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radv: stop using a PS epilog when the FS doesn't write any color outputs

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This is a small optimization for fragment shaders that only write
depth/stencil/sample mask without any color outputs.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21341>
This commit is contained in:
Samuel Pitoiset 2023-02-15 16:39:24 +01:00 • committed by Marge Bot
parent 78c0fae08c
commit c8495dbee3
1 changed files with 1 additions and 1 deletions
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2
src/amd/vulkan/radv_shader_info.c
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@ -583,7 +583,7 @@ gather_shader_info_fs(const nir_shader *nir, const struct radv_pipeline_key *pip
info->ps.spi_ps_input = radv_compute_spi_ps_input(pipeline_key, info);
info->ps.has_epilog = pipeline_key->ps.has_epilog;
info->ps.has_epilog = pipeline_key->ps.has_epilog && info->ps.colors_written;
info->ps.writes_mrt0_alpha =
(pipeline_key->ps.alpha_to_coverage_via_mrtz && (info->ps.color0_written & 0x8)) &&