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mesa/src/compiler
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Ian Romanick 412e29c277 nir/algebraic: Eliminate useless extract before unpack 
The shader helped for spills and fills is the big compute shader in Dirt
Showdown.  One of the shaders hurt for spills and fills on Broadwell is
the big compute shader in Bioshock Infinite, but combined with the
previous commit, it's still an impovement.

Tiger Lake
total instructions in shared programs: 21833218 -> 21832449 (<.01%)
instructions in affected programs: 66104 -> 65335 (-1.16%)
helped: 106
HURT: 14
helped stats (abs) min: 1 max: 67 x̄: 7.87 x̃: 5
helped stats (rel) min: 0.19% max: 5.76% x̄: 1.27% x̃: 0.95%
HURT stats (abs)   min: 1 max: 14 x̄: 4.64 x̃: 1
HURT stats (rel)   min: 0.19% max: 4.12% x̄: 1.41% x̃: 0.19%
95% mean confidence interval for instructions value: -8.51 -4.30
95% mean confidence interval for instructions %-change: -1.23% -0.69%
Instructions are helped.

total cycles in shared programs: 506180109 -> 506196314 (<.01%)
cycles in affected programs: 1671429 -> 1687634 (0.97%)
helped: 37
HURT: 84
helped stats (abs) min: 1 max: 490 x̄: 73.27 x̃: 24
helped stats (rel) min: 0.02% max: 7.98% x̄: 1.25% x̃: 0.41%
HURT stats (abs)   min: 1 max: 5000 x̄: 225.19 x̃: 8
HURT stats (rel)   min: 0.03% max: 10.22% x̄: 1.22% x̃: 0.42%
95% mean confidence interval for cycles value: 2.85 265.00
95% mean confidence interval for cycles %-change: 0.04% 0.88%
Cycles are HURT.

Ice Lake and Skylake had similar results. (Ice Lake shown)
total instructions in shared programs: 19961317 -> 19960543 (<.01%)
instructions in affected programs: 30268 -> 29494 (-2.56%)
helped: 39
HURT: 0
helped stats (abs) min: 1 max: 142 x̄: 19.85 x̃: 7
helped stats (rel) min: 0.19% max: 7.87% x̄: 2.33% x̃: 2.31%
95% mean confidence interval for instructions value: -29.46 -10.23
95% mean confidence interval for instructions %-change: -2.95% -1.71%
Instructions are helped.

total cycles in shared programs: 498863755 -> 498865843 (<.01%)
cycles in affected programs: 1831136 -> 1833224 (0.11%)
helped: 57
HURT: 65
helped stats (abs) min: 1 max: 1400 x̄: 128.93 x̃: 25
helped stats (rel) min: 0.05% max: 3.49% x̄: 0.89% x̃: 0.71%
HURT stats (abs)   min: 1 max: 1887 x̄: 145.18 x̃: 15
HURT stats (rel)   min: 0.02% max: 9.88% x̄: 1.83% x̃: 0.73%
95% mean confidence interval for cycles value: -58.30 92.53
95% mean confidence interval for cycles %-change: 0.16% 0.97%
Inconclusive result (value mean confidence interval includes 0).

total spills in shared programs: 8774 -> 8773 (-0.01%)
spills in affected programs: 20 -> 19 (-5.00%)
helped: 1
HURT: 0

total fills in shared programs: 9496 -> 9494 (-0.02%)
fills in affected programs: 40 -> 38 (-5.00%)
helped: 1
HURT: 0

Broadwell
total instructions in shared programs: 17859373 -> 17858548 (<.01%)
instructions in affected programs: 38452 -> 37627 (-2.15%)
helped: 31
HURT: 0
helped stats (abs) min: 1 max: 143 x̄: 26.61 x̃: 10
helped stats (rel) min: 0.19% max: 7.87% x̄: 2.57% x̃: 2.69%
95% mean confidence interval for instructions value: -39.79 -13.44
95% mean confidence interval for instructions %-change: -3.25% -1.89%
Instructions are helped.

total cycles in shared programs: 525858109 -> 525869236 (<.01%)
cycles in affected programs: 2058597 -> 2069724 (0.54%)
helped: 44
HURT: 75
helped stats (abs) min: 2 max: 1330 x̄: 187.84 x̃: 23
helped stats (rel) min: 0.04% max: 31.31% x̄: 2.13% x̃: 0.85%
HURT stats (abs)   min: 1 max: 3915 x̄: 258.56 x̃: 47
HURT stats (rel)   min: 0.02% max: 10.53% x̄: 2.81% x̃: 2.21%
95% mean confidence interval for cycles value: -26.06 213.07
95% mean confidence interval for cycles %-change: 0.19% 1.78%
Inconclusive result (value mean confidence interval includes 0).

total spills in shared programs: 25744 -> 25730 (-0.05%)
spills in affected programs: 1578 -> 1564 (-0.89%)
helped: 4
HURT: 2

total fills in shared programs: 31710 -> 31689 (-0.07%)
fills in affected programs: 4346 -> 4325 (-0.48%)
helped: 3
HURT: 3

Haswell
total instructions in shared programs: 16228399 -> 16227783 (<.01%)
instructions in affected programs: 22201 -> 21585 (-2.77%)
helped: 27
HURT: 0
helped stats (abs) min: 1 max: 68 x̄: 22.81 x̃: 11
helped stats (rel) min: 0.19% max: 7.87% x̄: 2.92% x̃: 2.86%
95% mean confidence interval for instructions value: -31.96 -13.66
95% mean confidence interval for instructions %-change: -3.68% -2.15%
Instructions are helped.

total cycles in shared programs: 538613967 -> 538701354 (0.02%)
cycles in affected programs: 1653044 -> 1740431 (5.29%)
helped: 36
HURT: 81
helped stats (abs) min: 2 max: 708 x̄: 104.50 x̃: 17
helped stats (rel) min: <.01% max: 15.01% x̄: 1.67% x̃: 0.65%
HURT stats (abs)   min: 1 max: 30100 x̄: 1125.30 x̃: 304
HURT stats (rel)   min: 0.02% max: 16.21% x̄: 8.98% x̃: 11.60%
95% mean confidence interval for cycles value: 23.78 1470.01
95% mean confidence interval for cycles %-change: 4.29% 7.12%
Cycles are HURT.

total spills in shared programs: 23418 -> 23409 (-0.04%)
spills in affected programs: 177 -> 168 (-5.08%)
helped: 2
HURT: 0

total fills in shared programs: 25919 -> 25896 (-0.09%)
fills in affected programs: 568 -> 545 (-4.05%)
helped: 3
HURT: 0

Ivy Bridge
total instructions in shared programs: 15265983 -> 15265759 (<.01%)
instructions in affected programs: 8418 -> 8194 (-2.66%)
helped: 5
HURT: 0
helped stats (abs) min: 18 max: 99 x̄: 44.80 x̃: 26
helped stats (rel) min: 1.74% max: 4.26% x̄: 3.12% x̃: 3.00%
95% mean confidence interval for instructions value: -86.29 -3.31
95% mean confidence interval for instructions %-change: -4.43% -1.81%
Instructions are helped.

total cycles in shared programs: 422930336 -> 422929589 (<.01%)
cycles in affected programs: 59347 -> 58600 (-1.26%)
helped: 3
HURT: 2
helped stats (abs) min: 72 max: 1060 x̄: 433.33 x̃: 168
helped stats (rel) min: 1.14% max: 3.48% x̄: 2.23% x̃: 2.06%
HURT stats (abs)   min: 265 max: 288 x̄: 276.50 x̃: 276
HURT stats (rel)   min: 4.79% max: 5.64% x̄: 5.22% x̃: 5.22%
95% mean confidence interval for cycles value: -829.08 530.28
95% mean confidence interval for cycles %-change: -4.43% 5.93%
Inconclusive result (value mean confidence interval includes 0).

total spills in shared programs: 4953 -> 4946 (-0.14%)
spills in affected programs: 344 -> 337 (-2.03%)
helped: 2
HURT: 0

total fills in shared programs: 5548 -> 5521 (-0.49%)
fills in affected programs: 838 -> 811 (-3.22%)
helped: 2
HURT: 0

No shader-db changes on any earlier Intel platform.

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4515>
2020-05-11 12:07:01 -07:00
..
glsl mesa: extend GLSLZeroInit semantics 2020-05-05 12:26:02 +02:00
nir nir/algebraic: Eliminate useless extract before unpack 2020-05-11 12:07:01 -07:00
spirv compiler/spirv: flag nclamp/nmin/nmax as exact 2020-05-07 10:39:19 +00:00
Android.glsl.gen.mk mesa: android: Remove unnecessary dependency tracking rules 2019-05-06 11:29:25 +00:00
Android.glsl.mk
Android.mk
Android.nir.gen.mk nir: Add missing dependency in Android.nir.gen.mk 2019-08-19 09:53:18 +03:00
Android.nir.mk android: fix libmesa_nir build 2017-07-21 08:47:56 +03:00
builtin_type_macros.h glsl_types: vec8/vec16 support 2018-03-25 10:42:54 -04:00
glsl_types.cpp glsl: rename has_implicit_uint_to_int_conversion to *_int_to_uint_* 2020-05-05 08:18:14 +00:00
glsl_types.h glsl: Add type queries for fp16+float and fp16+float+double 2020-03-09 16:31:08 +00:00
Makefile.sources nir: Move nir_lower_mediump_outputs from ir3 2020-04-27 16:32:24 +00:00
meson.build meson: inline inc_common 2020-03-28 21:36:54 +01:00
nir_types.cpp nir/lower_amul: fix slot calculation 2020-04-06 18:00:17 +00:00
nir_types.h nir/lower_amul: fix slot calculation 2020-04-06 18:00:17 +00:00
SConscript spirv: Fix building with SCons 2018-03-30 14:33:03 -06:00
SConscript.glsl Move compiler.h and imports.h/c from src/mesa/main into src/util 2020-03-27 21:00:09 +00:00
SConscript.nir nir: mako all the intrinsics 2018-03-27 08:36:37 -04:00
SConscript.spirv spirv: Fix building with SCons 2018-03-30 14:33:03 -06:00
shader_enums.c compiler: add VARYING_SLOT_VIEWPORT_MASK 2020-04-15 20:12:00 -04:00
shader_enums.h freedreno/ir3: Improve shader key normalization. 2020-05-01 16:26:32 +00:00
shader_info.h glsl: add NV_viewport_array2 support 2020-04-15 20:12:00 -04:00