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intel/fs: Initialize the sample mask in flags register when using demote 

Without this change, a check for "is helper invocation" could read
uninitialized values.

Fixes: 45f5db5a84 ("intel/fs: Implement "demote to helper invocation"")
Reviewed-by: Jason Ekstrand <jason.ekstrand@collabora.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15400>
This commit is contained in:
Caio Oliveira 2022-03-15 17:15:17 -07:00 committed by Marge Bot
parent 2648ccb341
commit bb311c22df
1 changed files with 2 additions and 1 deletions
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3
src/intel/compiler/brw_fs.cpp
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@ -9694,7 +9694,8 @@ brw_nir_populate_wm_prog_data(const nir_shader *shader,
* so the shader definitely kills pixels.
*/
prog_data->uses_kill = shader->info.fs.uses_discard ||
key->emit_alpha_test;
shader->info.fs.uses_demote ||
key->emit_alpha_test;
prog_data->uses_omask = !key->ignore_sample_mask_out &&
(shader->info.outputs_written & BITFIELD64_BIT(FRAG_RESULT_SAMPLE_MASK));
prog_data->computed_depth_mode = computed_depth_mode(shader);