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nir: Support deref instructions in opt_undef

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Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Acked-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Jason Ekstrand 2018-04-02 16:44:24 -07:00
parent f46ecdc441
commit 5dc58908b7
1 changed files with 7 additions and 4 deletions
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11
src/compiler/nir/nir_opt_undef.c
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@ -107,19 +107,24 @@ opt_undef_vecN(nir_builder *b, nir_alu_instr *alu)
static bool
opt_undef_store(nir_intrinsic_instr *intrin)
{
int arg_index;
switch (intrin->intrinsic) {
case nir_intrinsic_store_deref:
arg_index = 1;
break;
case nir_intrinsic_store_var:
case nir_intrinsic_store_output:
case nir_intrinsic_store_per_vertex_output:
case nir_intrinsic_store_ssbo:
case nir_intrinsic_store_shared:
arg_index = 0;
break;
default:
return false;
}
if (!intrin->src[0].is_ssa ||
intrin->src[0].ssa->parent_instr->type != nir_instr_type_ssa_undef)
if (!intrin->src[arg_index].is_ssa ||
intrin->src[arg_index].ssa->parent_instr->type != nir_instr_type_ssa_undef)
return false;
nir_instr_remove(&intrin->instr);
@ -133,8 +138,6 @@ nir_opt_undef(nir_shader *shader)
nir_builder b;
bool progress = false;
nir_assert_lowered_derefs(shader, nir_lower_load_store_derefs);
nir_foreach_function(function, shader) {
if (function->impl) {
nir_builder_init(&b, function->impl);