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nir: Consider deref instructions in lower_phis_to_scalar

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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
2018-03-26 18:13:59 -07:00
parent 775ef13384
commit 1e1733aaf0
1 changed files with 9 additions and 2 deletions
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11
src/compiler/nir/nir_lower_phis_to_scalar.c
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@@ -83,10 +83,19 @@ is_phi_src_scalarizable(nir_phi_src *src,
nir_intrinsic_instr *src_intrin = nir_instr_as_intrinsic(src_instr);
switch (src_intrin->intrinsic) {
case nir_intrinsic_load_deref: {
nir_deref_instr *deref = nir_src_as_deref(src_intrin->src[0]);
return deref->mode == nir_var_shader_in ||
deref->mode == nir_var_uniform;
}
case nir_intrinsic_load_var:
return src_intrin->variables[0]->var->data.mode == nir_var_shader_in ||
src_intrin->variables[0]->var->data.mode == nir_var_uniform;
case nir_intrinsic_interp_deref_at_centroid:
case nir_intrinsic_interp_deref_at_sample:
case nir_intrinsic_interp_deref_at_offset:
case nir_intrinsic_interp_var_at_centroid:
case nir_intrinsic_interp_var_at_sample:
case nir_intrinsic_interp_var_at_offset:
@@ -299,8 +308,6 @@ nir_lower_phis_to_scalar(nir_shader *shader)
{
bool progress = false;
nir_assert_lowered_derefs(shader, nir_lower_load_store_derefs);
nir_foreach_function(function, shader) {
if (function->impl)
progress = lower_phis_to_scalar_impl(function->impl) || progress;