Commit Graph

106697 Commits

Author SHA1 Message Date
Nicolai Hähnle
300876a9a7 amd/common: scan/reduce across waves of a workgroup
Order-aware scan/reduce can trade-off LDS traffic for external atomics
memory traffic in producer/consumer compute shaders.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2018-12-19 12:01:17 +01:00
Nicolai Hähnle
3963402fd3 amd/common: add ac_build_ifcc
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2018-12-19 12:01:15 +01:00
Nicolai Hähnle
3c77f26ccc amd/common: whitespace fixes
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2018-12-19 12:01:12 +01:00
Nicolai Hähnle
76c5ad1995 amd/sid_tables: add additional python3 compatibility imports
This happened to bite me while doing some experiments.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2018-12-19 12:01:09 +01:00
Nicolai Hähnle
6f0322b16a r600: remove redundant semicolon
Reviewed-By: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2018-12-19 12:00:49 +01:00
Nicolai Hähnle
7230cb8f2b ddebug: always flush when requested, even when hang detection is disabled
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2018-12-19 11:59:18 +01:00
Nicolai Hähnle
539fdc49f1 ddebug: simplify watchdog loop and fix crash in the no-timeout case
The following race condition could occur in the no-timeout case:

  API thread               Gallium thread            Watchdog
  ----------               --------------            --------
  dd_before_draw
  u_threaded_context draw
  dd_after_draw
    add to dctx->records
    signal watchdog
                                                     dump & destroy record
                           execute draw
                           dd_after_draw_async
                             use-after-free!

Alternatively, the same scenario would assert in a debug build when
destroying the record because record->driver_finished has not signaled.

Fix this and simplify the logic at the same time by
- handing the record pointers off to the watchdog thread *before* each
  draw call and
- waiting on the driver_finished fence in the watchdog thread

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2018-12-19 11:59:10 +01:00
Tapani Pälli
3627c9efff anv/android: turn on VK_ANDROID_external_memory_android_hardware_buffer
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-19 09:38:42 +02:00
Tapani Pälli
3dc424a4f4 anv: ignore VkSamplerYcbcrConversion on non-yuv formats
This fulfills a requirement for clients that want to utilize same
code path for images with external formats (VK_FORMAT_UNDEFINED) and
"regular" RGBA images where format is known. This is similar to how
OES_EGL_image_external works.

To support this, we allow color conversion samplers for non-YUV
formats but skip setting up conversion when format does not have
can_ycbcr flag set.

v2: add comment and bundle can_ycbcr to the existing break
    condition (Lionel)

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-19 09:38:41 +02:00
Tapani Pälli
a7b7772cfb anv: support VkSamplerYcbcrConversionInfo in vkCreateImageView
If a conversion struct was passed, then initialize view using
format from the conversion structure.

v2: use vk_format directly from the anv_format struct
v3: added some assertions (Lionel)

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-19 09:38:41 +02:00
Tapani Pälli
bb0721aea4 anv: add VkFormat field as part of anv_format
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-19 09:38:41 +02:00
Tapani Pälli
c070b0e25f anv: support VkExternalFormatANDROID in vkCreateSamplerYcbcrConversion
If external format is used, we store the external format identifier in
conversion to be used later when creating VkImageView.

v2: rebase to b43f955037 changes
v3: added assert, ignore components when creating external
    format conversion (Lionel)

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-19 09:38:41 +02:00
Tapani Pälli
f1654fa7e3 anv/android: support creating images from external format
Since we don't know the exact format at creation time, some initialization
is done only when bound with memory in vkBindImageMemory.

v2: demand dedicated allocation in vkGetImageMemoryRequirements2 if
    image has external format

v3: refactor prepare_ahw_image, support vkBindImageMemory2,
    calculate stride correctly for rgb(x) surfaces, rename as
    'resolve_ahw_image'

v4: rebase to b43f955037 changes
v5: add some assertions to verify input correctness (Lionel)

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-19 09:38:41 +02:00
Tapani Pälli
517103abf1 anv/android: add ahardwarebuffer external memory properties
v2: have separate memory properties for android, set usage
    flags for buffers correctly

v3: code cleanup (Jason)
    + limit maxArrayLayers to 1 for AHardwareBuffer based images

v4: rebase to b43f955037 changes

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-19 09:38:41 +02:00
Tapani Pälli
c79a528d2b anv/android: support import/export of AHardwareBuffer objects
v2: add support for non-image buffers (AHARDWAREBUFFER_FORMAT_BLOB)
v3: properly handle usage bits when creating from image
v4: refactor, code cleanup (Jason)
v5: rebase to b43f955037 changes,
    initialize bo flags as ANV_BO_EXTERNAL (Lionel)
v6: add assert that anv_bo_cache_import succeeds, add comment
    about multi-bo support to clarify current implementation (Lionel)

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-19 09:38:41 +02:00
Tapani Pälli
5c65c60d6c anv: refactor, remove else block in AllocateMemory
This makes it cleaner to introduce more cases where we import memory
from different types of external memory buffers.

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-19 09:38:41 +02:00
Tapani Pälli
884fc90fde anv: add anv_ahw_usage_from_vk_usage helper function
v2: rebase to b43f955037 changes

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-19 09:38:41 +02:00
Tapani Pälli
1e6a44400a anv/android: add GetAndroidHardwareBufferPropertiesANDROID
Use the anv_format address in formats table as implementation-defined
external format identifier for now. When adding YUV format support this
might need to change.

v2: code cleanup (Jason)
v3: set anv_format address as identifier
v4: setup suggestedYcbcrModel and suggested[X|Y]ChromaOffset
    as expected for HAL_PIXEL_FORMAT_NV12_Y_TILED_INTEL
v5: set linear tiling for GPU_DATA_BUFFER usage, add comment
    about multi-bo support to clarify current implementation (Lionel)

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-19 09:38:41 +02:00
Tapani Pälli
aa94e01bfe anv: add from/to helpers with android and vulkan formats
v2: handle R8G8B8X8 as R8G8B8_UNORM (Jason)
v3: add HAL_PIXEL_FORMAT_NV12_Y_TILED_INTEL, we make it define
    for now to avoid direct dependency to minigbm headers

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-19 09:38:41 +02:00
Tapani Pälli
c1f15a0a1a anv: make anv_get_image_format_features public
This will be utilized later by GetAndroidHardwareBufferPropertiesANDROID.

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-19 09:38:41 +02:00
Tapani Pälli
8a469fd335 anv: refactor make_surface to use data from anv_image
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-19 09:38:41 +02:00
Tapani Pälli
2a98e5bbb9 anv: add create_flags as part of anv_image
This will make it possible for next patch to rip
anv_image_create_info out from make_surface function.

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-19 09:38:41 +02:00
Ian Romanick
96c4b135e3 nir/algebraic: Don't put quotes around floating point literals
The quotation marks around 1.0 cause it to be treated as a string
instead of a floating point value.  The generator then treats it as an
arbitrary variable replacement, so any iand involving a ('ineg', ('b2i',
a)) matches.

v2: Remove misleading comment about sized literals (suggested by
Timothy).  Add assertion that the name of a varible is entierly
alphabetic (suggested by Jason).

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Tested-by: Timothy Arceri <tarceri@itsqueeze.com> [v1]
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com> [v1]
Fixes: 6bcd2af086 ("nir/algebraic: Add some optimizations for D3D-style Booleans")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109075
2018-12-18 23:28:31 -08:00
Vinson Lee
0f7ba5758b meson: Fix libsensors detection.
Fixes: 5e71efef44 ("meson: Add lmsensors support")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2018-12-18 19:24:01 -08:00
Vinson Lee
84f39e5971 meson: Fix typo.
Fixes: 6b4c7047d5 ("meson: build gallium nine state_tracker")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2018-12-18 19:14:11 -08:00
Sagar Ghuge
933c44bcc4 nir: Add a new lowering option to lower 3D surfaces from txd to txl.
Tested on gen9.

v2: Rename lower_txd_3d_surafaces flag to lower_txd_3d (Jason Ekstrand)

Signed-off-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2018-12-18 13:44:09 -08:00
Christian Gmeiner
7ea8e54dd6 meson: add etnaviv to the tools option
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2018-12-18 21:50:58 +01:00
Adam Jackson
e36d136102 specs: Bump GLX_MESA_query_renderer to version 9
Note that we have an official GL extension number, pick the appropriate
section of the GLX spec to modify, and add changelog.

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-12-18 15:46:10 -05:00
Adam Jackson
9e8332ebc2 specs: Remove GLX_RENDERER_ID_MESA from GLX_MESA_query_renderer
This has not even had an attempt at implementation. If you asked for
renderer 0 - which, the spec implies, should always work - then
dri2_convert_glx_attribs would fail, we'd silently fall back to creating
an indirect context, and xserver would also not recognize the attribute
and would throw BadValue at you.

The API would be difficult to use in any case, since there's no way to
enumerate how many renderers the screen has. I'd be tempted to add that
by defining:

    glXQueryRendererIntegerMESA(dpy, screen,
                                /* renderer = */ -1,
                                0, &value);

to return the number of renderers, but a new entrypoint might be
cleaner. Still, better to not specify it at all than to lie about it.

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-12-18 15:46:10 -05:00
Adam Jackson
c63c391756 specs: Remove GLES profile interaction text from GLX_MESA_query_renderer
In one place we say, if GLES isn't supported then the profile version
will be 0.0. Then later we say, if the GLES profile extension isn't
supported then GLX_RENDERER_OPENGL_ES_PROFILE_VERSION_MESA is not
mentioned in the spec. A strict reading of the latter would mean that
GLX_RENDERER_OPENGL_ES_PROFILE_VERSION_MESA is not a recognized token,
and the query should instead return False.

The implementation does not check for the GLES profile extensions, and
the additional complexity doesn't seem worth it. Removing the
interaction text makes the spec match the implementation.

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-12-18 15:46:10 -05:00
Eduardo Lima Mitev
5820e63418 freedreno/ir3: Make imageStore use num components from image format
emit_intrinsic_store_image() is always using 4 components when
collecting registers for the value. When image has less than
4 components (e.g, r32f, rg32i, etc) this results in extra mov
instructions.

This patch uses the actual number of components from the image format.

For example, in a shader like:

layout (r32f, binding=0) writeonly uniform imageBuffer u_image;
...
void main(void) {
   ...
   imageStore (u_image, some_offset, vec4(1.0));
   ...
}

instruction count is reduced in at least 3 instructions (note image
format is r32f, 1 component only).

This obviously reduces register pressure as well.

v2: - Added support for image formats from NV_image_format extension
    (Ilia Mirkin).
    - Return 4 components by default instead of asserting. (Rob Clark).

v3: Added more missing formats (Ilia Mirkin).

v4: Added a debug message for unknown image formats (Rob Clark).

Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2018-12-18 21:15:20 +01:00
Jason Ekstrand
5dad1abfdc nir/dead_write_vars: Get modes directly from derefs
Instead of going all the way back to the variable, just look at the
deref.  The modes are guaranteed to be the same by nir_validate whenever
the variable can be found.  This fixes clear_unused_for_modes for
derefs that don't have an accessible variable.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2018-12-18 13:13:28 -06:00
Jason Ekstrand
fa40a58fd9 nir/copy_prop_vars: Get modes directly from derefs
Instead of going all the way back to the variable, just look at the
deref.  The modes are guaranteed to be the same by nir_validate whenever
the variable can be found.  This fixes apply_barrier_for_modes for
derefs that don't have an accessible variable.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2018-12-18 13:13:28 -06:00
Jason Ekstrand
cf7fb39805 nir/lower_wpos_center: Look at derefs for modes
This is instead of looking all the way back to the variable which may
not exist for all derefs.  This makes this code properly ignore casts
with modes other than the mode[s] we care about (where casts aren't
allowed).

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2018-12-18 13:13:28 -06:00
Jason Ekstrand
867fe35a16 nir/lower_io_to_scalar: Look at derefs for modes
This is instead of looking all the way back to the variable which may
not exist for all derefs.  This makes this code properly ignore casts
with modes other than the mode[s] we care about (where casts aren't
allowed).

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2018-12-18 13:13:28 -06:00
Jason Ekstrand
3fe0363dda nir/lower_io_arrays_to_elements: Look at derefs for modes
This is instead of looking all the way back to the variable which may
not exist for all derefs.  This makes this code properly ignore casts
with modes other than the mode[s] we care about (where casts aren't
allowed).

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2018-12-18 13:13:28 -06:00
Jason Ekstrand
8cc0f92492 nir/linking_helpers: Look at derefs for modes
This is instead of looking all the way back to the variable which may
not exist for all derefs.  This makes this code properly ignore casts
with modes other than the mode[s] we care about (where casts aren't
allowed).

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2018-12-18 13:13:28 -06:00
Jason Ekstrand
8410cf66d7 nir/propagate_invariant: Skip unknown vars
If we can't find the variable from the deref, just assume it isn't
invariant and continue on.  This can happen if, for instance, we're
writing to a deref that points into an SSBO.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2018-12-18 13:13:28 -06:00
Ian Romanick
29e4b949b4 Revert "nir/lower_indirect: Bail early if modes == 0"
"There's no point in walking the program if we're never going to
    actually lower anything."

Except we might lower compacted local arrays.  In that case, modes will
be 0, but there is still lowering to be done.

This reverts commit 7f75cf2a94.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109081
Suggested-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Tested-by: Clayton Craft <clayton.a.craft@intel.com>
Cc: Kenneth Graunke <kenneth@whitecape.org>
2018-12-18 10:47:54 -08:00
Lucas Stach
433ca3127a st/dri: replace format conversion functions with single mapping table
Each time I have to touch the buffer import/export functions in the dri
state tracker I get lost in the maze of functions converting between
DRI_IMAGE_FOURCC, DRI_IMAGE_FORMAT, DRI_IMAGE_COMPONENTS and pipe format.

Rip it out and replace by a single table, which defines the correspondence
between the different representations.

Also this now stores all the known representations in the __DRIimageRec,
to avoid the loss of information we currently have when importing a buffer
with a fourcc, which doesn't have a corresponding dri format.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2018-12-18 19:19:45 +01:00
Lucas Stach
67174d40f1 st/dri: allow both render and sampler compatible dma-buf formats
Currently all the EGL APIs are missing a way to specify how an imported
dma-buf is intended to be used. Demanding the format to be both usable
for sampling and rendering artificially restricts the list of formats a
driver is able to import.

Looking at how the Intel driver implements those DRI2 image APIs it
doesn't distinguish between render or sampler compatible formats. So
this patch aligns behavior between Intel and Gallium based drivers.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2018-12-18 19:19:40 +01:00
Lucas Stach
a3e592e839 etnaviv: use surface format directly
There is no need to do the detour over the resource behind the
surface to get the format. Use the surface format directly.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
2018-12-18 19:07:10 +01:00
Dylan Baker
7a90886921 meson: Add toggle for glx-direct
GNU Hurd needs to turn off glx-direct, rather than special case it,
we'll just add a toggle.

CC: 18.3 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
2018-12-18 09:20:53 -08:00
Dylan Baker
8c77f4c76d meson: Add support for gnu hurd
CC: 18.3 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
2018-12-18 09:20:49 -08:00
Dylan Baker
6cf5f25bc5 meson: remove duplicate definition
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
2018-12-18 09:18:12 -08:00
Dylan Baker
e430a034b9 meson: Fix ppc64 little endian detection
Old versions of meson returned ppc64le as the cpu_family for little
endian power8 cpus, versions >=0.48 don't do this, so the check wouldn't
work in that case. This generalizes the check to work for both old and
new versions of meson.

Fixes: 34bbb24ce7
       ("meson: Add support for ppc assembly/optimizations")
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
2018-12-18 09:17:54 -08:00
Jason Ekstrand
3feda3cf35 anv: Bump the patch version to 96
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-18 09:40:46 -06:00
Kenneth Graunke
3c71ba3baa i965: Don't override subslice count to 4 on Gen11.
Gen9-10 have fewer than 4 subslices per slice, so they need this to be
rounded up.  Gen11 isn't documented as needing this hack, and it can
also have more than 4 subslices, so the hack actually can break things.

Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
2018-12-17 14:03:45 -08:00
Ian Romanick
af07141b33 intel/compiler: More peephole_select for pre-Gen6
No shader-db changes on any Gen6+ platform.

All of the shaders with cycles hurt by more than ~2% are from Master of
Orion.  All of the shaders have instructions helped.  It looks like the
pass enables some control flow to be converted to bcsels, then the
scheduler does dumb things.  These are new shaders (just added before
doing this shader-db run), so there's probably some low-hanging fruit.

Iron Lake
total instructions in shared programs: 8214327 -> 8213684 (<.01%)
instructions in affected programs: 84469 -> 83826 (-0.76%)
helped: 114
HURT: 26
helped stats (abs) min: 2 max: 18 x̄: 7.75 x̃: 9
helped stats (rel) min: 0.17% max: 13.73% x̄: 2.52% x̃: 1.05%
HURT stats (abs)   min: 2 max: 20 x̄: 9.23 x̃: 8
HURT stats (rel)   min: 0.70% max: 2.48% x̄: 1.66% x̃: 1.61%
95% mean confidence interval for instructions value: -5.87 -3.32
95% mean confidence interval for instructions %-change: -2.32% -1.17%
Instructions are helped.

total cycles in shared programs: 187736850 -> 187749314 (<.01%)
cycles in affected programs: 506750 -> 519214 (2.46%)
helped: 104
HURT: 36
helped stats (abs) min: 2 max: 72 x̄: 21.96 x̃: 16
helped stats (rel) min: 0.02% max: 6.16% x̄: 0.97% x̃: 0.63%
HURT stats (abs)   min: 4 max: 1402 x̄: 409.67 x̃: 40
HURT stats (rel)   min: 0.33% max: 23.12% x̄: 5.79% x̃: 1.39%
95% mean confidence interval for cycles value: 28.32 149.74
95% mean confidence interval for cycles %-change: -0.07% 1.61%
Inconclusive result (%-change mean confidence interval includes 0).

GM45
total instructions in shared programs: 5044014 -> 5043652 (<.01%)
instructions in affected programs: 46751 -> 46389 (-0.77%)
helped: 63
HURT: 13
helped stats (abs) min: 2 max: 29 x̄: 7.65 x̃: 9
helped stats (rel) min: 0.17% max: 13.73% x̄: 2.93% x̃: 1.04%
HURT stats (abs)   min: 2 max: 20 x̄: 9.23 x̃: 8
HURT stats (rel)   min: 0.66% max: 2.35% x̄: 1.58% x̃: 1.52%
95% mean confidence interval for instructions value: -6.54 -2.99
95% mean confidence interval for instructions %-change: -3.04% -1.28%
Instructions are helped.

total cycles in shared programs: 128143042 -> 128150188 (<.01%)
cycles in affected programs: 324564 -> 331710 (2.20%)
helped: 57
HURT: 19
helped stats (abs) min: 6 max: 74 x̄: 30.70 x̃: 32
helped stats (rel) min: 0.08% max: 4.74% x̄: 1.22% x̃: 0.81%
HURT stats (abs)   min: 10 max: 1400 x̄: 468.21 x̃: 60
HURT stats (rel)   min: 0.56% max: 19.94% x̄: 5.80% x̃: 1.70%
95% mean confidence interval for cycles value: 6.90 181.15
95% mean confidence interval for cycles %-change: -0.52% 1.59%
Inconclusive result (%-change mean confidence interval includes 0).

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-17 13:47:06 -08:00
Ian Romanick
378f996771 nir/opt_peephole_select: Don't peephole_select expensive math instructions
On some GPUs, especially older Intel GPUs, some math instructions are
very expensive.  On those architectures, don't reduce flow control to a
csel if one of the branches contains one of these expensive math
instructions.

This prevents a bunch of cycle count regressions on pre-Gen6 platforms
with a later patch (intel/compiler: More peephole select for pre-Gen6).

v2: Remove stray #if block.  Noticed by Thomas.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Thomas Helland <thomashelland90@gmail.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-12-17 13:47:06 -08:00