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r600g/llvm: Factorize code loading from const buffer.

This commit is contained in:
Vincent Lejeune 2013-05-19 15:40:19 +02:00
parent 01b79b2e3b
commit 9c2943601e
1 changed files with 24 additions and 27 deletions
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51
src/gallium/drivers/r600/r600_llvm.c
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@ -23,30 +23,40 @@
#define CONSTANT_BUFFER_0_ADDR_SPACE 8
#define CONSTANT_BUFFER_1_ADDR_SPACE (CONSTANT_BUFFER_0_ADDR_SPACE + R600_UCP_CONST_BUFFER)
static LLVMValueRef llvm_load_const_buffer(
struct lp_build_tgsi_context * bld_base,
LLVMValueRef OffsetValue,
unsigned ConstantAddressSpace)
{
LLVMValueRef offset[2] = {
LLVMConstInt(LLVMInt64TypeInContext(bld_base->base.gallivm->context), 0, false),
OffsetValue
};
LLVMTypeRef const_ptr_type = LLVMPointerType(LLVMArrayType(LLVMVectorType(bld_base->base.elem_type, 4), 1024),
ConstantAddressSpace);
LLVMValueRef const_ptr = LLVMBuildIntToPtr(bld_base->base.gallivm->builder, lp_build_const_int32(bld_base->base.gallivm, 0), const_ptr_type, "");
LLVMValueRef ptr = LLVMBuildGEP(bld_base->base.gallivm->builder, const_ptr, offset, 2, "");
return LLVMBuildLoad(bld_base->base.gallivm->builder, ptr, "");
}
static LLVMValueRef llvm_fetch_const(
struct lp_build_tgsi_context * bld_base,
const struct tgsi_full_src_register *reg,
enum tgsi_opcode_type type,
unsigned swizzle)
{
LLVMValueRef offset[2] = {
LLVMConstInt(LLVMInt64TypeInContext(bld_base->base.gallivm->context), 0, false),
lp_build_const_int32(bld_base->base.gallivm, reg->Register.Index)
};
LLVMValueRef offset = lp_build_const_int32(bld_base->base.gallivm, reg->Register.Index);
if (reg->Register.Indirect) {
struct lp_build_tgsi_soa_context *bld = lp_soa_context(bld_base);
LLVMValueRef index = LLVMBuildLoad(bld_base->base.gallivm->builder, bld->addr[reg->Indirect.Index][reg->Indirect.Swizzle], "");
offset[1] = LLVMBuildAdd(bld_base->base.gallivm->builder, offset[1], index, "");
offset = LLVMBuildAdd(bld_base->base.gallivm->builder, offset, index, "");
}
unsigned ConstantAddressSpace = CONSTANT_BUFFER_0_ADDR_SPACE ;
if (reg->Register.Dimension) {
ConstantAddressSpace += reg->Dimension.Index;
}
LLVMTypeRef const_ptr_type = LLVMPointerType(LLVMArrayType(LLVMVectorType(bld_base->base.elem_type, 4), 1024),
ConstantAddressSpace);
LLVMValueRef const_ptr = LLVMBuildIntToPtr(bld_base->base.gallivm->builder, lp_build_const_int32(bld_base->base.gallivm, 0), const_ptr_type, "");
LLVMValueRef ptr = LLVMBuildGEP(bld_base->base.gallivm->builder, const_ptr, offset, 2, "");
LLVMValueRef cvecval = LLVMBuildLoad(bld_base->base.gallivm->builder, ptr, "");
LLVMValueRef cvecval = llvm_load_const_buffer(bld_base, offset, ConstantAddressSpace);
LLVMValueRef cval = LLVMBuildExtractElement(bld_base->base.gallivm->builder, cvecval, lp_build_const_int32(bld_base->base.gallivm, swizzle), "");
return bitcast(bld_base, type, cval);
}
@ -250,14 +260,8 @@ static void llvm_emit_epilogue(struct lp_build_tgsi_context * bld_base)
LLVMValueRef adjusted_elements[4];
for (reg_index = 0; reg_index < 2; reg_index ++) {
for (chan = 0; chan < TGSI_NUM_CHANNELS; chan++) {
LLVMValueRef offset[2] = {
LLVMConstInt(LLVMInt64TypeInContext(bld_base->base.gallivm->context), 0, false),
lp_build_const_int32(bld_base->base.gallivm, reg_index * 4 + chan)
};
LLVMTypeRef const_ptr_type = LLVMPointerType(LLVMArrayType(LLVMVectorType(bld_base->base.elem_type, 4), 1024), CONSTANT_BUFFER_1_ADDR_SPACE);
LLVMValueRef const_ptr = LLVMBuildIntToPtr(bld_base->base.gallivm->builder, lp_build_const_int32(bld_base->base.gallivm, 0), const_ptr_type, "");
LLVMValueRef ptr = LLVMBuildGEP(bld_base->base.gallivm->builder, const_ptr, offset, 2, "");
LLVMValueRef base_vector = LLVMBuildLoad(bld_base->base.gallivm->builder, ptr, "");
LLVMValueRef offset = lp_build_const_int32(bld_base->base.gallivm, reg_index * 4 + chan);
LLVMValueRef base_vector = llvm_load_const_buffer(bld_base, offset, CONSTANT_BUFFER_1_ADDR_SPACE);
args[0] = output;
args[1] = base_vector;
adjusted_elements[chan] = build_intrinsic(base->gallivm->builder,
@ -405,15 +409,8 @@ static void llvm_emit_tex(
if (emit_data->inst->Texture.Texture == TGSI_TEXTURE_BUFFER) {
switch (emit_data->inst->Instruction.Opcode) {
case TGSI_OPCODE_TXQ: {
LLVMValueRef offset[2] = {
LLVMConstInt(LLVMInt64TypeInContext(bld_base->base.gallivm->context), 0, false),
lp_build_const_int32(bld_base->base.gallivm, 1)
};
LLVMTypeRef const_ptr_type = LLVMPointerType(LLVMArrayType(LLVMVectorType(bld_base->base.elem_type, 4), 1024),
R600_BUFFER_INFO_CONST_BUFFER);
LLVMValueRef const_ptr = LLVMBuildIntToPtr(bld_base->base.gallivm->builder, lp_build_const_int32(bld_base->base.gallivm, 0), const_ptr_type, "");
LLVMValueRef ptr = LLVMBuildGEP(bld_base->base.gallivm->builder, const_ptr, offset, 2, "");
LLVMValueRef cvecval = LLVMBuildLoad(bld_base->base.gallivm->builder, ptr, "");
LLVMValueRef offset = lp_build_const_int32(bld_base->base.gallivm, 1);
LLVMValueRef cvecval = llvm_load_const_buffer(bld_base, offset, R600_BUFFER_INFO_CONST_BUFFER);
emit_data->output[0] = cvecval;
return;
}