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r300: tweak nir loop unrolling hint for r500 vertex shaders

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This should prevent some cxbx-r shaders from unrolling above the
instruction limit and results in 3 gained cxbx-r shaders on RV530
with no other changes in shader-db.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5967

Signed-off-by: Pavel Ondračka <pavel.ondracka@gmail.com>
Reviewed-by: Filip Gawin <filip@gawin.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19702>
This commit is contained in:
Pavel Ondračka
2022-11-12 20:48:47 +01:00
committed by Marge Bot
parent 6ac678df43
commit 51457b19ce
1 changed files with 1 additions and 1 deletions
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src/gallium/drivers/r300/r300_screen.c
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@@ -516,7 +516,7 @@ static const nir_shader_compiler_options r500_vs_compiler_options = {
/* Have HW loops support and 1024 max instr count, but don't unroll *too*
* hard.
*/
.max_unroll_iterations = 32,
.max_unroll_iterations = 29,
};
static const nir_shader_compiler_options r500_fs_compiler_options = {