Commit graph

2354 commits

Author SHA1 Message Date
Ian Romanick
3a944316c4 nir: Silence unused parameter warnings in generated nir_constant_expressions code
Reduces my build from 2075 warnings to 2023 warnings by silencing 52
instances of things like

src/compiler/nir/nir_constant_expressions.c: In function ‘evaluate_bfi’:
src/compiler/nir/nir_constant_expressions.c:1812:61: warning: unused parameter ‘bit_size’ [-Wunused-parameter]
 evaluate_bfi(MAYBE_UNUSED unsigned num_components, unsigned bit_size,
                                                             ^~~~~~~~

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
2018-03-02 16:10:44 -08:00
Jose Maria Casanova Crespo
4420d8866c nir/search: Include 8 and 16-bit support in construct_value
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2018-03-01 09:16:03 -08:00
Jason Ekstrand
99ee40fb54 nir/search: Support 8 and 16-bit constants in match_value
Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
2018-03-01 09:15:01 -08:00
Alejandro Piñeiro
e72fb4e611 nir/serialize: handle var->name being NULL
var->name could be NULL under ARB_gl_spirv for example. And in any
case, the code is already handing var name being NULL when reading a
variable, so it is consistent to do it writing a variable too.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2018-03-01 08:23:33 +01:00
Jose Maria Casanova Crespo
02266f9ba1 spirv/i965/anv: Relax push constant offset assertions being 32-bit aligned
The introduction of 16-bit types with VK_KHR_16bit_storages implies that
push constant offsets could be multiple of 2-bytes. Some assertions are
updated so offsets should be just multiple of size of the base type but
in some cases we can not assume it as doubles aren't aligned to 8 bytes
in some cases.

For 16-bit types, the push constant offset takes into account the
internal offset in the 32-bit uniform bucket adding 2-bytes when we access
not 32-bit aligned elements. In all 32-bit aligned cases it just becomes 0.

v2: Assert offsets to be aligned to the dest type size. (Jason Ekstrand)

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2018-02-28 21:37:40 -08:00
Jose Maria Casanova Crespo
23ffb7c2d1 spirv: Calculate properly 16-bit vector sizes
Range in 16-bit push constants load was being calculated
wrongly using 4-bytes per element instead of 2-bytes as it
should be.

v2: Use glsl_get_bit_size instead of if statement
    (Jason Ekstrand)

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2018-02-28 21:37:40 -08:00
Samuel Iglesias Gonsálvez
e207b2e2c8 glsl/linker: fix bug when checking precision qualifier
According to GLSL ES 3.2 spec, see table in 9.2.1 "Linked Shaders"
section, the precision qualifier should match for uniform variables.
This also applies to previous GLSL ES 3.x specs.

This 'if' checks the condition for uniform variables, while for UBOs
it is checked in link_interface_blocks.cpp.

Fixes: b50b82b8a5
("glsl/es31: precision qualifier doesn't need to match in shader interface block members")

Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
2018-02-28 07:04:13 +01:00
Timothy Arceri
0c1f37cc2d nir: fix interger divide by zero crash during constant folding
From the GLSL 4.60 spec Section 5.9 (Expressions):

   "Dividing by zero does not cause an exception but does result in
    an unspecified value."

Fixes: 89285e4d47 "nir: add new constant folding infrastructure"

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105271
2018-02-28 15:55:39 +11:00
Timothy Arceri
a050ea60ee nir: add lower_ldexp to nir compiler options
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2018-02-28 09:23:49 +11:00
Francisco Jerez
69b4a9d21d util/bitset: Make C++ wrapper trivially constructible.
In order to fix a build failure on compilers not implementing
unrestricted unions, which is a C++11 feature.

v2: Provide signed integer comparison and assignment operators instead
    of BITSET_WORD ones to avoid spurious ambiguity warnings on
    comparisons with a signed integer literal.

Fixes: ba79a90fb5 "glsl: Switch ast_type_qualifier to a 128-bit bitset."
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105238
Tested-by: Roland Scheidegger <sroland@vmware.com>
Tested-By: George Kyriazis <george.kyriazis@intel.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
2018-02-27 11:38:18 -08:00
Francisco Jerez
c6c64d4d6a glsl: Silence warnings when reading from a framebuffer fetch output.
Framebuffer fetch outputs are implicitly initialized upon entry to the
fragment shader.

Reviewed-by: Plamena Manolova <plamena.manolova@intel.com>
2018-02-24 15:28:36 -08:00
Francisco Jerez
537bb1da98 glsl: Specify framebuffer fetch coherency mode in lower_blend_equation_advanced().
This requires passing an extra argument to the lowering pass because
the KHR_blend_equation_advanced specification doesn't seem to define
any mechanism for the implementation to determine at compile-time
whether coherent blending can ever be used (not even an "#extension
KHR_blend_equation_advanced_coherent" directive seems to be required
in the shader source AFAICT).

In the long run we'll probably want to do state-dependent recompiles
based on the value of ctx->Color.BlendCoherent, but right now there
would be no benefit from that because the only driver that supports
coherent framebuffer fetch is i965 on SKL+ hardware, which are unable
to support the non-coherent path for the moment because of texture
layout issues, so framebuffer fetch coherency is always enabled for
them.

Reviewed-by: Plamena Manolova <plamena.manolova@intel.com>
2018-02-24 15:28:36 -08:00
Francisco Jerez
ef9e3f63ca glsl: Add support for the framebuffer fetch layout(noncoherent) qualifier.
This allows the application to request framebuffer fetch coherency
with per-fragment output granularity.  Coherent framebuffer fetch
outputs (which is the default if no qualifier is present for
compatibility with older versions of the EXT_shader_framebuffer_fetch
extension) will have ir_variable_data::memory_coherent set to true.

Reviewed-by: Plamena Manolova <plamena.manolova@intel.com>
2018-02-24 15:28:36 -08:00
Francisco Jerez
0aeec504b4 glsl: Allow layout token for EXT_shader_framebuffer_fetch_non_coherent.
EXT_shader_framebuffer_fetch_non_coherent requires layout qualifiers
even on GL(ES) 2.

Reviewed-by: Plamena Manolova <plamena.manolova@intel.com>
2018-02-24 15:28:36 -08:00
Francisco Jerez
1bc01db95f glsl: Initialize ir_variable_data::fb_fetch_output earlier for GL(ES) 2.
At the same point where it is initialized on GL(ES) 3.0+ so we can
implement some common layout qualifier handling in a future commit.
Until now the fb_fetch_output flag would be inherited from the
original implicit gl_LastFragData declaration at a later point in the
AST to GLSL IR translation.

Reviewed-by: Plamena Manolova <plamena.manolova@intel.com>
2018-02-24 15:28:36 -08:00
Francisco Jerez
6ebefb0fd5 glsl: Replace MESA_shader_framebuffer_fetch extension flags with EXT ones.
Reviewed-by: Plamena Manolova <plamena.manolova@intel.com>
2018-02-24 15:28:36 -08:00
Francisco Jerez
ba79a90fb5 glsl: Switch ast_type_qualifier to a 128-bit bitset.
This should end the drought of bits in the ast_type_qualifier object.
The bitset_t type works pretty much as a drop-in replacement for the
current uint64_t bitset.

The only catch is that the bitset_t type as defined in the previous
commit doesn't have a trivial constructor (because it has a
user-defined constructor), so it cannot be used as union member
without providing a user-defined constructor for the union (which
causes it in turn to be non-trivially constructible).  This annoyance
could be easily addressed in C++11 by declaring the default
constructor of bitset_t to be the implicitly defined one -- IMO one
more reason to drop support for GCC 4.2-4.3.

The other minor change was required because glsl_parser_extras.cpp was
hard-coding the type of bitset temporaries as uint64_t, which (unlike
would have been the case if the uint64_t had been replaced with
e.g. an __int128) would otherwise have caused a build failure, because
the boolean conversion operator of bitset_t is marked explicit (if
C++11 is available), so the bitset won't be silently truncated down to
1 bit in order to use it to initialize the uint64_t temporaries
(yikes).

Reviewed-by: Plamena Manolova <plamena.manolova@intel.com>
2018-02-24 15:28:36 -08:00
Marek Olšák
605a7f6db5 mesa: implement ARB_compatibility
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
Reviewed-by: Brian Paul <brianp@vmware.com>
2018-02-23 20:50:15 +01:00
Samuel Pitoiset
63fb30c674 nir: lower fexp2(fmul(flog2(a), 2)) to fmul(a, a)
Similar for the 4 case.

Suggested by Bas.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2018-02-22 20:40:45 +01:00
Samuel Pitoiset
b18997876f nir: add is_used_once for fmul(fexp2(a), fexp2(b)) to fexp2(fadd(a, b))
Otherwise the code size increases because the original fexp2()
instructions can't be deleted.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2018-02-22 20:40:43 +01:00
Samuel Pitoiset
3c40be126f spirv: apply memory qualifiers to images
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2018-02-22 20:39:53 +01:00
Kenneth Graunke
183ce5e629 glsl: Parse 'layout' as a token with advanced blending or bindless
Both KHR_blend_equation_advanced and ARB_bindless_texture provide
layout qualifiers, and are exposed in compatibility contexts.  We
need to parse the layout qualifier as a token in order for those
to work, but forgot to extend this check.

ARB_shader_image_load_store would need a similar treatment, but we
don't expose that in legacy OpenGL contexts.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105161
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
2018-02-21 17:50:57 -08:00
Timothy Arceri
cdeac00267 nir: remove old assert
This was originally intended to make sure the remap location
was not -1. However the code has changed alot since then,
the location is now never set to -1 and we also handle
components meaning this old assert has been doing comparisions
with the pointer to the array of component data.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105183
2018-02-22 09:31:00 +11:00
Eric Anholt
4636ce362d glsl/tests: Fix a compiler warning about signed/unsigned loop comparison.
Fixes: d32956935e ("glsl: Walk a list of ir_dereference_array to mark array elements as accessed")
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2018-02-20 20:23:57 -08:00
Eric Anholt
1b313eedb5 glsl: Silence warnings in the uniform initializer test about 16-bit types
They should probably get unit tests implemented, but this cleans up a
bunch of warnings in my build for now.

Fixes: 59f458cd87 ("glsl: Add 16-bit types")
Cc: Eduardo Lima Mitev <elima@igalia.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2018-02-20 20:23:57 -08:00
Timothy Arceri
347038baa9 glsl/nir: add pixel_center_integer to shader info
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2018-02-19 08:47:48 +11:00
Eric Engestrom
a176b053b6 glsl: fix sizeof(pointer) bug
Doesn't really change anything to the test though ¯\_(ツ)_/¯

CID: 1429511
Fixes: e8495646af "glsl/tests: changes to test_disk_cache_create test"
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
2018-02-16 12:04:29 +00:00
Marek Olšák
6b1e26e181 mesa: move STATE_LENGTH to shader_enums.h and use it everywhere
Reviewed-by: Brian Paul <brianp@vmware.com>
2018-02-13 01:00:45 +01:00
Marek Olšák
e149a0253c mesa,glsl,nir: reduce gl_state_index size to 2 bytes
Let's use the new gl_state_index16 type everywhere and remove
the typecasts.

This helps reduce the size of gl_program_parameter.

Reviewed-by: Brian Paul <brianp@vmware.com>
2018-02-13 01:00:45 +01:00
Marek Olšák
65ed98839b mesa: reduce the size of gl_program
gl_program: 1456 -> 976 bytes

Reviewed-by: Brian Paul <brianp@vmware.com>
2018-02-13 01:00:45 +01:00
Eric Anholt
21670f8208 glsl/tests: Fix strict aliasing warning about int64/double.
Fixes: 4bf9862747 ("glsl/tests: Add UINT64 and INT64 types")
Reviewed-by: Rhys Kidd <rhyskidd@gmail.com>
2018-02-12 20:48:43 +00:00
Alejandro Piñeiro
f32b01ca43 glsl/linker: remove ubo explicit binding handling
This is already handled at link_uniform_blocks, specifically at
process_block_array_leaf.

Additionally, this code was not handling correctly arrays of
arrays. When creating the name of the block to set the binding, it
only took into account the first level, so any attempt to set a
explicit binding on a array of array ubo would trigger an assertion.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2018-02-09 08:32:42 +01:00
Scott D Phillips
1f4d2433e7 meson: Add build option for tools
Add a build option to control building some of the misc tools we
have. Also set the executables to install, presumably you want
that if you're asking for the build.

v2: set 'install:' to the with_tools value, not true (Jordan)
    handle 'all' in a the comma list (Dylan)
    Add freedreno's tools (Dylan)

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2018-02-08 11:24:42 -08:00
Tapani Pälli
e8495646af glsl/tests: changes to test_disk_cache_create test
Next patch will allow disk_cache instance to be created without
path set for it, modify some test cases that assume disk_cache
creation to fail with invalid path. Creation should succeed but
simple put/get test fail.

v2: leave tests as is but check that both cache struct exists
    and try simple put/get that should fail with invalid path set
    (Emil)

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> (v1)
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2018-02-07 14:45:34 +02:00
Tapani Pälli
83c81b6cce glsl/tests: move utility functions in cache_test
Patch moves functions higher so that we can utilize them from
test_disk_cache_create which is modified by next patch.

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2018-02-07 14:45:34 +02:00
Samuel Pitoiset
3488a3f033 radv: run nir_opt_shrink_load
LLVM can't shrink loads.

Polaris10:
Totals from affected shaders:
SGPRS: 62528 -> 59955 (-4.11 %)
VGPRS: 44708 -> 44616 (-0.21 %)
Spilled SGPRs: 16 -> 8 (-50.00 %)
Code Size: 1355504 -> 1355172 (-0.02 %) bytes
Max Waves: 11710 -> 11670 (-0.34 %)

Vega10:
Totals from affected shaders:
SGPRS: 51448 -> 50371 (-2.09 %)
VGPRS: 39140 -> 39048 (-0.24 %)
Spilled SGPRs: 16 -> 16 (0.00 %)
Code Size: 1307188 -> 1304296 (-0.22 %) bytes
Max Waves: 11312 -> 11292 (-0.18 %)

This reduces SGPRs spilling in MadMax, and it also reduces
number of SGPRs in DOW3 and F12017. The number of waves slightly
decreases in F1 but I don't see any performance changes after
benchmarking it. Talos and Serious Sam are not affected because
they don't use any push constants.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2018-02-06 23:08:44 +01:00
Samuel Pitoiset
e68562b94b nir: add nir_opt_shrink_load pass
This is a very simple pass that just shrinks load_push_constant
intrinsics when some components are unused. For now, it can just
shrink vec4 to vec3, vec3 to vec2 and so on.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2018-02-06 23:08:39 +01:00
Iago Toral Quiroga
ef439a4fdc spirv: split constant initializers on in/out structs
The SPIR-V parser splits in/out struct variables and creates
a separate variable for each first-level member of the struct.
When the struct variable has an initializer this means that we also
need to split the initializer.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2018-02-06 07:50:18 +01:00
Ilia Mirkin
02a6d901ee mesa: add OES_EGL_image_external_essl3 support
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
2018-02-06 07:28:11 +02:00
Juan A. Suarez Romero
4195eed961 glsl/linker: check same name is not used in block and outside
According with OpenGL GLSL 3.20 spec, section 4.3.9:

  "It is a link-time error if any particular shader interface
   contains:
     - two different blocks, each having no instance name, and each
       having a member of the same name, or
     - a variable outside a block, and a block with no instance name,
       where the variable has the same name as a member in the block."

This fixes a previous commit 9b894c8 ("glsl/linker: link-error using the
same name in unnamed block and outside") that covered this case, but
did not take in account that precision qualifiers are ignored when
comparing blocks with no instance name.

With this commit, the original tests
KHR-GL*.shaders.uniform_block.common.name_matching keep fixed, and also
dEQP-GLES31.functional.shaders.linkage.uniform.block.differing_precision
regression is fixed, which was broken by previous commit.

v2: use helper varibles (Matteo Bruni)

Fixes: 9b894c8 ("glsl/linker: link-error using the same name in unnamed block and outside")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104668
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104777
CC: Mark Janes <mark.a.janes@intel.com>
CC: "18.0" <mesa-stable@lists.freedesktop.org>
Tested-by: Matteo Bruni <matteo.mystral@gmail.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
2018-02-05 18:10:43 +01:00
Mathias Fröhlich
186f03cfb0 mesa: Put materials at the end of the generic block.
The materials are now moved to the end of the
generic attributes block to the range 4-15.

Before, the way the position and generic 0 attribute
is handled was dependent on the presence and kind of
the currently attached vertex program. With this
change the way the position attribute and the generic 0
attribute is treated only depends on the enabled
flag of those two arrays.
This will later help to untangle the update dependencies
between enabled arrays and shader inputs.

v2: s,VERT_ATTRIB_MAT_OFFSET,VERT_ATTRIB_MAT0,g

Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
Reviewed-by: Brian Paul <brianp@vmware.com>
2018-02-01 22:39:06 +01:00
Mathias Fröhlich
38b41fd718 mesa: Use defines for the aliased material array attributes.
Instead of just assuming that the material attributes
just overlap with the generic attributes 0-12, give
them symbolic defines so that we can easier move them
to an other range.

Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
Reviewed-by: Brian Paul <brianp@vmware.com>
2018-02-01 22:39:06 +01:00
Ian Romanick
ee63933a73 nir: Distribute binary operations with constants into bcsel
This was specifically designed to simplify 1+mix(0, a-1, condition) to
mix(1, a, condition) by pushing the 1+ inside.

Skylake, Broadwell, and Haswell had similar results.  Skylake shown.
total instructions in shared programs: 14521753 -> 14521716 (<.01%)
instructions in affected programs: 10619 -> 10582 (-0.35%)
helped: 51
HURT: 14
helped stats (abs) min: 1 max: 12 x̄: 1.43 x̃: 1
helped stats (rel) min: 0.20% max: 3.58% x̄: 1.01% x̃: 0.95%
HURT stats (abs)   min: 1 max: 11 x̄: 2.57 x̃: 1
HURT stats (rel)   min: 0.22% max: 1.75% x̄: 1.20% x̃: 1.32%
95% mean confidence interval for instructions value: -1.31 0.17
95% mean confidence interval for instructions %-change: -0.80% -0.27%
Inconclusive result (value mean confidence interval includes 0).

total cycles in shared programs: 533000205 -> 533003533 (<.01%)
cycles in affected programs: 110610 -> 113938 (3.01%)
helped: 43
HURT: 28
helped stats (abs) min: 6 max: 440 x̄: 27.12 x̃: 16
helped stats (rel) min: 0.39% max: 4.84% x̄: 1.60% x̃: 1.67%
HURT stats (abs)   min: 2 max: 3066 x̄: 160.50 x̃: 14
HURT stats (rel)   min: 0.08% max: 77.78% x̄: 5.16% x̃: 0.62%
95% mean confidence interval for cycles value: -43.81 137.56
95% mean confidence interval for cycles %-change: -1.47% 3.60%
Inconclusive result (value mean confidence interval includes 0).

Ivy Bridge
total instructions in shared programs: 10018840 -> 10018713 (<.01%)
instructions in affected programs: 9431 -> 9304 (-1.35%)
helped: 51
HURT: 3
helped stats (abs) min: 1 max: 80 x̄: 2.76 x̃: 1
helped stats (rel) min: 0.20% max: 16.43% x̄: 1.16% x̃: 0.81%
HURT stats (abs)   min: 1 max: 12 x̄: 4.67 x̃: 1
HURT stats (rel)   min: 0.22% max: 1.33% x̄: 0.59% x̃: 0.22%
95% mean confidence interval for instructions value: -5.36 0.66
95% mean confidence interval for instructions %-change: -1.66% -0.46%
Inconclusive result (value mean confidence interval includes 0).

total cycles in shared programs: 87571944 -> 87572785 (<.01%)
cycles in affected programs: 117234 -> 118075 (0.72%)
helped: 42
HURT: 23
helped stats (abs) min: 2 max: 114 x̄: 51.90 x̃: 30
helped stats (rel) min: 0.11% max: 11.01% x̄: 4.45% x̃: 2.74%
HURT stats (abs)   min: 1 max: 2341 x̄: 131.35 x̃: 10
HURT stats (rel)   min: 0.06% max: 37.11% x̄: 2.75% x̃: 0.61%
95% mean confidence interval for cycles value: -61.05 86.93
95% mean confidence interval for cycles %-change: -3.47% -0.33%
Inconclusive result (value mean confidence interval includes 0).

Sandy Bridge
total instructions in shared programs: 10542933 -> 10542844 (<.01%)
instructions in affected programs: 11487 -> 11398 (-0.77%)
helped: 52
HURT: 3
helped stats (abs) min: 1 max: 40 x̄: 1.96 x̃: 1
helped stats (rel) min: 0.08% max: 8.16% x̄: 0.90% x̃: 0.72%
HURT stats (abs)   min: 1 max: 11 x̄: 4.33 x̃: 1
HURT stats (rel)   min: 0.22% max: 1.22% x̄: 0.55% x̃: 0.22%
95% mean confidence interval for instructions value: -3.17 -0.07
95% mean confidence interval for instructions %-change: -1.13% -0.52%
Instructions are helped.

total cycles in shared programs: 146098397 -> 146097094 (<.01%)
cycles in affected programs: 128140 -> 126837 (-1.02%)
helped: 47
HURT: 8
helped stats (abs) min: 2 max: 333 x̄: 29.21 x̃: 18
helped stats (rel) min: 0.13% max: 5.04% x̄: 1.18% x̃: 0.95%
HURT stats (abs)   min: 1 max: 16 x̄: 8.75 x̃: 9
HURT stats (rel)   min: 0.08% max: 0.43% x̄: 0.30% x̃: 0.34%
95% mean confidence interval for cycles value: -37.49 -9.90
95% mean confidence interval for cycles %-change: -1.22% -0.71%
Cycles are helped.

Iron Lake
total instructions in shared programs: 7886711 -> 7886509 (<.01%)
instructions in affected programs: 10425 -> 10223 (-1.94%)
helped: 50
HURT: 2
helped stats (abs) min: 1 max: 78 x̄: 4.08 x̃: 1
helped stats (rel) min: 0.34% max: 15.38% x̄: 1.12% x̃: 0.54%
HURT stats (abs)   min: 1 max: 1 x̄: 1.00 x̃: 1
HURT stats (rel)   min: 0.86% max: 0.91% x̄: 0.89% x̃: 0.89%
95% mean confidence interval for instructions value: -8.05 0.28
95% mean confidence interval for instructions %-change: -1.83% -0.26%
Inconclusive result (value mean confidence interval includes 0).

total cycles in shared programs: 178115324 -> 178114612 (<.01%)
cycles in affected programs: 765726 -> 765014 (-0.09%)
helped: 39
HURT: 1
helped stats (abs) min: 2 max: 276 x̄: 18.31 x̃: 8
helped stats (rel) min: <.01% max: 8.47% x̄: 0.39% x̃: 0.04%
HURT stats (abs)   min: 2 max: 2 x̄: 2.00 x̃: 2
HURT stats (rel)   min: 0.03% max: 0.03% x̄: 0.03% x̃: 0.03%
95% mean confidence interval for cycles value: -32.07 -3.53
95% mean confidence interval for cycles %-change: -0.86% 0.10%
Inconclusive result (%-change mean confidence interval includes 0).

GM45
total instructions in shared programs: 4857762 -> 4857661 (<.01%)
instructions in affected programs: 5523 -> 5422 (-1.83%)
helped: 25
HURT: 1
helped stats (abs) min: 1 max: 78 x̄: 4.08 x̃: 1
helped stats (rel) min: 0.34% max: 13.61% x̄: 1.04% x̃: 0.52%
HURT stats (abs)   min: 1 max: 1 x̄: 1.00 x̃: 1
HURT stats (rel)   min: 0.86% max: 0.86% x̄: 0.86% x̃: 0.86%
95% mean confidence interval for instructions value: -9.99 2.22
95% mean confidence interval for instructions %-change: -2.01% 0.08%
Inconclusive result (value mean confidence interval includes 0).

total cycles in shared programs: 122179674 -> 122179194 (<.01%)
cycles in affected programs: 530162 -> 529682 (-0.09%)
helped: 22
HURT: 1
helped stats (abs) min: 2 max: 292 x̄: 21.91 x̃: 7
helped stats (rel) min: <.01% max: 8.65% x̄: 0.44% x̃: 0.04%
HURT stats (abs)   min: 2 max: 2 x̄: 2.00 x̃: 2
HURT stats (rel)   min: 0.03% max: 0.03% x̄: 0.03% x̃: 0.03%
95% mean confidence interval for cycles value: -46.56 4.82
95% mean confidence interval for cycles %-change: -1.20% 0.36%
Inconclusive result (value mean confidence interval includes 0).

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Elie Tournier <elie.tournier@collabora.com>
2018-01-30 15:40:15 -08:00
Ian Romanick
03fb13f646 nir: Rearrange logic op-compounded integer compares
Skylake and Broadwell had similar results.  Skylake shown.
total instructions in shared programs: 14521769 -> 14521753 (<.01%)
instructions in affected programs: 8782 -> 8766 (-0.18%)
helped: 16
HURT: 0
helped stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1
helped stats (rel) min: 0.12% max: 0.40% x̄: 0.20% x̃: 0.18%
95% mean confidence interval for instructions value: -1.00 -1.00
95% mean confidence interval for instructions %-change: -0.23% -0.16%
Instructions are helped.

total cycles in shared programs: 533000376 -> 533000205 (<.01%)
cycles in affected programs: 447035 -> 446864 (-0.04%)
helped: 9
HURT: 9
helped stats (abs) min: 2 max: 40 x̄: 35.78 x̃: 40
helped stats (rel) min: 0.02% max: 0.18% x̄: 0.10% x̃: 0.09%
HURT stats (abs)   min: 1 max: 52 x̄: 16.78 x̃: 10
HURT stats (rel)   min: <.01% max: 1.11% x̄: 0.29% x̃: 0.12%
95% mean confidence interval for cycles value: -25.07 6.07
95% mean confidence interval for cycles %-change: -0.08% 0.27%
Inconclusive result (value mean confidence interval includes 0).

No changes on GM45, Iron Lake, Sandy Bridge, Ivy Bridge, or Haswell.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Elie Tournier <elie.tournier@collabora.com>
2018-01-30 15:40:14 -08:00
Ian Romanick
053be9f020 nir: Rearrange and-compounded float compares
If both comparisons are used as sources for instructions other than the
iand, this transformation is detrimental.  If the non-identical value in
both compares is constant, the fmin or fmax will be constant-folded
away, so the transformation is always a win.

It is interesting to me that on Iron Lake only 81 shaders have
instruction counts changed, but 726 shaders have cycle counts changed.

shader-db results:

Skylake
total instructions in shared programs: 14525728 -> 14521017 (-0.03%)
instructions in affected programs: 1164726 -> 1160015 (-0.40%)
helped: 1692
HURT: 5
helped stats (abs) min: 1 max: 637 x̄: 2.79 x̃: 2
helped stats (rel) min: 0.07% max: 16.36% x̄: 0.81% x̃: 0.33%
HURT stats (abs)   min: 1 max: 12 x̄: 3.20 x̃: 1
HURT stats (rel)   min: 0.38% max: 2.86% x̄: 2.36% x̃: 2.86%
95% mean confidence interval for instructions value: -3.52 -2.03
95% mean confidence interval for instructions %-change: -0.86% -0.74%
Instructions are helped.

total cycles in shared programs: 533115449 -> 532991404 (-0.02%)
cycles in affected programs: 119401803 -> 119277758 (-0.10%)
helped: 1145
HURT: 467
helped stats (abs) min: 1 max: 34644 x̄: 145.92 x̃: 18
helped stats (rel) min: <.01% max: 45.33% x̄: 1.58% x̃: 0.42%
HURT stats (abs)   min: 1 max: 1590 x̄: 92.15 x̃: 15
HURT stats (rel)   min: <.01% max: 13.48% x̄: 1.26% x̃: 0.39%
95% mean confidence interval for cycles value: -122.16 -31.74
95% mean confidence interval for cycles %-change: -0.94% -0.57%
Cycles are helped.

total spills in shared programs: 9597 -> 9534 (-0.66%)
spills in affected programs: 403 -> 340 (-15.63%)
helped: 1
HURT: 1

total fills in shared programs: 13904 -> 13790 (-0.82%)
fills in affected programs: 1627 -> 1513 (-7.01%)
helped: 2
HURT: 1

LOST:   0
GAINED: 2

Broadwell
total instructions in shared programs: 14816966 -> 14812590 (-0.03%)
instructions in affected programs: 1499885 -> 1495509 (-0.29%)
helped: 1672
HURT: 15
helped stats (abs) min: 1 max: 455 x̄: 2.70 x̃: 2
helped stats (rel) min: 0.05% max: 16.36% x̄: 0.81% x̃: 0.33%
HURT stats (abs)   min: 1 max: 21 x̄: 9.20 x̃: 8
HURT stats (rel)   min: 0.08% max: 2.86% x̄: 1.06% x̃: 0.53%
95% mean confidence interval for instructions value: -3.14 -2.05
95% mean confidence interval for instructions %-change: -0.85% -0.73%
Instructions are helped.

total cycles in shared programs: 559353622 -> 559345595 (<.01%)
cycles in affected programs: 139893703 -> 139885676 (<.01%)
helped: 921
HURT: 697
helped stats (abs) min: 1 max: 42424 x̄: 143.45 x̃: 18
helped stats (rel) min: <.01% max: 36.23% x̄: 2.02% x̃: 0.87%
HURT stats (abs)   min: 1 max: 2370 x̄: 178.03 x̃: 38
HURT stats (rel)   min: <.01% max: 17.35% x̄: 0.71% x̃: 0.14%
95% mean confidence interval for cycles value: -59.64 49.72
95% mean confidence interval for cycles %-change: -1.02% -0.66%
Inconclusive result (value mean confidence interval includes 0).

total spills in shared programs: 78902 -> 78861 (-0.05%)
spills in affected programs: 2418 -> 2377 (-1.70%)
helped: 1
HURT: 11

total fills in shared programs: 83782 -> 83678 (-0.12%)
fills in affected programs: 3515 -> 3411 (-2.96%)
helped: 2
HURT: 11

LOST:   0
GAINED: 5

Haswell and Ivy Bridge had similar results. Haswell shown.
total instructions in shared programs: 9033898 -> 9032010 (-0.02%)
instructions in affected programs: 308064 -> 306176 (-0.61%)
helped: 921
HURT: 4
helped stats (abs) min: 1 max: 20 x̄: 2.05 x̃: 1
helped stats (rel) min: 0.17% max: 17.54% x̄: 0.80% x̃: 0.35%
HURT stats (abs)   min: 1 max: 1 x̄: 1.00 x̃: 1
HURT stats (rel)   min: 3.23% max: 3.23% x̄: 3.23% x̃: 3.23%
95% mean confidence interval for instructions value: -2.21 -1.87
95% mean confidence interval for instructions %-change: -0.88% -0.68%
Instructions are helped.

total cycles in shared programs: 84628949 -> 84620520 (<.01%)
cycles in affected programs: 2164913 -> 2156484 (-0.39%)
helped: 518
HURT: 359
helped stats (abs) min: 1 max: 440 x̄: 41.52 x̃: 20
helped stats (rel) min: <.01% max: 17.17% x̄: 1.95% x̃: 1.01%
HURT stats (abs)   min: 1 max: 586 x̄: 36.43 x̃: 8
HURT stats (rel)   min: 0.04% max: 18.65% x̄: 1.47% x̃: 0.40%
95% mean confidence interval for cycles value: -15.17 -4.05
95% mean confidence interval for cycles %-change: -0.77% -0.32%
Cycles are helped.

LOST:   0
GAINED: 4

Sandy Bridge
total instructions in shared programs: 10544860 -> 10542933 (-0.02%)
instructions in affected programs: 360019 -> 358092 (-0.54%)
helped: 931
HURT: 4
helped stats (abs) min: 1 max: 20 x̄: 2.07 x̃: 1
helped stats (rel) min: 0.11% max: 15.52% x̄: 0.68% x̃: 0.30%
HURT stats (abs)   min: 1 max: 1 x̄: 1.00 x̃: 1
HURT stats (rel)   min: 3.33% max: 3.33% x̄: 3.33% x̃: 3.33%
95% mean confidence interval for instructions value: -2.23 -1.89
95% mean confidence interval for instructions %-change: -0.76% -0.58%
Instructions are helped.

total cycles in shared programs: 146106820 -> 146098397 (<.01%)
cycles in affected programs: 3435047 -> 3426624 (-0.25%)
helped: 572
HURT: 329
helped stats (abs) min: 1 max: 1289 x̄: 32.52 x̃: 15
helped stats (rel) min: <.01% max: 26.29% x̄: 0.97% x̃: 0.33%
HURT stats (abs)   min: 1 max: 1714 x̄: 30.93 x̃: 6
HURT stats (rel)   min: 0.02% max: 41.31% x̄: 1.13% x̃: 0.19%
95% mean confidence interval for cycles value: -16.85 -1.85
95% mean confidence interval for cycles %-change: -0.39% -0.01%
Cycles are helped.

LOST:   1
GAINED: 0

Iron Lake
total instructions in shared programs: 7886925 -> 7886711 (<.01%)
instructions in affected programs: 25763 -> 25549 (-0.83%)
helped: 75
HURT: 6
helped stats (abs) min: 1 max: 13 x̄: 3.33 x̃: 1
helped stats (rel) min: 0.35% max: 17.57% x̄: 1.96% x̃: 0.53%
HURT stats (abs)   min: 1 max: 16 x̄: 6.00 x̃: 1
HURT stats (rel)   min: 2.86% max: 4.79% x̄: 3.49% x̃: 2.86%
95% mean confidence interval for instructions value: -3.69 -1.60
95% mean confidence interval for instructions %-change: -2.54% -0.57%
Instructions are helped.

total cycles in shared programs: 178116888 -> 178115324 (<.01%)
cycles in affected programs: 5858790 -> 5857226 (-0.03%)
helped: 484
HURT: 242
helped stats (abs) min: 2 max: 76 x̄: 5.27 x̃: 6
helped stats (rel) min: 0.01% max: 10.70% x̄: 0.18% x̃: 0.06%
HURT stats (abs)   min: 2 max: 76 x̄: 4.07 x̃: 2
HURT stats (rel)   min: 0.01% max: 3.99% x̄: 0.19% x̃: 0.03%
95% mean confidence interval for cycles value: -2.76 -1.55
95% mean confidence interval for cycles %-change: -0.12% 0.01%
Inconclusive result (%-change mean confidence interval includes 0).

GM45
total instructions in shared programs: 4857870 -> 4857762 (<.01%)
instructions in affected programs: 13994 -> 13886 (-0.77%)
helped: 39
HURT: 5
helped stats (abs) min: 1 max: 13 x̄: 3.28 x̃: 2
helped stats (rel) min: 0.33% max: 17.11% x̄: 1.86% x̃: 0.48%
HURT stats (abs)   min: 1 max: 16 x̄: 4.00 x̃: 1
HURT stats (rel)   min: 2.86% max: 4.71% x̄: 3.23% x̃: 2.86%
95% mean confidence interval for instructions value: -3.86 -1.05
95% mean confidence interval for instructions %-change: -2.61% 0.04%
Inconclusive result (%-change mean confidence interval includes 0).

total cycles in shared programs: 122180744 -> 122179674 (<.01%)
cycles in affected programs: 3686646 -> 3685576 (-0.03%)
helped: 273
HURT: 141
helped stats (abs) min: 2 max: 76 x̄: 5.81 x̃: 6
helped stats (rel) min: 0.01% max: 10.70% x̄: 0.18% x̃: 0.06%
HURT stats (abs)   min: 2 max: 76 x̄: 3.66 x̃: 2
HURT stats (rel)   min: 0.01% max: 3.99% x̄: 0.16% x̃: 0.02%
95% mean confidence interval for cycles value: -3.42 -1.75
95% mean confidence interval for cycles %-change: -0.15% 0.03%
Inconclusive result (%-change mean confidence interval includes 0).

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Elie Tournier <elie.tournier@collabora.com>
2018-01-30 15:40:14 -08:00
Ian Romanick
821e7a4d32 nir: Separate a weird compare with zero to two compares with zero
min(a+b, c+d) >= 0 becomes (a+b >= 0 && c+d >= 0).

No shader-db changes, but it does prevent 6 to 12 instruction
regressions in the next patch on all measured Intel platforms.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Elie Tournier <elie.tournier@collabora.com>
2018-01-30 15:40:14 -08:00
Ian Romanick
68420d8322 nir: Simplify min and max of b2f
v2: Rebase on almost 2 years.  Require that one of the arguments to fmin
or fmax be used only once.  This prevents some regressions.

shader-db results:

Skylake and Broadwell had similar results.  Skylake shown.
total instructions in shared programs: 14526021 -> 14525913 (<.01%)
instructions in affected programs: 4613 -> 4505 (-2.34%)
helped: 31
HURT: 0
helped stats (abs) min: 1 max: 4 x̄: 3.48 x̃: 4
helped stats (rel) min: 0.62% max: 6.67% x̄: 3.31% x̃: 2.42%

total cycles in shared programs: 533118710 -> 533118403 (<.01%)
cycles in affected programs: 34334 -> 34027 (-0.89%)
helped: 24
HURT: 0
helped stats (abs) min: 4 max: 24 x̄: 12.79 x̃: 14
helped stats (rel) min: 0.25% max: 2.40% x̄: 1.08% x̃: 1.03%

No changes on GM45, Iron Lake, Sandy Bridge, Ivy Bridge, or Haswell.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Elie Tournier <elie.tournier@collabora.com>
2018-01-30 15:40:14 -08:00
Ian Romanick
d8d18516b0 nir: Undo possible damage caused by rearranging or-compounded float compares
shader-db results:

Skylake and Broadwell had similar results (Skylake shown)
total instructions in shared programs: 14525898 -> 14525836 (<.01%)
instructions in affected programs: 1964 -> 1902 (-3.16%)
helped: 14
HURT: 0
helped stats (abs) min: 1 max: 25 x̄: 4.43 x̃: 1
helped stats (rel) min: 0.68% max: 9.77% x̄: 2.10% x̃: 0.86%
95% mean confidence interval for instructions value: -9.46 0.60
95% mean confidence interval for instructions %-change: -3.97% -0.24%
Inconclusive result (value mean confidence interval includes 0).

total cycles in shared programs: 533119892 -> 533115756 (<.01%)
cycles in affected programs: 96061 -> 91925 (-4.31%)
helped: 13
HURT: 1
helped stats (abs) min: 60 max: 596 x̄: 318.77 x̃: 300
helped stats (rel) min: 1.15% max: 5.49% x̄: 4.27% x̃: 4.42%
HURT stats (abs)   min: 8 max: 8 x̄: 8.00 x̃: 8
HURT stats (rel)   min: 0.46% max: 0.46% x̄: 0.46% x̃: 0.46%
95% mean confidence interval for cycles value: -379.43 -211.43
95% mean confidence interval for cycles %-change: -4.84% -3.01%
Cycles are helped.

Haswell, Ivy Bridge and Sandy Bridge had similar results (Haswell shown).
total instructions in shared programs: 9033948 -> 9033898 (<.01%)
instructions in affected programs: 535 -> 485 (-9.35%)
helped: 2
HURT: 0

total cycles in shared programs: 84631402 -> 84628949 (<.01%)
cycles in affected programs: 63197 -> 60744 (-3.88%)
helped: 13
HURT: 2
helped stats (abs) min: 1 max: 594 x̄: 189.62 x̃: 140
helped stats (rel) min: 0.07% max: 5.04% x̄: 3.79% x̃: 4.01%
HURT stats (abs)   min: 4 max: 8 x̄: 6.00 x̃: 6
HURT stats (rel)   min: 0.17% max: 0.45% x̄: 0.31% x̃: 0.31%
95% mean confidence interval for cycles value: -253.40 -73.67
95% mean confidence interval for cycles %-change: -4.24% -2.25%
Cycles are helped.

No changes on GM45 or Iron Lake.

v2: Add a couple more tautological compares.  Suggested by Elie.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Elie Tournier <elie.tournier@collabora.com>
2018-01-30 15:40:14 -08:00
Ian Romanick
3941cba0f7 nir: Be more conservative about rearranging or-compounded compares
If both comparisons are used as sources for instructions other than the
ior, this transformation is detrimental.  If the non-identical value in
both compares is constant, the fmin or fmax will be constant-folded
away, so the transformation is always a win.

shader-db results:

Skylake
total instructions in shared programs: 14526147 -> 14525898 (<.01%)
instructions in affected programs: 70239 -> 69990 (-0.35%)
helped: 102
HURT: 0
helped stats (abs) min: 1 max: 8 x̄: 2.44 x̃: 1
helped stats (rel) min: 0.07% max: 2.30% x̄: 0.38% x̃: 0.20%
95% mean confidence interval for instructions value: -2.86 -2.02
95% mean confidence interval for instructions %-change: -0.46% -0.31%
Instructions are helped.

total cycles in shared programs: 533120531 -> 533119892 (<.01%)
cycles in affected programs: 994875 -> 994236 (-0.06%)
helped: 76
HURT: 26
helped stats (abs) min: 1 max: 324 x̄: 27.09 x̃: 13
helped stats (rel) min: <.01% max: 4.21% x̄: 0.45% x̃: 0.18%
HURT stats (abs)   min: 1 max: 167 x̄: 54.62 x̃: 26
HURT stats (rel)   min: <.01% max: 4.36% x̄: 1.01% x̃: 0.39%
95% mean confidence interval for cycles value: -19.44 6.91
95% mean confidence interval for cycles %-change: -0.30% 0.15%
Inconclusive result (value mean confidence interval includes 0).

Broadwell
total instructions in shared programs: 14816005 -> 14815787 (<.01%)
instructions in affected programs: 64658 -> 64440 (-0.34%)
helped: 97
HURT: 0
helped stats (abs) min: 1 max: 8 x̄: 2.25 x̃: 1
helped stats (rel) min: 0.07% max: 2.30% x̄: 0.38% x̃: 0.20%
95% mean confidence interval for instructions value: -2.62 -1.87
95% mean confidence interval for instructions %-change: -0.45% -0.30%
Instructions are helped.

total cycles in shared programs: 559340386 -> 559339907 (<.01%)
cycles in affected programs: 1090491 -> 1090012 (-0.04%)
helped: 66
HURT: 28
helped stats (abs) min: 2 max: 198 x̄: 23.83 x̃: 16
helped stats (rel) min: 0.01% max: 4.21% x̄: 0.47% x̃: 0.27%
HURT stats (abs)   min: 2 max: 226 x̄: 39.07 x̃: 11
HURT stats (rel)   min: <.01% max: 4.61% x̄: 0.64% x̃: 0.20%
95% mean confidence interval for cycles value: -15.94 5.75
95% mean confidence interval for cycles %-change: -0.35% 0.07%
Inconclusive result (value mean confidence interval includes 0).

LOST:   0
GAINED: 1

Haswell
total instructions in shared programs: 9034106 -> 9033948 (<.01%)
instructions in affected programs: 24096 -> 23938 (-0.66%)
helped: 38
HURT: 0
helped stats (abs) min: 1 max: 8 x̄: 4.16 x̃: 4
helped stats (rel) min: 0.42% max: 2.29% x̄: 0.71% x̃: 0.64%
95% mean confidence interval for instructions value: -4.71 -3.60
95% mean confidence interval for instructions %-change: -0.84% -0.58%
Instructions are helped.

total cycles in shared programs: 84631628 -> 84631402 (<.01%)
cycles in affected programs: 148674 -> 148448 (-0.15%)
helped: 14
HURT: 14
helped stats (abs) min: 1 max: 114 x̄: 22.14 x̃: 12
helped stats (rel) min: 0.02% max: 2.98% x̄: 0.66% x̃: 0.21%
HURT stats (abs)   min: 1 max: 10 x̄: 6.00 x̃: 5
HURT stats (rel)   min: 0.01% max: 0.20% x̄: 0.12% x̃: 0.11%
95% mean confidence interval for cycles value: -19.42 3.28
95% mean confidence interval for cycles %-change: -0.59% 0.05%
Inconclusive result (value mean confidence interval includes 0).

Ivy Bridge
total instructions in shared programs: 10015456 -> 10015293 (<.01%)
instructions in affected programs: 27701 -> 27538 (-0.59%)
helped: 38
HURT: 0
helped stats (abs) min: 1 max: 9 x̄: 4.29 x̃: 4
helped stats (rel) min: 0.33% max: 2.79% x̄: 0.66% x̃: 0.52%
95% mean confidence interval for instructions value: -4.87 -3.71
95% mean confidence interval for instructions %-change: -0.82% -0.51%
Instructions are helped.

total cycles in shared programs: 87524771 -> 87524569 (<.01%)
cycles in affected programs: 112324 -> 112122 (-0.18%)
helped: 6
HURT: 12
helped stats (abs) min: 2 max: 111 x̄: 44.67 x̃: 20
helped stats (rel) min: 0.02% max: 2.94% x̄: 1.45% x̃: 1.26%
HURT stats (abs)   min: 1 max: 16 x̄: 5.50 x̃: 5
HURT stats (rel)   min: <.01% max: 0.16% x̄: 0.08% x̃: 0.08%
95% mean confidence interval for cycles value: -29.14 6.69
95% mean confidence interval for cycles %-change: -0.93% 0.08%
Inconclusive result (value mean confidence interval includes 0).

LOST:   0
GAINED: 2

Sandy Bridge
total instructions in shared programs: 10545655 -> 10545465 (<.01%)
instructions in affected programs: 37198 -> 37008 (-0.51%)
helped: 42
HURT: 0
helped stats (abs) min: 1 max: 8 x̄: 4.52 x̃: 4
helped stats (rel) min: 0.31% max: 2.15% x̄: 0.58% x̃: 0.49%
95% mean confidence interval for instructions value: -5.14 -3.91
95% mean confidence interval for instructions %-change: -0.68% -0.47%
Instructions are helped.

total cycles in shared programs: 146113059 -> 146112427 (<.01%)
cycles in affected programs: 423514 -> 422882 (-0.15%)
helped: 32
HURT: 10
helped stats (abs) min: 4 max: 162 x̄: 24.34 x̃: 12
helped stats (rel) min: 0.06% max: 2.74% x̄: 0.37% x̃: 0.11%
HURT stats (abs)   min: 12 max: 19 x̄: 14.70 x̃: 14
HURT stats (rel)   min: 0.10% max: 0.18% x̄: 0.16% x̃: 0.14%
95% mean confidence interval for cycles value: -26.03 -4.07
95% mean confidence interval for cycles %-change: -0.43% -0.05%
Cycles are helped.

Iron Lake
total instructions in shared programs: 7886959 -> 7886925 (<.01%)
instructions in affected programs: 1340 -> 1306 (-2.54%)
helped: 4
HURT: 0
helped stats (abs) min: 2 max: 15 x̄: 8.50 x̃: 8
helped stats (rel) min: 0.63% max: 4.30% x̄: 2.45% x̃: 2.43%
95% mean confidence interval for instructions value: -20.44 3.44
95% mean confidence interval for instructions %-change: -5.78% 0.89%
Inconclusive result (value mean confidence interval includes 0).

total cycles in shared programs: 178116996 -> 178116888 (<.01%)
cycles in affected programs: 6262 -> 6154 (-1.72%)
helped: 2
HURT: 2
helped stats (abs) min: 44 max: 78 x̄: 61.00 x̃: 61
helped stats (rel) min: 3.31% max: 3.94% x̄: 3.62% x̃: 3.62%
HURT stats (abs)   min: 6 max: 8 x̄: 7.00 x̃: 7
HURT stats (rel)   min: 0.34% max: 0.68% x̄: 0.51% x̃: 0.51%
95% mean confidence interval for cycles value: -93.27 39.27
95% mean confidence interval for cycles %-change: -5.38% 2.27%
Inconclusive result (value mean confidence interval includes 0).

GM45
total instructions in shared programs: 4857887 -> 4857870 (<.01%)
instructions in affected programs: 674 -> 657 (-2.52%)
helped: 2
HURT: 0

total cycles in shared programs: 122180816 -> 122180744 (<.01%)
cycles in affected programs: 3764 -> 3692 (-1.91%)
helped: 1
HURT: 1
helped stats (abs) min: 78 max: 78 x̄: 78.00 x̃: 78
helped stats (rel) min: 3.94% max: 3.94% x̄: 3.94% x̃: 3.94%
HURT stats (abs)   min: 6 max: 6 x̄: 6.00 x̃: 6
HURT stats (rel)   min: 0.34% max: 0.34% x̄: 0.34% x̃: 0.34%

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Elie Tournier <elie.tournier@collabora.com>
2018-01-30 15:40:14 -08:00
Ian Romanick
cfc0d34802 nir: See through an fneg to apply existing optimizations
Doing the same for the existing feq and fne transformations didn't help
anything in shader-db.

shader-db results:

Broadwell and Skylake (Skylake shown)
total instructions in shared programs: 14529463 -> 14526147 (-0.02%)
instructions in affected programs: 402420 -> 399104 (-0.82%)
helped: 2136
HURT: 131
helped stats (abs) min: 1 max: 10 x̄: 1.61 x̃: 1
helped stats (rel) min: 0.03% max: 16.22% x̄: 3.14% x̃: 1.12%
HURT stats (abs)   min: 1 max: 2 x̄: 1.01 x̃: 1
HURT stats (rel)   min: 0.13% max: 7.69% x̄: 0.75% x̃: 0.57%
95% mean confidence interval for instructions value: -1.51 -1.41
95% mean confidence interval for instructions %-change: -3.06% -2.78%
Instructions are helped.

total cycles in shared programs: 533146915 -> 533120531 (<.01%)
cycles in affected programs: 10356261 -> 10329877 (-0.25%)
helped: 1933
HURT: 844
helped stats (abs) min: 1 max: 490 x̄: 29.44 x̃: 16
helped stats (rel) min: <.01% max: 28.57% x̄: 3.43% x̃: 1.88%
HURT stats (abs)   min: 1 max: 423 x̄: 36.17 x̃: 12
HURT stats (rel)   min: <.01% max: 23.75% x̄: 1.90% x̃: 0.59%
95% mean confidence interval for cycles value: -11.78 -7.22
95% mean confidence interval for cycles %-change: -1.98% -1.65%
Cycles are helped.

Haswell
total instructions in shared programs: 9037416 -> 9034106 (-0.04%)
instructions in affected programs: 389831 -> 386521 (-0.85%)
helped: 2184
HURT: 120
helped stats (abs) min: 1 max: 11 x̄: 1.57 x̃: 1
helped stats (rel) min: 0.03% max: 25.00% x̄: 2.73% x̃: 1.02%
HURT stats (abs)   min: 1 max: 1 x̄: 1.00 x̃: 1
HURT stats (rel)   min: 0.19% max: 7.69% x̄: 0.81% x̃: 0.57%
95% mean confidence interval for instructions value: -1.49 -1.39
95% mean confidence interval for instructions %-change: -2.68% -2.41%
Instructions are helped.

total cycles in shared programs: 84636243 -> 84631628 (<.01%)
cycles in affected programs: 4745058 -> 4740443 (-0.10%)
helped: 1904
HURT: 960
helped stats (abs) min: 1 max: 466 x̄: 30.21 x̃: 18
helped stats (rel) min: 0.02% max: 36.36% x̄: 3.57% x̃: 2.38%
HURT stats (abs)   min: 1 max: 1080 x̄: 55.11 x̃: 14
HURT stats (rel)   min: 0.02% max: 51.33% x̄: 2.77% x̃: 0.81%
95% mean confidence interval for cycles value: -4.51 1.29
95% mean confidence interval for cycles %-change: -1.64% -1.25%
Inconclusive result (value mean confidence interval includes 0).

LOST:   1
GAINED: 0

Sandy Bridge and Ivy Bridge (Ivy Bridge shown)
total instructions in shared programs: 10018873 -> 10015456 (-0.03%)
instructions in affected programs: 512820 -> 509403 (-0.67%)
helped: 2268
HURT: 162
helped stats (abs) min: 1 max: 11 x̄: 1.62 x̃: 1
helped stats (rel) min: 0.03% max: 25.00% x̄: 2.47% x̃: 0.88%
HURT stats (abs)   min: 1 max: 4 x̄: 1.59 x̃: 1
HURT stats (rel)   min: 0.09% max: 7.69% x̄: 0.86% x̃: 0.50%
95% mean confidence interval for instructions value: -1.46 -1.35
95% mean confidence interval for instructions %-change: -2.38% -2.12%
Instructions are helped.

total cycles in shared programs: 87538223 -> 87524771 (-0.02%)
cycles in affected programs: 5435520 -> 5422068 (-0.25%)
helped: 1916
HURT: 946
helped stats (abs) min: 1 max: 1392 x̄: 29.44 x̃: 18
helped stats (rel) min: <.01% max: 34.51% x̄: 3.34% x̃: 1.97%
HURT stats (abs)   min: 1 max: 633 x̄: 45.41 x̃: 11
HURT stats (rel)   min: 0.02% max: 25.95% x̄: 2.41% x̃: 0.62%
95% mean confidence interval for cycles value: -7.34 -2.06
95% mean confidence interval for cycles %-change: -1.62% -1.26%
Cycles are helped.

LOST:   1
GAINED: 0

Iron Lake
total instructions in shared programs: 7888446 -> 7886959 (-0.02%)
instructions in affected programs: 331581 -> 330094 (-0.45%)
helped: 1160
HURT: 97
helped stats (abs) min: 1 max: 10 x̄: 1.37 x̃: 1
helped stats (rel) min: 0.02% max: 9.68% x̄: 0.93% x̃: 0.43%
HURT stats (abs)   min: 1 max: 1 x̄: 1.00 x̃: 1
HURT stats (rel)   min: 0.17% max: 4.17% x̄: 0.37% x̃: 0.25%
95% mean confidence interval for instructions value: -1.25 -1.12
95% mean confidence interval for instructions %-change: -0.91% -0.75%
Instructions are helped.

total cycles in shared programs: 178130766 -> 178116996 (<.01%)
cycles in affected programs: 12534564 -> 12520794 (-0.11%)
helped: 1856
HURT: 187
helped stats (abs) min: 2 max: 202 x̄: 7.78 x̃: 4
helped stats (rel) min: <.01% max: 6.47% x̄: 0.28% x̃: 0.11%
HURT stats (abs)   min: 2 max: 26 x̄: 3.55 x̃: 2
HURT stats (rel)   min: 0.01% max: 2.14% x̄: 0.08% x̃: 0.02%
95% mean confidence interval for cycles value: -7.41 -6.07
95% mean confidence interval for cycles %-change: -0.28% -0.22%
Cycles are helped.

GM45
total instructions in shared programs: 4858912 -> 4857887 (-0.02%)
instructions in affected programs: 237565 -> 236540 (-0.43%)
helped: 867
HURT: 57
helped stats (abs) min: 1 max: 10 x̄: 1.25 x̃: 1
helped stats (rel) min: 0.02% max: 9.38% x̄: 0.87% x̃: 0.43%
HURT stats (abs)   min: 1 max: 1 x̄: 1.00 x̃: 1
HURT stats (rel)   min: 0.16% max: 3.85% x̄: 0.34% x̃: 0.22%
95% mean confidence interval for instructions value: -1.18 -1.04
95% mean confidence interval for instructions %-change: -0.88% -0.71%
Instructions are helped.

total cycles in shared programs: 122189118 -> 122180816 (<.01%)
cycles in affected programs: 8776418 -> 8768116 (-0.09%)
helped: 1213
HURT: 166
helped stats (abs) min: 2 max: 202 x̄: 7.30 x̃: 4
helped stats (rel) min: <.01% max: 6.43% x̄: 0.25% x̃: 0.11%
HURT stats (abs)   min: 2 max: 26 x̄: 3.35 x̃: 2
HURT stats (rel)   min: 0.01% max: 2.14% x̄: 0.06% x̃: 0.02%
95% mean confidence interval for cycles value: -6.78 -5.26
95% mean confidence interval for cycles %-change: -0.24% -0.18%
Cycles are helped.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Elie Tournier <elie.tournier@collabora.com>
2018-01-30 15:40:14 -08:00