Mesa (main): nir/gather_info: Stop gathering uses_sample_shading

[GitLab Mirror]

Module: Mesa
Branch: main
Commit: 3cf103f23d87d9dda9e7f01ae37c712d5d2b593e
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=3cf103f23d87d9dda9e7f01ae37c712d5d2b593e

Author: Jason Ekstrand <jason at jlekstrand.net>
Date:   Wed Dec  1 16:12:21 2021 -0600

nir/gather_info: Stop gathering uses_sample_shading

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14020>

---

 src/compiler/nir/nir_gather_info.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/src/compiler/nir/nir_gather_info.c b/src/compiler/nir/nir_gather_info.c
index 21784b7c5b9..c19fe07a1bd 100644
--- a/src/compiler/nir/nir_gather_info.c
+++ b/src/compiler/nir/nir_gather_info.c
@@ -987,17 +987,6 @@ nir_shader_gather_info(nir_shader *shader, nir_function_impl *entrypoint)
    gather_func_info(entrypoint, shader, visited_funcs, dead_ctx);
    ralloc_free(dead_ctx);
 
-   if (shader->info.stage == MESA_SHADER_FRAGMENT &&
-       (shader->info.fs.uses_sample_qualifier ||
-        (BITSET_TEST(shader->info.system_values_read, SYSTEM_VALUE_SAMPLE_ID) ||
-         BITSET_TEST(shader->info.system_values_read, SYSTEM_VALUE_SAMPLE_POS)))) {
-      /* This shouldn't be cleared because if optimizations remove all
-       * sample-qualified inputs and that pass is run again, the sample
-       * shading must stay enabled.
-       */
-      shader->info.fs.uses_sample_shading = true;
-   }
-
    shader->info.per_primitive_outputs = 0;
    if (shader->info.stage == MESA_SHADER_MESH) {
       nir_foreach_shader_out_variable(var, shader) {