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Revert "nir: add nir_clear_divergence_info, use it in nir_opt_varyings"

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This reverts commit 9d043e138d.

It is no longer needed. nir_convert_from_ssa() is now capable to
ignore divergence information.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33009>
This commit is contained in:
Daniel Schürmann 2025-01-14 09:50:45 +01:00 • committed by Marge Bot
parent f3be7ce01b
commit 1feb733cd4
3 changed files with 0 additions and 30 deletions
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1
src/compiler/nir/nir.h
View file

@ -6771,7 +6771,6 @@ void nir_divergence_analysis_impl(nir_function_impl *impl, nir_divergence_option
void nir_divergence_analysis(nir_shader *shader);
void nir_vertex_divergence_analysis(nir_shader *shader);
bool nir_has_divergent_loop(nir_shader *shader);
void nir_clear_divergence_info(nir_shader *nir);
void
nir_rewrite_uses_to_load_reg(struct nir_builder *b, nir_def *old,

20
src/compiler/nir/nir_divergence_analysis.c
View file

@ -1487,23 +1487,3 @@ nir_has_divergent_loop(nir_shader *shader)
return false;
}
/* Recommended when computing divergence information in shared code such
* as the GLSL linker.
*/
void
nir_clear_divergence_info(nir_shader *nir)
{
nir_foreach_function_impl(impl, nir) {
nir_foreach_block(block, impl) {
/* true is the safer value. */
block->divergent = true;
nir_foreach_instr(instr, block) {
nir_def *def = nir_instr_def(instr);
if (def)
def->divergent = true;
}
}
}
}

9
src/compiler/nir/nir_opt_varyings.c
View file

@ -5306,14 +5306,5 @@ nir_opt_varyings(nir_shader *producer, nir_shader *consumer, bool spirv,
if (progress & nir_progress_consumer)
nir_validate_shader(consumer, "nir_opt_varyings");
if (consumer->info.stage == MESA_SHADER_FRAGMENT) {
/* We have called nir_vertex_divergence_analysis on the producer here.
* We need to reset the divergent field to true, otherwise it will be
* garbage after some other passes are run, and then we end up failing
* assertions in some passes because src is divergent and dst isn't.
*/
nir_clear_divergence_info(producer);
}
return progress;
}