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nir/divergence: handle resource_intel like other intrinsics

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Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40729>
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Lionel Landwerlin 2026-02-04 17:22:32 +02:00 • committed by Marge Bot
parent 0b1c23103e
commit 4f74d9293f
1 changed files with 2 additions and 22 deletions
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24
src/compiler/nir/nir_divergence_analysis.c
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@ -812,7 +812,8 @@ visit_intrinsic(nir_intrinsic_instr *instr, struct divergence_state *state)
case nir_intrinsic_load_depth_texture_kk:
case nir_intrinsic_load_sampler_handle_kk:
case nir_intrinsic_load_texture_scale:
case nir_intrinsic_load_inline_data_intel: {
case nir_intrinsic_load_inline_data_intel:
case nir_intrinsic_resource_intel: {
unsigned num_srcs = nir_intrinsic_infos[instr->intrinsic].num_srcs;
for (unsigned i = 0; i < num_srcs; i++) {
if (src_divergent(instr->src[i], state)) {
@ -823,27 +824,6 @@ visit_intrinsic(nir_intrinsic_instr *instr, struct divergence_state *state)
break;
}
case nir_intrinsic_resource_intel:
/* Not having the non_uniform flag with divergent sources is undefined
* behavior. The Intel driver defines it pick the lowest numbered live
* SIMD lane (via emit_uniformize).
*
* When gather the divergence across subgroups, we need propagate the
* divergence from the sources.
*/
if ((nir_intrinsic_resource_access_intel(instr) &
nir_resource_intel_non_uniform) != 0 ||
(state->options & nir_divergence_across_subgroups)) {
unsigned num_srcs = nir_intrinsic_infos[instr->intrinsic].num_srcs;
for (unsigned i = 0; i < num_srcs; i++) {
if (src_divergent(instr->src[i], state)) {
is_divergent = true;
break;
}
}
}
break;
case nir_intrinsic_shuffle:
is_divergent = src_divergent(instr->src[0], state) &&
src_divergent(instr->src[1], state);