mesa/src/nouveau
Mel Henning ce1d0ae108 nak: Don't copy-prop adds that flush to zero
Adding zero has the effect of flushing to zero when ftz is set.

This fixes a regression in
dEQP-VK.spirv_assembly.instruction.compute.float_controls.fp32.input_args.reflect_denorm_flush_to_zero
An add.ftz changes one of its arguments to negative rather than positive
zero starting in 8d19ffef0a ("nir: Add more matches for `fmulz`") on
that test, which was then triggering copy-prop which brought this
issue to light.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/13961
Fixes: 29bfdcd7 ("nak: Add an ftz bit to a bunch of float ops")
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Reviewed-by: Mary Guillemard <mary@mary.zone>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37537>
2025-09-24 16:41:34 +00:00
..
ci nvk/ci: document fixed tests 2025-09-07 22:25:58 +02:00
compiler nak: Don't copy-prop adds that flush to zero 2025-09-24 16:41:34 +00:00
drm build: pass licensing information in SPDX form 2024-06-29 12:42:49 -07:00
drm-shim nouveau/drm-shim: set ram_user 2024-07-16 15:13:40 +00:00
headers nouveau/winsys: add shared memory size tables 2025-09-05 20:01:01 +00:00
mme nvk: Check subchannels are valid in nv_push 2025-08-07 18:47:47 +00:00
nil nil: Add missing compressible PTE kinds 2025-08-29 15:27:50 -04:00
rust nouveau/bitview: Drop an unneeded lifetime 2025-08-20 17:06:50 +00:00
vulkan nvk: remove unused relative_dir variable 2025-09-15 12:18:37 +00:00
winsys nouveau/winsys: add shared memory size tables 2025-09-05 20:01:01 +00:00
.rustfmt.toml nouveau: Move .rustfmt.toml from NAK to src/nouveau/ 2024-04-08 20:28:43 +00:00
meson.build nouveau: Move codegen back to the src/gallium/drivers/nouveau 2025-05-28 21:01:26 +00:00