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ac/nir: Add loading from LDS for merged GS. 

Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Bas Nieuwenhuizen 2017-10-20 01:40:31 +02:00 committed by Dave Airlie
parent ec53e52742
commit d4ecc3c929
1 changed files with 20 additions and 14 deletions
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34
src/amd/common/ac_nir_to_llvm.c
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@ -3008,21 +3008,27 @@ load_gs_input(struct nir_to_llvm_context *ctx,
param = shader_io_get_unique_index(instr->variables[0]->var->data.location);
for (unsigned i = 0; i < instr->num_components; i++) {
if (ctx->ac.chip_class >= GFX9) {
LLVMValueRef dw_addr = ctx->gs_vtx_offset[vtx_offset_param];
dw_addr = LLVMBuildAdd(ctx->ac.builder, dw_addr,
LLVMConstInt(ctx->ac.i32, param * 4 + i, 0), "");
value[i] = lds_load(ctx, dw_addr);
} else {
args[0] = ctx->esgs_ring;
args[1] = vtx_offset;
args[2] = LLVMConstInt(ctx->i32, (param * 4 + i + const_index) * 256, false);
args[3] = ctx->i32zero;
args[4] = ctx->i32one; /* OFFEN */
args[5] = ctx->i32zero; /* IDXEN */
args[6] = ctx->i32one; /* GLC */
args[7] = ctx->i32zero; /* SLC */
args[8] = ctx->i32zero; /* TFE */
args[0] = ctx->esgs_ring;
args[1] = vtx_offset;
args[2] = LLVMConstInt(ctx->i32, (param * 4 + i + const_index) * 256, false);
args[3] = ctx->i32zero;
args[4] = ctx->i32one; /* OFFEN */
args[5] = ctx->i32zero; /* IDXEN */
args[6] = ctx->i32one; /* GLC */
args[7] = ctx->i32zero; /* SLC */
args[8] = ctx->i32zero; /* TFE */
value[i] = ac_build_intrinsic(&ctx->ac, "llvm.SI.buffer.load.dword.i32.i32",
ctx->i32, args, 9,
AC_FUNC_ATTR_READONLY |
AC_FUNC_ATTR_LEGACY);
value[i] = ac_build_intrinsic(&ctx->ac, "llvm.SI.buffer.load.dword.i32.i32",
ctx->i32, args, 9,
AC_FUNC_ATTR_READONLY |
AC_FUNC_ATTR_LEGACY);
}
}
result = ac_build_gather_values(&ctx->ac, value, instr->num_components);