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Ian Romanick 66fd4d72fd nir/algebraic: Mask with shifted constant instead of shift-then-mask 
shader-db:

All Intel platforms had similar results. (Lunar Lake shown)
total instructions in shared programs: 17088766 -> 17088765 (<.01%)
instructions in affected programs: 1375 -> 1374 (-0.07%)
helped: 1 / HURT: 1

total cycles in shared programs: 887873068 -> 887871748 (<.01%)
cycles in affected programs: 136402 -> 135082 (-0.97%)
helped: 2 / HURT: 0

fossil-db:

Lunar Lake
Totals:
Instrs: 924954240 -> 924939317 (-0.00%); split: -0.00%, +0.00%
Subgroup size: 40937696 -> 40937728 (+0.00%)
Cycle count: 106116946509 -> 106116637903 (-0.00%); split: -0.00%, +0.00%
Spill count: 3423930 -> 3423250 (-0.02%); split: -0.02%, +0.00%
Fill count: 4876960 -> 4876045 (-0.02%); split: -0.03%, +0.01%
Max live registers: 193882457 -> 193881816 (-0.00%); split: -0.00%, +0.00%
Max dispatch width: 49078640 -> 49078656 (+0.00%)
Non SSA regs after NIR: 231314214 -> 231314219 (+0.00%); split: -0.00%, +0.00%

Totals from 13809 (0.68% of 2019450) affected shaders:
Instrs: 25433084 -> 25418161 (-0.06%); split: -0.08%, +0.02%
Subgroup size: 32 -> 64 (+100.00%)
Cycle count: 1483550606 -> 1483242000 (-0.02%); split: -0.27%, +0.25%
Spill count: 41466 -> 40786 (-1.64%); split: -1.88%, +0.24%
Fill count: 74195 -> 73280 (-1.23%); split: -2.12%, +0.88%
Max live registers: 2326365 -> 2325724 (-0.03%); split: -0.05%, +0.02%
Max dispatch width: 234848 -> 234864 (+0.01%)
Non SSA regs after NIR: 3394104 -> 3394109 (+0.00%); split: -0.00%, +0.00%

Meteor Lake and DG2 had similar results. (Meteor Lake shown)
Totals:
Instrs: 997527742 -> 997524495 (-0.00%); split: -0.00%, +0.00%
Subgroup size: 27452928 -> 27452944 (+0.00%)
Cycle count: 93646717070 -> 93649738060 (+0.00%); split: -0.00%, +0.01%
Spill count: 3710125 -> 3709784 (-0.01%); split: -0.03%, +0.02%
Fill count: 5032819 -> 5033191 (+0.01%); split: -0.04%, +0.05%
Max live registers: 121648838 -> 121648528 (-0.00%); split: -0.00%, +0.00%
Max dispatch width: 37811544 -> 37811584 (+0.00%)
Non SSA regs after NIR: 255562054 -> 255565914 (+0.00%); split: -0.00%, +0.00%

Totals from 14438 (0.63% of 2281134) affected shaders:
Instrs: 25974222 -> 25970975 (-0.01%); split: -0.08%, +0.06%
Subgroup size: 16 -> 32 (+100.00%)
Cycle count: 1149710820 -> 1152731810 (+0.26%); split: -0.29%, +0.55%
Spill count: 44445 -> 44104 (-0.77%); split: -2.23%, +1.46%
Fill count: 76172 -> 76544 (+0.49%); split: -2.89%, +3.37%
Max live registers: 1237997 -> 1237687 (-0.03%); split: -0.04%, +0.02%
Max dispatch width: 123528 -> 123568 (+0.03%)
Non SSA regs after NIR: 3490757 -> 3494617 (+0.11%); split: -0.03%, +0.14%

Tiger Lake, Ice Lake, and Skylake had similar results. (Tiger Lake shown)
Totals:
Instrs: 1013364485 -> 1013342384 (-0.00%); split: -0.00%, +0.00%
Cycle count: 85509342602 -> 85500105656 (-0.01%); split: -0.02%, +0.01%
Spill count: 3903944 -> 3903350 (-0.02%); split: -0.02%, +0.01%
Fill count: 6801948 -> 6799368 (-0.04%); split: -0.05%, +0.01%
Max live registers: 122212165 -> 122211859 (-0.00%); split: -0.00%, +0.00%
Max dispatch width: 37805336 -> 37805472 (+0.00%)
Non SSA regs after NIR: 244624956 -> 244628603 (+0.00%); split: -0.00%, +0.00%

Totals from 14835 (0.65% of 2278397) affected shaders:
Instrs: 27522570 -> 27500469 (-0.08%); split: -0.10%, +0.02%
Cycle count: 1128820972 -> 1119584026 (-0.82%); split: -1.53%, +0.71%
Spill count: 46408 -> 45814 (-1.28%); split: -2.04%, +0.76%
Fill count: 99071 -> 96491 (-2.60%); split: -3.14%, +0.54%
Max live registers: 1287967 -> 1287661 (-0.02%); split: -0.04%, +0.02%
Max dispatch width: 126600 -> 126736 (+0.11%)
Non SSA regs after NIR: 3438628 -> 3442275 (+0.11%); split: -0.03%, +0.14%

Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38979>
2025-12-17 18:38:55 +00:00
..
amd ac,radv,radeonsi: add tracked register macros to common code 2025-12-17 15:09:26 +00:00
android_stub android_stub: fix missing prototypes issues 2025-12-02 20:03:02 +00:00
asahi hk: fix flrp lowering 2025-12-16 17:42:10 +00:00
broadcom v3dv: Enable TFU blits with raster destinations on 7.1 HW (RPi5) 2025-12-15 11:57:51 +00:00
c11 c11/threads: fix build on c23 2025-11-10 07:01:50 +10:00
compiler nir/algebraic: Mask with shifted constant instead of shift-then-mask 2025-12-17 18:38:55 +00:00
drm-shim drm-shim: handle DRM_CAP_ADDFB2_MODIFIERS 2025-11-24 12:34:08 +00:00
egl egl/x11: Fix memory leak when querying translated coord. 2025-12-11 14:58:59 +00:00
etnaviv Uprev Piglit to 2842979ebe03b99c33c3e49af5960c69be6c6d46 2025-12-12 21:45:24 +00:00
freedreno freedreno/crashdec: Fix crash with older kernels 2025-12-17 16:00:56 +00:00
gallium ac,radv,radeonsi: add tracked register macros to common code 2025-12-17 15:09:26 +00:00
gbm mesa: replace most occurrences of getenv() with os_get_option() 2025-11-06 04:36:13 +00:00
getopt
gfxstream meson: Remove VK_ICD_FILENAMES totally from source tree. 2025-12-10 14:46:11 +00:00
glx apple_cgl.c: Fix error: call to undeclared function 'os_get_option' 2025-11-20 18:39:19 +00:00
gtest
imagination pvr: copy WSI can_present_on_device function from PanVK 2025-12-17 14:53:39 +00:00
imgui imgui: Silence build warnings for imgui 2025-09-16 06:16:19 +00:00
intel anv/drirc: disable Xe2 CCS drm modifiers for GTK engine 2025-12-17 17:34:09 +00:00
kosmickrisp kk: Expose occlusionQueryPrecise 2025-12-16 19:05:16 +00:00
loader loader: Wrap nouveau_zink_predicate with HAVE_LIBDRM 2025-11-20 18:39:19 +00:00
mesa mesa/st: always override internal-format for 10-bit formats 2025-12-17 13:42:21 +00:00
microsoft treewide: use BITSET_*_COUNT 2025-12-16 17:42:10 +00:00
nouveau treewide: use BITSET_*_COUNT 2025-12-16 17:42:10 +00:00
panfrost panvk: remove AFBC header zeroing 2025-12-17 12:33:58 +00:00
poly nir: remove nir_io_add_const_offset_to_base 2025-11-29 00:16:38 +00:00
tool pps/meson: minor refactor for pps_deps 2025-11-08 18:39:00 -08:00
util anv/drirc: disable Xe2 CCS drm modifiers for GTK engine 2025-12-17 17:34:09 +00:00
virtio treewide: Use wsi_common_is_swapchain_image() helper 2025-12-11 20:20:39 +00:00
vulkan treewide: use BITSET_*_COUNT 2025-12-16 17:42:10 +00:00
x11 treewide: strip unneeded inc_gallium inc_gallium_aux 2025-11-13 22:01:43 +00:00
.clang-format util: Add sparse bitset data structure 2025-11-06 21:34:33 +00:00
meson.build kk: Add KosmicKrisp 2025-10-20 17:46:38 +00:00