Commit Graph

3109 Commits

Author SHA1 Message Date
Ben Clayton 3fbe98e657 Castable: Optimize Switch()
Use a bloom-filter-style early rejection to eliminate whole blocks of
case statements from the switch type checks. Much like IsAnyOf(), the
list of types considered are recursively tested as a whole and
then binary-chopped if there's a potential match, until we test the
individual switch case types.

Bug: tint:1383
Change-Id: I5b30f19ea070e8352bf6b9363f133da906013182
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78544
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
2022-02-04 18:58:33 +00:00
Corentin Wallez b3c99ddfae writer/msl: Output constant 0 lod for 1d texture builtins
The MSL headers have annotations that requires that the lod for 1D
textures is a constexpr with value 0. This affects .get_width() and
.read().

Bug: dawn:814

Change-Id: Ic21d32067061afe67a16fbbeee222ab695b53066
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/79301
Reviewed-by: Ben Clayton <bclayton@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Auto-Submit: Corentin Wallez <cwallez@chromium.org>
2022-02-04 17:55:43 +00:00
Stephen White a924ffe70c GLSL: fix sample_index, sample_mask and bitcasts
In GLSL, gl_SampleID and gl_SampleMask[In] require the
GL_OES_sample_variables extension, so output:

"#extension GL_OES_sample_variables : require"

in the header if those builtins is used.

Note that extensions must be inserted before the default precision
declaration, but helpers must be inserted after it, so we set a flag
and emit extensions, then the precision declaration, then helpers.

Further fixes:
- use gl_SampleMaskIn for input builtins, gl_SampleMask for output,
  necessitating the addition of a storage class to GLSLBuiltinToString()
- fix the handling of gl_SampleMaskIn: it's array<i32> in GLSL, not
  array<u32> as in SPIR-V
- centralize conversions for GLSL builtins used as input variables in
  FromGLSLBuiltin()
- implement bitcasts on assignment to GLSL builtin output variables,
  centralized in ToGLSLBuiltin()
- update the extension handling in the GLSL writer to check for both
  sample_index and sample_mask.
- call UnwrapRef() in GLSL's EmitBitcast(). In the test case, we were
  not recognizing the argument as a uint, yielding float() instead of
  uintBitsToFloat().

Bug: tint:1408, tint:1412, tint:1414

Change-Id: Ie01541eb6e7cdf4e21347341f988bff916346797
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78920
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-02-04 16:41:33 +00:00
Ben Clayton 009d129103 reader/spirv: Decompose arrays with strides
Transform any SPIR-V that has an array with a custom stride:

  @stride(S) array<T, N>

into:

  struct strided_arr {
    @size(S) er : T;
  };
  array<strided_arr, N>

Also remove any @stride decorations that match the default array stride.

Bug: tint:1394
Bug: tint:1381
Change-Id: I8be8f3a76c5335fdb2bc5183388366091dbc7642
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78781
Reviewed-by: David Neto <dneto@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2022-02-04 15:39:34 +00:00
Ben Clayton de857e1c58 Add tint::Switch()
A type dispatch helper with replaces chains of:

  if (auto* a = obj->As<A>()) {
    ...
  } else if (auto* b = obj->As<B>()) {
    ...
  } else {
    ...
  }

with:

  Switch(obj,
    [&](A* a) { ... },
    [&](B* b) { ... },
    [&](Default) { ... });

This new helper provides greater opportunities for optimizations, avoids
scoping issues with if-else blocks, and is slightly cleaner (IMO).

Bug: tint:1383
Change-Id: Ice469a03342ef57cbcf65f69753e4b528ac50137
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78543
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2022-02-04 15:38:23 +00:00
Ben Clayton fa0d64b76d inspector: Implement a custom StageVariable copy constructor
The fields `has_location_decoration` and `location_decoration` are references to `has_location_attribute` and `location_attribute`, respectively, which act as an alias for a field-rename.

The default copy-constructor was copying across the reference (pointer) to the source StageVariable, instead of making a reference to the target's fields. This is causing Bad Things™ to happen in downstream projects.

Credit to dneto@ for identifying the issue, and for making this fix (which I've stolen for this CL).

Change-Id: Id0570e4e389f28980fa5aea29ad63b5100373dc5
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/79200
Reviewed-by: David Neto <dneto@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2022-02-04 08:55:23 +00:00
Stephen White d9b32c3178 GLSL: fix textureLoad() and textureStore(), depth textures, and more.
The CombineSamplers transform was incorrectly flagging StorageTexture
(which in GLSL ends up as image2D) as needing to be combined with a
sampler, or at least renamed. This is incorrect: StorageTexture never
has an associated sampler, so don't try to pair it up and just output
it as image* in GLSL.

In GLSL, textureLoad (aka texelFetch) of depth textures is not allowed.
The fix is to bind the depth texture as the corresponding f32 texture
instead (e.g., texture_depth_2d -> texture_2d<f32>,
texture_depth_cube -> texture_cube<f32>, etc). This requires changing
both the uniform globals and function parameter types. We're now going
to receive a vec4 instead of a float from texelFetch, so add a ".x"
member accessor to retrieve the first component. (Note that we don't
do this inside a CallStatement since this gives the CloneContext
indigestion, and CallStatement is going to ignore the result of the
call anyway.)

We were failing to find the dummy samplers that Dawn creates for the
calls that actually do require a dummy sampler, since the old Inspector
implementation of GetSamplerTextureUses() does not find them. The fix
is to implement a new Inspector call to return the texture/sampler
pairs the Resolver found during resolution. This will include the
dummy sampler as a null variable pointer.

In order to identify the placeholder sampler, we pass in a BindingPair
to represent it. When we discover a null sampler in the variable pair,
we return the passed-in placeholder binding point to the caller (Dawn).
(Dawn will use a group of kMaxBindGroups, to ensure that it never
collides with an existing sampler.)

Bug: tint:1298
Change-Id: I82e142c2b4318608c27a9fa9521c27f15a6214cd
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78820
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-02-03 22:39:13 +00:00
Ryan Harrison 382b2a23c8 Add test-name-filter flag to `get-test-plan`
BUG=tint:1413

Change-Id: I6a4735a97f64003cb4999d6a64b64666d0ce08ad
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/79140
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Auto-Submit: Ryan Harrison <rharrison@chromium.org>
Kokoro: Ryan Harrison <rharrison@chromium.org>
2022-02-03 20:55:03 +00:00
Ryan Harrison 43ad59d3dc Clean up for automatically detected issues
Mostly typos and one case of a return not being error checked.

Change-Id: Id33e93402b05c165aa129bb22e4b0c7f55b0a71b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/79141
Kokoro: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2022-02-03 19:52:22 +00:00
Ben Clayton 148711d275 CONTRIBUTING: Document gerrit quirks
Document how to obtain the commit-msg hook and how to push a change for review.

Change-Id: If39e98e2fc20be549a08c88839b4d96a8ab7935b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78784
Auto-Submit: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: David Neto <dneto@google.com>
2022-02-03 15:31:32 +00:00
Ben Clayton 8250f2b850 resolver: Correctly validate 'break' inside 'continuing'
We haven't been correctly checking the esoteric set of rules around breaks in continuing statements.

Bug: chromium:1288919
Change-Id: Ica6a0e71d06d9b204c359fea5f778db2383e6fa1
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78860
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2022-02-03 00:12:52 +00:00
Ben Clayton b85e692aa7 Rename 'intrinsic' to 'builtin'
This matches the term used in the WGSL spec.

Change-Id: I4603332b828450c126ef806f1064ed54f372013f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78787
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-02-02 23:07:11 +00:00
Ben Clayton a996ffbd1f Rename 'decoration' to 'attribute'
This matches (mostly) the term used in the WGSL spec.

Change-Id: Ie148a1ca8498698e91fdbb60e1aeb0d509b80630
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78786
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-02-02 23:07:11 +00:00
Stephen White d4d7153bad GLSL: fix shadow samplers, and textures generally.
1) Append "Shadow" to samplers representing depth textures.
2) Sampling a depth texture returns f32, not vec4<f32>
3) Sampling a depth texture requires a Dref parameter, so we must
   generate one if none is provided.
4) GLSL requires Dref to be appended to the texture coordinates vector,
   *unless* it's a samplerCubeArrayShadow, since this would require vec5.
   In that case, it's passed as a separate parameter.
5) GLSL's textureGather() with a depth sampler always requires a refZ
   parameter, so provide zero to emulate WGSL's compare-less textureGather().
6) texelFetch() does not support depth textures, so this will have to be
   validated out.
7) textureOffset() does not support sampler2DArrayShadow in GLES, so this will
   have to be validated out.

Bug: tint:1298
Change-Id: Idaebe89cac6c1ec97c50a361b1d3aa3b84fb6c12
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78760
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-02-02 15:25:42 +00:00
Ben Clayton b68e8aa658 Optimize tint::IsAnyOf<>() for many types
Split IsAnyOf() into log(n) stages, where each stage performs a hashcode
check.

Previously there was a single hash test across the bitwise-or of all the
types being considered. If this passed, then each type would be tested
with Is<T>() individually. With this change, the list of types will be
recursively split into two, which each block hash-code checked. This is
repeated until we reach fewer than 4 types to check, where the test
decays to using Is<T>() for each type.

Also renamed `combined_hashcode` to `full_hashcode`, and used the term
CombinedHash for new helpers that bitwise-or the hashes from a number
of types.

Bug: tint:1383
Change-Id: Id056b9f7a9792430bd75ce554cb5fe73221ca4c7
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78580
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Ben Clayton <bclayton@google.com>
2022-02-02 14:38:32 +00:00
Antonio Maiorano e1699caf81 Fix PromoteSideEffectsToDeclTest converting for loop to loop with nested hoisted lets
When converting a for-loop to a loop, we were not cloning the for-loop's
body, but rather the statements within it. This worked fine, except if
we also hoisted a variable to a let within that body, which requires the
body to be cloned for the 'insert before' to work. This change clones
the for-loop body, which fixes the problem, but introduces a block in
the destination AST, which is ugly, but not incorrect.

Bug: tint:1300
Change-Id: I478244d87f8cf58837102004242ba1c835e21710
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78821
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2022-02-02 14:33:32 +00:00
Ben Clayton b80e2f3b6e intrinsics: Remove ignore()
This has been deprecated since M97.

Fixed: tint:1214
Change-Id: I970898f2ae8baf1916e2f8d43230d8b724641730
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78785
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2022-02-01 17:21:52 +00:00
Ben Clayton e1159c7180 diagnostic: Use shared_ptr for owned Source::Files
It's too easy to copy diagnostics around and lose track of Source::File
ownership. Ideally we'd place the shared_ptr on the Source, but Sources
are copied _very_ frequently, and we'd lose a huge amount of
performance. Typically, Source::Files are owned externally. The only
time we really need to hold a shared_ptr to these is when a Source::File
is generated by an ICE, as the File points to the C++ source file that
raised the error.

Bug: chromium:1292829
Bug: tint:1383
Change-Id: I2706de8775bc3366115865b5a94785c0b2fefaae
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78782
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2022-02-01 17:16:01 +00:00
Ben Clayton e3d4197822 tools/perfmon: Don't stop on errors
Don't terminate on first error. Sleep a bit and try again.

Post a message to a gerrit change if it cannot be built. The fact the PS has a message from perfmon will prevent it from retrying the same change.

Remove trailing newlines from log.Printf() messages, they're automatically added.

Bug: tint:1383
Change-Id: I78a627c53c492e7da33a74470d5a064e90a7a753
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78783
Auto-Submit: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2022-02-01 15:28:21 +00:00
Ben Clayton 5416d9ba2a reader/spirv: Always run the cleanup transforms
The SPIR-V cleanup transforms were only being run if the
DecomposeStridedMatrix transform needed to be run - despite
the RemoveUnreachableStatements transform needing to be run, always.

Change-Id: I5dc28a79200ab67c96fb793980412a5632e26026
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78780
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2022-02-01 09:09:12 +00:00
Ben Clayton f67b6373a6 Move src/benchmark to src/bench
The current directory and namespace collides quite spectacularly with
the google benchmark include directory and namespace.
This becomes very hard to work around when there's a .cc file in src/
that wants to include "benchmark/benchmark.h", as MSVC appears to
resolve this to the relative path, while GCC and Clang resolve to the
compiler specified include directory.

Bug: tint:1383
Change-Id: Icc8891718d1d8a1b55c2ac4b2bb1487e8d09e629
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78740
Kokoro: Kokoro <noreply+kokoro@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2022-01-31 19:49:00 +00:00
Corentin Wallez 3e80ae68ee Disable a couple SpvParserCFGTests preventing google3 roll
SPIRV-Tools was updated to fix a typo (preceeded->preceded) and the
string matching of these tests started failing.

Bug: tint:1406
Change-Id: If7affbf2e34e4f8d3e929c38ecdec7e3a624ee19
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78722
Reviewed-by: Ben Clayton <bclayton@google.com>
Auto-Submit: Corentin Wallez <cwallez@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
2022-01-31 13:03:34 +00:00
Stephen White 0b39270e01 GLSL: move entry point handling to CanonicalizeEntryPointIO transform.
Move builtin_to_string() and builtin_type() to
the CanonicalizeEntryPointIO transform. Use the former to
rename entry point IO variables to the gl_ names, and the latter
to cast values to the correct type.

Change-Id: Iddfad574ddd660ff1bfd89a399a001b967b6b67e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78380
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-01-28 22:36:58 +00:00
Ben Clayton f34038b1a0 tools: Fix benchmark tests
The diff format changed.

Change-Id: I13930e0aeb450384d95d71460f9623adb5c1b192
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78581
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Kokoro: Ben Clayton <bclayton@chromium.org>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
2022-01-28 19:21:20 +00:00
Ben Clayton 3fe1bd3715 transform: Fix CalculateArrayLength for arrays
The transform was not correctly inserting the intrinsic call after array element types.

Fixed: chromium:1290107
Change-Id: I7199d1846cb98305d789cf0bc362eb5872d9b917
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78542
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2022-01-28 16:49:46 +00:00
Ben Clayton 98fe545826 fuzzers: Hook up the Program::printer
When TINT_BUILD_WGSL_WRITER is enabled.
This allows printing of the AST for debugging purposes.

Change-Id: I92b5911c16cb1e5fd22e81def00de33e9257f575
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78541
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2022-01-28 16:49:46 +00:00
Ben Clayton c28f5926be transform: Fix `TINT_PRINT_PROGRAM_FOR_EACH_TRANSFORM`
In recent optimizations, this got broken: when enabled the input program was printed over and over again, instead of the current transformed program.

Change-Id: I0c5acaf40a88ac759d0114f85febc052d577a698
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78540
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2022-01-28 16:49:46 +00:00
Ben Clayton df9900c43e Optimize Source by removing a std::string
The `std::string file_path` carried around by every Source was very expensive for heap allocations.
Push this into the Source::File.

Bug: tint:1383
Change-Id: Id9e3bdef1cf24aea5f3c83f348c05f5cf8ef4bbb
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78321
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Ben Clayton <bclayton@google.com>
2022-01-27 17:36:27 +00:00
James Price 792897422d Remove the "image" storage class
This doesn't exist in WGSL, and we don't have a supported path to
implement this in MSL.

This was preventing "image" from being used as an identifier.

Change-Id: I724e46c866a4dd488f45fbc1215ef23a67355a78
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78280
Auto-Submit: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: David Neto <dneto@google.com>
2022-01-27 15:55:16 +00:00
Ben Clayton c126bc95df tools: Add perfmon
A tool to continually automatically generate performance metrics for tint CLs.

perfmon monitors gerrit changes, benchmarks them and posts results to
the gerrit change.

Commit changes are also benchmarked, and results are automatically posted to:
https://tint-perfmon-bot.github.io/tint-perf

Bug: tint:1383
Change-Id: I3470b170046e1d9af456f5e3a1d6ff76c305898a
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/77940
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2022-01-27 14:51:06 +00:00
Ben Clayton 3cdb8e3c3e reader/wgsl: Optimize tokens by using string_view
Each Token was making a copy of the `val_str_`, despite the token being a slice on the original source.

Bug: tint:1383
Change-Id: I17b2da8f986ba105853aa47afe21bcc75f140f8e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78320
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2022-01-27 14:48:46 +00:00
Stephen White e2f35ba8e0 GLSL: clean up GLSL output whitespace generation.
More line() and less std::endl.
More automated indents and less manual spacing.
Put a single newline after every struct and function declaration.

Note that this does touch every test result, but only affects whitespace.

Change-Id: I7506b9029b79b91fb335911dba44369b36f09bbe
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78300
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-01-26 16:48:55 +00:00
Stephen White b1d2b84f7d GLSL: fix clip space mismatch in gl_Position.
OpenGL clips against [-w, w], while WebGPU uses [0, w]. The fix is to
modify gl_Position.z on output to match GLSL semantics. (This is the
same code used by SPIRV-Cross under the fixup_clipspace option.)

Bug: tint:1401
Change-Id: I1b1511352eee11cd9b095cd809aa8e1263c6cf4c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78261
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-01-26 14:45:55 +00:00
Stephen White 520bccf8d8 GLSL: implement builtin kNumWorkgroups.
Bug: tint:1400
Change-Id: I5f2523d41f73abe55e57b8931833124c2ebaf00d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78260
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-01-25 22:47:05 +00:00
Stephen White ca4cfb9d6f GLSL: implement interpolation qualifiers.
Bug: tint:1399 tint:451
Change-Id: Idf02a98d2c51ab4d93847fc24a9d5a447ce3aaa3
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78222
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-01-25 21:39:05 +00:00
Ben Clayton 800b8e3175 optimizations: Implement transform::ShouldRun()
This change adds an override for Transform::ShouldRun() for many of the transforms that can trivially detect whether running would be a no-op or not. Most programs do not require all the transforms to be run, and by skipping those that are not needed, significant performance wins can be had.

This change also removes Transform::Requires() and Program::HasTransformApplied(). This makes little sense now that transforms can be skipped, and the usefulness of this information has been severely reduced since the introduction of transforms that need to be run more than once.
Instread, just document on the transform class what the expectations are.

Issue: tint:1383
Change-Id: I1a6f27cc4ba61ca1475a4ba912c465db619f76c7
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/77121
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2022-01-25 21:36:04 +00:00
Ben Clayton 12d54d746e transform: Make methods const, add ShouldRun()
Transforms are supposed to be immutable, operating on the DataMaps provided for input and output, so make the methods const.

Add a ShouldRun() method which the Manager can use to skip over transforms that do not need to be run.

Change-Id: I320ac964577e94ac988748d8aca85bd43ee8d3b5
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/77120
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2022-01-25 20:53:25 +00:00
Stephen White c8c0e2ea38 GLSL: standardize layout() formatting (whitespace change).
Change-Id: Id0c879c597e02da32350b2ee4878991fe78c470f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78221
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-01-25 20:06:05 +00:00
Stephen White 8e01c45e54 GLSL: add location layout qualifier before in/out variables.
Bug: tint:1398
Change-Id: I89c985d01d539ed166661ee5e858247cde4702b3
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78080
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-01-25 19:44:14 +00:00
Stephen White fc792989e1 GLSL: implement image format qualifiers for storage textures.
Bug: tint:1397
Change-Id: Ifd6870b3e7cba151c361bd21f9d3d42642ff6c26
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78060
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Stephen White <senorblanco@chromium.org>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-01-25 19:20:04 +00:00
Brandon Jones b9d1540b31 Make use of std::string_view when parsing
There may very well be more places it can be used, but this updates
the easiest to identify cases that could be switched over with minimal
restructuring.

Change-Id: I5100f398731cc4e031c82548ac826d713d0a4cda
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/76640
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Brandon Jones <bajones@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-01-25 17:15:37 +00:00
James Price 1c02eb8cb0 validation: Require interpolate(flat) for integers
This was made a warning in M97, and can now become a hard error.

Fixed: tint:1224
Change-Id: Ied72f6e28b3dc64a6ab832e0eac53f62ce045d40
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/77700
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: James Price <jrprice@google.com>
2022-01-25 01:01:39 +00:00
Stephen White d5560400a3 Run all of the backends in the test runner.
Essentially, this adds GLSL to the list of backends to run.

Bug: tint:1358
Change-Id: I5075df32d935a3e08733daadbe5ac9dc1e13f03c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/77220
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-01-25 00:35:20 +00:00
Stephen White 2190481ad9 GLSL: avoid collisions on existing vars for binding 0/0.
Bug: tint:1396
Change-Id: I870c3dd7772b1fdf9bf7adfdb34798a9eb170163
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78020
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-01-24 22:51:49 +00:00
Ben Clayton 6c0df44211 Castable: Optimizations using bloomfilters
Calculate a hashcode for each TypeInfo, use these hashcodes to quickly
eliminate full base class walks for As() and Is(). Use the hashcodes to
optimize IsAnyOf() calls where the result is false.

Benchmarks:

A: base.bench
B: new.bench

Test name                             | Δ (A → B)    | % (A → B)
--------------------------------------+--------------+-----------
ParseWGSL/"particles.wgsl"            | -78.84µs     | -3.2%
GenerateWGSL/"particles.wgsl"         | -11.264µs    | -5.8%
GenerateGLSL/"particles.wgsl"         | -2.610127ms  | -7.2%
GenerateMSL/"simple_compute.wgsl"     | -41.187µs    | -7.2%
GenerateMSL/"particles.wgsl"          | -818.689µs   | -7.2%
GenerateGLSL/"simple_compute.wgsl"    | -48.362µs    | -7.4%
GenerateGLSL/"simple_vertex.wgsl"     | -49.992µs    | -7.7%
GenerateSPIRV/"simple_compute.wgsl"   | -42.869µs    | -7.8%
GenerateSPIRV/"particles.wgsl"        | -835.423µs   | -7.9%
GenerateSPIRV/"simple_fragment.wgsl"  | -33.868µs    | -8.1%
GenerateGLSL/"simple_fragment.wgsl"   | -51.368µs    | -8.2%
GenerateSPIRV/"simple_vertex.wgsl"    | -39.096µs    | -8.3%
GenerateHLSL/"particles.wgsl"         | -1.437747ms  | -8.3%
GenerateMSL/"simple_vertex.wgsl"      | -57.232µs    | -8.5%
GenerateHLSL/"simple_compute.wgsl"    | -85.981µs    | -8.9%
GenerateHLSL/"simple_fragment.wgsl"   | -73.095µs    | -9.2%
GenerateMSL/"simple_fragment.wgsl"    | -61.257µs    | -9.3%
GenerateHLSL/"simple_vertex.wgsl"     | -76.661µs    | -9.4%

Change-Id: Idb03bf871b08274b5b52ef55e41450ed3448a60f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/76960
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Ben Clayton <bclayton@google.com>
2022-01-24 21:07:20 +00:00
Stephen White f9b8b6104d GLSL: implement CombineSamplers transform (string version).
This transform converts all separate texture/sampler references
in a program into combined texture/samplers. This is required for GLSL,
which does not support separate texture/samplers.

As input, the transform requires a map from the unique sampler/texture
pairs previously gathered by the Resolver to strings, which will be
used as the names of the newly-generated combined samplers. Note that
binding points are unused by GLSL, and so are set to (0, 0) with
collision detection disabled.

All function signatures containing textures or samplers are rewritten,
as well as function calls and texture intrinsic calls. For texture
intrinsic calls, a placeholder sampler is used to satisfy the subsequent
Resolver pass (GLSL texture intrinsics do not require a separate sampler,
but WGSL intrinsics do). The placeholder is also used if the shader
contains only texture references (e.g., textureLoad).

Bug: tint:1366

Change-Id: Iff8407d28fdc2a8adac5cb655707a08c8553c389
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/77080
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-01-24 17:17:22 +00:00
Ben Clayton 7e6989bc26 .gitignore: Add thirdparty/benchmark
External dependency added when you `gclient sync`.

Change-Id: I65303a35f8ac33e3864267b742f619eeacb5a454
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/77941
Commit-Queue: Ben Clayton <bclayton@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
Kokoro: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: James Price <jrprice@google.com>
2022-01-24 16:01:31 +00:00
Ben Clayton 4b433dfe07 test-runner: Add test/benchmark to excluded dirs
Don't generate .expected.* files for these benchmarks. We don't want to inspect their generated output.

This was a great recommendation from jrprice here:
https://dawn-review.googlesource.com/c/tint/+/77443/4#message-a91825492f67033c51326022dd1b4a340aa75dd7

Change-Id: I2a8a5f0ac747531228b78675b96173875fb02851
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/77446
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2022-01-24 15:49:40 +00:00
Antonio Maiorano 4183a574b0 PromoteSideEffectsToDecl: add decomposing 'else if's to 'if { else }'
Just as we do with for loops that need decomposing to loops, we must
also decompose 'else if's to 'else { if }' so that we can insert decls
above the condition.

Bug: tint:1300
Change-Id: Ia16f1cf351964817587d353e58a02d9ae6f8386c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/77500
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-01-24 15:18:59 +00:00
Antonio Maiorano 8db439d848 Add PromoteSideEffectsToDecl transform
Fold both PromoteInitializersToConstVar and VarForDynamicIndex into this
new transform, with a config to enable either type of transformation.
This is almost a no-op change, except that VarForDynamicIndex required
ForLoopToLoop, while this tranformation in PromoteInitializersToConstVar
converts for-loops only as needed, so it doesn't do so when the
expression is in the for-loop initializer.

This transform will be extended to handle ensuring order of execution of
expressions.

Bug: tint:1300
Change-Id: I4d00984346a2c92b2d8563b459898f8f737589fd
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/77140
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2022-01-24 15:14:39 +00:00