Commit graph

103421 commits

Author SHA1 Message Date
Bas Nieuwenhuizen
2a10fd902d radv: Do not hardcode fast clear formats.
except for the odd one out.

This should support many more formats.

Reviewed-by: Dave Airlie <airlied@redhat.com>
2018-06-05 20:53:21 +02:00
Scott D Phillips
6fb22114a0 intel/tools: add intel_sanitize_gpu to EXTRA_DIST
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106778
Fixes: cc41603d6d ("intel/tools: new intel_sanitize_gpu tool")
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2018-06-05 10:32:35 -07:00
Scott D Phillips
08535dd886 util/tests/vma: Fix warning c++11-narrowing
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106801
Fixes: 943fecc569 ("util: Add a randomized test for the virtual memory allocator")
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2018-06-05 10:32:07 -07:00
Scott D Phillips
4b123fb74b util: tests: vma test depends on C++11 support
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106776
Fixes: 943fecc569 ("util: Add a randomized test for the virtual memory allocator")
Tested-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2018-06-05 10:13:14 -07:00
Michel Dänzer
6b8f3724c8 glx: Fix number of property values to read in glXImportContextEXT
We were trying to read twice as many as the X server sent us, which
upset XCB:

[xcb] Too much data requested from _XRead
[xcb] This is most likely caused by a broken X extension library
[xcb] Aborting, sorry about that.
glx-free-context: ../../src/xcb_io.c:732: _XRead: Assertion `!xcb_xlib_too_much_data_requested' failed.

Fixing this takes 3 GLX piglit tests from crash to pass.

Fixes: 0852162950 "glx: Be more tolerant in glXImportContext (v2)"
Reviewed-by: Adam Jackson <ajax@redhat.com>
2018-06-05 18:56:43 +02:00
Eric Engestrom
c765c39ea7 configure: radv depends on mako
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=106784
Fixes: 17201a2eb0 "radv: port to using updated anv
                              entrypoint/extension generator."
Acked-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
2018-06-05 16:32:48 +01:00
Eric Engestrom
5bdc38f356 travis: use correct form for array options
I'd like to eventually drop support for the confusing "an array of
a single empty string is meant to be interpreted as an empty array", so
let's start by not using it anymore.

Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
2018-06-05 16:31:23 +01:00
Lionel Landwerlin
9aedee64ac anv: intel: add softpin flag on imported BOs
Looks like we forgot to update this bit of the driver for softpin.

Fixes: 4affeba1e9 ("anv: Soft-pin everything else")
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2018-06-05 14:18:35 +01:00
Eric Engestrom
66c61797ad autotools: add missing android file to package
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=106779
Fixes: ff904978a1 "gallium/util: Android backtrace support"
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
2018-06-05 10:39:04 +01:00
Eric Engestrom
7c4423cce9 meson: fix platforms check for -D egl=true
Fixes: 0ed6a87a10 "meson: fix platforms=[]"
Reported-by: Christoph Haag <haagch@frickel.club>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
2018-06-05 10:38:57 +01:00
Mathias Fröhlich
1ac4439d62 mesa: Make sure that imm draws are flushed before other draws execute.
The recent patch

    mesa: Remove FLUSH_VERTICES from VAO state changes.

    Pending draw calls on immediate mode or display list calls do
    not depend on changes of the VAO state. So, remove calls to
    FLUSH_VERTICES and flag _NEW_ARRAY as appropriate.

uncovered a problem that non immediate mode draw calls do only
flush outstanding immediate mode draws if FLUSH_UPDATE_CURRENT
is set in ctx->Driver.NeedFlush.
In that case, due to the sequence of _mesa_set_draw_vao commands
we could end up with the VAO from the FLUSH_VERTICES call set
into gl_context::Array._DrawVAO when the array draw is executed.
So the change pulls FLUSH_CURRENT out of _mesa_validate_* calls
into the array draw calls being validated.
The change introduces a new macro FLUSH_FOR_DRAW beside FLUSH_VERTICES
and FLUSH_CURRENT that flushes on changed current attributes as well
as on outstanding immediate mode draw calls. Use FLUSH_FOR_DRAW
in the non immediate mode draw code paths.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Tested-by: Kai Wasserbäch <kai@dev.carbon-project.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106594
Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
2018-06-05 07:05:24 +02:00
gurchetansingh@chromium.org
a7b74a77fa virgl: use bits in caps set v2
Let's add another field to caps v2, that can help report boolean
values.

Suggested-by: Gert Wollny <gert.wollny@collabora.com>
Suggested-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
2018-06-05 14:29:00 +10:00
gurchetansingh@chromium.org
6ce94a50bb virgl: add shader offset alignment to to v2 caps struct
This is the SSBO analogue to fe0647. User supplied data must
be a multiple of GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT.

This fixes 44 GLES31 tests on airlied@'s GLES31 sketch branches with
Nvidia hardware, but this patch standalone can applied to master. The
alignment restriction on Nvidia is 32, hence the default value.

Example tests:
   dEQP-GLES31.functional.ssbo.layout.random.all_shared_buffer.0
   dEQP-GLES31.functional.ssbo.layout.multi_basic_types.single_buffer.std430

v2: Move to a better place in case statement
v3: Rebase

Reviewed-by: Dave Airlie <airlied@redhat.com>
2018-06-05 14:28:49 +10:00
Kenneth Graunke
1c9053d076 i965: Prepare batchbuffer module for softpin support.
If EXEC_OBJECT_PINNED is set, we don't want to emit any relocations.
We simply want to add the BO to the validation list, and possibly mark
it as writeable.  The new brw_use_pinned_bo() interface does just that.

To avoid having to make every caller consider both the relocation and
softpin cases, we make emit_reloc() call brw_use_pinned_bo() when given
a softpinned buffer.

We also can't grow buffers that are softpinned - the mechanism places a
larger BO at the same offset as the original, which requires moving BOs
around in the VMA.  With softpin, we only allocate enough VMA for the
original size of the BO.

v2: Assert that BOs aren't pinned if the kernel says we should move them
    (feedback from Chris Wilson)

Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2018-06-04 18:38:41 -07:00
Kenneth Graunke
01058a5522 i965: Add virtual memory allocator infrastructure to brw_bufmgr.
This introduces a new fast virtual memory allocator integrated with our
BO cache bucketing.  For larger objects, it falls back to the simple
free-list allocator (util_vma).

This puts the allocators in place but doesn't enable softpin yet.

v2:
 (feedback from Chris Wilson)
 - Check (bo->kflags & EXEC_OBJECT_PINNED) instead of a global flag
 - Avoid vma_free(0ull) on the err_free path.
 - Only enable if the kernel says we have full PPGTT support
 - Make bucketing allocators more resistant to failing to grow arrays
 (feedback from Scott Phillips)
 - Don't use node after popping it from the list.
 - Avoid undefined behavior in canonicalization by reusing new helper
 - Comment updates
 (feedback from myself)
 - Avoid __vma_alloc vs. vma_alloc by making a zero_high_bits helper
   to return a non-canonical address with the high bits zeroed.
 - Don't shadow loop variable 'i' when destroying things (ugly; worked)
v3:
 - Replace zero_high_bits with new common gen_48b_address helper.

Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2018-06-04 18:38:41 -07:00
Jason Ekstrand
e99b32d4d6 i965: Disable internal CCS for shadows of multi-sampled windows
If window system supports Y-tiling but not CCS_E, we currently create an
internal CCS for any window system buffers and then resolve right before
handing it off to X or Wayland.  In the case of the single-sampled
shadow of a multi-sampled window system buffer, this is pointless
because the only thing we do with it is use it as a MSAA resolve target
so we do MSAA resolve -> CCS resolve -> hand to the window system.
Instead, just disable CCS for the shadow and then the MSAA resolve will
write uncompressed directly into it.  If the window system supports
CCS_E, we will still use CCS_E, we just won't do internal CCS.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2018-06-04 15:27:29 -07:00
Jason Ekstrand
6ab9fe7673 i965/miptree: Rename a parameter to create_for_dri_image
Instead of having it be a general "is this a winsys image" boolean, make
it more specific to the actual purpose.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2018-06-04 15:27:16 -07:00
Jason Ekstrand
6a9525bf67 intel/eu: Switch to a logical state stack
Instead of the state stack that's based on copying a dummy instruction
around, we start using a logical stack of brw_insn_states.  This uses a
bit less memory and is way less conceptually bogus.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2018-06-04 14:03:03 -07:00
Jason Ekstrand
db9675f5a4 intel/eu: Set flag [sub]register number differently for 3src
Prior to gen8, the flag [sub]register number is in a different spot on
3src instructions than on other instructions.  Starting with Broadwell,
they made it consistent.  This commit fixes bugs that occur when a
conditional modifier gets propagated into a 3src instruction such as a
MAD.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2018-06-04 14:03:03 -07:00
Jason Ekstrand
2d20303e18 intel/eu: Copy fields manually in brw_next_insn
Instead of doing a memcpy, this moves us to start with a blank
instruction (memset to zero) and copy the fields over one at a time.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2018-06-04 14:03:03 -07:00
Jason Ekstrand
381fac2740 intel/eu: Add some brw_get_default_ helpers
This is much cleaner than everything that wants a default value poking
at the bits of p->current directly.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2018-06-04 14:03:03 -07:00
Jose Fonseca
db38c3b4ba trace: Fix parsing of recent traces.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
2018-06-04 21:06:31 +01:00
Jose Fonseca
8652ff7cdf trace: Fix trace_context_transfer_unmap methods.
The emitted buffer_subdata/texture_subdata call didn't match the
respective signatures.

v2: Actually emit buffer_subdata call.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
2018-06-04 21:06:31 +01:00
Nicolai Hähnle
a9a7993441 amd/common: use the dimension-aware image intrinsics on LLVM 7+
Requires LLVM trunk r329166.

Acked-by: Marek Olšák <marek.olsak@amd.com>
2018-06-04 21:34:59 +02:00
Kenneth Graunke
b3ba47c592 i965: Fix batch-last mode to properly swap BOs.
On pre-4.13 kernels, which don't support I915_EXEC_BATCH_FIRST, we move
the validation list entry to the end...but incorrectly left the exec_bo
array alone, causing a mismatch where exec_bos[0] no longer corresponded
with validation_list[0] (and similarly for the last entry).

One example of resulting breakage is that we'd update bo->gtt_offset
based on the wrong buffer.  This wreaked total havoc when trying to use
softpin, and likely caused unnecessary relocations in the normal case.

Fixes: 29ba502a4e (i965: Use I915_EXEC_BATCH_FIRST when available.)
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2018-06-04 09:43:09 -07:00
Samuel Pitoiset
06d3c65098 radv: fix a GPU hang when MRTs are sparse
When the i-th target format is set, all previous target formats
must be non-zero to avoid hangs. In other words, without this
if a fragment shader exports mrt0, mrt2 and mrt3, the GPU hangs
because the target format of mrt1 is zero.

This fixes DXVK GPU hangs with "Seven: The Days Long Gone",
"GTA V" and probably more games.

Cc: "18.0" 18.1" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2018-06-04 14:01:33 +02:00
Bas Nieuwenhuizen
2835b6baf4 radv: Don't pass a TESS_EVAL shader when tesselation is not enabled.
Otherwise on pre-GFX9, if the constant layout allows both TESS_EVAL and
GEOMETRY shaders, but the PIPELINE has only GEOMETRY, it would return the
GEOMETRY shader for the TESS_EVAL shader.

This would cause the flush_constants code to emit the GEOMETRY constants
to the TESS_EVAL registers and then conclude that it did not need to set
the GEOMETRY shader registers.

Fixes: dfff9fb6f8 "radv: Handle GFX9 merged shaders in radv_flush_constants()"
CC: 18.1 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Alex Smith <asmith@feralinteractive.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
2018-06-04 13:46:24 +02:00
Samuel Pitoiset
e3e929f8c3 nir: implement the GLSL equivalent of if simplication in nir_opt_if
This pass turns:

   if (cond) {
   } else {
      do_work();
   }

into:

   if (!cond) {
      do_work();
   } else {
   }

Here's the vkpipeline-db stats (from affected shaders) on Polaris10:

Totals from affected shaders:
SGPRS: 17272 -> 17296 (0.14 %)
VGPRS: 18712 -> 18740 (0.15 %)
Spilled SGPRs: 1179 -> 1142 (-3.14 %)
Code Size: 1503364 -> 1515176 (0.79 %) bytes
Max Waves: 916 -> 911 (-0.55 %)

This pass only affects Serious Sam 2017 (Vulkan) on my side. The
stats are not really good for now. Some shaders look quite dumb
but this will be improved with further NIR passes, like ifs
combination.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2018-06-04 12:41:10 +02:00
Samuel Pitoiset
e44f90eccf nir: make is_comparison() a non-static helper function
Rename and change the prototype for consistency regarding
nir_tex_instr_is_query(). This function will be used in the
following patch.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2018-06-04 12:41:08 +02:00
Dave Airlie
67eccd6aa2 nir: use num_components wrappers in print/validate.
These wrappers were introduces, so start using them.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2018-06-04 05:58:42 +10:00
Juan A. Suarez Romero
bad7332f7c doc: update calendar, add news and link release notes for 18.0.5
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
2018-06-03 10:19:32 +00:00
Juan A. Suarez Romero
41c01d79ee docs: add sha256 checksums for 18.0.5
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
(cherry picked from commit aba161e63a)
2018-06-03 10:12:02 +00:00
Juan A. Suarez Romero
a89cb6711b docs: add release notes for 18.0.5
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
(cherry picked from commit ca0037aaef)
2018-06-03 10:12:00 +00:00
Jose Fonseca
8841c2cda5 scons: Fix MinGW cross compilation with LLVM 5.0.
LLVM 5.0 requires additional Win32 libraries, and MinGW with pthreads.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
2018-06-02 09:58:50 +01:00
Jason Ekstrand
64e619674e anv: Don't even bother processing relocs if we have softpin
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2018-06-01 16:34:26 -07:00
Jason Ekstrand
c7be17c8d3 anv: Refactor reloc handling in execbuf_add_bo
This just separates the reloc list vs. BO set cases and lets us avoid an
allocation if relocs->deps->entries == 0.

Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2018-06-01 16:34:25 -07:00
Jason Ekstrand
7105b7890a anv: Assert that the kernel leaves pinned BO addresses alone
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2018-06-01 16:33:07 -07:00
Scott D Phillips
4affeba1e9 anv: Soft-pin everything else
v2 (Jason Ekstrand):
 - Break up Scott's mega-patch

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2018-06-01 14:27:13 -07:00
Scott D Phillips
f3dbe0419d anv: Soft-pin batch buffers
Co-authored-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2018-06-01 14:27:12 -07:00
Jason Ekstrand
a0b133286a anv/batch_chain: Simplify secondary batch return chaining
Previously, we did this weird thing where we left space and an empty
relocation for use in a hypothetical MI_BATCH_BUFFER_START that would be
added to the secondary later.  Then, when it came time to chain it into
the primary, we would back that out and emit an MI_BATCH_BUFFER_START.
This worked well but it was always a bit hacky, fragile and ugly.  This
commit instead adds a helper for rewriting the MI_BATCH_BUFFER_START at
the end of an anv_batch_bo and we use that helper for both batch bo list
cloning and handling returns from secondaries.  The new helper doesn't
actually modify the batch in any way but instead just adjusts the
relocation as needed.

Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2018-06-01 14:27:12 -07:00
Jason Ekstrand
4f20c665b4 anv/batch_chain: Call batch_bo_finish at the end of end_batch_buffer
The only reason we were calling it in the middle was that one of the
cases for figuring out the secondary command buffer execution type
wanted batch_bo->length which gets set by batch_bo_finish.  It's easy
enough to recalculate and now batch_bo_finish is called in a sensible
location.

Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2018-06-01 14:27:11 -07:00
Jason Ekstrand
e7d0378bd9 anv: Soft-pin client-allocated memory
Now that we've done all that refactoring, addresses are now being
directly written into surface states by ISL and BLORP whenever a BO is
pinned so there's really nothing to do besides enable it.

Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2018-06-01 14:27:11 -07:00
Jason Ekstrand
caf41c78ca anv/allocator: Support softpin in the BO cache
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2018-06-01 14:27:11 -07:00
Jason Ekstrand
b0d50247a7 anv/allocator: Set the BO flags in bo_cache_alloc/import
It's safer to set them there because we have the opportunity to properly
handle combining flags if a BO is imported more than once.

Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2018-06-01 14:27:10 -07:00
Scott D Phillips
27cc68d9e9 anv: For pinned BOs, skip relocations, but track bo usage
References to pinned BOs won't need to be relocated at a later
point, so just write the final value of the reference into the bo
directly.

Add a `set` to the relocation lists for tracking dependencies that
were previously tracked by relocations. When a batch is executed, we
add the referenced pinned BOs to the exec list.

v2: - visit bos from the dependency set in a deterministic order (Jason)
v3: - compar => compare, drat (Jason)
    - Reworded commit message, provided by (Jordan)

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2018-06-01 14:27:10 -07:00
Scott D Phillips
c7db0ed4e9 anv: Use a separate pool for binding tables when soft pinning
Soft pinning lets us satisfy the binding table address
requirements without using both sides of a growing state_pool.

If you do use both sides of a state pool, then you need to read
the state pool's center_bo_offset (with the device mutex held) to
know the final offset of relocations that target the state pool
bo.

By having a separate pool for binding tables that only grows in
the forward direction, the center_bo_offset is always 0 and
relocations don't need an update pass to adjust relocations with
the mutex held.

v2: - don't introduce a separate state flag for separate binding tables (Jason)
    - replace bo and map accessors with a single binding_table_pool accessor (Jason)
v3: - assert bt_block->offset >= 0 for the separate binding table (Jason)

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2018-06-01 14:27:10 -07:00
Scott D Phillips
e662bdb820 anv: Soft-pin state pools
The state_pools reserve virtual address space of the full
BLOCK_POOL_MEMFD_SIZE, but maintain the current behavior of
growing from the middle.

v2: - rename block_pool::offset to block_pool::start_address (Jason)
    - assign state pool start_address statically (Jason)
v3: - remove unnecessary bo_flags tampering for the dynamic pool (Jason)

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2018-06-01 13:49:22 -07:00
Ian Romanick
f00fcfb7a2 nir: Lower !f2b(x) to x == 0.0
Some trivial help now, but it also prevents ~40 regressions caused by
Samuel's "nir: implement the GLSL equivalent of if simplication in
nir_opt_if" patch.

All Gen4+ platforms had similar results. (Skylake shown)
total instructions in shared programs: 14369557 -> 14369555 (<.01%)
instructions in affected programs: 442 -> 440 (-0.45%)
helped: 2
HURT: 0

total cycles in shared programs: 532425772 -> 532425743 (<.01%)
cycles in affected programs: 6086 -> 6057 (-0.48%)
helped: 2
HURT: 0

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
2018-06-01 10:14:53 -07:00
Ian Romanick
619c51722b nir: Add some missing "optimization undo" patterns
d8d18516b0 and 03fb13f646 added some patterns to undo conversions like

   (('ior', ('flt', a, b), ('flt', a, c)), ('flt', a, ('fmax', b, c)))

If further optimization cause some of the operands to either be the same
or be constants, undoing the transformation can lead to further savings.

I don't know why these patterns were not added in those patches.  I did
not check to see which specific patterns actually helped.  I just added
all of them for symmetry.  This prevents some loop unrolling regressions
Plane Shift caused by Samuel's "nir: implement the GLSL equivalent of if
simplication in nir_opt_if" patch.

Skylake and Broadwell had similar results. (Skylake shown)
total instructions in shared programs: 14369768 -> 14369557 (<.01%)
instructions in affected programs: 44076 -> 43865 (-0.48%)
helped: 141
HURT: 0
helped stats (abs) min: 1 max: 5 x̄: 1.50 x̃: 1
helped stats (rel) min: 0.07% max: 1.52% x̄: 0.66% x̃: 0.60%
95% mean confidence interval for instructions value: -1.67 -1.32
95% mean confidence interval for instructions %-change: -0.72% -0.59%
Instructions are helped.

total cycles in shared programs: 532430629 -> 532425772 (<.01%)
cycles in affected programs: 1170832 -> 1165975 (-0.41%)
helped: 101
HURT: 5
helped stats (abs) min: 1 max: 160 x̄: 48.54 x̃: 32
helped stats (rel) min: <.01% max: 8.49% x̄: 2.76% x̃: 2.03%
HURT stats (abs)   min: 2 max: 22 x̄: 9.20 x̃: 4
HURT stats (rel)   min: <.01% max: 0.05% x̄: 0.02% x̃: <.01%
95% mean confidence interval for cycles value: -53.64 -38.00
95% mean confidence interval for cycles %-change: -3.06% -2.20%
Cycles are helped.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
2018-06-01 10:13:16 -07:00
Eric Engestrom
57fbc2ac50 docs/meson: mention how to use array options
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
2018-06-01 17:53:06 +01:00