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radeonsi/gfx11: compile monolithic PS if it writes memory

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Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16990>
This commit is contained in:
Marek Olšák 2022-05-16 09:45:15 -04:00 • committed by Marge Bot
parent ee7150da79
commit 0e8beb1eed
1 changed files with 5 additions and 0 deletions
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5
src/gallium/drivers/radeonsi/si_state_shaders.cpp
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@ -2325,11 +2325,16 @@ void si_ps_key_update_framebuffer_blend(struct si_context *sctx)
* Check if any output is eliminated.
*
* Dual source blending never has color buffer 1 enabled, so ignore it.
*
* On gfx11, pixel shaders that write memory should be compiled with an inlined epilog,
* so that the compiler can see s_endpgm and deallocates VGPRs before memory stores return.
*/
if (sel->info.colors_written_4bit &
(blend->dual_src_blend ? 0xffffff0f : 0xffffffff) &
~(sctx->framebuffer.colorbuf_enabled_4bit & blend->cb_target_enabled_4bit))
key->ps.opt.prefer_mono = 1;
else if (sctx->gfx_level >= GFX11 && sel->info.base.writes_memory)
key->ps.opt.prefer_mono = 1;
else
key->ps.opt.prefer_mono = 0;
}