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r600: switch to NIR loop unrolling

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Note the NIR unrolling code was already enabled but we bump the
iteration unroll count to match the GLSL IR limit as per the
comment about loop bugs.

Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16543>
This commit is contained in:
Timothy Arceri
2022-05-06 12:04:05 +10:00
committed by Marge Bot
parent dc2edb8f1d
commit b84e003079
2 changed files with 6 additions and 7 deletions
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6
src/gallium/drivers/r600/r600_pipe_common.c
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@@ -1339,7 +1339,11 @@ bool r600_common_screen_init(struct r600_common_screen *rscreen,
.lower_insert_byte = true,
.lower_insert_word = true,
.lower_rotate = true,
.max_unroll_iterations = 32,
/* due to a bug in the shader compiler, some loops hang
* if they are not unrolled, see:
* https://bugs.freedesktop.org/show_bug.cgi?id=86720
*/
.max_unroll_iterations = 255,
.lower_interpolate_at = true,
.vectorize_io = true,
.has_umad24 = true,