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r300: use nir lowering for ffloor

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Negligible amount of instructions saved on RV530:
total instructions in shared programs: 134970 -> 134963 (<.01%)
instructions in affected programs: 2273 -> 2266 (-0.31%)
helped: 9
HURT: 1

The one hurt shader is when we fail to recognize the x - ffract(x)
pattern and skip the don't emit ftrunc optimization as implemented
in the previous patch due to some non-trivial swizzles going on.

Signed-off-by: Pavel Ondračka <pave.ondracka@gmail.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Acked-by: Filip Gawin <filip@gawin.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20208>
This commit is contained in:
Pavel Ondračka
2022-12-07 16:11:41 +01:00
committed by Marge Bot
parent a93bc6afc4
commit 31f678626f
1 changed files with 1 additions and 0 deletions
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1
src/gallium/drivers/r300/r300_screen.c
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@@ -498,6 +498,7 @@ static int r300_get_video_param(struct pipe_screen *screen,
.lower_extract_word = true, \
.lower_fdiv = true, \
.lower_fdph = true, \
.lower_ffloor = true, \
.lower_flrp32 = true, \
.lower_flrp64 = true, \
.lower_fmod = true, \