinsic_load_vertex_id:
|
||
result = LLVMBuildAdd(ctx->ac.builder,
|
||
ctx->vertex_id_replaced ? ctx->vertex_id_replaced :
|
||
ac_get_arg(&ctx->ac, ctx->args->vertex_id),
|
||
ac_get_arg(&ctx->ac, ctx->args->base_vertex), "");
|
||
break;
|
||
case nir_intrinsic_load_vertex_id_zero_base: {
|
||
result = ctx->vertex_id_replaced ? ctx->vertex_id_replaced : ctx->abi->vertex_id;
|
||
break;
|
||
}
|
||
case nir_intrinsic_load_local_invocation_id: {
|
||
LLVMValueRef ids = ac_get_arg(&ctx->ac, ctx->args->local_invocation_ids);
|
||
|
||
if (LLVMGetTypeKind(LLVMTypeOf(ids)) == LLVMIntegerTypeKind) {
|
||
/* Thread IDs are packed in VGPR0, 10 bits per component. */
|
||
LLVMValueRef id[3];
|
||
|
||
for (unsigned i = 0; i < 3; i++)
|
||
id[i] = ac_unpack_param(&ctx->ac, ids, i * 10, 10);
|
||
|
||
result = ac_build_gather_values(&ctx->ac, id, 3);
|
||
} else {
|
||
result = ids;
|
||
}
|
||
break;
|
||
}
|
||
case nir_intrinsic_load_base_instance:
|
||
result = ac_get_arg(&ctx->ac, ctx->args->start_instance);
|
||
break;
|
||
case nir_intrinsic_load_draw_id:
|
||
result = ac_get_arg(&ctx->ac, ctx->args->draw_id);
|
||
break;
|
||
case nir_intrinsic_load_view_index:
|
||
result = ac_get_arg(&ctx->ac, ctx->args->view_index);
|
||
break;
|
||
case nir_intrinsic_load_invocation_id:
|
||
if (ctx->stage == MESA_SHADER_TESS_CTRL) {
|
||
result = ac_unpack_param(&ctx->ac, ac_get_arg(&ctx->ac, ctx->args->tcs_rel_ids), 8, 5);
|
||
} else {
|
||
if (ctx->ac.chip_class >= GFX10) {
|
||
result =
|
||
LLVMBuildAnd(ctx->ac.builder, ac_get_arg(&ctx->ac, ctx->args->gs_invocation_id),
|
||
LLVMConstInt(ctx->ac.i32, 127, 0), "");
|
||
} else {
|
||
result = ac_get_arg(&ctx->ac, ctx->args->gs_invocation_id);
|
||
}
|
||
}
|
||
break;
|
||
case nir_intrinsic_load_primitive_id:
|
||
if (ctx->stage == MESA_SHADER_GEOMETRY) {
|
||
result = ac_get_arg(&ctx->ac, ctx->args->gs_prim_id);
|
||
} else if (ctx->stage == MESA_SHADER_TESS_CTRL) {
|
||
result = ac_get_arg(&ctx->ac, ctx->args->tcs_patch_id);
|
||
} else if (ctx->stage == MESA_SHADER_TESS_EVAL) {
|
||
result = ctx->tes_patch_id_replaced ? ctx->tes_patch_id_replaced
|
||
: ac_get_arg(&ctx->ac, ctx->args->tes_patch_id);
|
||
} else
|
||
fprintf(stderr, "Unknown primitive id intrinsic: %d", ctx->stage);
|
||
break;
|
||
case nir_intrinsic_load_sample_id:
|
||
result = ac_unpack_param(&ctx->ac, ac_get_arg(&ctx->ac, ctx->args->ancillary), 8, 4);
|
||
break;
|
||
case nir_intrinsic_load_sample_pos:
|
||
result = load_sample_pos(ctx);
|
||
break;
|
||
case nir_intrinsic_load_sample_mask_in:
|
||
result = ctx->abi->load_sample_mask_in(ctx->abi);
|
||
break;
|
||
case nir_intrinsic_load_frag_coord:
|
||
result = emit_load_frag_coord(ctx);
|
||
break;
|
||
case nir_intrinsic_load_frag_shading_rate:
|
||
result = emit_load_frag_shading_rate(ctx);
|
||
break;
|
||
case nir_intrinsic_load_front_face:
|
||
result = emit_i2b(&ctx->ac, ac_get_arg(&ctx->ac, ctx->args->front_face));
|
||
break;
|
||
case nir_intrinsic_load_helper_invocation:
|
||
result = ac_build_load_helper_invocation(&ctx->ac);
|
||
break;
|
||
case nir_intrinsic_is_helper_invocation:
|
||
result = ac_build_is_helper_invocation(&ctx->ac);
|
||
break;
|
||
case nir_intrinsic_load_color0:
|
||
result = ctx->abi->color0;
|
||
break;
|
||
case nir_intrinsic_load_color1:
|
||
result = ctx->abi->color1;
|
||
break;
|
||
case nir_intrinsic_load_user_data_amd:
|
||
assert(LLVMTypeOf(ctx->abi->user_data) == ctx->ac.v4i32);
|
||
result = ctx->abi->user_data;
|
||
break;
|
||
case nir_intrinsic_load_instance_id:
|
||
result = ctx->instance_id_replaced ? ctx->instance_id_replaced : ctx->abi->instance_id;
|
||
break;
|
||
case nir_intrinsic_load_num_workgroups:
|
||
if (ctx->abi->load_grid_size_from_user_sgpr) {
|
||
result = ac_get_arg(&ctx->ac, ctx->args->num_work_groups);
|
||
} else {
|
||
LLVMTypeRef ptr_type = ac_array_in_const_addr_space(ctx->ac.v3i32);
|
||
LLVMValueRef ptr = ac_get_arg(&ctx->ac, ctx->args->num_work_groups);
|
||
ptr = LLVMBuildBitCast(ctx->ac.builder, ptr, ptr_type, "");
|
||
result = ac_build_load_invariant(&ctx->ac, ptr, ctx->ac.i32_0);
|
||
}
|
||
break;
|
||
case nir_intrinsic_load_local_invocation_index:
|
||
result = visit_load_local_invocation_index(ctx);
|
||
break;
|
||
case nir_intrinsic_load_subgroup_id:
|
||
result = visit_load_subgroup_id(ctx);
|
||
break;
|
||
case nir_intrinsic_load_num_subgroups:
|
||
result = visit_load_num_subgroups(ctx);
|
||
break;
|
||
case nir_intrinsic_first_invocation:
|
||
result = visit_first_invocation(ctx);
|
||
break;
|
||
case nir_intrinsic_load_push_constant:
|
||
result = visit_load_push_constant(ctx, instr);
|
||
break;
|
||
case nir_intrinsic_store_ssbo:
|
||
visit_store_ssbo(ctx, instr);
|
||
break;
|
||
case nir_intrinsic_load_ssbo:
|
||
result = visit_load_buffer(ctx, instr);
|
||
break;
|
||
case nir_intrinsic_load_global_constant:
|
||
case nir_intrinsic_load_global:
|
||
result = visit_load_global(ctx, instr);
|
||
break;
|
||
case nir_intrinsic_store_global:
|
||
visit_store_global(ctx, instr);
|
||
break;
|
||
case nir_intrinsic_global_atomic_add:
|
||
case nir_intrinsic_global_atomic_imin:
|
||
case nir_intrinsic_global_atomic_umin:
|
||
case nir_intrinsic_global_atomic_imax:
|
||
case nir_intrinsic_global_atomic_umax:
|
||
case nir_intrinsic_global_atomic_and:
|
||
case nir_intrinsic_global_atomic_or:
|
||
case nir_intrinsic_global_atomic_xor:
|
||
case nir_intrinsic_global_atomic_exchange:
|
||
case nir_intrinsic_global_atomic_comp_swap:
|
||
case nir_intrinsic_global_atomic_fmin:
|
||
case nir_intrinsic_global_atomic_fmax:
|
||
result = visit_global_atomic(ctx, instr);
|
||
break;
|
||
case nir_intrinsic_ssbo_atomic_add:
|
||
case nir_intrinsic_ssbo_atomic_imin:
|
||
case nir_intrinsic_ssbo_atomic_umin:
|
||
case nir_intrinsic_ssbo_atomic_imax:
|
||
case nir_intrinsic_ssbo_atomic_umax:
|
||
case nir_intrinsic_ssbo_atomic_and:
|
||
case nir_intrinsic_ssbo_atomic_or:
|
||
case nir_intrinsic_ssbo_atomic_xor:
|
||
case nir_intrinsic_ssbo_atomic_exchange:
|
||
case nir_intrinsic_ssbo_atomic_comp_swap:
|
||
case nir_intrinsic_ssbo_atomic_fmin:
|
||
case nir_intrinsic_ssbo_atomic_fmax:
|
||
result = visit_atomic_ssbo(ctx, instr);
|
||
break;
|
||
case nir_intrinsic_load_ubo:
|
||
result = visit_load_ubo_buffer(ctx, instr);
|
||
break;
|
||
case nir_intrinsic_get_ssbo_size:
|
||
result = visit_get_ssbo_size(ctx, instr);
|
||
break;
|
||
case nir_intrinsic_load_input:
|
||
case nir_intrinsic_load_input_vertex:
|
||
case nir_intrinsic_load_per_vertex_input:
|
||
result = visit_load(ctx, instr, false);
|
||
break;
|
||
case nir_intrinsic_load_output:
|
||
case nir_intrinsic_load_per_vertex_output:
|
||
result = visit_load(ctx, instr, true);
|
||
break;
|
||
case nir_intrinsic_store_output:
|
||
case nir_intrinsic_store_per_vertex_output:
|
||
visit_store_output(ctx, instr);
|
||
break;
|
||
case nir_intrinsic_load_shared:
|
||
result = visit_load_shared(ctx, instr);
|
||
break;
|
||
case nir_intrinsic_store_shared:
|
||
visit_store_shared(ctx, instr);
|
||
break;
|
||
case nir_intrinsic_bindless_image_samples:
|
||
case nir_intrinsic_image_deref_samples:
|
||
result = visit_image_samples(ctx, instr);
|
||
break;
|
||
case nir_intrinsic_bindless_image_load:
|
||
case nir_intrinsic_bindless_image_sparse_load:
|
||
result = visit_image_load(ctx, instr, true);
|
||
break;
|
||
case nir_intrinsic_image_deref_load:
|
||
case nir_intrinsic_image_deref_sparse_load:
|
||
result = visit_image_load(ctx, instr, false);
|
||
break;
|
||
case nir_intrinsic_bindless_image_store:
|
||
visit_image_store(ctx, instr, true);
|
||
break;
|
||
case nir_intrinsic_image_deref_store:
|
||
visit_image_store(ctx, instr, false);
|
||
break;
|
||
case nir_intrinsic_bindless_image_atomic_add:
|
||
case nir_intrinsic_bindless_image_atomic_imin:
|
||
case nir_intrinsic_bindless_image_atomic_umin:
|
||
case nir_intrinsic_bindless_image_atomic_imax:
|
||
case nir_intrinsic_bindless_image_atomic_umax:
|
||
case nir_intrinsic_bindless_image_atomic_and:
|
||
case nir_intrinsic_bindless_image_atomic_or:
|
||
case nir_intrinsic_bindless_image_atomic_xor:
|
||
case nir_intrinsic_bindless_image_atomic_exchange:
|
||
case nir_intrinsic_bindless_image_atomic_comp_swap:
|
||
case nir_intrinsic_bindless_image_atomic_inc_wrap:
|
||
case nir_intrinsic_bindless_image_atomic_dec_wrap:
|
||
result = visit_image_atomic(ctx, instr, true);
|
||
break;
|
||
case nir_intrinsic_image_deref_atomic_add:
|
||
case nir_intrinsic_image_deref_atomic_imin:
|
||
case nir_intrinsic_image_deref_atomic_umin:
|
||
case nir_intrinsic_image_deref_atomic_imax:
|
||
case nir_intrinsic_image_deref_atomic_umax:
|
||
case nir_intrinsic_image_deref_atomic_and:
|
||
case nir_intrinsic_image_deref_atomic_or:
|
||
case nir_intrinsic_image_deref_atomic_xor:
|
||
case nir_intrinsic_image_deref_atomic_exchange:
|
||
case nir_intrinsic_image_deref_atomic_comp_swap:
|
||
case nir_intrinsic_image_deref_atomic_inc_wrap:
|
||
case nir_intrinsic_image_deref_atomic_dec_wrap:
|
||
case nir_intrinsic_image_deref_atomic_fmin:
|
||
case nir_intrinsic_image_deref_atomic_fmax:
|
||
result = visit_image_atomic(ctx, instr, false);
|
||
break;
|
||
case nir_intrinsic_bindless_image_size:
|
||
result = visit_image_size(ctx, instr, true);
|
||
break;
|
||
case nir_intrinsic_image_deref_size:
|
||
result = visit_image_size(ctx, instr, false);
|
||
break;
|
||
case nir_intrinsic_shader_clock:
|
||
result = ac_build_shader_clock(&ctx->ac, nir_intrinsic_memory_scope(instr));
|
||
break;
|
||
case nir_intrinsic_discard:
|
||
case nir_intrinsic_discard_if:
|
||
case nir_intrinsic_terminate:
|
||
case nir_intrinsic_terminate_if:
|
||
emit_discard(ctx, instr);
|
||
break;
|
||
case nir_intrinsic_demote:
|
||
case nir_intrinsic_demote_if:
|
||
emit_demote(ctx, instr);
|
||
break;
|
||
case nir_intrinsic_memory_barrier:
|
||
case nir_intrinsic_group_memory_barrier:
|
||
case nir_intrinsic_memory_barrier_buffer:
|
||
case nir_intrinsic_memory_barrier_image:
|
||
case nir_intrinsic_memory_barrier_shared:
|
||
emit_membar(&ctx->ac, instr);
|
||
break;
|
||
case nir_intrinsic_scoped_barrier: {
|
||
assert(!(nir_intrinsic_memory_semantics(instr) &
|
||
(NIR_MEMORY_MAKE_AVAILABLE | NIR_MEMORY_MAKE_VISIBLE)));
|
||
|
||
nir_variable_mode modes = nir_intrinsic_memory_modes(instr);
|
||
|
||
unsigned wait_flags = 0;
|
||
if (modes & (nir_var_mem_global | nir_var_mem_ssbo | nir_var_image))
|
||
wait_flags |= AC_WAIT_VLOAD | AC_WAIT_VSTORE;
|
||
if (modes & nir_var_mem_shared)
|
||
wait_flags |= AC_WAIT_LGKM;
|
||
|
||
if (wait_flags)
|
||
ac_build_waitcnt(&ctx->ac, wait_flags);
|
||
|
||
if (nir_intrinsic_execution_scope(instr) == NIR_SCOPE_WORKGROUP)
|
||
ac_emit_barrier(&ctx->ac, ctx->stage);
|
||
break;
|
||
}
|
||
case nir_intrinsic_memory_barrier_tcs_patch:
|
||
break;
|
||
case nir_intrinsic_control_barrier:
|
||
ac_emit_barrier(&ctx->ac, ctx->stage);
|
||
break;
|
||
case nir_intrinsic_shared_atomic_add:
|
||
case nir_intrinsic_shared_atomic_imin:
|
||
case nir_intrinsic_shared_atomic_umin:
|
||
case nir_intrinsic_shared_atomic_imax:
|
||
case nir_intrinsic_shared_atomic_umax:
|
||
case nir_intrinsic_shared_atomic_and:
|
||
case nir_intrinsic_shared_atomic_or:
|
||
case nir_intrinsic_shared_atomic_xor:
|
||
case nir_intrinsic_shared_atomic_exchange:
|
||
case nir_intrinsic_shared_atomic_comp_swap:
|
||
case nir_intrinsic_shared_atomic_fadd:
|
||
case nir_intrinsic_shared_atomic_fmin:
|
||
case nir_intrinsic_shared_atomic_fmax: {
|
||
LLVMValueRef ptr = get_memory_ptr(ctx, instr->src[0], instr->src[1].ssa->bit_size, 0);
|
||
result = visit_var_atomic(ctx, instr, ptr, 1);
|
||
break;
|
||
}
|
||
case nir_intrinsic_deref_atomic_add:
|
||
case nir_intrinsic_deref_atomic_imin:
|
||
case nir_intrinsic_deref_atomic_umin:
|
||
case nir_intrinsic_deref_atomic_imax:
|
||
case nir_intrinsic_deref_atomic_umax:
|
||
case nir_intrinsic_deref_atomic_and:
|
||
case nir_intrinsic_deref_atomic_or:
|
||
case nir_intrinsic_deref_atomic_xor:
|
||
case nir_intrinsic_deref_atomic_exchange:
|
||
case nir_intrinsic_deref_atomic_comp_swap:
|
||
case nir_intrinsic_deref_atomic_fadd: {
|
||
LLVMValueRef ptr = get_src(ctx, instr->src[0]);
|
||
result = visit_var_atomic(ctx, instr, ptr, 1);
|
||
break;
|
||
}
|
||
case nir_intrinsic_load_barycentric_pixel:
|
||
result = barycentric_center(ctx, nir_intrinsic_interp_mode(instr));
|
||
break;
|
||
case nir_intrinsic_load_barycentric_centroid:
|
||
result = barycentric_centroid(ctx, nir_intrinsic_interp_mode(instr));
|
||
break;
|
||
case nir_intrinsic_load_barycentric_sample:
|
||
result = barycentric_sample(ctx, nir_intrinsic_interp_mode(instr));
|
||
break;
|
||
case nir_intrinsic_load_barycentric_model:
|
||
result = barycentric_model(ctx);
|
||
break;
|
||
case nir_intrinsic_load_barycentric_at_offset: {
|
||
LLVMValueRef offset = ac_to_float(&ctx->ac, get_src(ctx, instr->src[0]));
|
||
result = barycentric_offset(ctx, nir_intrinsic_interp_mode(instr), offset);
|
||
break;
|
||
}
|
||
case nir_intrinsic_load_barycentric_at_sample: {
|
||
LLVMValueRef sample_id = get_src(ctx, instr->src[0]);
|
||
result = barycentric_at_sample(ctx, nir_intrinsic_interp_mode(instr), sample_id);
|
||
break;
|
||
}
|
||
case nir_intrinsic_load_interpolated_input: {
|
||
/* We assume any indirect loads have been lowered away */
|
||
ASSERTED nir_const_value *offset = nir_src_as_const_value(instr->src[1]);
|
||
assert(offset);
|
||
assert(offset[0].i32 == 0);
|
||
|
||
LLVMValueRef interp_param = get_src(ctx, instr->src[0]);
|
||
unsigned index = nir_intrinsic_base(instr);
|
||
unsigned component = nir_intrinsic_component(instr);
|
||
result = load_interpolated_input(ctx, interp_param, index, component,
|
||
instr->dest.ssa.num_components, instr->dest.ssa.bit_size,
|
||
nir_intrinsic_io_semantics(instr).high_16bits);
|
||
break;
|
||
}
|
||
case nir_intrinsic_emit_vertex:
|
||
ctx->abi->emit_vertex(ctx->abi, nir_intrinsic_stream_id(instr), ctx->abi->outputs);
|
||
break;
|
||
case nir_intrinsic_emit_vertex_with_counter: {
|
||
unsigned stream = nir_intrinsic_stream_id(instr);
|
||
LLVMValueRef next_vertex = get_src(ctx, instr->src[0]);
|
||
ctx->abi->emit_vertex_with_counter(ctx->abi, stream, next_vertex, ctx->abi->outputs);
|
||
break;
|
||
}
|
||
case nir_intrinsic_end_primitive:
|
||
case nir_intrinsic_end_primitive_with_counter:
|
||
ctx->abi->emit_primitive(ctx->abi, nir_intrinsic_stream_id(instr));
|
||
break;
|
||
case nir_intrinsic_load_tess_coord: {
|
||
LLVMValueRef coord[] = {
|
||
ctx->tes_u_replaced ? ctx->tes_u_replaced : ac_get_arg(&ctx->ac, ctx->args->tes_u),
|
||
ctx->tes_v_replaced ? ctx->tes_v_replaced : ac_get_arg(&ctx->ac, ctx->args->tes_v),
|
||
ctx->ac.f32_0,
|
||
};
|
||
|
||
/* For triangles, the vector should be (u, v, 1-u-v). */
|
||
if (ctx->info->tess._primitive_mode == TESS_PRIMITIVE_TRIANGLES) {
|
||
coord[2] = LLVMBuildFSub(ctx->ac.builder, ctx->ac.f32_1,
|
||
LLVMBuildFAdd(ctx->ac.builder, coord[0], coord[1], ""), "");
|
||
}
|
||
result = ac_build_gather_values(&ctx->ac, coord, 3);
|
||
break;
|
||
}
|
||
case nir_intrinsic_load_tess_level_outer:
|
||
result = ctx->abi->load_tess_level(ctx->abi, VARYING_SLOT_TESS_LEVEL_OUTER, false);
|
||
break;
|
||
case nir_intrinsic_load_tess_level_inner:
|
||
result = ctx->abi->load_tess_level(ctx->abi, VARYING_SLOT_TESS_LEVEL_INNER, false);
|
||
break;
|
||
case nir_intrinsic_load_tess_level_outer_default:
|
||
result = ctx->abi->load_tess_level(ctx->abi, VARYING_SLOT_TESS_LEVEL_OUTER, true);
|
||
break;
|
||
case nir_intrinsic_load_tess_level_inner_default:
|
||
result = ctx->abi->load_tess_level(ctx->abi, VARYING_SLOT_TESS_LEVEL_INNER, true);
|
||
break;
|
||
case nir_intrinsic_load_patch_vertices_in:
|
||
result = ctx->abi->load_patch_vertices_in(ctx->abi);
|
||
break;
|
||
case nir_intrinsic_load_tess_rel_patch_id_amd:
|
||
if (ctx->stage == MESA_SHADER_TESS_CTRL)
|
||
result = ac_unpack_param(&ctx->ac, ac_get_arg(&ctx->ac, ctx->args->tcs_rel_ids), 0, 8);
|
||
else if (ctx->stage == MESA_SHADER_TESS_EVAL)
|
||
result = ctx->tes_rel_patch_id_replaced ? ctx->tes_rel_patch_id_replaced
|
||
: ac_get_arg(&ctx->ac, ctx->args->tes_rel_patch_id);
|
||
else
|
||
unreachable("tess_rel_patch_id_amd is only supported by tessellation shaders");
|
||
break;
|
||
case nir_intrinsic_load_ring_tess_factors_amd:
|
||
result = ctx->abi->load_ring_tess_factors(ctx->abi);
|
||
break;
|
||
case nir_intrinsic_load_ring_tess_factors_offset_amd:
|
||
result = ac_get_arg(&ctx->ac, ctx->args->tcs_factor_offset);
|
||
break;
|
||
case nir_intrinsic_load_ring_tess_offchip_amd:
|
||
result = ctx->abi->load_ring_tess_offchip(ctx->abi);
|
||
break;
|
||
case nir_intrinsic_load_ring_tess_offchip_offset_amd:
|
||
result = ac_get_arg(&ctx->ac, ctx->args->tess_offchip_offset);
|
||
break;
|
||
case nir_intrinsic_load_ring_esgs_amd:
|
||
result = ctx->abi->load_ring_esgs(ctx->abi);
|
||
break;
|
||
case nir_intrinsic_load_ring_es2gs_offset_amd:
|
||
result = ac_get_arg(&ctx->ac, ctx->args->es2gs_offset);
|
||
break;
|
||
case nir_intrinsic_load_gs_vertex_offset_amd:
|
||
result = ac_get_arg(&ctx->ac, ctx->args->gs_vtx_offset[nir_intrinsic_base(instr)]);
|
||
break;
|
||
case nir_intrinsic_vote_all: {
|
||
result = ac_build_vote_all(&ctx->ac, get_src(ctx, instr->src[0]));
|
||
break;
|
||
}
|
||
case nir_intrinsic_vote_any: {
|
||
result = ac_build_vote_any(&ctx->ac, get_src(ctx, instr->src[0]));
|
||
break;
|
||
}
|
||
case nir_intrinsic_shuffle:
|
||
if (ctx->ac.chip_class == GFX8 || ctx->ac.chip_class == GFX9 ||
|
||
(ctx->ac.chip_class >= GFX10 && ctx->ac.wave_size == 32)) {
|
||
result =
|
||
ac_build_shuffle(&ctx->ac, get_src(ctx, instr->src[0]), get_src(ctx, instr->src[1]));
|
||
} else {
|
||
LLVMValueRef src = get_src(ctx, instr->src[0]);
|
||
LLVMValueRef index = get_src(ctx, instr->src[1]);
|
||
LLVMTypeRef type = LLVMTypeOf(src);
|
||
struct waterfall_context wctx;
|
||
LLVMValueRef index_val;
|
||
|
||
index_val = enter_waterfall(ctx, &wctx, index, true);
|
||
|
||
src = LLVMBuildZExt(ctx->ac.builder, src, ctx->ac.i32, "");
|
||
|
||
result = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.readlane", ctx->ac.i32,
|
||
(LLVMValueRef[]){src, index_val}, 2,
|
||
AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT);
|
||
|
||
result = LLVMBuildTrunc(ctx->ac.builder, result, type, "");
|
||
|
||
result = exit_waterfall(ctx, &wctx, result);
|
||
}
|
||
break;
|
||
case nir_intrinsic_reduce:
|
||
result = ac_build_reduce(&ctx->ac, get_src(ctx, instr->src[0]), instr->const_index[0],
|
||
instr->const_index[1]);
|
||
break;
|
||
case nir_intrinsic_inclusive_scan:
|
||
result =
|
||
ac_build_inclusive_scan(&ctx->ac, get_src(ctx, instr->src[0]), instr->const_index[0]);
|
||
break;
|
||
case nir_intrinsic_exclusive_scan:
|
||
result =
|
||
ac_build_exclusive_scan(&ctx->ac, get_src(ctx, instr->src[0]), instr->const_index[0]);
|
||
break;
|
||
case nir_intrinsic_quad_broadcast: {
|
||
unsigned lane = nir_src_as_uint(instr->src[1]);
|
||
result = ac_build_quad_swizzle(&ctx->ac, get_src(ctx, instr->src[0]), lane, lane, lane, lane);
|
||
break;
|
||
}
|
||
case nir_intrinsic_quad_swap_horizontal:
|
||
result = ac_build_quad_swizzle(&ctx->ac, get_src(ctx, instr->src[0]), 1, 0, 3, 2);
|
||
break;
|
||
case nir_intrinsic_quad_swap_vertical:
|
||
result = ac_build_quad_swizzle(&ctx->ac, get_src(ctx, instr->src[0]), 2, 3, 0, 1);
|
||
break;
|
||
case nir_intrinsic_quad_swap_diagonal:
|
||
result = ac_build_quad_swizzle(&ctx->ac, get_src(ctx, instr->src[0]), 3, 2, 1, 0);
|
||
break;
|
||
case nir_intrinsic_quad_swizzle_amd: {
|
||
uint32_t mask = nir_intrinsic_swizzle_mask(instr);
|
||
result = ac_build_quad_swizzle(&ctx->ac, get_src(ctx, instr->src[0]), mask & 0x3,
|
||
(mask >> 2) & 0x3, (mask >> 4) & 0x3, (mask >> 6) & 0x3);
|
||
break;
|
||
}
|
||
case nir_intrinsic_masked_swizzle_amd: {
|
||
uint32_t mask = nir_intrinsic_swizzle_mask(instr);
|
||
result = ac_build_ds_swizzle(&ctx->ac, get_src(ctx, instr->src[0]), mask);
|
||
break;
|
||
}
|
||
case nir_intrinsic_write_invocation_amd:
|
||
result = ac_build_writelane(&ctx->ac, get_src(ctx, instr->src[0]),
|
||
get_src(ctx, instr->src[1]), get_src(ctx, instr->src[2]));
|
||
break;
|
||
case nir_intrinsic_mbcnt_amd:
|
||
result = ac_build_mbcnt_add(&ctx->ac, get_src(ctx, instr->src[0]), get_src(ctx, instr->src[1]));
|
||
break;
|
||
case nir_intrinsic_load_scratch: {
|
||
LLVMValueRef offset = get_src(ctx, instr->src[0]);
|
||
LLVMValueRef ptr = ac_build_gep0(&ctx->ac, ctx->scratch, offset);
|
||
LLVMTypeRef comp_type = LLVMIntTypeInContext(ctx->ac.context, instr->dest.ssa.bit_size);
|
||
LLVMTypeRef vec_type = instr->dest.ssa.num_components == 1
|
||
? comp_type
|
||
: LLVMVectorType(comp_type, instr->dest.ssa.num_components);
|
||
unsigned addr_space = LLVMGetPointerAddressSpace(LLVMTypeOf(ptr));
|
||
ptr = LLVMBuildBitCast(ctx->ac.builder, ptr, LLVMPointerType(vec_type, addr_space), "");
|
||
result = LLVMBuildLoad2(ctx->ac.builder, vec_type, ptr, "");
|
||
break;
|
||
}
|
||
case nir_intrinsic_store_scratch: {
|
||
LLVMValueRef offset = get_src(ctx, instr->src[1]);
|
||
LLVMValueRef ptr = ac_build_gep0(&ctx->ac, ctx->scratch, offset);
|
||
LLVMTypeRef comp_type = LLVMIntTypeInContext(ctx->ac.context, instr->src[0].ssa->bit_size);
|
||
unsigned addr_space = LLVMGetPointerAddressSpace(LLVMTypeOf(ptr));
|
||
ptr = LLVMBuildBitCast(ctx->ac.builder, ptr, LLVMPointerType(comp_type, addr_space), "");
|
||
LLVMValueRef src = get_src(ctx, instr->src[0]);
|
||
unsigned wrmask = nir_intrinsic_write_mask(instr);
|
||
while (wrmask) {
|
||
int start, count;
|
||
u_bit_scan_consecutive_range(&wrmask, &start, &count);
|
||
|
||
LLVMValueRef offset = LLVMConstInt(ctx->ac.i32, start, false);
|
||
LLVMValueRef offset_ptr = LLVMBuildGEP2(ctx->ac.builder, comp_type, ptr, &offset, 1, "");
|
||
LLVMTypeRef vec_type = count == 1 ? comp_type : LLVMVectorType(comp_type, count);
|
||
offset_ptr = LLVMBuildBitCast(ctx->ac.builder, offset_ptr,
|
||
LLVMPointerType(vec_type, addr_space), "");
|
||
LLVMValueRef offset_src = ac_extract_components(&ctx->ac, src, start, count);
|
||
LLVMBuildStore(ctx->ac.builder, offset_src, offset_ptr);
|
||
}
|
||
break;
|
||
}
|
||
case nir_intrinsic_load_constant: {
|
||
unsigned base = nir_intrinsic_base(instr);
|
||
unsigned range = nir_intrinsic_range(instr);
|
||
|
||
LLVMValueRef offset = get_src(ctx, instr->src[0]);
|
||
offset = LLVMBuildAdd(ctx->ac.builder, offset, LLVMConstInt(ctx->ac.i32, base, false), "");
|
||
|
||
/* Clamp the offset to avoid out-of-bound access because global
|
||
* instructions can't handle them.
|
||
*/
|
||
LLVMValueRef size = LLVMConstInt(ctx->ac.i32, base + range, false);
|
||
LLVMValueRef cond = LLVMBuildICmp(ctx->ac.builder, LLVMIntULT, offset, size, "");
|
||
offset = LLVMBuildSelect(ctx->ac.builder, cond, offset, size, "");
|
||
|
||
LLVMValueRef ptr = ac_build_gep0(&ctx->ac, ctx->constant_data, offset);
|
||
LLVMTypeRef comp_type = LLVMIntTypeInContext(ctx->ac.context, instr->dest.ssa.bit_size);
|
||
LLVMTypeRef vec_type = instr->dest.ssa.num_components == 1
|
||
? comp_type
|
||
: LLVMVectorType(comp_type, instr->dest.ssa.num_components);
|
||
unsigned addr_space = LLVMGetPointerAddressSpace(LLVMTypeOf(ptr));
|
||
ptr = LLVMBuildBitCast(ctx->ac.builder, ptr, LLVMPointerType(vec_type, addr_space), "");
|
||
result = LLVMBuildLoad2(ctx->ac.builder, vec_type, ptr, "");
|
||
break;
|
||
}
|
||
case nir_intrinsic_set_vertex_and_primitive_count:
|
||
/* Currently ignored. */
|
||
break;
|
||
case nir_intrinsic_load_buffer_amd: {
|
||
LLVMValueRef descriptor = get_src(ctx, instr->src[0]);
|
||
LLVMValueRef addr_voffset = get_src(ctx, instr->src[1]);
|
||
LLVMValueRef addr_soffset = get_src(ctx, instr->src[2]);
|
||
unsigned num_components = instr->dest.ssa.num_components;
|
||
unsigned const_offset = nir_intrinsic_base(instr);
|
||
bool swizzled = nir_intrinsic_is_swizzled(instr);
|
||
bool reorder = nir_intrinsic_can_reorder(instr);
|
||
bool slc = nir_intrinsic_slc_amd(instr);
|
||
|
||
enum ac_image_cache_policy cache_policy = ac_glc;
|
||
if (swizzled)
|
||
cache_policy |= ac_swizzled;
|
||
if (slc)
|
||
cache_policy |= ac_slc;
|
||
if (ctx->ac.chip_class >= GFX10)
|
||
cache_policy |= ac_dlc;
|
||
|
||
LLVMTypeRef channel_type;
|
||
if (instr->dest.ssa.bit_size == 8)
|
||
channel_type = ctx->ac.i8;
|
||
else if (instr->dest.ssa.bit_size == 16)
|
||
channel_type = ctx->ac.i16;
|
||
else if (instr->dest.ssa.bit_size == 32)
|
||
channel_type = ctx->ac.i32;
|
||
else if (instr->dest.ssa.bit_size == 64)
|
||
channel_type = ctx->ac.i64;
|
||
else if (instr->dest.ssa.bit_size == 128)
|
||
channel_type = ctx->ac.i128;
|
||
else
|
||
unreachable("Unsupported channel type for load_buffer_amd");
|
||
|
||
result = ac_build_buffer_load(&ctx->ac, descriptor, num_components, NULL,
|
||
addr_voffset, addr_soffset, const_offset,
|
||
channel_type, cache_policy, reorder, false);
|
||
result = ac_to_integer(&ctx->ac, ac_trim_vector(&ctx->ac, result, num_components));
|
||
break;
|
||
}
|
||
case nir_intrinsic_store_buffer_amd: {
|
||
LLVMValueRef store_data = get_src(ctx, instr->src[0]);
|
||
LLVMValueRef descriptor = get_src(ctx, instr->src[1]);
|
||
LLVMValueRef addr_voffset = get_src(ctx, instr->src[2]);
|
||
LLVMValueRef addr_soffset = get_src(ctx, instr->src[3]);
|
||
unsigned const_offset = nir_intrinsic_base(instr);
|
||
bool swizzled = nir_intrinsic_is_swizzled(instr);
|
||
bool slc = nir_intrinsic_slc_amd(instr);
|
||
|
||
enum ac_image_cache_policy cache_policy = ac_glc;
|
||
if (swizzled)
|
||
cache_policy |= ac_swizzled;
|
||
if (slc)
|
||
cache_policy |= ac_slc;
|
||
|
||
ac_build_buffer_store_dword(&ctx->ac, descriptor, store_data,
|
||
NULL, addr_voffset, addr_soffset, const_offset,
|
||
cache_policy);
|
||
break;
|
||
}
|
||
case nir_intrinsic_load_packed_passthrough_primitive_amd:
|
||
result = ac_get_arg(&ctx->ac, ctx->args->gs_vtx_offset[0]);
|
||
break;
|
||
case nir_intrinsic_load_initial_edgeflags_amd:
|
||
if (ctx->stage == MESA_SHADER_VERTEX && !ctx->info->vs.blit_sgprs_amd)
|
||
result = ac_pack_edgeflags_for_export(&ctx->ac, ctx->args);
|
||
else
|
||
result = ctx->ac.i32_0;
|
||
break;
|
||
case nir_intrinsic_has_input_vertex_amd: {
|
||
LLVMValueRef num =
|
||
ac_unpack_param(&ctx->ac, ac_get_arg(&ctx->ac, ctx->args->merged_wave_info), 0, 8);
|
||
result = LLVMBuildICmp(ctx->ac.builder, LLVMIntULT, ac_get_thread_id(&ctx->ac), num, "");
|
||
break;
|
||
}
|
||
case nir_intrinsic_has_input_primitive_amd: {
|
||
LLVMValueRef num =
|
||
ac_unpack_param(&ctx->ac, ac_get_arg(&ctx->ac, ctx->args->merged_wave_info), 8, 8);
|
||
result = LLVMBuildICmp(ctx->ac.builder, LLVMIntULT, ac_get_thread_id(&ctx->ac), num, "");
|
||
break;
|
||
}
|
||
case nir_intrinsic_load_workgroup_num_input_vertices_amd:
|
||
result = ac_unpack_param(&ctx->ac, ac_get_arg(&ctx->ac, ctx->args->gs_tg_info), 12, 9);
|
||
break;
|
||
case nir_intrinsic_load_workgroup_num_input_primitives_amd:
|
||
result = ac_unpack_param(&ctx->ac, ac_get_arg(&ctx->ac, ctx->args->gs_tg_info), 22, 9);
|
||
break;
|
||
case nir_intrinsic_alloc_vertices_and_primitives_amd:
|
||
/* The caller should only call this conditionally for wave 0, so assume that the current
|
||
* wave is always wave 0.
|
||
*/
|
||
ac_build_sendmsg_gs_alloc_req(&ctx->ac, ctx->ac.i32_0,
|
||
get_src(ctx, instr->src[0]),
|
||
get_src(ctx, instr->src[1]));
|
||
break;
|
||
case nir_intrinsic_overwrite_vs_arguments_amd:
|
||
ctx->vertex_id_replaced = get_src(ctx, instr->src[0]);
|
||
ctx->instance_id_replaced = get_src(ctx, instr->src[1]);
|
||
break;
|
||
case nir_intrinsic_overwrite_tes_arguments_amd:
|
||
ctx->tes_u_replaced = get_src(ctx, instr->src[0]);
|
||
ctx->tes_v_replaced = get_src(ctx, instr->src[1]);
|
||
ctx->tes_rel_patch_id_replaced = get_src(ctx, instr->src[2]);
|
||
ctx->tes_patch_id_replaced = get_src(ctx, instr->src[3]);
|
||
break;
|
||
case nir_intrinsic_export_primitive_amd: {
|
||
struct ac_ngg_prim prim = {0};
|
||
prim.passthrough = get_src(ctx, instr->src[0]);
|
||
ac_build_export_prim(&ctx->ac, &prim);
|
||
break;
|
||
}
|
||
case nir_intrinsic_export_vertex_amd:
|
||
ctx->abi->export_vertex(ctx->abi);
|
||
break;
|
||
case nir_intrinsic_elect:
|
||
result = LLVMBuildICmp(ctx->ac.builder, LLVMIntEQ, visit_first_invocation(ctx),
|
||
ac_get_thread_id(&ctx->ac), "");
|
||
break;
|
||
case nir_intrinsic_byte_permute_amd:
|
||
if (LLVM_VERSION_MAJOR < 13) {
|
||
assert("unimplemented byte_permute, LLVM 12 doesn't have amdgcn.perm");
|
||
break;
|
||
}
|
||
result = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.perm", ctx->ac.i32,
|
||
(LLVMValueRef[]){get_src(ctx, instr->src[0]),
|
||
get_src(ctx, instr->src[1]),
|
||
get_src(ctx, instr->src[2])},
|
||
3, AC_FUNC_ATTR_READNONE);
|
||
break;
|
||
case nir_intrinsic_lane_permute_16_amd:
|
||
result = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.permlane16", ctx->ac.i32,
|
||
(LLVMValueRef[]){get_src(ctx, instr->src[0]),
|
||
get_src(ctx, instr->src[0]),
|
||
get_src(ctx, instr->src[1]),
|
||
get_src(ctx, instr->src[2]),
|
||
ctx->ac.i1false,
|
||
ctx->ac.i1false},
|
||
6, AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT);
|
||
break;
|
||
case nir_intrinsic_load_force_vrs_rates_amd:
|
||
result = ac_get_arg(&ctx->ac, ctx->args->force_vrs_rates);
|
||
break;
|
||
case nir_intrinsic_load_scalar_arg_amd:
|
||
case nir_intrinsic_load_vector_arg_amd: {
|
||
assert(nir_intrinsic_base(instr) < AC_MAX_ARGS);
|
||
result = ac_to_integer(&ctx->ac, LLVMGetParam(ctx->main_function, nir_intrinsic_base(instr)));
|
||
break;
|
||
}
|
||
case nir_intrinsic_load_smem_amd: {
|
||
LLVMValueRef base = get_src(ctx, instr->src[0]);
|
||
LLVMValueRef offset = get_src(ctx, instr->src[1]);
|
||
|
||
LLVMTypeRef result_type = get_def_type(ctx, &instr->dest.ssa);
|
||
LLVMTypeRef ptr_type = LLVMPointerType(result_type, AC_ADDR_SPACE_CONST);
|
||
LLVMTypeRef byte_ptr_type = LLVMPointerType(ctx->ac.i8, AC_ADDR_SPACE_CONST);
|
||
|
||
LLVMValueRef addr = LLVMBuildIntToPtr(ctx->ac.builder, base, byte_ptr_type, "");
|
||
addr = LLVMBuildGEP2(ctx->ac.builder, ctx->ac.i8, addr, &offset, 1, "");
|
||
addr = LLVMBuildBitCast(ctx->ac.builder, addr, ptr_type, "");
|
||
|
||
LLVMSetMetadata(addr, ctx->ac.uniform_md_kind, ctx->ac.empty_md);
|
||
result = LLVMBuildLoad2(ctx->ac.builder, result_type, addr, "");
|
||
LLVMSetMetadata(result, ctx->ac.invariant_load_md_kind, ctx->ac.empty_md);
|
||
break;
|
||
}
|
||
default:
|
||
fprintf(stderr, "Unknown intrinsic: ");
|
||
nir_print_instr(&instr->instr, stderr);
|
||
fprintf(stderr, "\n");
|
||
abort();
|
||
break;
|
||
}
|
||
if (result) {
|
||
ctx->ssa_defs[instr->dest.ssa.index] = result;
|
||
}
|
||
}
|
||
|
||
static LLVMValueRef get_bindless_index_from_uniform(struct ac_nir_context *ctx, unsigned base_index,
|
||
unsigned constant_index,
|
||
LLVMValueRef dynamic_index)
|
||
{
|
||
LLVMValueRef offset = LLVMConstInt(ctx->ac.i32, base_index * 4, 0);
|
||
LLVMValueRef index = LLVMBuildAdd(ctx->ac.builder, dynamic_index,
|
||
LLVMConstInt(ctx->ac.i32, constant_index, 0), "");
|
||
|
||
/* Bindless uniforms are 64bit so multiple index by 8 */
|
||
index = LLVMBuildMul(ctx->ac.builder, index, LLVMConstInt(ctx->ac.i32, 8, 0), "");
|
||
offset = LLVMBuildAdd(ctx->ac.builder, offset, index, "");
|
||
|
||
LLVMValueRef ubo_index = ctx->abi->load_ubo(ctx->abi, ctx->ac.i32_0);
|
||
|
||
LLVMValueRef ret =
|
||
ac_build_buffer_load(&ctx->ac, ubo_index, 1, NULL, offset, NULL, 0, ctx->ac.f32, 0, true, true);
|
||
|
||
return LLVMBuildBitCast(ctx->ac.builder, ret, ctx->ac.i32, "");
|
||
}
|
||
|
||
struct sampler_desc_address {
|
||
unsigned descriptor_set;
|
||
unsigned base_index; /* binding in vulkan */
|
||
unsigned constant_index;
|
||
LLVMValueRef dynamic_index;
|
||
bool image;
|
||
bool bindless;
|
||
};
|
||
|
||
static struct sampler_desc_address get_sampler_desc_internal(struct ac_nir_context *ctx,
|
||
nir_deref_instr *deref_instr,
|
||
const nir_instr *instr, bool image)
|
||
{
|
||
LLVMValueRef index = NULL;
|
||
unsigned constant_index = 0;
|
||
unsigned descriptor_set;
|
||
unsigned base_index;
|
||
bool bindless = false;
|
||
|
||
if (!deref_instr) {
|
||
descriptor_set = 0;
|
||
if (image) {
|
||
nir_intrinsic_instr *img_instr = nir_instr_as_intrinsic(instr);
|
||
base_index = 0;
|
||
bindless = true;
|
||
index = get_src(ctx, img_instr->src[0]);
|
||
} else {
|
||
nir_tex_instr *tex_instr = nir_instr_as_tex(instr);
|
||
int sampSrcIdx = nir_tex_instr_src_index(tex_instr, nir_tex_src_sampler_handle);
|
||
if (sampSrcIdx != -1) {
|
||
base_index = 0;
|
||
bindless = true;
|
||
index = get_src(ctx, tex_instr->src[sampSrcIdx].src);
|
||
} else {
|
||
assert(tex_instr && !image);
|
||
base_index = tex_instr->sampler_index;
|
||
}
|
||
}
|
||
} else {
|
||
while (deref_instr->deref_type != nir_deref_type_var) {
|
||
if (deref_instr->deref_type == nir_deref_type_array) {
|
||
unsigned array_size = glsl_get_aoa_size(deref_instr->type);
|
||
if (!array_size)
|
||
array_size = 1;
|
||
|
||
if (nir_src_is_const(deref_instr->arr.index)) {
|
||
constant_index += array_size * nir_src_as_uint(deref_instr->arr.index);
|
||
} else {
|
||
LLVMValueRef indirect = get_src(ctx, deref_instr->arr.index);
|
||
|
||
indirect = LLVMBuildMul(ctx->ac.builder, indirect,
|
||
LLVMConstInt(ctx->ac.i32, array_size, false), "");
|
||
|
||
if (!index)
|
||
index = indirect;
|
||
else
|
||
index = LLVMBuildAdd(ctx->ac.builder, index, indirect, "");
|
||
}
|
||
|
||
deref_instr = nir_src_as_deref(deref_instr->parent);
|
||
} else if (deref_instr->deref_type == nir_deref_type_struct) {
|
||
unsigned sidx = deref_instr->strct.index;
|
||
deref_instr = nir_src_as_deref(deref_instr->parent);
|
||
constant_index += glsl_get_struct_location_offset(deref_instr->type, sidx);
|
||
} else {
|
||
unreachable("Unsupported deref type");
|
||
}
|
||
}
|
||
descriptor_set = deref_instr->var->data.descriptor_set;
|
||
|
||
if (deref_instr->var->data.bindless) {
|
||
/* For now just assert on unhandled variable types */
|
||
assert(deref_instr->var->data.mode == nir_var_uniform);
|
||
|
||
base_index = deref_instr->var->data.driver_location;
|
||
bindless = true;
|
||
|
||
index = index ? index : ctx->ac.i32_0;
|
||
index = get_bindless_index_from_uniform(ctx, base_index, constant_index, index);
|
||
} else
|
||
base_index = deref_instr->var->data.binding;
|
||
}
|
||
return (struct sampler_desc_address){
|
||
.descriptor_set = descriptor_set,
|
||
.base_index = base_index,
|
||
.constant_index = constant_index,
|
||
.dynamic_index = index,
|
||
.image = image,
|
||
.bindless = bindless,
|
||
};
|
||
}
|
||
|
||
/* Extract any possibly divergent index into a separate value that can be fed
|
||
* into get_sampler_desc with the same arguments. */
|
||
static LLVMValueRef get_sampler_desc_index(struct ac_nir_context *ctx, nir_deref_instr *deref_instr,
|
||
const nir_instr *instr, bool image)
|
||
{
|
||
struct sampler_desc_address addr = get_sampler_desc_internal(ctx, deref_instr, instr, image);
|
||
return addr.dynamic_index;
|
||
}
|
||
|
||
static LLVMValueRef get_sampler_desc(struct ac_nir_context *ctx, nir_deref_instr *deref_instr,
|
||
enum ac_descriptor_type desc_type, const nir_instr *instr,
|
||
LLVMValueRef index, bool image, bool write)
|
||
{
|
||
struct sampler_desc_address addr = get_sampler_desc_internal(ctx, deref_instr, instr, image);
|
||
return ctx->abi->load_sampler_desc(ctx->abi, addr.descriptor_set, addr.base_index,
|
||
addr.constant_index, index, desc_type, addr.image, write,
|
||
addr.bindless);
|
||
}
|
||
|
||
/* Disable anisotropic filtering if BASE_LEVEL == LAST_LEVEL.
|
||
*
|
||
* GFX6-GFX7:
|
||
* If BASE_LEVEL == LAST_LEVEL, the shader must disable anisotropic
|
||
* filtering manually. The driver sets img7 to a mask clearing
|
||
* MAX_ANISO_RATIO if BASE_LEVEL == LAST_LEVEL. The shader must do:
|
||
* s_and_b32 samp0, samp0, img7
|
||
*
|
||
* GFX8:
|
||
* The ANISO_OVERRIDE sampler field enables this fix in TA.
|
||
*/
|
||
static LLVMValueRef sici_fix_sampler_aniso(struct ac_nir_context *ctx, LLVMValueRef res,
|
||
LLVMValueRef samp)
|
||
{
|
||
LLVMBuilderRef builder = ctx->ac.builder;
|
||
LLVMValueRef img7, samp0;
|
||
|
||
if (ctx->ac.chip_class >= GFX8)
|
||
return samp;
|
||
|
||
img7 = LLVMBuildExtractElement(builder, res, LLVMConstInt(ctx->ac.i32, 7, 0), "");
|
||
samp0 = LLVMBuildExtractElement(builder, samp, LLVMConstInt(ctx->ac.i32, 0, 0), "");
|
||
samp0 = LLVMBuildAnd(builder, samp0, img7, "");
|
||
return LLVMBuildInsertElement(builder, samp, samp0, LLVMConstInt(ctx->ac.i32, 0, 0), "");
|
||
}
|
||
|
||
static void tex_fetch_ptrs(struct ac_nir_context *ctx, nir_tex_instr *instr,
|
||
struct waterfall_context *wctx, LLVMValueRef *res_ptr,
|
||
LLVMValueRef *samp_ptr, LLVMValueRef *fmask_ptr)
|
||
{
|
||
LLVMValueRef texture_dynamic_handle = NULL;
|
||
LLVMValueRef sampler_dynamic_handle = NULL;
|
||
nir_deref_instr *texture_deref_instr = NULL;
|
||
nir_deref_instr *sampler_deref_instr = NULL;
|
||
int plane = -1;
|
||
|
||
*res_ptr = NULL;
|
||
*samp_ptr = NULL;
|
||
*fmask_ptr = NULL;
|
||
for (unsigned i = 0; i < instr->num_srcs; i++) {
|
||
switch (instr->src[i].src_type) {
|
||
case nir_tex_src_texture_deref:
|
||
texture_deref_instr = nir_src_as_deref(instr->src[i].src);
|
||
break;
|
||
case nir_tex_src_sampler_deref:
|
||
sampler_deref_instr = nir_src_as_deref(instr->src[i].src);
|
||
break;
|
||
case nir_tex_src_texture_handle:
|
||
case nir_tex_src_sampler_handle: {
|
||
LLVMValueRef val = get_src(ctx, instr->src[i].src);
|
||
if (LLVMGetTypeKind(LLVMTypeOf(val)) == LLVMVectorTypeKind) {
|
||
if (instr->src[i].src_type == nir_tex_src_texture_handle)
|
||
*res_ptr = val;
|
||
else
|
||
*samp_ptr = val;
|
||
} else {
|
||
if (instr->src[i].src_type == nir_tex_src_texture_handle)
|
||
texture_dynamic_handle = val;
|
||
else
|
||
sampler_dynamic_handle = val;
|
||
}
|
||
break;
|
||
}
|
||
case nir_tex_src_plane:
|
||
plane = nir_src_as_int(instr->src[i].src);
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (*res_ptr) {
|
||
/* descriptors given through nir_tex_src_{texture,sampler}_handle */
|
||
return;
|
||
}
|
||
|
||
enum ac_descriptor_type main_descriptor =
|
||
instr->sampler_dim == GLSL_SAMPLER_DIM_BUF ? AC_DESC_BUFFER : AC_DESC_IMAGE;
|
||
|
||
if (plane >= 0) {
|
||
assert(instr->op != nir_texop_txf_ms && instr->op != nir_texop_samples_identical);
|
||
assert(instr->sampler_dim != GLSL_SAMPLER_DIM_BUF);
|
||
|
||
main_descriptor = AC_DESC_PLANE_0 + plane;
|
||
}
|
||
|
||
if (instr->op == nir_texop_fragment_mask_fetch_amd || instr->op == nir_texop_samples_identical) {
|
||
/* The fragment mask is fetched from the compressed
|
||
* multisampled surface.
|
||
*/
|
||
main_descriptor = AC_DESC_FMASK;
|
||
}
|
||
|
||
if (texture_dynamic_handle) {
|
||
/* descriptor handles given through nir_tex_src_{texture,sampler}_handle */
|
||
if (instr->texture_non_uniform)
|
||
texture_dynamic_handle = enter_waterfall(ctx, &wctx[0], texture_dynamic_handle, true);
|
||
|
||
if (instr->sampler_non_uniform)
|
||
sampler_dynamic_handle = enter_waterfall(ctx, &wctx[1], sampler_dynamic_handle, true);
|
||
|
||
*res_ptr = ctx->abi->load_sampler_desc(ctx->abi, 0, 0, 0, texture_dynamic_handle,
|
||
main_descriptor, false, false, true);
|
||
|
||
if (samp_ptr)
|
||
*samp_ptr = ctx->abi->load_sampler_desc(ctx->abi, 0, 0, 0, sampler_dynamic_handle,
|
||
AC_DESC_SAMPLER, false, false, true);
|
||
return;
|
||
}
|
||
|
||
LLVMValueRef texture_dynamic_index =
|
||
get_sampler_desc_index(ctx, texture_deref_instr, &instr->instr, false);
|
||
if (!sampler_deref_instr)
|
||
sampler_deref_instr = texture_deref_instr;
|
||
|
||
LLVMValueRef sampler_dynamic_index =
|
||
get_sampler_desc_index(ctx, sampler_deref_instr, &instr->instr, false);
|
||
if (instr->texture_non_uniform)
|
||
texture_dynamic_index = enter_waterfall(ctx, wctx + 0, texture_dynamic_index, true);
|
||
|
||
if (instr->sampler_non_uniform)
|
||
sampler_dynamic_index = enter_waterfall(ctx, wctx + 1, sampler_dynamic_index, true);
|
||
|
||
*res_ptr = get_sampler_desc(ctx, texture_deref_instr, main_descriptor, &instr->instr,
|
||
texture_dynamic_index, false, false);
|
||
|
||
if (samp_ptr) {
|
||
*samp_ptr = get_sampler_desc(ctx, sampler_deref_instr, AC_DESC_SAMPLER, &instr->instr,
|
||
sampler_dynamic_index, false, false);
|
||
if (instr->sampler_dim < GLSL_SAMPLER_DIM_RECT)
|
||
*samp_ptr = sici_fix_sampler_aniso(ctx, *res_ptr, *samp_ptr);
|
||
}
|
||
if (fmask_ptr && (instr->op == nir_texop_txf_ms || instr->op == nir_texop_samples_identical))
|
||
*fmask_ptr = get_sampler_desc(ctx, texture_deref_instr, AC_DESC_FMASK, &instr->instr,
|
||
texture_dynamic_index, false, false);
|
||
}
|
||
|
||
static LLVMValueRef apply_round_slice(struct ac_llvm_context *ctx, LLVMValueRef coord)
|
||
{
|
||
coord = ac_to_float(ctx, coord);
|
||
coord = ac_build_round(ctx, coord);
|
||
coord = ac_to_integer(ctx, coord);
|
||
return coord;
|
||
}
|
||
|
||
static void visit_tex(struct ac_nir_context *ctx, nir_tex_instr *instr)
|
||
{
|
||
LLVMValueRef result = NULL;
|
||
struct ac_image_args args = {0};
|
||
LLVMValueRef fmask_ptr = NULL, sample_index = NULL;
|
||
LLVMValueRef ddx = NULL, ddy = NULL;
|
||
unsigned offset_src = 0;
|
||
struct waterfall_context wctx[2] = {{{0}}};
|
||
|
||
tex_fetch_ptrs(ctx, instr, wctx, &args.resource, &args.sampler, &fmask_ptr);
|
||
|
||
for (unsigned i = 0; i < instr->num_srcs; i++) {
|
||
switch (instr->src[i].src_type) {
|
||
case nir_tex_src_coord: {
|
||
LLVMValueRef coord = get_src(ctx, instr->src[i].src);
|
||
args.a16 = instr->src[i].src.ssa->bit_size == 16;
|
||
for (unsigned chan = 0; chan < instr->coord_components; ++chan)
|
||
args.coords[chan] = ac_llvm_extract_elem(&ctx->ac, coord, chan);
|
||
break;
|
||
}
|
||
case nir_tex_src_projector:
|
||
break;
|
||
case nir_tex_src_comparator:
|
||
if (instr->is_shadow) {
|
||
args.compare = get_src(ctx, instr->src[i].src);
|
||
args.compare = ac_to_float(&ctx->ac, args.compare);
|
||
assert(instr->src[i].src.ssa->bit_size == 32);
|
||
}
|
||
break;
|
||
case nir_tex_src_offset:
|
||
args.offset = get_src(ctx, instr->src[i].src);
|
||
offset_src = i;
|
||
/* We pack it with bit shifts, so we need it to be 32-bit. */
|
||
assert(ac_get_elem_bits(&ctx->ac, LLVMTypeOf(args.offset)) == 32);
|
||
break;
|
||
case nir_tex_src_bias:
|
||
args.bias = get_src(ctx, instr->src[i].src);
|
||
assert(ac_get_elem_bits(&ctx->ac, LLVMTypeOf(args.bias)) == 32);
|
||
break;
|
||
case nir_tex_src_lod:
|
||
if (nir_src_is_const(instr->src[i].src) && nir_src_as_uint(instr->src[i].src) == 0)
|
||
args.level_zero = true;
|
||
else
|
||
args.lod = get_src(ctx, instr->src[i].src);
|
||
break;
|
||
case nir_tex_src_ms_index:
|
||
sample_index = get_src(ctx, instr->src[i].src);
|
||
break;
|
||
case nir_tex_src_ddx:
|
||
ddx = get_src(ctx, instr->src[i].src);
|
||
args.g16 = instr->src[i].src.ssa->bit_size == 16;
|
||
break;
|
||
case nir_tex_src_ddy:
|
||
ddy = get_src(ctx, instr->src[i].src);
|
||
assert(LLVMTypeOf(ddy) == LLVMTypeOf(ddx));
|
||
break;
|
||
case nir_tex_src_min_lod:
|
||
args.min_lod = get_src(ctx, instr->src[i].src);
|
||
break;
|
||
case nir_tex_src_texture_offset:
|
||
case nir_tex_src_sampler_offset:
|
||
case nir_tex_src_plane:
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (instr->op == nir_texop_txs && instr->sampler_dim == GLSL_SAMPLER_DIM_BUF) {
|
||
result = get_buffer_size(ctx, args.resource, true);
|
||
goto write_result;
|
||
}
|
||
|
||
if (instr->op == nir_texop_texture_samples) {
|
||
LLVMValueRef res, samples, is_msaa;
|
||
LLVMValueRef default_sample;
|
||
|
||
res = LLVMBuildBitCast(ctx->ac.builder, args.resource, ctx->ac.v8i32, "");
|
||
samples =
|
||
LLVMBuildExtractElement(ctx->ac.builder, res, LLVMConstInt(ctx->ac.i32, 3, false), "");
|
||
is_msaa = LLVMBuildLShr(ctx->ac.builder, samples, LLVMConstInt(ctx->ac.i32, 28, false), "");
|
||
is_msaa = LLVMBuildAnd(ctx->ac.builder, is_msaa, LLVMConstInt(ctx->ac.i32, 0xe, false), "");
|
||
is_msaa = LLVMBuildICmp(ctx->ac.builder, LLVMIntEQ, is_msaa,
|
||
LLVMConstInt(ctx->ac.i32, 0xe, false), "");
|
||
|
||
samples = LLVMBuildLShr(ctx->ac.builder, samples, LLVMConstInt(ctx->ac.i32, 16, false), "");
|
||
samples = LLVMBuildAnd(ctx->ac.builder, samples, LLVMConstInt(ctx->ac.i32, 0xf, false), "");
|
||
samples = LLVMBuildShl(ctx->ac.builder, ctx->ac.i32_1, samples, "");
|
||
|
||
if (ctx->abi->robust_buffer_access) {
|
||
LLVMValueRef dword1, is_null_descriptor;
|
||
|
||
/* Extract the second dword of the descriptor, if it's
|
||
* all zero, then it's a null descriptor.
|
||
*/
|
||
dword1 =
|
||
LLVMBuildExtractElement(ctx->ac.builder, res, LLVMConstInt(ctx->ac.i32, 1, false), "");
|
||
is_null_descriptor = LLVMBuildICmp(ctx->ac.builder, LLVMIntEQ, dword1,
|
||
LLVMConstInt(ctx->ac.i32, 0, false), "");
|
||
default_sample =
|
||
LLVMBuildSelect(ctx->ac.builder, is_null_descriptor, ctx->ac.i32_0, ctx->ac.i32_1, "");
|
||
} else {
|
||
default_sample = ctx->ac.i32_1;
|
||
}
|
||
|
||
samples = LLVMBuildSelect(ctx->ac.builder, is_msaa, samples, default_sample, "");
|
||
result = samples;
|
||
goto write_result;
|
||
}
|
||
|
||
if (args.offset && instr->op != nir_texop_txf && instr->op != nir_texop_txf_ms) {
|
||
LLVMValueRef offset[3], pack;
|
||
for (unsigned chan = 0; chan < 3; ++chan)
|
||
offset[chan] = ctx->ac.i32_0;
|
||
|
||
unsigned num_components = ac_get_llvm_num_components(args.offset);
|
||
for (unsigned chan = 0; chan < num_components; chan++) {
|
||
offset[chan] = ac_llvm_extract_elem(&ctx->ac, args.offset, chan);
|
||
offset[chan] =
|
||
LLVMBuildAnd(ctx->ac.builder, offset[chan], LLVMConstInt(ctx->ac.i32, 0x3f, false), "");
|
||
if (chan)
|
||
offset[chan] = LLVMBuildShl(ctx->ac.builder, offset[chan],
|
||
LLVMConstInt(ctx->ac.i32, chan * 8, false), "");
|
||
}
|
||
pack = LLVMBuildOr(ctx->ac.builder, offset[0], offset[1], "");
|
||
pack = LLVMBuildOr(ctx->ac.builder, pack, offset[2], "");
|
||
args.offset = pack;
|
||
}
|
||
|
||
/* Section 8.23.1 (Depth Texture Comparison Mode) of the
|
||
* OpenGL 4.5 spec says:
|
||
*
|
||
* "If the texture’s internal format indicates a fixed-point
|
||
* depth texture, then D_t and D_ref are clamped to the
|
||
* range [0, 1]; otherwise no clamping is performed."
|
||
*
|
||
* TC-compatible HTILE promotes Z16 and Z24 to Z32_FLOAT,
|
||
* so the depth comparison value isn't clamped for Z16 and
|
||
* Z24 anymore. Do it manually here for GFX8-9; GFX10 has
|
||
* an explicitly clamped 32-bit float format.
|
||
*/
|
||
if (args.compare && ctx->ac.chip_class >= GFX8 && ctx->ac.chip_class <= GFX9 &&
|
||
ctx->abi->clamp_shadow_reference) {
|
||
LLVMValueRef upgraded, clamped;
|
||
|
||
upgraded = LLVMBuildExtractElement(ctx->ac.builder, args.sampler,
|
||
LLVMConstInt(ctx->ac.i32, 3, false), "");
|
||
upgraded = LLVMBuildLShr(ctx->ac.builder, upgraded, LLVMConstInt(ctx->ac.i32, 29, false), "");
|
||
upgraded = LLVMBuildTrunc(ctx->ac.builder, upgraded, ctx->ac.i1, "");
|
||
clamped = ac_build_clamp(&ctx->ac, args.compare);
|
||
args.compare = LLVMBuildSelect(ctx->ac.builder, upgraded, clamped, args.compare, "");
|
||
}
|
||
|
||
/* pack derivatives */
|
||
if (ddx || ddy) {
|
||
int num_src_deriv_channels, num_dest_deriv_channels;
|
||
switch (instr->sampler_dim) {
|
||
case GLSL_SAMPLER_DIM_3D:
|
||
case GLSL_SAMPLER_DIM_CUBE:
|
||
num_src_deriv_channels = 3;
|
||
num_dest_deriv_channels = 3;
|
||
break;
|
||
case GLSL_SAMPLER_DIM_2D:
|
||
default:
|
||
num_src_deriv_channels = 2;
|
||
num_dest_deriv_channels = 2;
|
||
break;
|
||
case GLSL_SAMPLER_DIM_1D:
|
||
num_src_deriv_channels = 1;
|
||
if (ctx->ac.chip_class == GFX9) {
|
||
num_dest_deriv_channels = 2;
|
||
} else {
|
||
num_dest_deriv_channels = 1;
|
||
}
|
||
break;
|
||
}
|
||
|
||
for (unsigned i = 0; i < num_src_deriv_channels; i++) {
|
||
args.derivs[i] = ac_to_float(&ctx->ac, ac_llvm_extract_elem(&ctx->ac, ddx, i));
|
||
args.derivs[num_dest_deriv_channels + i] =
|
||
ac_to_float(&ctx->ac, ac_llvm_extract_elem(&ctx->ac, ddy, i));
|
||
}
|
||
for (unsigned i = num_src_deriv_channels; i < num_dest_deriv_channels; i++) {
|
||
LLVMValueRef zero = args.g16 ? ctx->ac.f16_0 : ctx->ac.f32_0;
|
||
args.derivs[i] = zero;
|
||
args.derivs[num_dest_deriv_channels + i] = zero;
|
||
}
|
||
}
|
||
|
||
if (instr->sampler_dim == GLSL_SAMPLER_DIM_CUBE && args.coords[0]) {
|
||
for (unsigned chan = 0; chan < instr->coord_components; chan++)
|
||
args.coords[chan] = ac_to_float(&ctx->ac, args.coords[chan]);
|
||
if (instr->coord_components == 3)
|
||
args.coords[3] = LLVMGetUndef(args.a16 ? ctx->ac.f16 : ctx->ac.f32);
|
||
ac_prepare_cube_coords(&ctx->ac, instr->op == nir_texop_txd, instr->is_array,
|
||
instr->op == nir_texop_lod, args.coords, args.derivs);
|
||
}
|
||
|
||
/* Texture coordinates fixups */
|
||
if (instr->coord_components > 1 && instr->sampler_dim == GLSL_SAMPLER_DIM_1D &&
|
||
instr->is_array && instr->op != nir_texop_txf) {
|
||
args.coords[1] = apply_round_slice(&ctx->ac, args.coords[1]);
|
||
}
|
||
|
||
if (instr->coord_components > 2 &&
|
||
(instr->sampler_dim == GLSL_SAMPLER_DIM_2D || instr->sampler_dim == GLSL_SAMPLER_DIM_MS ||
|
||
instr->sampler_dim == GLSL_SAMPLER_DIM_SUBPASS ||
|
||
instr->sampler_dim == GLSL_SAMPLER_DIM_SUBPASS_MS) &&
|
||
instr->is_array && instr->op != nir_texop_txf && instr->op != nir_texop_txf_ms &&
|
||
instr->op != nir_texop_fragment_fetch_amd && instr->op != nir_texop_fragment_mask_fetch_amd) {
|
||
args.coords[2] = apply_round_slice(&ctx->ac, args.coords[2]);
|
||
}
|
||
|
||
if (ctx->ac.chip_class == GFX9 && instr->sampler_dim == GLSL_SAMPLER_DIM_1D &&
|
||
instr->op != nir_texop_lod) {
|
||
LLVMValueRef filler;
|
||
if (instr->op == nir_texop_txf)
|
||
filler = args.a16 ? ctx->ac.i16_0 : ctx->ac.i32_0;
|
||
else
|
||
filler = LLVMConstReal(args.a16 ? ctx->ac.f16 : ctx->ac.f32, 0.5);
|
||
|
||
if (instr->is_array)
|
||
args.coords[2] = args.coords[1];
|
||
args.coords[1] = filler;
|
||
}
|
||
|
||
/* Pack sample index */
|
||
if (sample_index && (instr->op == nir_texop_txf_ms || instr->op == nir_texop_fragment_fetch_amd))
|
||
args.coords[instr->coord_components] = sample_index;
|
||
|
||
if (instr->op == nir_texop_samples_identical) {
|
||
struct ac_image_args txf_args = {0};
|
||
memcpy(txf_args.coords, args.coords, sizeof(txf_args.coords));
|
||
|
||
txf_args.dmask = 0xf;
|
||
txf_args.resource = args.resource;
|
||
txf_args.dim = instr->is_array ? ac_image_2darray : ac_image_2d;
|
||
result = build_tex_intrinsic(ctx, instr, &txf_args);
|
||
|
||
result = LLVMBuildExtractElement(ctx->ac.builder, result, ctx->ac.i32_0, "");
|
||
result = emit_int_cmp(&ctx->ac, LLVMIntEQ, result, ctx->ac.i32_0);
|
||
goto write_result;
|
||
}
|
||
|
||
if ((instr->sampler_dim == GLSL_SAMPLER_DIM_SUBPASS_MS ||
|
||
instr->sampler_dim == GLSL_SAMPLER_DIM_MS) &&
|
||
instr->op != nir_texop_txs && instr->op != nir_texop_fragment_fetch_amd &&
|
||
instr->op != nir_texop_fragment_mask_fetch_amd) {
|
||
unsigned sample_chan = instr->is_array ? 3 : 2;
|
||
args.coords[sample_chan] = adjust_sample_index_using_fmask(
|
||
&ctx->ac, args.coords[0], args.coords[1], instr->is_array ? args.coords[2] : NULL,
|
||
args.coords[sample_chan], fmask_ptr);
|
||
}
|
||
|
||
if (args.offset && (instr->op == nir_texop_txf || instr->op == nir_texop_txf_ms)) {
|
||
int num_offsets = instr->src[offset_src].src.ssa->num_components;
|
||
num_offsets = MIN2(num_offsets, instr->coord_components);
|
||
for (unsigned i = 0; i < num_offsets; ++i) {
|
||
LLVMValueRef off = ac_llvm_extract_elem(&ctx->ac, args.offset, i);
|
||
if (args.a16)
|
||
off = LLVMBuildTrunc(ctx->ac.builder, off, ctx->ac.i16, "");
|
||
args.coords[i] = LLVMBuildAdd(ctx->ac.builder, args.coords[i], off, "");
|
||
}
|
||
args.offset = NULL;
|
||
}
|
||
|
||
/* DMASK was repurposed for GATHER4. 4 components are always
|
||
* returned and DMASK works like a swizzle - it selects
|
||
* the component to fetch. The only valid DMASK values are
|
||
* 1=red, 2=green, 4=blue, 8=alpha. (e.g. 1 returns
|
||
* (red,red,red,red) etc.) The ISA document doesn't mention
|
||
* this.
|
||
*/
|
||
args.dmask = 0xf;
|
||
if (instr->op == nir_texop_tg4) {
|
||
if (instr->is_shadow)
|
||
args.dmask = 1;
|
||
else
|
||
args.dmask = 1 << instr->component;
|
||
}
|
||
|
||
if (instr->sampler_dim != GLSL_SAMPLER_DIM_BUF) {
|
||
args.dim = ac_get_sampler_dim(ctx->ac.chip_class, instr->sampler_dim, instr->is_array);
|
||
args.unorm = instr->sampler_dim == GLSL_SAMPLER_DIM_RECT;
|
||
}
|
||
|
||
/* Adjust the number of coordinates because we only need (x,y) for 2D
|
||
* multisampled images and (x,y,layer) for 2D multisampled layered
|
||
* images or for multisampled input attachments.
|
||
*/
|
||
if (instr->op == nir_texop_fragment_mask_fetch_amd) {
|
||
if (args.dim == ac_image_2dmsaa) {
|
||
args.dim = ac_image_2d;
|
||
} else {
|
||
assert(args.dim == ac_image_2darraymsaa);
|
||
args.dim = ac_image_2darray;
|
||
}
|
||
}
|
||
|
||
/* Set TRUNC_COORD=0 for textureGather(). */
|
||
if (instr->op == nir_texop_tg4) {
|
||
LLVMValueRef dword0 = LLVMBuildExtractElement(ctx->ac.builder, args.sampler, ctx->ac.i32_0, "");
|
||
dword0 = LLVMBuildAnd(ctx->ac.builder, dword0, LLVMConstInt(ctx->ac.i32, C_008F30_TRUNC_COORD, 0), "");
|
||
args.sampler = LLVMBuildInsertElement(ctx->ac.builder, args.sampler, dword0, ctx->ac.i32_0, "");
|
||
}
|
||
|
||
assert(instr->dest.is_ssa);
|
||
args.d16 = instr->dest.ssa.bit_size == 16;
|
||
args.tfe = instr->is_sparse;
|
||
|
||
result = build_tex_intrinsic(ctx, instr, &args);
|
||
|
||
LLVMValueRef code = NULL;
|
||
if (instr->is_sparse) {
|
||
code = ac_llvm_extract_elem(&ctx->ac, result, 4);
|
||
result = ac_trim_vector(&ctx->ac, result, 4);
|
||
}
|
||
|
||
if (instr->op == nir_texop_query_levels)
|
||
result =
|
||
LLVMBuildExtractElement(ctx->ac.builder, result, LLVMConstInt(ctx->ac.i32, 3, false), "");
|
||
else if (instr->is_shadow && instr->is_new_style_shadow && instr->op != nir_texop_txs &&
|
||
instr->op != nir_texop_lod && instr->op != nir_texop_tg4)
|
||
result = LLVMBuildExtractElement(ctx->ac.builder, result, ctx->ac.i32_0, "");
|
||
else if (ctx->ac.chip_class == GFX9 && instr->op == nir_texop_txs &&
|
||
instr->sampler_dim == GLSL_SAMPLER_DIM_1D && instr->is_array) {
|
||
LLVMValueRef two = LLVMConstInt(ctx->ac.i32, 2, false);
|
||
LLVMValueRef layers = LLVMBuildExtractElement(ctx->ac.builder, result, two, "");
|
||
result = LLVMBuildInsertElement(ctx->ac.builder, result, layers, ctx->ac.i32_1, "");
|
||
} else if (instr->op == nir_texop_fragment_mask_fetch_amd) {
|
||
/* Use 0x76543210 if the image doesn't have FMASK. */
|
||
LLVMValueRef tmp = LLVMBuildBitCast(ctx->ac.builder, args.resource, ctx->ac.v8i32, "");
|
||
tmp = LLVMBuildExtractElement(ctx->ac.builder, tmp, ctx->ac.i32_1, "");
|
||
tmp = LLVMBuildICmp(ctx->ac.builder, LLVMIntNE, tmp, ctx->ac.i32_0, "");
|
||
result = LLVMBuildSelect(ctx->ac.builder, tmp,
|
||
LLVMBuildExtractElement(ctx->ac.builder, result, ctx->ac.i32_0, ""),
|
||
LLVMConstInt(ctx->ac.i32, 0x76543210, false), "");
|
||
} else if (nir_tex_instr_result_size(instr) != 4)
|
||
result = ac_trim_vector(&ctx->ac, result, instr->dest.ssa.num_components);
|
||
|
||
if (instr->is_sparse)
|
||
result = ac_build_concat(&ctx->ac, result, code);
|
||
|
||
write_result:
|
||
if (result) {
|
||
assert(instr->dest.is_ssa);
|
||
result = ac_to_integer(&ctx->ac, result);
|
||
|
||
for (int i = ARRAY_SIZE(wctx); --i >= 0;) {
|
||
result = exit_waterfall(ctx, wctx + i, result);
|
||
}
|
||
|
||
ctx->ssa_defs[instr->dest.ssa.index] = result;
|
||
}
|
||
}
|
||
|
||
static void visit_phi(struct ac_nir_context *ctx, nir_phi_instr *instr)
|
||
{
|
||
LLVMTypeRef type = get_def_type(ctx, &instr->dest.ssa);
|
||
LLVMValueRef result = LLVMBuildPhi(ctx->ac.builder, type, "");
|
||
|
||
ctx->ssa_defs[instr->dest.ssa.index] = result;
|
||
_mesa_hash_table_insert(ctx->phis, instr, result);
|
||
}
|
||
|
||
static void visit_post_phi(struct ac_nir_context *ctx, nir_phi_instr *instr, LLVMValueRef llvm_phi)
|
||
{
|
||
nir_foreach_phi_src (src, instr) {
|
||
LLVMBasicBlockRef block = get_block(ctx, src->pred);
|
||
LLVMValueRef llvm_src = get_src(ctx, src->src);
|
||
|
||
LLVMAddIncoming(llvm_phi, &llvm_src, &block, 1);
|
||
}
|
||
}
|
||
|
||
static void phi_post_pass(struct ac_nir_context *ctx)
|
||
{
|
||
hash_table_foreach(ctx->phis, entry)
|
||
{
|
||
visit_post_phi(ctx, (nir_phi_instr *)entry->key, (LLVMValueRef)entry->data);
|
||
}
|
||
}
|
||
|
||
static bool is_def_used_in_an_export(const nir_ssa_def *def)
|
||
{
|
||
nir_foreach_use (use_src, def) {
|
||
if (use_src->parent_instr->type == nir_instr_type_intrinsic) {
|
||
nir_intrinsic_instr *instr = nir_instr_as_intrinsic(use_src->parent_instr);
|
||
if (instr->intrinsic == nir_intrinsic_store_deref)
|
||
return true;
|
||
} else if (use_src->parent_instr->type == nir_instr_type_alu) {
|
||
nir_alu_instr *instr = nir_instr_as_alu(use_src->parent_instr);
|
||
if (instr->op == nir_op_vec4 && is_def_used_in_an_export(&instr->dest.dest.ssa)) {
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
|
||
static void visit_ssa_undef(struct ac_nir_context *ctx, const nir_ssa_undef_instr *instr)
|
||
{
|
||
unsigned num_components = instr->def.num_components;
|
||
LLVMTypeRef type = LLVMIntTypeInContext(ctx->ac.context, instr->def.bit_size);
|
||
|
||
if (!ctx->abi->convert_undef_to_zero || is_def_used_in_an_export(&instr->def)) {
|
||
LLVMValueRef undef;
|
||
|
||
if (num_components == 1)
|
||
undef = LLVMGetUndef(type);
|
||
else {
|
||
undef = LLVMGetUndef(LLVMVectorType(type, num_components));
|
||
}
|
||
ctx->ssa_defs[instr->def.index] = undef;
|
||
} else {
|
||
LLVMValueRef zero = LLVMConstInt(type, 0, false);
|
||
if (num_components > 1) {
|
||
zero = ac_build_gather_values_extended(&ctx->ac, &zero, 4, 0, false);
|
||
}
|
||
ctx->ssa_defs[instr->def.index] = zero;
|
||
}
|
||
}
|
||
|
||
static void visit_jump(struct ac_llvm_context *ctx, const nir_jump_instr *instr)
|
||
{
|
||
switch (instr->type) {
|
||
case nir_jump_break:
|
||
ac_build_break(ctx);
|
||
break;
|
||
case nir_jump_continue:
|
||
ac_build_continue(ctx);
|
||
break;
|
||
default:
|
||
fprintf(stderr, "Unknown NIR jump instr: ");
|
||
nir_print_instr(&instr->instr, stderr);
|
||
fprintf(stderr, "\n");
|
||
abort();
|
||
}
|
||
}
|
||
|
||
static LLVMTypeRef glsl_base_to_llvm_type(struct ac_llvm_context *ac, enum glsl_base_type type)
|
||
{
|
||
switch (type) {
|
||
case GLSL_TYPE_INT:
|
||
case GLSL_TYPE_UINT:
|
||
case GLSL_TYPE_BOOL:
|
||
case GLSL_TYPE_SUBROUTINE:
|
||
return ac->i32;
|
||
case GLSL_TYPE_INT8:
|
||
case GLSL_TYPE_UINT8:
|
||
return ac->i8;
|
||
case GLSL_TYPE_INT16:
|
||
case GLSL_TYPE_UINT16:
|
||
return ac->i16;
|
||
case GLSL_TYPE_FLOAT:
|
||
return ac->f32;
|
||
case GLSL_TYPE_FLOAT16:
|
||
return ac->f16;
|
||
case GLSL_TYPE_INT64:
|
||
case GLSL_TYPE_UINT64:
|
||
return ac->i64;
|
||
case GLSL_TYPE_DOUBLE:
|
||
return ac->f64;
|
||
default:
|
||
unreachable("unknown GLSL type");
|
||
}
|
||
}
|
||
|
||
static LLVMTypeRef glsl_to_llvm_type(struct ac_llvm_context *ac, const struct glsl_type *type)
|
||
{
|
||
if (glsl_type_is_scalar(type)) {
|
||
return glsl_base_to_llvm_type(ac, glsl_get_base_type(type));
|
||
}
|
||
|
||
if (glsl_type_is_vector(type)) {
|
||
return LLVMVectorType(glsl_base_to_llvm_type(ac, glsl_get_base_type(type)),
|
||
glsl_get_vector_elements(type));
|
||
}
|
||
|
||
if (glsl_type_is_matrix(type)) {
|
||
return LLVMArrayType(glsl_to_llvm_type(ac, glsl_get_column_type(type)),
|
||
glsl_get_matrix_columns(type));
|
||
}
|
||
|
||
if (glsl_type_is_array(type)) {
|
||
return LLVMArrayType(glsl_to_llvm_type(ac, glsl_get_array_element(type)),
|
||
glsl_get_length(type));
|
||
}
|
||
|
||
assert(glsl_type_is_struct_or_ifc(type));
|
||
|
||
LLVMTypeRef *const member_types = alloca(glsl_get_length(type) * sizeof(LLVMTypeRef));
|
||
|
||
for (unsigned i = 0; i < glsl_get_length(type); i++) {
|
||
member_types[i] = glsl_to_llvm_type(ac, glsl_get_struct_field(type, i));
|
||
}
|
||
|
||
return LLVMStructTypeInContext(ac->context, member_types, glsl_get_length(type), false);
|
||
}
|
||
|
||
static void visit_deref(struct ac_nir_context *ctx, nir_deref_instr *instr)
|
||
{
|
||
if (!nir_deref_mode_is_one_of(instr, nir_var_mem_shared | nir_var_mem_global))
|
||
return;
|
||
|
||
LLVMValueRef result = NULL;
|
||
switch (instr->deref_type) {
|
||
case nir_deref_type_var: {
|
||
struct hash_entry *entry = _mesa_hash_table_search(ctx->vars, instr->var);
|
||
result = entry->data;
|
||
break;
|
||
}
|
||
case nir_deref_type_struct:
|
||
if (nir_deref_mode_is(instr, nir_var_mem_global)) {
|
||
nir_deref_instr *parent = nir_deref_instr_parent(instr);
|
||
uint64_t offset = glsl_get_struct_field_offset(parent->type, instr->strct.index);
|
||
result = ac_build_gep_ptr(&ctx->ac, get_src(ctx, instr->parent),
|
||
LLVMConstInt(ctx->ac.i32, offset, 0));
|
||
} else {
|
||
result = ac_build_gep0(&ctx->ac, get_src(ctx, instr->parent),
|
||
LLVMConstInt(ctx->ac.i32, instr->strct.index, 0));
|
||
}
|
||
break;
|
||
case nir_deref_type_array:
|
||
if (nir_deref_mode_is(instr, nir_var_mem_global)) {
|
||
nir_deref_instr *parent = nir_deref_instr_parent(instr);
|
||
unsigned stride = glsl_get_explicit_stride(parent->type);
|
||
|
||
if ((glsl_type_is_matrix(parent->type) && glsl_matrix_type_is_row_major(parent->type)) ||
|
||
(glsl_type_is_vector(parent->type) && stride == 0))
|
||
stride = type_scalar_size_bytes(parent->type);
|
||
|
||
assert(stride > 0);
|
||
LLVMValueRef index = get_src(ctx, instr->arr.index);
|
||
if (LLVMTypeOf(index) != ctx->ac.i64)
|
||
index = LLVMBuildZExt(ctx->ac.builder, index, ctx->ac.i64, "");
|
||
|
||
LLVMValueRef offset =
|
||
LLVMBuildMul(ctx->ac.builder, index, LLVMConstInt(ctx->ac.i64, stride, 0), "");
|
||
|
||
result = ac_build_gep_ptr(&ctx->ac, get_src(ctx, instr->parent), offset);
|
||
} else {
|
||
result =
|
||
ac_build_gep0(&ctx->ac, get_src(ctx, instr->parent), get_src(ctx, instr->arr.index));
|
||
}
|
||
break;
|
||
case nir_deref_type_ptr_as_array:
|
||
if (nir_deref_mode_is(instr, nir_var_mem_global)) {
|
||
unsigned stride = nir_deref_instr_array_stride(instr);
|
||
|
||
LLVMValueRef index = get_src(ctx, instr->arr.index);
|
||
if (LLVMTypeOf(index) != ctx->ac.i64)
|
||
index = LLVMBuildZExt(ctx->ac.builder, index, ctx->ac.i64, "");
|
||
|
||
LLVMValueRef offset =
|
||
LLVMBuildMul(ctx->ac.builder, index, LLVMConstInt(ctx->ac.i64, stride, 0), "");
|
||
|
||
result = ac_build_gep_ptr(&ctx->ac, get_src(ctx, instr->parent), offset);
|
||
} else {
|
||
result =
|
||
ac_build_gep_ptr(&ctx->ac, get_src(ctx, instr->parent), get_src(ctx, instr->arr.index));
|
||
}
|
||
break;
|
||
case nir_deref_type_cast: {
|
||
result = get_src(ctx, instr->parent);
|
||
|
||
/* We can't use the structs from LLVM because the shader
|
||
* specifies its own offsets. */
|
||
LLVMTypeRef pointee_type = ctx->ac.i8;
|
||
if (nir_deref_mode_is(instr, nir_var_mem_shared))
|
||
pointee_type = glsl_to_llvm_type(&ctx->ac, instr->type);
|
||
|
||
unsigned address_space;
|
||
|
||
switch (instr->modes) {
|
||
case nir_var_mem_shared:
|
||
address_space = AC_ADDR_SPACE_LDS;
|
||
break;
|
||
case nir_var_mem_global:
|
||
address_space = AC_ADDR_SPACE_GLOBAL;
|
||
break;
|
||
default:
|
||
unreachable("Unhandled address space");
|
||
}
|
||
|
||
LLVMTypeRef type = LLVMPointerType(pointee_type, address_space);
|
||
|
||
if (LLVMTypeOf(result) != type) {
|
||
if (LLVMGetTypeKind(LLVMTypeOf(result)) == LLVMVectorTypeKind) {
|
||
result = LLVMBuildBitCast(ctx->ac.builder, result, type, "");
|
||
} else {
|
||
result = LLVMBuildIntToPtr(ctx->ac.builder, result, type, "");
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
default:
|
||
unreachable("Unhandled deref_instr deref type");
|
||
}
|
||
|
||
ctx->ssa_defs[instr->dest.ssa.index] = result;
|
||
}
|
||
|
||
static void visit_cf_list(struct ac_nir_context *ctx, struct exec_list *list);
|
||
|
||
static void visit_block(struct ac_nir_context *ctx, nir_block *block)
|
||
{
|
||
LLVMBasicBlockRef blockref = LLVMGetInsertBlock(ctx->ac.builder);
|
||
LLVMValueRef first = LLVMGetFirstInstruction(blockref);
|
||
if (first) {
|
||
/* ac_branch_exited() might have already inserted non-phis */
|
||
LLVMPositionBuilderBefore(ctx->ac.builder, LLVMGetFirstInstruction(blockref));
|
||
}
|
||
|
||
nir_foreach_instr(instr, block) {
|
||
if (instr->type != nir_instr_type_phi)
|
||
break;
|
||
visit_phi(ctx, nir_instr_as_phi(instr));
|
||
}
|
||
|
||
LLVMPositionBuilderAtEnd(ctx->ac.builder, blockref);
|
||
|
||
nir_foreach_instr (instr, block) {
|
||
switch (instr->type) {
|
||
case nir_instr_type_alu:
|
||
visit_alu(ctx, nir_instr_as_alu(instr));
|
||
break;
|
||
case nir_instr_type_load_const:
|
||
visit_load_const(ctx, nir_instr_as_load_const(instr));
|
||
break;
|
||
case nir_instr_type_intrinsic:
|
||
visit_intrinsic(ctx, nir_instr_as_intrinsic(instr));
|
||
break;
|
||
case nir_instr_type_tex:
|
||
visit_tex(ctx, nir_instr_as_tex(instr));
|
||
break;
|
||
case nir_instr_type_phi:
|
||
break;
|
||
case nir_instr_type_ssa_undef:
|
||
visit_ssa_undef(ctx, nir_instr_as_ssa_undef(instr));
|
||
break;
|
||
case nir_instr_type_jump:
|
||
visit_jump(&ctx->ac, nir_instr_as_jump(instr));
|
||
break;
|
||
case nir_instr_type_deref:
|
||
visit_deref(ctx, nir_instr_as_deref(instr));
|
||
break;
|
||
default:
|
||
fprintf(stderr, "Unknown NIR instr type: ");
|
||
nir_print_instr(instr, stderr);
|
||
fprintf(stderr, "\n");
|
||
abort();
|
||
}
|
||
}
|
||
|
||
_mesa_hash_table_insert(ctx->defs, block, LLVMGetInsertBlock(ctx->ac.builder));
|
||
}
|
||
|
||
static void visit_if(struct ac_nir_context *ctx, nir_if *if_stmt)
|
||
{
|
||
LLVMValueRef value = get_src(ctx, if_stmt->condition);
|
||
|
||
nir_block *then_block = (nir_block *)exec_list_get_head(&if_stmt->then_list);
|
||
|
||
ac_build_ifcc(&ctx->ac, value, then_block->index);
|
||
|
||
visit_cf_list(ctx, &if_stmt->then_list);
|
||
|
||
if (!exec_list_is_empty(&if_stmt->else_list)) {
|
||
nir_block *else_block = (nir_block *)exec_list_get_head(&if_stmt->else_list);
|
||
|
||
ac_build_else(&ctx->ac, else_block->index);
|
||
visit_cf_list(ctx, &if_stmt->else_list);
|
||
}
|
||
|
||
ac_build_endif(&ctx->ac, then_block->index);
|
||
}
|
||
|
||
static void visit_loop(struct ac_nir_context *ctx, nir_loop *loop)
|
||
{
|
||
nir_block *first_loop_block = (nir_block *)exec_list_get_head(&loop->body);
|
||
|
||
ac_build_bgnloop(&ctx->ac, first_loop_block->index);
|
||
|
||
visit_cf_list(ctx, &loop->body);
|
||
|
||
ac_build_endloop(&ctx->ac, first_loop_block->index);
|
||
}
|
||
|
||
static void visit_cf_list(struct ac_nir_context *ctx, struct exec_list *list)
|
||
{
|
||
foreach_list_typed(nir_cf_node, node, node, list)
|
||
{
|
||
switch (node->type) {
|
||
case nir_cf_node_block:
|
||
visit_block(ctx, nir_cf_node_as_block(node));
|
||
break;
|
||
|
||
case nir_cf_node_if:
|
||
visit_if(ctx, nir_cf_node_as_if(node));
|
||
break;
|
||
|
||
case nir_cf_node_loop:
|
||
visit_loop(ctx, nir_cf_node_as_loop(node));
|
||
break;
|
||
|
||
default:
|
||
assert(0);
|
||
}
|
||
}
|
||
}
|
||
|
||
void ac_handle_shader_output_decl(struct ac_llvm_context *ctx, struct ac_shader_abi *abi,
|
||
struct nir_shader *nir, struct nir_variable *variable,
|
||
gl_shader_stage stage)
|
||
{
|
||
unsigned output_loc = variable->data.driver_location;
|
||
unsigned attrib_count = glsl_count_attribute_slots(variable->type, false);
|
||
|
||
/* tess ctrl has it's own load/store paths for outputs */
|
||
if (stage == MESA_SHADER_TESS_CTRL)
|
||
return;
|
||
|
||
if (stage == MESA_SHADER_VERTEX || stage == MESA_SHADER_TESS_EVAL ||
|
||
stage == MESA_SHADER_GEOMETRY) {
|
||
int idx = variable->data.location + variable->data.index;
|
||
if (idx == VARYING_SLOT_CLIP_DIST0) {
|
||
int length = nir->info.clip_distance_array_size + nir->info.cull_distance_array_size;
|
||
|
||
if (length > 4)
|
||
attrib_count = 2;
|
||
else
|
||
attrib_count = 1;
|
||
}
|
||
}
|
||
|
||
bool is_16bit = glsl_type_is_16bit(glsl_without_array(variable->type));
|
||
LLVMTypeRef type = is_16bit ? ctx->f16 : ctx->f32;
|
||
for (unsigned i = 0; i < attrib_count; ++i) {
|
||
for (unsigned chan = 0; chan < 4; chan++) {
|
||
abi->outputs[ac_llvm_reg_index_soa(output_loc + i, chan)] =
|
||
ac_build_alloca_undef(ctx, type, "");
|
||
}
|
||
}
|
||
}
|
||
|
||
static void setup_scratch(struct ac_nir_context *ctx, struct nir_shader *shader)
|
||
{
|
||
if (shader->scratch_size == 0)
|
||
return;
|
||
|
||
ctx->scratch =
|
||
ac_build_alloca_undef(&ctx->ac, LLVMArrayType(ctx->ac.i8, shader->scratch_size), "scratch");
|
||
}
|
||
|
||
static void setup_constant_data(struct ac_nir_context *ctx, struct nir_shader *shader)
|
||
{
|
||
if (!shader->constant_data)
|
||
return;
|
||
|
||
LLVMValueRef data = LLVMConstStringInContext(ctx->ac.context, shader->constant_data,
|
||
shader->constant_data_size, true);
|
||
LLVMTypeRef type = LLVMArrayType(ctx->ac.i8, shader->constant_data_size);
|
||
LLVMValueRef global =
|
||
LLVMAddGlobalInAddressSpace(ctx->ac.module, type, "const_data", AC_ADDR_SPACE_CONST);
|
||
|
||
LLVMSetInitializer(global, data);
|
||
LLVMSetGlobalConstant(global, true);
|
||
LLVMSetVisibility(global, LLVMHiddenVisibility);
|
||
ctx->constant_data = global;
|
||
}
|
||
|
||
static void setup_shared(struct ac_nir_context *ctx, struct nir_shader *nir)
|
||
{
|
||
if (ctx->ac.lds)
|
||
return;
|
||
|
||
LLVMTypeRef type = LLVMArrayType(ctx->ac.i8, nir->info.shared_size);
|
||
|
||
LLVMValueRef lds =
|
||
LLVMAddGlobalInAddressSpace(ctx->ac.module, type, "compute_lds", AC_ADDR_SPACE_LDS);
|
||
LLVMSetAlignment(lds, 64 * 1024);
|
||
|
||
ctx->ac.lds =
|
||
LLVMBuildBitCast(ctx->ac.builder, lds, LLVMPointerType(ctx->ac.i8, AC_ADDR_SPACE_LDS), "");
|
||
}
|
||
|
||
void ac_nir_translate(struct ac_llvm_context *ac, struct ac_shader_abi *abi,
|
||
const struct ac_shader_args *args, struct nir_shader *nir)
|
||
{
|
||
struct ac_nir_context ctx = {0};
|
||
struct nir_function *func;
|
||
|
||
ctx.ac = *ac;
|
||
ctx.abi = abi;
|
||
ctx.args = args;
|
||
|
||
ctx.stage = nir->info.stage;
|
||
ctx.info = &nir->info;
|
||
|
||
ctx.main_function = LLVMGetBasicBlockParent(LLVMGetInsertBlock(ctx.ac.builder));
|
||
|
||
/* TODO: remove this after RADV switches to lowered IO */
|
||
if (!nir->info.io_lowered) {
|
||
nir_foreach_shader_out_variable(variable, nir)
|
||
{
|
||
ac_handle_shader_output_decl(&ctx.ac, ctx.abi, nir, variable, ctx.stage);
|
||
}
|
||
}
|
||
|
||
ctx.defs = _mesa_hash_table_create(NULL, _mesa_hash_pointer, _mesa_key_pointer_equal);
|
||
ctx.phis = _mesa_hash_table_create(NULL, _mesa_hash_pointer, _mesa_key_pointer_equal);
|
||
ctx.vars = _mesa_hash_table_create(NULL, _mesa_hash_pointer, _mesa_key_pointer_equal);
|
||
|
||
if (ctx.abi->kill_ps_if_inf_interp)
|
||
ctx.verified_interp =
|
||
_mesa_hash_table_create(NULL, _mesa_hash_pointer, _mesa_key_pointer_equal);
|
||
|
||
func = (struct nir_function *)exec_list_get_head(&nir->functions);
|
||
|
||
nir_index_ssa_defs(func->impl);
|
||
ctx.ssa_defs = calloc(func->impl->ssa_alloc, sizeof(LLVMValueRef));
|
||
|
||
setup_scratch(&ctx, nir);
|
||
setup_constant_data(&ctx, nir);
|
||
|
||
if (gl_shader_stage_is_compute(nir->info.stage))
|
||
setup_shared(&ctx, nir);
|
||
|
||
if (nir->info.stage == MESA_SHADER_FRAGMENT && nir->info.fs.uses_demote &&
|
||
LLVM_VERSION_MAJOR < 13) {
|
||
/* true = don't kill. */
|
||
ctx.ac.postponed_kill = ac_build_alloca_init(&ctx.ac, ctx.ac.i1true, "");
|
||
}
|
||
|
||
visit_cf_list(&ctx, &func->impl->body);
|
||
phi_post_pass(&ctx);
|
||
|
||
if (ctx.ac.postponed_kill)
|
||
ac_build_kill_if_false(&ctx.ac, LLVMBuildLoad2(ctx.ac.builder, ctx.ac.i1, ctx.ac.postponed_kill, ""));
|
||
|
||
if (!gl_shader_stage_is_compute(nir->info.stage))
|
||
ctx.abi->emit_outputs(ctx.abi);
|
||
|
||
free(ctx.ssa_defs);
|
||
ralloc_free(ctx.defs);
|
||
ralloc_free(ctx.phis);
|
||
ralloc_free(ctx.vars);
|
||
if (ctx.abi->kill_ps_if_inf_interp)
|
||
ralloc_free(ctx.verified_interp);
|
||
}
|