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anv: Handle nir_intrinsic_vulkan_resource_reindex

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Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
This commit is contained in:
Jason Ekstrand 2017-11-30 17:13:56 -08:00
parent cfb81f58a0
commit 32c859125b
1 changed files with 27 additions and 1 deletions
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28
src/intel/vulkan/anv_nir_apply_pipeline_layout.c
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@ -128,6 +128,25 @@ lower_res_index_intrinsic(nir_intrinsic_instr *intrin,
nir_instr_remove(&intrin->instr);
}
static void
lower_res_reindex_intrinsic(nir_intrinsic_instr *intrin,
struct apply_pipeline_layout_state *state)
{
nir_builder *b = &state->builder;
/* For us, the resource indices are just indices into the binding table and
* array elements are sequential. A resource_reindex just turns into an
* add of the two indices.
*/
assert(intrin->src[0].is_ssa && intrin->src[0].is_ssa);
nir_ssa_def *new_index = nir_iadd(b, intrin->src[0].ssa,
intrin->src[1].ssa);
assert(intrin->dest.is_ssa);
nir_ssa_def_rewrite_uses(&intrin->dest.ssa, nir_src_for_ssa(new_index));
nir_instr_remove(&intrin->instr);
}
static void
lower_tex_deref(nir_tex_instr *tex, nir_deref_var *deref,
unsigned *const_index, unsigned array_size,
@ -265,8 +284,15 @@ apply_pipeline_layout_block(nir_block *block,
switch (instr->type) {
case nir_instr_type_intrinsic: {
nir_intrinsic_instr *intrin = nir_instr_as_intrinsic(instr);
if (intrin->intrinsic == nir_intrinsic_vulkan_resource_index) {
switch (intrin->intrinsic) {
case nir_intrinsic_vulkan_resource_index:
lower_res_index_intrinsic(intrin, state);
break;
case nir_intrinsic_vulkan_resource_reindex:
lower_res_reindex_intrinsic(intrin, state);
break;
default:
break;
}
break;
}