Alyssa Rosenzweig e3328dfa2f brw: only initialize sample mask flag if needed ... This is a refinement of 7c129d9365 ("intel/brw/xe2+: Keep PS sample mask in the f1.0 register whether or not kill is used."). Rather than always insert this move, do so only when we'll actually read the register: for memory writes and for discards. This deletes an instruction from piles of fragment shaders. shader-db on LNL: total instructions in shared programs: 17134031 -> 17042706 (-0.53%) instructions in affected programs: 9065743 -> 8974418 (-1.01%) helped: 65045 HURT: 0 helped stats (abs) min: 1.0 max: 3.0 x̄: 1.40 x̃: 1 helped stats (rel) min: <.01% max: 50.00% x̄: 3.06% x̃: 1.64% 95% mean confidence interval for instructions value: -1.41 -1.40 95% mean confidence interval for instructions %-change: -3.10% -3.03% Instructions are helped. total cycles in shared programs: 885172098 -> 884835306 (-0.04%) cycles in affected programs: 590294230 -> 589957438 (-0.06%) helped: 53636 HURT: 4500 helped stats (abs) min: 2.0 max: 1126.0 x̄: 8.02 x̃: 4 helped stats (rel) min: <.01% max: 50.00% x̄: 1.24% x̃: 0.24% HURT stats (abs) min: 2.0 max: 7706.0 x̄: 20.77 x̃: 6 HURT stats (rel) min: <.01% max: 82.06% x̄: 1.09% x̃: 0.54% 95% mean confidence interval for cycles value: -6.15 -5.43 95% mean confidence interval for cycles %-change: -1.10% -1.02% Cycles are helped. LOST: 385 GAINED: 47 Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com> Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38665>		2025-11-26 16:53:36 +00:00
..
blorp	treewide: Replace calling to function ALIGN with align	2025-11-12 21:58:40 +00:00
ci	anv/ci: Run vkd3d job in parallel	2025-11-18 07:41:42 +00:00
common	treewide: Replace calling to function ALIGN with align	2025-11-12 21:58:40 +00:00
compiler	brw: only initialize sample mask flag if needed	2025-11-26 16:53:36 +00:00
decoder	intel/decoder: make libvulkan_intel to depend on stub decoder when buildtyle=release.	2025-11-24 16:40:02 +08:00
dev	intel/isl: add INTEL_DEBUG=noccs-modifier to disable CCS modifiers	2025-11-13 09:52:27 +00:00
ds	anv: track descriptor mode in SBA tracepoint	2025-11-17 15:06:55 +00:00
executor	meson: make dep_lua a disabler	2025-11-21 21:48:57 +00:00
genxml	intel/genxml: Update CS_CHICKEN1 register for gfx20	2025-11-13 23:05:01 +00:00
isl	intel/isl: add INTEL_DEBUG=noccs-modifier to disable CCS modifiers	2025-11-13 09:52:27 +00:00
mda	intel/mda: Use a vector to track the contents variable	2025-10-30 20:03:24 +00:00
nullhw-layer	build: avoid redefining unreachable() which is standard in C23	2025-07-31 17:49:42 +00:00
perf	intel/perf: Update perf scripts to get additional performance counters	2025-10-23 16:59:09 +00:00
shaders	util/glsl2spirv: Use better glslang flag for -Olib	2025-11-20 02:14:50 +00:00
tools	treewide: Replace calling to function ALIGN with align	2025-11-12 21:58:40 +00:00
vulkan	anv: remove errors on format queries	2025-11-26 16:06:57 +00:00
vulkan_hasvk	vulkan: Optionally share one JSON manifest per driver between architectures	2025-11-24 19:05:57 +00:00
meson.build	brw: Move into a new src/intel/compiler/brw subdirectory	2025-10-09 07:01:47 +00:00