1bdfc6d7cb
nir/algebraic: Add lowering for 64-bit usub_sat
...
v2: Rebase on 272e927d0ehttps://gitlab.freedesktop.org/mesa/mesa/merge_requests/767 >
2020-01-23 00:18:57 +00:00
a483771045
nir/algebraic: Add lowering for 64-bit hadd and rhadd
...
v2: Rebase on 272e927d0ehttps://gitlab.freedesktop.org/mesa/mesa/merge_requests/767 >
2020-01-23 00:18:57 +00:00
ea435560ee
nir/algebraic: Add lowering for uabs_usub and uabs_isub
...
v2: Remove some rebase failures noticed by Caio.
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/767 >
2020-01-23 00:18:57 +00:00
22c5c54a4f
nir/algebraic: sqrt(x)*sqrt(x) -> fabs(x)
...
total instructions in shared programs: 12840840 -> 12839341 (-0.01%)
instructions in affected programs: 122581 -> 121082 (-1.22%)
helped: 559
HURT: 0
total cycles in shared programs: 302505756 -> 302490031 (<.01%)
cycles in affected programs: 2022900 -> 2007175 (-0.78%)
helped: 1090
HURT: 130
Signed-off-by: Elie Tournier <elie.tournier@collabora.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/948 >
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/948 >
2020-01-15 00:30:52 +00:00
6f394343b1
nir/algebraic: i2f(f2i()) -> trunc()
...
total instructions in shared programs: 12840968 -> 12840784 (<.01%)
instructions in affected programs: 17886 -> 17702 (-1.03%)
helped: 77
HURT: 0
total cycles in shared programs: 302508917 -> 302505592 (<.01%)
cycles in affected programs: 249964 -> 246639 (-1.33%)
helped: 70
HURT: 7
Signed-off-by: Elie Tournier <elie.tournier@collabora.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/948 >
2020-01-15 00:30:52 +00:00
cc3ef3643a
nir/algebraic: a & ~(a >> 31) -> imax(a, 0)
...
Found in some Doom shaders
Totals from affected shaders:
SGPRS: 30056 -> 30064 (0.03 %)
VGPRS: 28024 -> 28024 (0.00 %)
Spilled SGPRs: 0 -> 0 (0.00 %)
Spilled VGPRs: 0 -> 0 (0.00 %)
Code Size: 4278648 -> 4270852 (-0.18 %) bytes
Max Waves: 1476 -> 1476 (0.00 %)
Instructions: 835287 -> 833338 (-0.23 %)
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3089 >
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3089 >
2020-01-14 17:54:40 +00:00
004797002f
nir: add option to lower half packing opcodes
...
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3106 >
2019-12-16 19:20:07 -05:00
fbd5359a0a
nir/algebraic: Rearrange bcsel sequences generated by nir_opt_peephole_select
...
Reviewed-by: Matt Turner <mattst88@gmail.com>
All Intel platforms had similar results. (Ice Lake shown)
total instructions in shared programs: 14660366 -> 14653437 (-0.05%)
instructions in affected programs: 316166 -> 309237 (-2.19%)
helped: 905
HURT: 10
helped stats (abs) min: 1 max: 36 x̄: 7.67 x̃: 6
helped stats (rel) min: 0.13% max: 18.75% x̄: 4.28% x̃: 3.60%
HURT stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1
HURT stats (rel) min: 0.10% max: 1.33% x̄: 0.70% x̃: 0.97%
95% mean confidence interval for instructions value: -7.91 -7.23
95% mean confidence interval for instructions %-change: -4.46% -3.99%
Instructions are helped.
total cycles in shared programs: 228571646 -> 228549759 (<.01%)
cycles in affected programs: 56239919 -> 56218032 (-0.04%)
helped: 681
HURT: 216
helped stats (abs) min: 1 max: 5156 x̄: 45.49 x̃: 10
helped stats (rel) min: <.01% max: 10.45% x̄: 1.29% x̃: 0.65%
HURT stats (abs) min: 1 max: 320 x̄: 42.09 x̃: 14
HURT stats (rel) min: <.01% max: 37.04% x̄: 1.38% x̃: 0.49%
95% mean confidence interval for cycles value: -41.51 -7.29
95% mean confidence interval for cycles %-change: -0.80% -0.49%
Cycles are helped.
LOST: 1
GAINED: 0
2019-12-02 16:46:20 -08:00
780b5c1037
nir/algebraic: Simplify some Inf and NaN avoidance code
...
Since a is non-negative, neither fsqrt nor frsq should return NaN. frsq
should only return Inf when fsqrt returns 0.
The changes are pretty small, but this turns a few hundred hurt shaders
in the next patch into helped shaders.
An alternative to the intBitsToFloat is to import numpy and do
np.finfo(np.float32).max. That's more explicit, but we may also want to
have specific bit encodings of float values later. I could be convinced
either way, but intBitsToFloat(0x7f7fffff) was what I implemented first.
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
All Gen7+ platforms had similar results. (Ice Lake shown)
total instructions in shared programs: 14661140 -> 14661104 (<.01%)
instructions in affected programs: 7520 -> 7484 (-0.48%)
helped: 36
HURT: 0
helped stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1
helped stats (rel) min: 0.32% max: 0.61% x̄: 0.49% x̃: 0.52%
95% mean confidence interval for instructions value: -1.00 -1.00
95% mean confidence interval for instructions %-change: -0.52% -0.47%
Instructions are helped.
total cycles in shared programs: 228585416 -> 228584806 (<.01%)
cycles in affected programs: 56321 -> 55711 (-1.08%)
helped: 32
HURT: 0
helped stats (abs) min: 2 max: 98 x̄: 19.06 x̃: 10
helped stats (rel) min: 0.08% max: 6.41% x̄: 1.09% x̃: 0.65%
95% mean confidence interval for cycles value: -28.32 -9.80
95% mean confidence interval for cycles %-change: -1.63% -0.54%
Cycles are helped.
Sandy Bridge
total cycles in shared programs: 152991077 -> 152991075 (<.01%)
cycles in affected programs: 11525 -> 11523 (-0.02%)
helped: 2
HURT: 2
helped stats (abs) min: 2 max: 4 x̄: 3.00 x̃: 3
helped stats (rel) min: 0.07% max: 0.11% x̄: 0.09% x̃: 0.09%
HURT stats (abs) min: 2 max: 2 x̄: 2.00 x̃: 2
HURT stats (rel) min: 0.08% max: 0.08% x̄: 0.08% x̃: 0.08%
95% mean confidence interval for cycles value: -5.27 4.27
95% mean confidence interval for cycles %-change: -0.16% 0.15%
Inconclusive result (value mean confidence interval includes 0).
No changes on Iron Lake or GM45.
2019-12-02 16:46:20 -08:00
9be4a422a0
nir/algebraic: Mark other comparison exact when removing a == a
...
This prevents some additional optimizations that would change the
original result. This includes things like (b < a && b < c) => b <
min(a, c) and !(a < b) => b >= a. Both of these optimizations were
specifically observed in the piglit tests added in piglit!160.
This was discovered while investigating
https://gitlab.freedesktop.org/mesa/mesa/issues/1958 . However, the
problem in that issue was Chrome or Angle is replacing calls to isnan()
with some stuff that we (correctly) optimize to false. If they had left
the calls to isnan() alone, everything would have just worked.
No shader-db changes on any Intel platform.
I also tried marking the comparison generated by the isnan() function
precise. The precise marker "infects" every computation involved in
calculating the parameter to the isnan() function, and this severely
hurt all of the (few) shaders in shader-db that use isnan().
I also considered adding a new ir_unop_isnan opcode that would implement
the functionality. During GLSL IR-to-NIR translation, the resulting
comparison operation would be marked exact (and the samething would need
to happen in SPIR-V translation).
This approach taken by this patch seemed easier, but we may want to do
the ir_unop_isnan thing anyway.
Fixes: d55835b8bd
2019-11-04 14:05:49 -08:00
ea19f2fb68
nir/algebraic: Add the ability to mark a replacement as exact
...
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
2019-11-04 14:05:49 -08:00
5e08f070f0
nir: add nir_lower_amul pass
...
Lower amul to either imul or imul24, depending on whether 24b is enough
bits to calculate an offset within the thing being dereferenced.
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-10-18 15:08:54 -07:00
1bdde31392
nir: add address calc related opt rules
...
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>
2019-10-18 15:08:54 -07:00
6320e37d4b
nir: add amul instruction
...
Used for address/offset calculation (ie. array derefs), where we can
potentially use less than 32b for the multiply of array idx by element
size. For backends that support `imul24`, this gives a lowering pass
an easy way to find multiplies that potentially can be converted to
`imul24`.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>
2019-10-18 15:08:54 -07:00
239423d234
nir: Remove unnecessary subtraction optimizations
...
These optimizations are already covered after lowering.
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
2019-09-30 09:44:10 +00:00
99848a57b7
nir: recombine nir_op_*sub when lower_sub = false
...
There are some optimizations which are only implemented for additions
and some optimizations which assume that subtractions have been lowered.
By lowering all subtractions first and later recombine for backends
which prefer this option, we don't have to implement them twice.
This patch also moves lower_negate to nir_opt_algebraic_late() to enable
these optimizations for backends which make use of it.
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
2019-09-30 09:44:10 +00:00
317a88b920
nir/algebraic: Additional D3D Boolean optimization
...
I observed this pattern in several shaders in Hand of Fate 2 while
investigating bugzilla #111490 . This also led to the related
bugzilla #111578 . The shaders from HoF2 are *not* in shader-db.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Skylake and Ice Lake had similar results. (Ice Lake shown)
total instructions in shared programs: 16222621 -> 16205419 (-0.11%)
instructions in affected programs: 798418 -> 781216 (-2.15%)
helped: 548
HURT: 0
helped stats (abs) min: 2 max: 158 x̄: 31.39 x̃: 35
helped stats (rel) min: 0.45% max: 28.64% x̄: 2.83% x̃: 2.09%
95% mean confidence interval for instructions value: -33.22 -29.56
95% mean confidence interval for instructions %-change: -3.11% -2.56%
Instructions are helped.
total cycles in shared programs: 364676209 -> 363345763 (-0.36%)
cycles in affected programs: 112810504 -> 111480058 (-1.18%)
helped: 546
HURT: 7
helped stats (abs) min: 2 max: 118913 x̄: 2439.77 x̃: 2340
helped stats (rel) min: 0.08% max: 37.56% x̄: 1.46% x̃: 1.08%
HURT stats (abs) min: 2 max: 770 x̄: 238.00 x̃: 43
HURT stats (rel) min: 0.02% max: 11.24% x̄: 3.71% x̃: 0.35%
95% mean confidence interval for cycles value: -2884.33 -1927.41
95% mean confidence interval for cycles %-change: -1.59% -1.21%
Cycles are helped.
total spills in shared programs: 8870 -> 8514 (-4.01%)
spills in affected programs: 1230 -> 874 (-28.94%)
helped: 161
HURT: 0
total fills in shared programs: 21901 -> 21348 (-2.52%)
fills in affected programs: 2120 -> 1567 (-26.08%)
helped: 155
HURT: 5
Broadwell and Haswell had similar results. (Broadwell shown)
total instructions in shared programs: 14994910 -> 14975495 (-0.13%)
instructions in affected programs: 839033 -> 819618 (-2.31%)
helped: 548
HURT: 0
helped stats (abs) min: 2 max: 299 x̄: 35.43 x̃: 49
helped stats (rel) min: 0.39% max: 19.89% x̄: 2.91% x̃: 2.22%
95% mean confidence interval for instructions value: -37.46 -33.40
95% mean confidence interval for instructions %-change: -3.12% -2.70%
Instructions are helped.
total cycles in shared programs: 386032453 -> 384450722 (-0.41%)
cycles in affected programs: 117807357 -> 116225626 (-1.34%)
helped: 547
HURT: 6
helped stats (abs) min: 2 max: 22096 x̄: 2892.01 x̃: 3926
helped stats (rel) min: 0.17% max: 10.34% x̄: 1.56% x̃: 1.31%
HURT stats (abs) min: 4 max: 60 x̄: 32.83 x̃: 29
HURT stats (rel) min: 0.38% max: 12.79% x̄: 5.86% x̃: 4.65%
95% mean confidence interval for cycles value: -3060.28 -2660.27
95% mean confidence interval for cycles %-change: -1.59% -1.37%
Cycles are helped.
total spills in shared programs: 23372 -> 21869 (-6.43%)
spills in affected programs: 11730 -> 10227 (-12.81%)
helped: 352
HURT: 0
total fills in shared programs: 34747 -> 35351 (1.74%)
fills in affected programs: 11013 -> 11617 (5.48%)
helped: 3
HURT: 347
Ivy Bridge and Sandybridge had similar results. (Ivy Bridge shown)
total instructions in shared programs: 11956420 -> 11956126 (<.01%)
instructions in affected programs: 14898 -> 14604 (-1.97%)
helped: 98
HURT: 0
helped stats (abs) min: 3 max: 3 x̄: 3.00 x̃: 3
helped stats (rel) min: 1.30% max: 3.57% x̄: 2.08% x̃: 2.00%
95% mean confidence interval for instructions value: -3.00 -3.00
95% mean confidence interval for instructions %-change: -2.18% -1.98%
Instructions are helped.
total cycles in shared programs: 178791217 -> 178790792 (<.01%)
cycles in affected programs: 149763 -> 149338 (-0.28%)
helped: 91
HURT: 7
helped stats (abs) min: 3 max: 107 x̄: 20.63 x̃: 16
helped stats (rel) min: 0.13% max: 6.91% x̄: 1.40% x̃: 1.18%
HURT stats (abs) min: 3 max: 322 x̄: 207.43 x̃: 322
HURT stats (rel) min: 0.14% max: 19.85% x̄: 12.73% x̃: 17.41%
95% mean confidence interval for cycles value: -18.94 10.27
95% mean confidence interval for cycles %-change: -1.28% 0.49%
Inconclusive result (value mean confidence interval includes 0).
2019-09-19 14:22:22 -07:00
92f70df8c3
nir/algebraic: Do not apply late DPH optimization in vertex processing stages
...
Some shaders do not use 'invariant' in vertex and (possibly) geometry
shader stages on some outputs that are intended to be invariant. For
various reasons, this optimization may not be fully applied in all
shaders used for different rendering passes of the same geometry. This
can result in Z-fighting artifacts (at best). For now, disable this
optimization in these stages.
In tessellation stages applications seem to use 'precise' when
necessary, so allow the optimization in those stages.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111490
Fixes: 09705747d7
2019-09-19 14:21:31 -07:00
3f782cdd25
nir/algebraic: mark float optimizations returning one parameter as inexact
...
With the arrival of VK_KHR_shader_float_controls algebraic
optimizations for float types of the form (('fop', a, b), a) become
inexact depending on the execution mode.
For example, if we have activated SHADER_DENORM_FLUSH_TO_ZERO, in case
of a denorm value for the "a" parameter, we cannot return it still as
a denorm, it needs to be flushed to zero. Therefore, we mark now all
those operations as inexact.
Suggested-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
2019-09-17 23:39:18 +03:00
e07248d2a8
nir/algebraic: Clean up value range analysis-based optimizations
...
Fix the a / b ordering in some compares. Delete duplicate patterns.
Add a table explaining things. While I was cleaning this up, I managed
to confuse myself. The table helped sort that out.
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
2019-08-29 13:15:52 -07:00
ccb236d1bc
nir/algebraic: Mark some value range analysis-based optimizations imprecise
...
This didn't fix bug #111308 , but it was found will trying to find the
actual cause of that bug.
Fixes piglit tests (new in piglit!110):
- fs-fract-of-NaN.shader_test
- fs-lt-nan-tautology.shader_test
- fs-ge-nan-tautology.shader_test
No shader-db changes on any Intel platform.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111308
Fixes: b77070e293
2019-08-29 13:15:52 -07:00
d3fd1c761a
nir/algrbraic: Don't optimize open-coded bitfield reverse when lowering is enabled
...
This caused a problem on Sandybridge where an open-coded
bitfieldReverse() function could be optimized to a
nir_op_bitfield_reverse that would generate an unsupported BFREV
instruction in the backend. This was encountered in some Unreal4 tech
demos in shader-db. The bug was not previously noticed because we don't
actually try to run those demos on Sandybridge.
The fixes tag is a bit a lie. The actual bug was introduced about
26,000 commits earlier in 371c4b3c487afa26d4e3
2019-08-28 11:38:51 -07:00
7fa1740035
nir/algebraic: some subtraction optimizations
...
Changes with RADV/ACO:
Totals from affected shaders:
SGPRS: 444087 -> 455543 (2.58 %)
VGPRS: 436468 -> 436768 (0.07 %)
Spilled SGPRs: 0 -> 0 (0.00 %)
Spilled VGPRs: 0 -> 0 (0.00 %)
Private memory VGPRs: 0 -> 0 (0.00 %)
Scratch size: 0 -> 0 (0.00 %) dwords per thread
Code Size: 13448928 -> 13353520 (-0.71 %) bytes
LDS: 0 -> 0 (0.00 %) blocks
Max Waves: 68060 -> 67979 (-0.12 %)
Wait states: 0 -> 0 (0.00 %)
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
2019-08-21 08:51:49 +00:00
0a790c3019
nir/algebraic: add a few masking-before-unpack optimizations
...
Helps some Dawn of War 3 and F1 2017 shaders with ACO:
Totals from affected shaders:
SGPRS: 2136 -> 2128 (-0.37 %)
VGPRS: 1624 -> 1628 (0.25 %)
Spilled SGPRs: 0 -> 0 (0.00 %)
Spilled VGPRs: 0 -> 0 (0.00 %)
Private memory VGPRs: 0 -> 0 (0.00 %)
Scratch size: 0 -> 0 (0.00 %) dwords per thread
Code Size: 168068 -> 164332 (-2.22 %) bytes
LDS: 44 -> 44 (0.00 %) blocks
Max Waves: 222 -> 221 (-0.45 %)
Wait states: 0 -> 0 (0.00 %)
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2019-08-16 12:13:01 +01:00
0e6581b87d
nir/algebraic: Reassociate shift-by-constant of shift-by-constant
...
v2: After some review discussion with Alyssa, the replacements now
correct account for cases where (b+c) >= bitsize.
v3: Use a temporary to simplify the Python code quite a bit. Suggested
by Jason.
Haswell and all Gen8+ platforms had similar results. (Ice Lake shown)
total instructions in shared programs: 16251155 -> 16249576 (<.01%)
instructions in affected programs: 232627 -> 231048 (-0.68%)
helped: 547
HURT: 1
helped stats (abs) min: 1 max: 15 x̄: 2.89 x̃: 3
helped stats (rel) min: 0.04% max: 7.84% x̄: 1.14% x̃: 1.06%
HURT stats (abs) min: 2 max: 2 x̄: 2.00 x̃: 2
HURT stats (rel) min: 0.12% max: 0.12% x̄: 0.12% x̃: 0.12%
95% mean confidence interval for instructions value: -3.12 -2.65
95% mean confidence interval for instructions %-change: -1.20% -1.06%
Instructions are helped.
total cycles in shared programs: 365924392 -> 365372103 (-0.15%)
cycles in affected programs: 59207053 -> 58654764 (-0.93%)
helped: 497
HURT: 34
helped stats (abs) min: 1 max: 29300 x̄: 1118.16 x̃: 16
helped stats (rel) min: <.01% max: 10.59% x̄: 1.82% x̃: 1.82%
HURT stats (abs) min: 2 max: 424 x̄: 101.03 x̃: 63
HURT stats (rel) min: 0.07% max: 46.17% x̄: 4.72% x̃: 2.06%
95% mean confidence interval for cycles value: -1426.41 -653.77
95% mean confidence interval for cycles %-change: -1.66% -1.15%
Cycles are helped.
total spills in shared programs: 8870 -> 8871 (0.01%)
spills in affected programs: 104 -> 105 (0.96%)
helped: 0
HURT: 1
Ivy Bridge and all pre-Gen7 platforms had similar results. (Ivy Bridge shown)
total instructions in shared programs: 11956236 -> 11955635 (<.01%)
instructions in affected programs: 94110 -> 93509 (-0.64%)
helped: 106
HURT: 0
helped stats (abs) min: 1 max: 14 x̄: 5.67 x̃: 4
helped stats (rel) min: 0.12% max: 4.71% x̄: 1.96% x̃: 0.76%
95% mean confidence interval for instructions value: -6.62 -4.72
95% mean confidence interval for instructions %-change: -2.27% -1.64%
Instructions are helped.
total cycles in shared programs: 179296340 -> 178788044 (-0.28%)
cycles in affected programs: 51009603 -> 50501307 (-1.00%)
helped: 82
HURT: 7
helped stats (abs) min: 5 max: 27820 x̄: 6199.00 x̃: 16
helped stats (rel) min: 0.30% max: 8.16% x̄: 2.58% x̃: 3.11%
HURT stats (abs) min: 2 max: 8 x̄: 3.14 x̃: 2
HURT stats (rel) min: 0.02% max: 1.40% x̄: 0.34% x̃: 0.10%
95% mean confidence interval for cycles value: -7649.38 -3773.00
95% mean confidence interval for cycles %-change: -2.71% -1.99%
Cycles are helped.
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> [v2]
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2019-08-14 11:15:37 -07:00
73aaeac0a3
nir/algebraic: Reassociate add-and-shift to be shift-and-add
...
A common thing in many shaders:
uniform vs { vec4 bones[...]; };
...
x = some_calculation(bones[i + 0]);
y = some_calculation(bones[i + 1]);
z = some_calculation(bones[i + 2]);
This turns into stuff like
vec1 32 ssa_12 = iadd ssa_11, ssa_0
vec1 32 ssa_13 = ishl ssa_12, ssa_3
vec1 32 ssa_14 = intrinsic load_ssbo (ssa_7, ssa_13) (16, 4, 0)
vec1 32 ssa_15 = iadd ssa_11, ssa_1
vec1 32 ssa_16 = ishl ssa_15, ssa_3
vec1 32 ssa_17 = intrinsic load_ssbo (ssa_7, ssa_16) (16, 4, 0)
vec1 32 ssa_18 = iadd ssa_11, ssa_2
vec1 32 ssa_19 = ishl ssa_18, ssa_3
vec1 32 ssa_20 = intrinsic load_ssbo (ssa_7, ssa_19) (16, 4, 0)
By reassociating the shift and the add, we can reduce this to
vec1 32 ssa_12 = ishl ssa_11, ssa_3
vec1 32 ssa_13 = iadd ssa_12, ssa_0
vec1 32 ssa_14 = intrinsic load_ssbo (ssa_7, ssa_13) (16, 4, 0)
vec1 32 ssa_16 = iadd ssa_12, ssa_1
vec1 32 ssa_17 = intrinsic load_ssbo (ssa_7, ssa_16) (16, 4, 0)
vec1 32 ssa_19 = iadd ssa_12, ssa_2
vec1 32 ssa_20 = intrinsic load_ssbo (ssa_7, ssa_19) (16, 4, 0)
v2: Add some commentary from Rhys Perry's nearly identical patch.
All Intel platforms had similar results. (Ice Lake shown)
total instructions in shared programs: 16277758 -> 16250704 (-0.17%)
instructions in affected programs: 1440284 -> 1413230 (-1.88%)
helped: 4920
HURT: 6
helped stats (abs) min: 1 max: 69 x̄: 5.50 x̃: 4
helped stats (rel) min: 0.10% max: 18.33% x̄: 2.21% x̃: 1.79%
HURT stats (abs) min: 1 max: 12 x̄: 4.50 x̃: 3
HURT stats (rel) min: 0.18% max: 3.23% x̄: 1.91% x̃: 2.55%
95% mean confidence interval for instructions value: -5.67 -5.31
95% mean confidence interval for instructions %-change: -2.26% -2.16%
Instructions are helped.
total cycles in shared programs: 367118526 -> 365895358 (-0.33%)
cycles in affected programs: 93504145 -> 92280977 (-1.31%)
helped: 2754
HURT: 1269
helped stats (abs) min: 1 max: 47039 x̄: 460.66 x̃: 16
helped stats (rel) min: <.01% max: 34.93% x̄: 3.77% x̃: 1.12%
HURT stats (abs) min: 1 max: 1500 x̄: 35.85 x̃: 9
HURT stats (rel) min: 0.01% max: 17.35% x̄: 2.18% x̃: 0.75%
95% mean confidence interval for cycles value: -387.31 -220.78
95% mean confidence interval for cycles %-change: -2.11% -1.68%
Cycles are helped.
LOST: 1
GAINED: 1
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2019-08-14 11:15:32 -07:00
5544b2cbbd
nir/algebraic: Use value range analysis to eliminate useless unary ops
...
Sandy Bridge is the big winner because it lies at something of a
crossroads. It supports a fairly high OpenGL version, and it still has
the old style math box. The high OpenGL version means a lot more
shaders can run on it. The old style math box means extra moves are
necessary to resolve source modifiers on operands to complex math
instructions like COS, SQRT, and RCP.
v2: Remove a couple patterns that are now redundant.
All Gen7+ platforms had similar results. (Ice Lake shown)
total instructions in shared programs: 16282006 -> 16278207 (-0.02%)
instructions in affected programs: 174555 -> 170756 (-2.18%)
helped: 661
HURT: 0
helped stats (abs) min: 1 max: 36 x̄: 5.75 x̃: 3
helped stats (rel) min: 0.06% max: 23.68% x̄: 2.81% x̃: 1.94%
95% mean confidence interval for instructions value: -6.16 -5.34
95% mean confidence interval for instructions %-change: -3.02% -2.60%
Instructions are helped.
total cycles in shared programs: 367168597 -> 367134284 (<.01%)
cycles in affected programs: 1105276 -> 1070963 (-3.10%)
helped: 460
HURT: 150
helped stats (abs) min: 1 max: 568 x̄: 96.60 x̃: 82
helped stats (rel) min: 0.02% max: 32.50% x̄: 7.99% x̃: 4.27%
HURT stats (abs) min: 1 max: 901 x̄: 67.49 x̃: 39
HURT stats (rel) min: 0.07% max: 20.00% x̄: 4.90% x̃: 4.22%
95% mean confidence interval for cycles value: -65.68 -46.82
95% mean confidence interval for cycles %-change: -5.59% -4.05%
Cycles are helped.
Sandy Bridge
total instructions in shared programs: 10824272 -> 10802557 (-0.20%)
instructions in affected programs: 1237988 -> 1216273 (-1.75%)
helped: 8199
HURT: 0
helped stats (abs) min: 1 max: 41 x̄: 2.65 x̃: 2
helped stats (rel) min: 0.12% max: 20.00% x̄: 2.04% x̃: 1.73%
95% mean confidence interval for instructions value: -2.70 -2.59
95% mean confidence interval for instructions %-change: -2.07% -2.00%
Instructions are helped.
total cycles in shared programs: 154009894 -> 153843598 (-0.11%)
cycles in affected programs: 10650486 -> 10484190 (-1.56%)
helped: 4973
HURT: 1533
helped stats (abs) min: 1 max: 3904 x̄: 40.20 x̃: 20
helped stats (rel) min: 0.02% max: 41.72% x̄: 2.63% x̃: 1.67%
HURT stats (abs) min: 1 max: 453 x̄: 21.94 x̃: 8
HURT stats (rel) min: 0.02% max: 41.91% x̄: 1.54% x̃: 0.58%
95% mean confidence interval for cycles value: -28.02 -23.10
95% mean confidence interval for cycles %-change: -1.74% -1.56%
Cycles are helped.
LOST: 0
GAINED: 2
GM45 and Iron Lake had similar results. (Iron Lake shown)
total instructions in shared programs: 8135196 -> 8134888 (<.01%)
instructions in affected programs: 31920 -> 31612 (-0.96%)
helped: 169
HURT: 0
helped stats (abs) min: 1 max: 12 x̄: 1.82 x̃: 2
helped stats (rel) min: 0.43% max: 3.23% x̄: 1.23% x̃: 1.16%
95% mean confidence interval for instructions value: -2.01 -1.64
95% mean confidence interval for instructions %-change: -1.32% -1.15%
Instructions are helped.
total cycles in shared programs: 188575724 -> 188574092 (<.01%)
cycles in affected programs: 406840 -> 405208 (-0.40%)
helped: 169
HURT: 0
helped stats (abs) min: 4 max: 72 x̄: 9.66 x̃: 10
helped stats (rel) min: 0.07% max: 2.16% x̄: 0.57% x̃: 0.47%
95% mean confidence interval for cycles value: -10.72 -8.59
95% mean confidence interval for cycles %-change: -0.63% -0.50%
Cycles are helped.
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
2019-08-05 20:14:14 -07:00
8d14380971
nir/algebraic: Use value range analysis to convert fmin to fsat
...
All Gen8+ platforms had similar results. (Ice Lake shown)
total instructions in shared programs: 16297320 -> 16282006 (-0.09%)
instructions in affected programs: 2434498 -> 2419184 (-0.63%)
helped: 8091
HURT: 1
helped stats (abs) min: 1 max: 51 x̄: 1.89 x̃: 2
helped stats (rel) min: 0.04% max: 14.29% x̄: 0.98% x̃: 0.95%
HURT stats (abs) min: 7 max: 7 x̄: 7.00 x̃: 7
HURT stats (rel) min: 0.28% max: 0.28% x̄: 0.28% x̃: 0.28%
95% mean confidence interval for instructions value: -1.94 -1.85
95% mean confidence interval for instructions %-change: -0.99% -0.96%
Instructions are helped.
total cycles in shared programs: 367221624 -> 367168597 (-0.01%)
cycles in affected programs: 126409635 -> 126356608 (-0.04%)
helped: 5612
HURT: 1023
helped stats (abs) min: 1 max: 2332 x̄: 31.11 x̃: 16
helped stats (rel) min: <.01% max: 30.31% x̄: 1.69% x̃: 1.42%
HURT stats (abs) min: 1 max: 2372 x̄: 118.84 x̃: 16
HURT stats (rel) min: <.01% max: 46.98% x̄: 1.46% x̃: 0.35%
95% mean confidence interval for cycles value: -11.52 -4.46
95% mean confidence interval for cycles %-change: -1.26% -1.14%
Cycles are helped.
total spills in shared programs: 8868 -> 8870 (0.02%)
spills in affected programs: 28 -> 30 (7.14%)
helped: 0
HURT: 1
total fills in shared programs: 21903 -> 21904 (<.01%)
fills in affected programs: 42 -> 43 (2.38%)
helped: 0
HURT: 1
Haswell
total instructions in shared programs: 13353925 -> 13338728 (-0.11%)
instructions in affected programs: 2265850 -> 2250653 (-0.67%)
helped: 8127
HURT: 5
helped stats (abs) min: 1 max: 51 x̄: 1.88 x̃: 2
helped stats (rel) min: 0.04% max: 20.00% x̄: 1.13% x̃: 1.07%
HURT stats (abs) min: 5 max: 16 x̄: 9.00 x̃: 6
HURT stats (rel) min: 0.19% max: 0.52% x̄: 0.35% x̃: 0.28%
95% mean confidence interval for instructions value: -1.91 -1.83
95% mean confidence interval for instructions %-change: -1.15% -1.11%
Instructions are helped.
total cycles in shared programs: 375535444 -> 375536343 (<.01%)
cycles in affected programs: 131206582 -> 131207481 (<.01%)
helped: 5590
HURT: 1055
helped stats (abs) min: 1 max: 2844 x̄: 34.15 x̃: 16
helped stats (rel) min: <.01% max: 21.57% x̄: 2.08% x̃: 1.60%
HURT stats (abs) min: 1 max: 2487 x̄: 181.78 x̃: 21
HURT stats (rel) min: <.01% max: 40.66% x̄: 1.96% x̃: 0.37%
95% mean confidence interval for cycles value: -4.74 5.01
95% mean confidence interval for cycles %-change: -1.51% -1.37%
Inconclusive result (value mean confidence interval includes 0).
total spills in shared programs: 23401 -> 23407 (0.03%)
spills in affected programs: 248 -> 254 (2.42%)
helped: 2
HURT: 5
total fills in shared programs: 34850 -> 34845 (-0.01%)
fills in affected programs: 383 -> 378 (-1.31%)
helped: 2
HURT: 5
Ivy Bridge
total instructions in shared programs: 11975423 -> 11968117 (-0.06%)
instructions in affected programs: 845703 -> 838397 (-0.86%)
helped: 4071
HURT: 0
helped stats (abs) min: 1 max: 51 x̄: 1.79 x̃: 1
helped stats (rel) min: 0.08% max: 8.21% x̄: 1.04% x̃: 0.93%
95% mean confidence interval for instructions value: -1.87 -1.71
95% mean confidence interval for instructions %-change: -1.06% -1.02%
Instructions are helped.
total cycles in shared programs: 179674318 -> 179635552 (-0.02%)
cycles in affected programs: 5100065 -> 5061299 (-0.76%)
helped: 2650
HURT: 611
helped stats (abs) min: 1 max: 900 x̄: 21.85 x̃: 16
helped stats (rel) min: <.01% max: 21.55% x̄: 2.39% x̃: 1.40%
HURT stats (abs) min: 1 max: 1841 x̄: 31.33 x̃: 6
HURT stats (rel) min: <.01% max: 58.71% x̄: 1.64% x̃: 0.37%
95% mean confidence interval for cycles value: -14.14 -9.64
95% mean confidence interval for cycles %-change: -1.75% -1.52%
Cycles are helped.
LOST: 3
GAINED: 7
Sandy Bridge
total instructions in shared programs: 10828844 -> 10824272 (-0.04%)
instructions in affected programs: 525678 -> 521106 (-0.87%)
helped: 2386
HURT: 0
helped stats (abs) min: 1 max: 51 x̄: 1.92 x̃: 2
helped stats (rel) min: 0.11% max: 7.96% x̄: 1.05% x̃: 0.94%
95% mean confidence interval for instructions value: -2.04 -1.80
95% mean confidence interval for instructions %-change: -1.08% -1.03%
Instructions are helped.
total cycles in shared programs: 154024591 -> 154009894 (<.01%)
cycles in affected programs: 4005766 -> 3991069 (-0.37%)
helped: 1245
HURT: 506
helped stats (abs) min: 1 max: 585 x̄: 21.07 x̃: 16
helped stats (rel) min: 0.02% max: 11.57% x̄: 1.98% x̃: 0.83%
HURT stats (abs) min: 1 max: 639 x̄: 22.81 x̃: 6
HURT stats (rel) min: 0.01% max: 26.21% x̄: 1.07% x̃: 0.26%
95% mean confidence interval for cycles value: -10.57 -6.21
95% mean confidence interval for cycles %-change: -1.23% -0.97%
Cycles are helped.
GM45 and Iron Lake had similar results. (Iron Lake shown)
total instructions in shared programs: 8137248 -> 8135196 (-0.03%)
instructions in affected programs: 148322 -> 146270 (-1.38%)
helped: 992
HURT: 0
helped stats (abs) min: 1 max: 32 x̄: 2.07 x̃: 2
helped stats (rel) min: 0.41% max: 9.73% x̄: 1.74% x̃: 1.51%
95% mean confidence interval for instructions value: -2.16 -1.98
95% mean confidence interval for instructions %-change: -1.80% -1.67%
Instructions are helped.
total cycles in shared programs: 188583424 -> 188575724 (<.01%)
cycles in affected programs: 4409620 -> 4401920 (-0.17%)
helped: 956
HURT: 6
helped stats (abs) min: 2 max: 168 x̄: 8.09 x̃: 8
helped stats (rel) min: 0.04% max: 6.76% x̄: 0.27% x̃: 0.18%
HURT stats (abs) min: 6 max: 6 x̄: 6.00 x̃: 6
HURT stats (rel) min: 0.10% max: 0.10% x̄: 0.10% x̃: 0.10%
95% mean confidence interval for cycles value: -8.41 -7.60
95% mean confidence interval for cycles %-change: -0.29% -0.25%
Cycles are helped.
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
2019-08-05 20:14:14 -07:00
b77070e293
nir/algebraic: Use value range analysis to eliminate tautological compares
...
It's only one application on one platform (Haswell) that's affected,
but spills and fills increase quite dramatically. :(
All Gen8+ platforms had similar results. (Ice Lake shown)
total instructions in shared programs: 16320850 -> 16297320 (-0.14%)
instructions in affected programs: 448012 -> 424482 (-5.25%)
helped: 1938
HURT: 0
helped stats (abs) min: 2 max: 264 x̄: 12.14 x̃: 10
helped stats (rel) min: 0.35% max: 43.75% x̄: 5.85% x̃: 5.38%
95% mean confidence interval for instructions value: -12.80 -11.48
95% mean confidence interval for instructions %-change: -5.99% -5.72%
Instructions are helped.
total cycles in shared programs: 367496943 -> 367221624 (-0.07%)
cycles in affected programs: 8557232 -> 8281913 (-3.22%)
helped: 1907
HURT: 26
helped stats (abs) min: 4 max: 12802 x̄: 147.21 x̃: 48
helped stats (rel) min: 0.03% max: 75.85% x̄: 5.55% x̃: 3.94%
HURT stats (abs) min: 4 max: 1870 x̄: 208.23 x̃: 20
HURT stats (rel) min: 0.16% max: 32.11% x̄: 8.31% x̃: 0.79%
95% mean confidence interval for cycles value: -165.38 -119.48
95% mean confidence interval for cycles %-change: -5.68% -5.04%
Cycles are helped.
LOST: 1
GAINED: 0
Haswell
total instructions in shared programs: 13374211 -> 13353925 (-0.15%)
instructions in affected programs: 349868 -> 329582 (-5.80%)
helped: 1669
HURT: 1
helped stats (abs) min: 1 max: 264 x̄: 12.57 x̃: 10
helped stats (rel) min: 0.12% max: 46.81% x̄: 6.86% x̃: 6.49%
HURT stats (abs) min: 700 max: 700 x̄: 700.00 x̃: 700
HURT stats (rel) min: 64.34% max: 64.34% x̄: 64.34% x̃: 64.34%
95% mean confidence interval for instructions value: -13.25 -11.04
95% mean confidence interval for instructions %-change: -7.01% -6.63%
Instructions are helped.
total cycles in shared programs: 375763544 -> 375535444 (-0.06%)
cycles in affected programs: 6932686 -> 6704586 (-3.29%)
helped: 1622
HURT: 48
helped stats (abs) min: 2 max: 12229 x̄: 148.31 x̃: 68
helped stats (rel) min: 0.06% max: 74.03% x̄: 5.94% x̃: 4.12%
HURT stats (abs) min: 3 max: 7451 x̄: 259.44 x̃: 41
HURT stats (rel) min: 0.05% max: 54.99% x̄: 8.52% x̃: 2.88%
95% mean confidence interval for cycles value: -159.86 -113.31
95% mean confidence interval for cycles %-change: -5.86% -5.18%
Cycles are helped.
total spills in shared programs: 23258 -> 23401 (0.61%)
spills in affected programs: 54 -> 197 (264.81%)
helped: 4
HURT: 2
total fills in shared programs: 34775 -> 34850 (0.22%)
fills in affected programs: 52 -> 127 (144.23%)
helped: 4
HURT: 1
LOST: 5
GAINED: 0
Ivy Bridge
total instructions in shared programs: 11996051 -> 11977964 (-0.15%)
instructions in affected programs: 346679 -> 328592 (-5.22%)
helped: 1508
HURT: 0
helped stats (abs) min: 2 max: 198 x̄: 11.99 x̃: 10
helped stats (rel) min: 0.26% max: 19.83% x̄: 5.73% x̃: 5.43%
95% mean confidence interval for instructions value: -12.65 -11.34
95% mean confidence interval for instructions %-change: -5.86% -5.60%
Instructions are helped.
total cycles in shared programs: 179891389 -> 179691339 (-0.11%)
cycles in affected programs: 7869479 -> 7669429 (-2.54%)
helped: 1485
HURT: 23
helped stats (abs) min: 1 max: 12615 x̄: 136.16 x̃: 54
helped stats (rel) min: 0.02% max: 71.84% x̄: 4.69% x̃: 3.49%
HURT stats (abs) min: 1 max: 403 x̄: 93.48 x̃: 6
HURT stats (rel) min: 0.04% max: 34.01% x̄: 8.68% x̃: 0.81%
95% mean confidence interval for cycles value: -154.59 -110.73
95% mean confidence interval for cycles %-change: -4.79% -4.19%
Cycles are helped.
Sandy Bridge
total instructions in shared programs: 10829247 -> 10828844 (<.01%)
instructions in affected programs: 21258 -> 20855 (-1.90%)
helped: 88
HURT: 0
helped stats (abs) min: 2 max: 17 x̄: 4.58 x̃: 5
helped stats (rel) min: 0.52% max: 3.92% x̄: 2.05% x̃: 2.21%
95% mean confidence interval for instructions value: -5.03 -4.13
95% mean confidence interval for instructions %-change: -2.21% -1.89%
Instructions are helped.
total cycles in shared programs: 154035437 -> 154024591 (<.01%)
cycles in affected programs: 430176 -> 419330 (-2.52%)
helped: 78
HURT: 10
helped stats (abs) min: 2 max: 4649 x̄: 143.06 x̃: 32
helped stats (rel) min: 0.05% max: 6.02% x̄: 2.03% x̃: 1.07%
HURT stats (abs) min: 3 max: 265 x̄: 31.30 x̃: 6
HURT stats (rel) min: 0.10% max: 8.67% x̄: 1.03% x̃: 0.21%
95% mean confidence interval for cycles value: -232.53 -13.97
95% mean confidence interval for cycles %-change: -2.13% -1.23%
Cycles are helped.
Iron Lake and GM45 had similar results. (Iron Lake shown)
total instructions in shared programs: 8137402 -> 8137248 (<.01%)
instructions in affected programs: 2280 -> 2126 (-6.75%)
helped: 10
HURT: 0
helped stats (abs) min: 12 max: 19 x̄: 15.40 x̃: 15
helped stats (rel) min: 3.90% max: 11.73% x̄: 7.19% x̃: 6.95%
95% mean confidence interval for instructions value: -17.69 -13.11
95% mean confidence interval for instructions %-change: -8.99% -5.39%
Instructions are helped.
total cycles in shared programs: 188538716 -> 188583424 (0.02%)
cycles in affected programs: 69326 -> 114034 (64.49%)
helped: 0
HURT: 10
HURT stats (abs) min: 2068 max: 7686 x̄: 4470.80 x̃: 4870
HURT stats (rel) min: 27.20% max: 173.66% x̄: 69.55% x̃: 59.41%
95% mean confidence interval for cycles value: 2830.86 6110.74
95% mean confidence interval for cycles %-change: 39.18% 99.91%
Cycles are HURT.
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
2019-08-05 20:14:13 -07:00
96fcb3f95b
nir/algebraic: Use value range analysis to eliminate tautological compares not used by if-statements
...
This just eliminates tautological / contradictory compares that are used
for bcsel and other non-if-statement cases. If-statements are not
affected because removing flow control can cause the i965 instrution
scheduler to create some very long live ranges resulting in unncessary
spilling. This causes some shaders to fall of a performance cliff.
Since many small if-statements are already flattened to bcsel, this
optimization covers more than 68% of the possible cases (2417 shaders
helped for instructions on Skylake vs. 3554).
v2: Reorder and add whitespace to make the relationship between the
patterns more obvious. Suggested by Caio.
All Gen7+ platforms had similar results. (Ice Lake shown)
total instructions in shared programs: 16333474 -> 16322028 (-0.07%)
instructions in affected programs: 438559 -> 427113 (-2.61%)
helped: 1765
HURT: 0
helped stats (abs) min: 1 max: 275 x̄: 6.48 x̃: 4
helped stats (rel) min: 0.20% max: 36.36% x̄: 4.07% x̃: 1.82%
95% mean confidence interval for instructions value: -6.87 -6.10
95% mean confidence interval for instructions %-change: -4.30% -3.84%
Instructions are helped.
total cycles in shared programs: 367608554 -> 367511103 (-0.03%)
cycles in affected programs: 8368829
2019-08-05 20:14:13 -07:00
d24edb4b8c
nir/algebraic: Simplify some comparisons like a+constant < constant
...
v2: Remove unsafe integer versions of the optimizations. This change
had no effect on shader-db results. Suggested by Caio.
All Gen6+ platforms had similar results. (Ice Lake shown)
total instructions in shared programs: 16333713 -> 16332631 (<.01%)
instructions in affected programs: 258112 -> 257030 (-0.42%)
helped: 1275
HURT: 407
helped stats (abs) min: 1 max: 7 x̄: 1.17 x̃: 1
helped stats (rel) min: 0.20% max: 8.33% x̄: 1.33% x̃: 0.86%
HURT stats (abs) min: 1 max: 2 x̄: 1.00 x̃: 1
HURT stats (rel) min: 0.11% max: 2.94% x̄: 0.98% x̃: 0.98%
95% mean confidence interval for instructions value: -0.70 -0.59
95% mean confidence interval for instructions %-change: -0.84% -0.70%
Instructions are helped.
total cycles in shared programs: 367596791 -> 367601268 (<.01%)
cycles in affected programs: 3420062 -> 3424539 (0.13%)
helped: 1553
HURT: 783
helped stats (abs) min: 1 max: 742 x̄: 24.36 x̃: 6
helped stats (rel) min: 0.05% max: 21.12% x̄: 1.47% x̃: 0.65%
HURT stats (abs) min: 1 max: 557 x̄: 54.04 x̃: 14
HURT stats (rel) min: 0.01% max: 33.66% x̄: 3.36% x̃: 1.43%
95% mean confidence interval for cycles value: -1.60 5.43
95% mean confidence interval for cycles %-change: -0.03% 0.33%
Inconclusive result (value mean confidence interval includes 0).
LOST: 0
GAINED: 2
Iron Lake
total instructions in shared programs: 8137992 -> 8137874 (<.01%)
instructions in affected programs: 17501 -> 17383 (-0.67%)
helped: 104
HURT: 2
helped stats (abs) min: 1 max: 2 x̄: 1.17 x̃: 1
helped stats (rel) min: 0.25% max: 2.63% x̄: 0.87% x̃: 0.72%
HURT stats (abs) min: 2 max: 2 x̄: 2.00 x̃: 2
HURT stats (rel) min: 0.45% max: 0.45% x̄: 0.45% x̃: 0.45%
95% mean confidence interval for instructions value: -1.22 -1.00
95% mean confidence interval for instructions %-change: -0.94% -0.76%
Instructions are helped.
total cycles in shared programs: 188540038 -> 188539650 (<.01%)
cycles in affected programs: 704574 -> 704186 (-0.06%)
helped: 125
HURT: 84
helped stats (abs) min: 2 max: 96 x̄: 6.45 x̃: 4
helped stats (rel) min: <.01% max: 3.47% x̄: 0.42% x̃: 0.25%
HURT stats (abs) min: 2 max: 58 x̄: 4.98 x̃: 4
HURT stats (rel) min: 0.01% max: 2.75% x̄: 0.36% x̃: 0.33%
95% mean confidence interval for cycles value: -3.20 -0.52
95% mean confidence interval for cycles %-change: -0.19% -0.03%
Cycles are helped.
GM45
total instructions in shared programs: 5008889 -> 5008830 (<.01%)
instructions in affected programs: 8824 -> 8765 (-0.67%)
helped: 52
HURT: 1
helped stats (abs) min: 1 max: 2 x̄: 1.17 x̃: 1
helped stats (rel) min: 0.25% max: 2.38% x̄: 0.86% x̃: 0.72%
HURT stats (abs) min: 2 max: 2 x̄: 2.00 x̃: 2
HURT stats (rel) min: 0.45% max: 0.45% x̄: 0.45% x̃: 0.45%
95% mean confidence interval for instructions value: -1.27 -0.95
95% mean confidence interval for instructions %-change: -0.96% -0.71%
Instructions are helped.
total cycles in shared programs: 128969426 -> 128969128 (<.01%)
cycles in affected programs: 399798 -> 399500 (-0.07%)
helped: 74
HURT: 30
helped stats (abs) min: 2 max: 22 x̄: 6.76 x̃: 6
helped stats (rel) min: <.01% max: 1.83% x̄: 0.46% x̃: 0.29%
HURT stats (abs) min: 2 max: 58 x̄: 6.73 x̃: 6
HURT stats (rel) min: 0.06% max: 2.75% x̄: 0.42% x̃: 0.21%
95% mean confidence interval for cycles value: -4.60 -1.14
95% mean confidence interval for cycles %-change: -0.32% -0.08%
Cycles are helped.
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
2019-08-05 20:14:13 -07:00
7c64cbf49d
nir/algebraic: Recognize (a < 0 || 0 < b) as min(a, -b) < 0
...
Similar to commit 97e6c1b9f5cf74d8ba
2019-08-05 20:14:13 -07:00
92b75c126b
nir/algebraic: Replace checks that a value is between (or not) [0, 1]
...
v2: Add an extra line to one of the proofs. Suggested by Caio.
All Gen7+ platforms had similar results. (Ice Lake shown)
total instructions in shared programs: 16329772 -> 16329427 (<.01%)
instructions in affected programs: 41980 -> 41635 (-0.82%)
helped: 110
HURT: 0
helped stats (abs) min: 1 max: 20 x̄: 3.14 x̃: 2
helped stats (rel) min: 0.19% max: 5.56% x̄: 1.12% x̃: 0.94%
95% mean confidence interval for instructions value: -4.10 -2.17
95% mean confidence interval for instructions %-change: -1.28% -0.96%
Instructions are helped.
total cycles in shared programs: 367551273 -> 367549979 (<.01%)
cycles in affected programs: 492462 -> 491168 (-0.26%)
helped: 76
HURT: 25
helped stats (abs) min: 1 max: 400 x̄: 42.86 x̃: 12
helped stats (rel) min: 0.06% max: 10.72% x̄: 1.23% x̃: 0.75%
HURT stats (abs) min: 2 max: 730 x̄: 78.52 x̃: 16
HURT stats (rel) min: 0.17% max: 6.89% x̄: 2.08% x̃: 1.23%
95% mean confidence interval for cycles value: -37.79 12.16
95% mean confidence interval for cycles %-change: -0.90% 0.07%
Inconclusive result (value mean confidence interval includes 0).
LOST: 0
GAINED: 2
Sandy Bridge
total instructions in shared programs: 10831115 -> 10830836 (<.01%)
instructions in affected programs: 37830 -> 37551 (-0.74%)
helped: 70
HURT: 0
helped stats (abs) min: 1 max: 20 x̄: 3.99 x̃: 2
helped stats (rel) min: 0.33% max: 7.14% x̄: 1.21% x̃: 0.97%
95% mean confidence interval for instructions value: -5.47 -2.50
95% mean confidence interval for instructions %-change: -1.49% -0.92%
Instructions are helped.
total cycles in shared programs: 154029323 -> 154028477 (<.01%)
cycles in affected programs: 247909 -> 247063 (-0.34%)
helped: 52
HURT: 6
helped stats (abs) min: 2 max: 254 x̄: 25.81 x̃: 4
helped stats (rel) min: 0.07% max: 4.39% x̄: 0.81% x̃: 0.19%
HURT stats (abs) min: 4 max: 403 x̄: 82.67 x̃: 8
HURT stats (rel) min: 0.18% max: 1.60% x̄: 0.71% x̃: 0.53%
95% mean confidence interval for cycles value: -34.83 5.65
95% mean confidence interval for cycles %-change: -0.98% -0.32%
Inconclusive result (value mean confidence interval includes 0).
Iron Lake
total instructions in shared programs: 8138007 -> 8137966 (<.01%)
instructions in affected programs: 4060 -> 4019 (-1.01%)
helped: 31
HURT: 0
helped stats (abs) min: 1 max: 2 x̄: 1.32 x̃: 1
helped stats (rel) min: 0.68% max: 8.33% x̄: 1.45% x̃: 0.90%
95% mean confidence interval for instructions value: -1.50 -1.15
95% mean confidence interval for instructions %-change: -2.11% -0.79%
Instructions are helped.
total cycles in shared programs: 188539492 -> 188539386 (<.01%)
cycles in affected programs: 26280 -> 26174 (-0.40%)
helped: 25
HURT: 0
helped stats (abs) min: 2 max: 8 x̄: 4.24 x̃: 4
helped stats (rel) min: 0.08% max: 2.11% x̄: 0.54% x̃: 0.50%
95% mean confidence interval for cycles value: -5.08 -3.40
95% mean confidence interval for cycles %-change: -0.70% -0.37%
Cycles are helped.
GM45
total instructions in shared programs: 5008897 -> 5008876 (<.01%)
instructions in affected programs: 2096 -> 2075 (-1.00%)
helped: 16
HURT: 0
helped stats (abs) min: 1 max: 2 x̄: 1.31 x̃: 1
helped stats (rel) min: 0.68% max: 7.69% x̄: 1.41% x̃: 0.89%
95% mean confidence interval for instructions value: -1.57 -1.06
95% mean confidence interval for instructions %-change: -2.32% -0.49%
Instructions are helped.
total cycles in shared programs: 128969020 -> 128968950 (<.01%)
cycles in affected programs: 18490 -> 18420 (-0.38%)
helped: 15
HURT: 0
helped stats (abs) min: 2 max: 8 x̄: 4.67 x̃: 4
helped stats (rel) min: 0.08% max: 2.11% x̄: 0.51% x̃: 0.48%
95% mean confidence interval for cycles value: -6.03 -3.30
95% mean confidence interval for cycles %-change: -0.78% -0.24%
Cycles are helped.
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
2019-08-05 20:14:13 -07:00
b3676a6548
nir/algebraic: rename lower_bitshift to lower_bitops
...
Optimizations that insert bitshift or bitwise operations should not be
applied on GPUs that don't support integer operations.
The .lower_bitshift could be used to control the bitshift related ones,
but there was also one bitwise optimization uncovered.
Since only lima and freedreno use this option and the use case is that
no bit operations are wanted, let's rename it to .lower_bitops and use
it to control all bitops related optimizations.
Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Reviewed-by: Jonathan Marek <jonathan@marek.ca>
2019-07-31 23:06:04 +02:00
4a407df682
nir/algebraic: add new fsum ops and fdot lowering
...
The Mali400 pp doesn't implement fdot but has fsum3 and fsum4, which can
be used to optimize fdot lowering. fsum2 is not implemented and can be
further lowered to an add with the vector components.
Currently lima ppir handles this lowering internally, however this
happens in a very late stage and requires a big chunk of code compared
to a nir_opt_algebraic lowering.
By having fsum in nir, we can reduce ppir complexity and enable the
lowered ops to be part of other nir optimizations in the optimization
loop.
Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2019-07-31 21:35:58 +02:00
97c8314c5f
nir/algebraic: add scmp algebraic optimizations
...
When 'x' is the result of a scmp op:
x != 0.0 or x == 1.0: passthrough
x == 0.0 or x != 1.0: invert
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2019-07-24 17:36:21 -04:00
9be902097c
nir/algebraic: add option to lower fall_equalN/fany_nequalN
...
Add generic lowerings for fall_equalN/fany_nequalN. These should be optimal
for vec4 backends that doesn't have any special instructions for it, as
long as they support saturate.
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2019-07-24 17:36:21 -04:00
397375d3f3
nir/algebraic: add fdot2 optimizations
...
Add simple fdot2 optimizations that are missing.
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Thomas Helland <thomashelland90@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2019-07-24 17:36:21 -04:00
1e089d0575
nir/algebraic: add option to lower fdph
...
For backends that don't have a 'fdph' instructions
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Thomas Helland <thomashelland90@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2019-07-24 17:36:21 -04:00
bc3b6168ba
nir: replace lower_sincos with algebraic opt
...
This version has less ops for the same precision.
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Acked-by: Matt Turner <mattst88@gmail.com>
2019-07-24 17:36:21 -04:00
5a4e71c082
nir/algebraic: allow swizzle in nir_algebraic replace expression
...
This is to allow optimizations in nir_opt_algebraic not otherwise possible
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Acked-by: Matt Turner <mattst88@gmail.com>
2019-07-24 17:36:21 -04:00
e8644122ed
nir/algebraic: mark a few comparison simplifications as precise
...
No vkpipeline-db changes found.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reveiewed-by: Alyssa Rosenzweig alyssa.rosenzweig@collabora.com
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
2019-07-19 16:33:01 +00:00
79801b9d7d
nir/algebraic: optimize contradictory iand operands
...
Some of these were found in a few GTAV, Rise of the Tomb Raider and
Shadow of the Tomb Raider shaders.
Results from vkpipeline-db run with ACO:
Totals from affected shaders:
SGPRS: 376 -> 376 (0.00 %)
VGPRS: 220 -> 220 (0.00 %)
Spilled SGPRs: 0 -> 0 (0.00 %)
Spilled VGPRs: 0 -> 0 (0.00 %)
Private memory VGPRs: 0 -> 0 (0.00 %)
Scratch size: 0 -> 0 (0.00 %) dwords per thread
Code Size: 13492 -> 11560 (-14.32 %) bytes
LDS: 6 -> 6 (0.00 %) blocks
Max Waves: 69 -> 69 (0.00 %)
Wait states: 0 -> 0 (0.00 %)
v2: use False instead of 0
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reveiewed-by: Alyssa Rosenzweig alyssa.rosenzweig@collabora.com
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
2019-07-19 16:33:01 +00:00
812b341578
nir/algebraic: Optimize comparisons and up-casts
...
These seem like obvious enough optimizations in the world of multiple
integer bit sizes. The only known thing which hits these at the moment
is some Vulkan CTS tests for 16-bit SSBO values which like to up-cast
and check for equality. However, it's something that's bound to come up
as we start seeing more integers in shaders.
The optimizations of comparisons of casted values with constants are
something which we would ideally do with range analysis. However,
lacking that, we can do it in opt_algebraic as long as one side is a
constant.
In dEQP-VK.ssbo.phys.layout.random.16bit.scalar.13, this commit, along
with the previous commit, reduce the number of instructions emitted on
Skylake from 55328 to 44546, a reduction of 20%.
Acked-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2019-07-17 18:44:35 +00:00
e8505e982a
nir/algebraic: Optimize comparing unpacked values
...
We could, in theory, add the same optimization for 64-bit unpack
operations but that's likely to fight with 64-bit integer lowering on
platforms which require it so it will require more infrastructure before
that will be a good idea.
Reviewed-by: Matt Turner <mattst88@gmail.com>
2019-07-17 18:44:35 +00:00
ef7b4fdf3f
nir/algebraic: Recognize open-coded flrp(a, b, a)
...
No shader-db changes Ice Lake, Iron Lake, or GM45 as these platforms
lack a LRP instruction.
v2: Remove flrp@64 cases. Since Gen11 removes flrp@32, it seems
unlikely that we'll ever have a flrp@64. Should that occur, the cases
can be added back.
All Gen6-Gen9 platforms had similar results. (Skylake shown)
total instructions in shared programs: 15041996 -> 15041184 (<.01%)
instructions in affected programs: 71776 -> 70964 (-1.13%)
helped: 312
HURT: 0
helped stats (abs) min: 2 max: 3 x̄: 2.60 x̃: 3
helped stats (rel) min: 0.36% max: 4.55% x̄: 1.75% x̃: 1.28%
95% mean confidence interval for instructions value: -2.66 -2.55
95% mean confidence interval for instructions %-change: -1.89% -1.61%
Instructions are helped.
total cycles in shared programs: 354303333 -> 354301807 (<.01%)
cycles in affected programs: 433742 -> 432216 (-0.35%)
helped: 206
HURT: 78
helped stats (abs) min: 2 max: 244 x̄: 21.02 x̃: 8
helped stats (rel) min: 0.06% max: 19.59% x̄: 1.72% x̃: 0.82%
HURT stats (abs) min: 1 max: 220 x̄: 35.95 x̃: 10
HURT stats (rel) min: 0.07% max: 30.48% x̄: 2.53% x̃: 0.56%
95% mean confidence interval for cycles value: -10.68 -0.06
95% mean confidence interval for cycles %-change: -0.99% -0.12%
Cycles are helped.
Reviewed-by: Matt Turner <mattst88@gmail.com>
2019-07-11 10:20:03 -07:00
0c2b3a7fc0
nir/algebraic: Rearrange 1-((1-a) * (1-b)) into flrp-friendly form
...
No shader-db changes Ice Lake, Iron Lake, or GM45 as these platforms
lack a LRP instruction.
v2: Convert the pattern directly to flrp. There were negligible
improvements on Gen4 and Gen5, and Gen11 was actually hurt. I believe
the problem is this optimization conflicts with the (1-x)*y =>
ffma(-x, y, y) optimization on Gen11.
Skylake
total instructions in shared programs: 15046487 -> 15041996 (-0.03%)
instructions in affected programs: 194681 -> 190190 (-2.31%)
helped: 880
HURT: 20
helped stats (abs) min: 1 max: 19 x̄: 5.13 x̃: 4
helped stats (rel) min: 0.19% max: 36.36% x̄: 4.85% x̃: 3.33%
HURT stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1
HURT stats (rel) min: 0.11% max: 1.06% x̄: 0.28% x̃: 0.17%
95% mean confidence interval for instructions value: -5.25 -4.73
95% mean confidence interval for instructions %-change: -5.11% -4.36%
Instructions are helped.
total cycles in shared programs: 354340839 -> 354303333 (-0.01%)
cycles in affected programs: 1753622 -> 1716116 (-2.14%)
helped: 786
HURT: 182
helped stats (abs) min: 1 max: 1842 x̄: 56.52 x̃: 22
helped stats (rel) min: 0.03% max: 43.17% x̄: 3.90% x̃: 2.84%
HURT stats (abs) min: 1 max: 440 x̄: 37.99 x̃: 9
HURT stats (rel) min: 0.03% max: 29.37% x̄: 1.96% x̃: 0.32%
95% mean confidence interval for cycles value: -45.90 -31.59
95% mean confidence interval for cycles %-change: -3.09% -2.50%
Cycles are helped.
All Gen6-Gen8 platforms had similar results. (Broadwell shown)
total instructions in shared programs: 15055907 -> 15051466 (-0.03%)
instructions in affected programs: 196370 -> 191929 (-2.26%)
helped: 871
HURT: 26
helped stats (abs) min: 1 max: 19 x̄: 5.13 x̃: 4
helped stats (rel) min: 0.19% max: 36.36% x̄: 4.76% x̃: 3.27%
HURT stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1
HURT stats (rel) min: 0.11% max: 1.06% x̄: 0.24% x̃: 0.12%
95% mean confidence interval for instructions value: -5.21 -4.69
95% mean confidence interval for instructions %-change: -4.99% -4.24%
Instructions are helped.
total cycles in shared programs: 387729170 -> 387699745 (<.01%)
cycles in affected programs: 1816409 -> 1786984 (-1.62%)
helped: 788
HURT: 172
helped stats (abs) min: 1 max: 662 x̄: 47.29 x̃: 22
helped stats (rel) min: 0.03% max: 31.26% x̄: 3.55% x̃: 2.76%
HURT stats (abs) min: 1 max: 404 x̄: 45.59 x̃: 14
HURT stats (rel) min: 0.03% max: 22.92% x̄: 1.53% x̃: 0.43%
95% mean confidence interval for cycles value: -35.69 -25.61
95% mean confidence interval for cycles %-change: -2.88% -2.40%
Cycles are helped.
total fills in shared programs: 34712 -> 34710 (<.01%)
fills in affected programs: 7 -> 5 (-28.57%)
helped: 1
HURT: 0
LOST: 0
GAINED: 2
Reviewed-by: Matt Turner <mattst88@gmail.com>
2019-07-11 10:20:03 -07:00
09705747d7
nir/algebraic: Reassociate fadd into fmul in DPH-like pattern
...
Moving the add to the other end of the sequence allows it to be fused
into an FMA.
Ice Lake
total instructions in shared programs: 17173074 -> 16933147 (-1.40%)
instructions in affected programs: 7938745 -> 7698818 (-3.02%)
helped: 35583
HURT: 90
helped stats (abs) min: 1 max: 716 x̄: 6.75 x̃: 6
helped stats (rel) min: 0.10% max: 53.04% x̄: 5.29% x̃: 3.45%
HURT stats (abs) min: 1 max: 41 x̄: 2.46 x̃: 1
HURT stats (rel) min: 0.32% max: 8.33% x̄: 1.41% x̃: 0.77%
95% mean confidence interval for instructions value: -6.80 -6.65
95% mean confidence interval for instructions %-change: -5.32% -5.22%
Instructions are helped.
total cycles in shared programs: 360881386 -> 359533568 (-0.37%)
cycles in affected programs: 189489144 -> 188141326 (-0.71%)
helped: 27250
HURT: 6707
helped stats (abs) min: 1 max: 21997 x̄: 62.15 x̃: 16
helped stats (rel) min: <.01% max: 70.69% x̄: 4.04% x̃: 2.35%
HURT stats (abs) min: 1 max: 3507 x̄: 51.56 x̃: 14
HURT stats (rel) min: <.01% max: 77.26% x̄: 2.72% x̃: 1.27%
95% mean confidence interval for cycles value: -44.70 -34.68
95% mean confidence interval for cycles %-change: -2.75% -2.65%
Cycles are helped.
total spills in shared programs: 8943 -> 8829 (-1.27%)
spills in affected programs: 625 -> 511 (-18.24%)
helped: 6
HURT: 3
total fills in shared programs: 21815 -> 21719 (-0.44%)
fills in affected programs: 1653 -> 1557 (-5.81%)
helped: 7
HURT: 10
LOST: 11
GAINED: 3
Skylake and Broadwell had similar results. (Skylake shown)
total instructions in shared programs: 15271996 -> 15040882 (-1.51%)
instructions in affected programs: 7193699 -> 6962585 (-3.21%)
helped: 33985
HURT: 30
helped stats (abs) min: 1 max: 260 x̄: 6.80 x̃: 6
helped stats (rel) min: 0.10% max: 30.00% x̄: 5.54% x̃: 3.85%
HURT stats (abs) min: 1 max: 41 x̄: 4.00 x̃: 3
HURT stats (rel) min: 0.20% max: 2.16% x̄: 1.46% x̃: 1.72%
95% mean confidence interval for instructions value: -6.87 -6.72
95% mean confidence interval for instructions %-change: -5.59% -5.48%
Instructions are helped.
total cycles in shared programs: 355520785 -> 354253799 (-0.36%)
cycles in affected programs: 185869148 -> 184602162 (-0.68%)
helped: 25824
HURT: 6287
helped stats (abs) min: 1 max: 21997 x̄: 61.66 x̃: 16
helped stats (rel) min: <.01% max: 42.05% x̄: 4.18% x̃: 2.41%
HURT stats (abs) min: 1 max: 3327 x̄: 51.76 x̃: 14
HURT stats (rel) min: <.01% max: 101.62% x̄: 2.80% x̃: 1.28%
95% mean confidence interval for cycles value: -44.70 -34.21
95% mean confidence interval for cycles %-change: -2.87% -2.76%
Cycles are helped.
total spills in shared programs: 8835 -> 8818 (-0.19%)
spills in affected programs: 613 -> 596 (-2.77%)
helped: 5
HURT: 2
total fills in shared programs: 21738 -> 21744 (0.03%)
fills in affected programs: 1348 -> 1354 (0.45%)
helped: 5
HURT: 11
LOST: 0
GAINED: 12
Haswell
total instructions in shared programs: 13447102 -> 13381508 (-0.49%)
instructions in affected programs: 3770735 -> 3705141 (-1.74%)
helped: 11999
HURT: 29
helped stats (abs) min: 1 max: 409 x̄: 5.60 x̃: 3
helped stats (rel) min: 0.10% max: 20.00% x̄: 2.38% x̃: 1.87%
HURT stats (abs) min: 3 max: 750 x̄: 54.90 x̃: 3
HURT stats (rel) min: 0.12% max: 125.30% x̄: 9.96% x̃: 1.82%
95% mean confidence interval for instructions value: -5.71 -5.19
95% mean confidence interval for instructions %-change: -2.39% -2.30%
Instructions are helped.
total cycles in shared programs: 376342236 -> 375690458 (-0.17%)
cycles in affected programs: 155699021 -> 155047243 (-0.42%)
helped: 8397
HURT: 2876
helped stats (abs) min: 1 max: 20248 x̄: 109.87 x̃: 18
helped stats (rel) min: <.01% max: 40.71% x̄: 2.23% x̃: 1.49%
HURT stats (abs) min: 1 max: 15414 x̄: 94.15 x̃: 22
HURT stats (rel) min: <.01% max: 432.49% x̄: 3.15% x̃: 1.41%
95% mean confidence interval for cycles value: -67.64 -48.00
95% mean confidence interval for cycles %-change: -0.99% -0.74%
Cycles are helped.
total spills in shared programs: 23134 -> 23184 (0.22%)
spills in affected programs: 1675 -> 1725 (2.99%)
helped: 13
HURT: 11
total fills in shared programs: 34550 -> 34686 (0.39%)
fills in affected programs: 1421 -> 1557 (9.57%)
helped: 13
HURT: 11
LOST: 0
GAINED: 11
Ivy Bridge
total instructions in shared programs: 12019642 -> 11987285 (-0.27%)
instructions in affected programs: 1532236 -> 1499879 (-2.11%)
helped: 5522
HURT: 110
helped stats (abs) min: 1 max: 312 x̄: 6.22 x̃: 3
helped stats (rel) min: 0.16% max: 20.00% x̄: 2.46% x̃: 1.88%
HURT stats (abs) min: 1 max: 750 x̄: 18.07 x̃: 3
HURT stats (rel) min: 0.09% max: 125.30% x̄: 3.42% x̃: 1.15%
95% mean confidence interval for instructions value: -6.25 -5.24
95% mean confidence interval for instructions %-change: -2.43% -2.26%
Instructions are helped.
total cycles in shared programs: 180214667 -> 179761900 (-0.25%)
cycles in affected programs: 31448723 -> 30995956 (-1.44%)
helped: 7191
HURT: 2838
helped stats (abs) min: 1 max: 17680 x̄: 88.47 x̃: 17
helped stats (rel) min: <.01% max: 50.45% x̄: 2.16% x̃: 1.40%
HURT stats (abs) min: 1 max: 15540 x̄: 64.63 x̃: 24
HURT stats (rel) min: 0.02% max: 435.17% x̄: 3.10% x̃: 1.51%
95% mean confidence interval for cycles value: -53.34 -36.95
95% mean confidence interval for cycles %-change: -0.81% -0.53%
Cycles are helped.
total spills in shared programs: 3599 -> 3642 (1.19%)
spills in affected programs: 1180 -> 1223 (3.64%)
helped: 12
HURT: 2
total fills in shared programs: 4031 -> 4162 (3.25%)
fills in affected programs: 876 -> 1007 (14.95%)
helped: 12
HURT: 2
LOST: 6
GAINED: 5
Sandy Bridge
total instructions in shared programs: 10850686 -> 10822890 (-0.26%)
instructions in affected programs: 1247986 -> 1220190 (-2.23%)
helped: 4699
HURT: 102
helped stats (abs) min: 1 max: 104 x̄: 6.02 x̃: 3
helped stats (rel) min: 0.15% max: 17.65% x̄: 2.44% x̃: 1.88%
HURT stats (abs) min: 1 max: 16 x̄: 4.70 x̃: 3
HURT stats (rel) min: 0.09% max: 3.85% x̄: 1.11% x̃: 1.10%
95% mean confidence interval for instructions value: -6.10 -5.47
95% mean confidence interval for instructions %-change: -2.42% -2.30%
Instructions are helped.
total cycles in shared programs: 154044149 -> 153920095 (-0.08%)
cycles in affected programs: 26037392 -> 25913338 (-0.48%)
helped: 5974
HURT: 2521
helped stats (abs) min: 1 max: 1802 x̄: 35.42 x̃: 16
helped stats (rel) min: <.01% max: 35.80% x̄: 1.43% x̃: 0.84%
HURT stats (abs) min: 1 max: 862 x̄: 34.73 x̃: 20
HURT stats (rel) min: 0.01% max: 36.33% x̄: 1.67% x̃: 0.85%
95% mean confidence interval for cycles value: -16.31 -12.90
95% mean confidence interval for cycles %-change: -0.56% -0.45%
Cycles are helped.
total spills in shared programs: 2876 -> 2957 (2.82%)
spills in affected programs: 592 -> 673 (13.68%)
helped: 6
HURT: 35
total fills in shared programs: 3157 -> 3134 (-0.73%)
fills in affected programs: 402 -> 379 (-5.72%)
helped: 6
HURT: 0
LOST: 5
GAINED: 11
Reviewed-by: Matt Turner <mattst88@gmail.com>
2019-07-11 10:20:03 -07:00
ff9f526de3
nir/algebraic: Recognize open-coded flrp(-1, 1, a) and flrp(1, -1, a)
...
v2: Remove flrp@64 cases. Since Gen11 removes flrp@32, it seems
unlikely that we'll ever have a flrp@64. Should that occur, the cases
can be added back.
v3: Add a couple more patterns that just move the negation around.
No shader-db changes Ice Lake, Iron Lake, or GM45 as these platforms
lack a LRP instruction.
Skylake
total instructions in shared programs: 15279687 -> 15256058 (-0.15%)
instructions in affected programs: 4344440 -> 4320811 (-0.54%)
helped: 23455
HURT: 18
helped stats (abs) min: 1 max: 21 x̄: 1.01 x̃: 1
helped stats (rel) min: 0.02% max: 13.33% x̄: 0.86% x̃: 0.65%
HURT stats (abs) min: 1 max: 2 x̄: 1.06 x̃: 1
HURT stats (rel) min: 0.13% max: 1.16% x̄: 0.43% x̃: 0.34%
95% mean confidence interval for instructions value: -1.01 -1.00
95% mean confidence interval for instructions %-change: -0.87% -0.85%
Instructions are helped.
total cycles in shared programs: 355593755 -> 355339981 (-0.07%)
cycles in affected programs: 162089552 -> 161835778 (-0.16%)
helped: 20467
HURT: 7158
helped stats (abs) min: 1 max: 2074 x̄: 29.00 x̃: 6
helped stats (rel) min: <.01% max: 35.71% x̄: 1.71% x̃: 0.58%
HURT stats (abs) min: 1 max: 4814 x̄: 47.46 x̃: 11
HURT stats (rel) min: <.01% max: 125.43% x̄: 2.88% x̃: 0.98%
95% mean confidence interval for cycles value: -10.39 -7.98
95% mean confidence interval for cycles %-change: -0.57% -0.47%
Cycles are helped.
total spills in shared programs: 8843 -> 8835 (-0.09%)
spills in affected programs: 190 -> 182 (-4.21%)
helped: 2
HURT: 0
total fills in shared programs: 21738 -> 21738 (0.00%)
fills in affected programs: 372 -> 372 (0.00%)
helped: 1
HURT: 1
LOST: 12
GAINED: 22
Broadwell
total instructions in shared programs: 15290523 -> 15266818 (-0.16%)
instructions in affected programs: 4314738 -> 4291033 (-0.55%)
helped: 23391
HURT: 11
helped stats (abs) min: 1 max: 119 x̄: 1.02 x̃: 1
helped stats (rel) min: 0.02% max: 13.33% x̄: 0.86% x̃: 0.65%
HURT stats (abs) min: 1 max: 189 x̄: 18.09 x̃: 1
HURT stats (rel) min: 0.11% max: 5.39% x̄: 0.98% x̃: 0.50%
95% mean confidence interval for instructions value: -1.04 -0.99
95% mean confidence interval for instructions %-change: -0.87% -0.85%
Instructions are helped.
total cycles in shared programs: 388911660 -> 388830827 (-0.02%)
cycles in affected programs: 172903324 -> 172822491 (-0.05%)
helped: 15601
HURT: 13269
helped stats (abs) min: 1 max: 1986 x̄: 29.18 x̃: 6
helped stats (rel) min: <.01% max: 36.60% x̄: 1.74% x̃: 0.55%
HURT stats (abs) min: 1 max: 14904 x̄: 28.21 x̃: 6
HURT stats (rel) min: <.01% max: 102.58% x̄: 1.77% x̃: 0.60%
95% mean confidence interval for cycles value: -4.20 -1.40
95% mean confidence interval for cycles %-change: -0.17% -0.08%
Cycles are helped.
total spills in shared programs: 23110 -> 23069 (-0.18%)
spills in affected programs: 656 -> 615 (-6.25%)
helped: 3
HURT: 1
total fills in shared programs: 34399 -> 34398 (<.01%)
fills in affected programs: 905 -> 904 (-0.11%)
helped: 3
HURT: 1
LOST: 6
GAINED: 23
Haswell
total instructions in shared programs: 13465303 -> 13441142 (-0.18%)
instructions in affected programs: 3726999 -> 3702838 (-0.65%)
helped: 22139
HURT: 347
helped stats (abs) min: 1 max: 43 x̄: 1.11 x̃: 1
helped stats (rel) min: 0.03% max: 10.00% x̄: 1.01% x̃: 0.75%
HURT stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1
HURT stats (rel) min: 0.35% max: 11.11% x̄: 1.48% x̃: 1.12%
95% mean confidence interval for instructions value: -1.08 -1.07
95% mean confidence interval for instructions %-change: -0.99% -0.96%
Instructions are helped.
total cycles in shared programs: 376271308 -> 376273090 (<.01%)
cycles in affected programs: 167496811 -> 167498593 (<.01%)
helped: 13206
HURT: 13281
helped stats (abs) min: 1 max: 3864 x̄: 35.39 x̃: 8
helped stats (rel) min: <.01% max: 53.10% x̄: 2.31% x̃: 0.80%
HURT stats (abs) min: 1 max: 3828 x̄: 35.32 x̃: 8
HURT stats (rel) min: <.01% max: 117.85% x̄: 2.88% x̃: 0.61%
95% mean confidence interval for cycles value: -1.33 1.47
95% mean confidence interval for cycles %-change: 0.22% 0.36%
Inconclusive result (value mean confidence interval includes 0).
total spills in shared programs: 23158 -> 23134 (-0.10%)
spills in affected programs: 24 -> 0
helped: 3
HURT: 0
total fills in shared programs: 34580 -> 34550 (-0.09%)
fills in affected programs: 30 -> 0
helped: 3
HURT: 0
LOST: 23
GAINED: 13
Ivy Bridge
total instructions in shared programs: 12034154 -> 12014301 (-0.16%)
instructions in affected programs: 3636209 -> 3616356 (-0.55%)
helped: 18771
HURT: 459
helped stats (abs) min: 1 max: 43 x̄: 1.08 x̃: 1
helped stats (rel) min: 0.03% max: 10.00% x̄: 0.91% x̃: 0.68%
HURT stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1
HURT stats (rel) min: 0.34% max: 8.33% x̄: 1.43% x̃: 1.11%
95% mean confidence interval for instructions value: -1.04 -1.02
95% mean confidence interval for instructions %-change: -0.86% -0.84%
Instructions are helped.
total cycles in shared programs: 180186960 -> 180175147 (<.01%)
cycles in affected programs: 44652745 -> 44640932 (-0.03%)
helped: 12979
HURT: 11033
helped stats (abs) min: 1 max: 5836 x̄: 32.88 x̃: 6
helped stats (rel) min: <.01% max: 53.10% x̄: 2.19% x̃: 0.74%
HURT stats (abs) min: 1 max: 4811 x̄: 37.61 x̃: 9
HURT stats (rel) min: <.01% max: 115.18% x̄: 2.99% x̃: 0.69%
95% mean confidence interval for cycles value: -2.29 1.31
95% mean confidence interval for cycles %-change: 0.11% 0.26%
Inconclusive result (value mean confidence interval includes 0).
total spills in shared programs: 3623 -> 3599 (-0.66%)
spills in affected programs: 24 -> 0
helped: 3
HURT: 0
total fills in shared programs: 4061 -> 4031 (-0.74%)
fills in affected programs: 30 -> 0
helped: 3
HURT: 0
LOST: 17
GAINED: 18
Sandy Bridge
total instructions in shared programs: 10853968 -> 10834932 (-0.18%)
instructions in affected programs: 3769957 -> 3750921 (-0.50%)
helped: 17944
HURT: 204
helped stats (abs) min: 1 max: 3 x̄: 1.07 x̃: 1
helped stats (rel) min: 0.02% max: 10.00% x̄: 0.83% x̃: 0.60%
HURT stats (abs) min: 1 max: 2 x̄: 1.01 x̃: 1
HURT stats (rel) min: 0.31% max: 9.09% x̄: 1.83% x̃: 0.93%
95% mean confidence interval for instructions value: -1.05 -1.04
95% mean confidence interval for instructions %-change: -0.81% -0.78%
Instructions are helped.
total cycles in shared programs: 153894864 -> 153885988 (<.01%)
cycles in affected programs: 50643925 -> 50635049 (-0.02%)
helped: 9361
HURT: 10534
helped stats (abs) min: 1 max: 1966 x̄: 19.42 x̃: 4
helped stats (rel) min: <.01% max: 34.97% x̄: 0.90% x̃: 0.22%
HURT stats (abs) min: 1 max: 1371 x̄: 16.42 x̃: 5
HURT stats (rel) min: <.01% max: 55.10% x̄: 0.81% x̃: 0.27%
95% mean confidence interval for cycles value: -1.27 0.38
95% mean confidence interval for cycles %-change: -0.03% 0.04%
Inconclusive result (value mean confidence interval includes 0).
LOST: 6
GAINED: 24
Reviewed-by: Matt Turner <mattst88@gmail.com>
2019-07-11 10:20:03 -07:00
80117117bd
nir: Add optimization to use ROR/ROL instructions
...
v2: 1) Add more optimization rules for ROL/ROR (Matt Turner)
2) Add lowering rules for ROL/ROR (Matt Turner)
Signed-off-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2019-07-01 10:14:22 -07:00
Ian Romanick
Elie Tournier
Rhys Perry
Jonathan Marek
Rob Clark
Daniel Schürmann
Andres Gomez
Erico Nunes
Jason Ekstrand
Sagar Ghuge