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nir/nir_lower_wpos_center: Use the nir_shader_instructions_pass() helper

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Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11683>
This commit is contained in:
Thomas H.P. Andersen 2021-07-01 18:02:37 +02:00 • committed by Marge Bot
parent 133e7ba571
commit ecab220c50
1 changed files with 13 additions and 29 deletions
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42
src/compiler/nir/nir_lower_wpos_center.c
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@ -67,43 +67,27 @@ update_fragcoord(nir_builder *b, nir_intrinsic_instr *intr)
}
static bool
lower_wpos_center_block(nir_builder *b, nir_block *block)
lower_wpos_center_instr(nir_builder *b, nir_instr *instr, void *data)
{
bool progress = false;
if (instr->type != nir_instr_type_intrinsic)
return false;
nir_foreach_instr(instr, block) {
if (instr->type == nir_instr_type_intrinsic) {
nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr);
if (intr->intrinsic == nir_intrinsic_load_frag_coord) {
update_fragcoord(b, intr);
progress = true;
}
}
}
nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr);
if (intr->intrinsic != nir_intrinsic_load_frag_coord)
return false;
return progress;
update_fragcoord(b, intr);
return true;
}
bool
nir_lower_wpos_center(nir_shader *shader)
{
bool progress = false;
nir_builder b;
assert(shader->info.stage == MESA_SHADER_FRAGMENT);
nir_foreach_function(function, shader) {
if (function->impl) {
nir_builder_init(&b, function->impl);
nir_foreach_block(block, function->impl) {
progress = lower_wpos_center_block(&b, block) ||
progress;
}
nir_metadata_preserve(function->impl, nir_metadata_block_index |
nir_metadata_dominance);
}
}
return progress;
return nir_shader_instructions_pass(shader,
lower_wpos_center_instr,
nir_metadata_block_index |
nir_metadata_dominance,
NULL);
}