Commit Graph

389 Commits

Author SHA1 Message Date
Ben Clayton 6c4effe654 writer/spirv: Fix [[override]] for zero-init defaults
These expressions were not emitted as spec-ops, failing new CTS tests.

Change-Id: I56e8f56a22de2b8dac9a8bd7a2d694d8d81dca35
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/67480
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Reviewed-by: James Price <jrprice@google.com>
2021-10-26 10:05:02 +00:00
James Price 91689fb6f0 Add support for matrix construction from scalars
Use a transform to convert these to the vector form for the MSL and
SPIR-V backends.

MSL only has the scalar form from version 2.0 onwards.

Fixed: tint:1123
Change-Id: I384abd9872d9eae52a10a37cbd6aa96004692e9c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/67360
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-10-25 19:20:31 +00:00
Ben Clayton c73b57f2c6 Address late review comments from 67064
Use spec-spelling of 'constructible'.
Add missing test file to 'test/BUILD.gn'

See https://dawn-review.googlesource.com/c/tint/+/67064

Change-Id: Ie39773617fd0a363d63cc6449bf3905c9eb6786d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/67380
Auto-Submit: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-10-25 14:26:55 +00:00
Ben Clayton 33c13c6e28 writer/hlsl: Do not emit `(void) call_expr;`
Just emit `call_expr;` instead.

Fixed: tint:1259
Change-Id: I84a2976d82f891e9263f3e11e5774fcb01ea09bd
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/67381
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-10-25 11:00:44 +00:00
Ben Clayton 7b776f18b0 Deprecate Ignore()
It's been removed from the spec:
https://github.com/gpuweb/gpuweb/pull/2127

Fixed: tint:1213
Change-Id: I163fe807765bb1ac0580b398f4897daea555216a
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/67067
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-10-22 06:23:12 +00:00
Ben Clayton c2fa68e551 Migrate more tests from Ignore() to phony-assignment
The `Ignore()` intrinsic is about to be deprecated, so don't use it for testing.

Bug: tint:1213
Change-Id: I314ecaeb9a9c337c7b6980189054120a74807ebd
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/67066
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-10-22 00:21:44 +00:00
James Price a41694e9a3 validation: Allow interpolate(flat) on integral IO
Produce a warning if the attribute is missing for integral vertex
outputs or fragment inputs. This will become an error in the future,
as per the WGSL spec.

Add the attribute to E2E tests.

Bug: tint:1224
Change-Id: Ia1f353f36cb7db516cf9e8b4877423dec3b3e711
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/67160
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2021-10-21 23:08:44 +00:00
Ben Clayton 1aa98e62c0 Implement phony assignment
Bug: tint:1213
Change-Id: Ib1ebc4947405c4ada7a9bdbc6bd5a36447bbd234
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/67064
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-10-21 23:04:44 +00:00
Ben Clayton f164a4a723 ast: Add TraverseExpressions()
An ast::Expression traversal helper extracted from Resolver.

Change-Id: I88754cbc86cc12cbf8348fb36a3f038904017f3d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/67202
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2021-10-21 20:38:54 +00:00
Ben Clayton 8fca34546b ast: Add PhonyExpression
Represents the `_` in a phony assignment `_ = <expr>`

Bug: tint:1213
Change-Id: Ifb070277b7872aa5ae405e467e28191e625c4c5a
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/67062
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-10-21 18:33:14 +00:00
Ben Clayton 8cab28c9f9 intrinsics: Add scalar overload of all() & any()
Fixed: tint:1253
Change-Id: I0bdc865a9df9e0171c09daa9918b25bba033ba3b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/67061
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
2021-10-21 09:39:13 +00:00
Ben Clayton 7103f51603 writer/msl: Fix swizzling on packed vectors
Metal 1.x does not support swizzling on packed_vec types.
Use array-index for single element selection (permitted on LHS and RHS of assignment)
Cast the packed_vec to a vec for multiple element swizzles (not permitted as the LHS of an assignment).

Fixed: tint:1249
Change-Id: I70cbb0c22a935b06b3905d24484bdc2edfb95fc2
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/67060
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-10-20 16:12:33 +00:00
Ben Clayton 262210f12b utils: Add ReplaceAll() string helper
Helpful for template string substitutions in tests, to reduce string concat noise.

Change-Id: I612084e2c267d93d79c92cf3ac0231b6b904f0e3
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/66440
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-10-14 20:24:50 +00:00
Ben Clayton f3f2d0a218 Resolver: Remove texture_storage read access
The intrinsics that did anything useful with this were deprecated
several releases ago.

Change-Id: I79e3c901b6a78583853a067ec46cfa98e346517c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/66262
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-10-14 10:10:45 +00:00
Ben Clayton 2aa6855914 intrinsics: Remove deprecated modf & frexp overloads
These have been deprecated for multiple chrome releases.

Change-Id: I4cc05a74ff8f085e6d13f93aefb93077480e52f5
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/66261
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-10-12 21:57:47 +00:00
Stephen White a9f8c7db81 Implement GLSL writer backend.
This is a modified version of the HLSL writer.
Basic types, arrays, entry points, reserved keywords, uniforms,
builtin uniforms, structs, some builtin functions, zero initialization
are implemented. Textures, SSBOs and storage textures in particular are
unimplemented. All the unit tests "pass", but the output is not correct
in many cases.

triangle.wgsl outputs correct vertex and fragment shaders that pass
GLSL validation via glslang. compute_boids.wgsl outputs a valid but not
correct compute shader.

Change-Id: I96c7aaf60cf2d4237e45d732e5f51b345aea0552
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/57780
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-10-06 18:55:10 +00:00
Ben Clayton 5e35864c1b writer/spirv: Fix abs() on unsigned integers
GLSLstd450SAbs expects a *signed* integer.
abs() of an unsigned number is now a no-op.

Fixes WebGPU CTS tests:
webgpu:shader,execution,robust_access_vertex:vertex_buffer_access:*

Bug: tint:1194
Change-Id: I65c5e9f2f03aac0b788b9ba88c383cbec136d7c6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/65620
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Kokoro: Ben Clayton <bclayton@chromium.org>
Reviewed-by: David Neto <dneto@google.com>
2021-10-01 08:41:55 +00:00
James Price 1ca6fbad8f msl: Use a struct for threadgroup memory arguments
MSL has a limit on the number of threadgroup memory arguments, so use
a struct to support an arbitrary number of workgroup variables.

This commit introduces a `State` object to this transform, which is
used to track which structs have been cloned eagerly, in order to
avoid duplicating them.

Bug: tint:938
Change-Id: Ia467db186e176a08f160455eab5fd3b3662f56b8
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/65360
Auto-Submit: James Price <jrprice@google.com>
Kokoro: James Price <jrprice@google.com>
Commit-Queue: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-09-29 18:56:17 +00:00
Ben Clayton 9c7cd9e9c3 transform: Avoid symbol collision in Canonicalize IO
Correctly rename fields when combining two or more input structures together into a single input structure.

Bug: chromium:1251009
Change-Id: I0c7ab5ed3116b97035e100d1ef96e772e819f640
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/64545
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-09-27 21:40:33 +00:00
David Neto 231b50baab Add more SPIR-V reader unit test samples
Catch up to include all tests emitted by tint_unittests --dump-spirv

Change-Id: Ia4d5f75782bcc62f8cfeb0615a942e95e563289d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/65041
Auto-Submit: David Neto <dneto@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-09-27 20:55:53 +00:00
David Neto e6f5730aef Add OpImageSampeProj* unit tests to end-to-end list
Fixed: tint:1143
Change-Id: Ib812b9c1c55e48ee78280c32b465afca1b707b82
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/65040
Auto-Submit: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-09-27 19:21:43 +00:00
Corentin Wallez 40ef4a8269 Revert "msl: Use a struct for threadgroup memory arguments"
This reverts commit af8cd3b7f5.

Reason for revert: breaking roll into Dawn.

Original change's description:
> msl: Use a struct for threadgroup memory arguments
>
> MSL has a limit on the number of threadgroup memory arguments, so use
> a struct to support an arbitrary number of workgroup variables.
>
> Bug: tint:938
> Change-Id: I40e4a8d99bc4ae074010479a56e13e2e0acdded3
> Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/64380
> Kokoro: Kokoro <noreply+kokoro@google.com>
> Auto-Submit: James Price <jrprice@google.com>
> Reviewed-by: Ben Clayton <bclayton@google.com>
> Commit-Queue: James Price <jrprice@google.com>

TBR=bclayton@google.com,jrprice@google.com,noreply+kokoro@google.com,tint-scoped@luci-project-accounts.iam.gserviceaccount.com

Change-Id: I58a07c4ab7e92bda205e2bbbab41e0b347aeb1e8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: tint:938
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/65162
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Kokoro: Corentin Wallez <cwallez@chromium.org>
2021-09-27 19:00:15 +00:00
James Price af8cd3b7f5 msl: Use a struct for threadgroup memory arguments
MSL has a limit on the number of threadgroup memory arguments, so use
a struct to support an arbitrary number of workgroup variables.

Bug: tint:938
Change-Id: I40e4a8d99bc4ae074010479a56e13e2e0acdded3
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/64380
Kokoro: Kokoro <noreply+kokoro@google.com>
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
2021-09-27 15:06:13 +00:00
David Neto ddc9eb2b85 wgsl-reader: reject identifiers starting with underscrore
Update one test to avoid this error.

Fixed: tint:1179
Change-Id: Id41b0eb0f404648de4e86a835fe43f1729cb4696
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/64464
Auto-Submit: David Neto <dneto@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: David Neto <dneto@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-09-20 14:38:45 +00:00
Antonio Maiorano dad26395d8 spirv backend: do not generate a load for ignored expressions
Fixes spirv-val failing on loads of dynamic arrays.

Bug: chromium:1249602
Change-Id: Ic15af9f9ef2beb45bc732e4e45f023651544a1c7
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/64400
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2021-09-16 13:32:57 +00:00
James Price acaecab29d msl: Handle workgroup matrix allocations
Use a threadgroup memory argument for any workgroup variable that
contains a matrix.

The generator now provides a list of threadgroup memory arguments for
each entry point, so that the runtime knows how many bytes to allocate
for each argument.

Bug: tint:938
Change-Id: Ia4af33cd6a44c4f74258793443eb737c2931f5eb
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/64042
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
2021-09-13 19:56:01 +00:00
James Price 922fce7295 Implement and test num_workgroups for all backends
For HLSL, use the new NumWorkgroupsFromUniform transform, and expose
the binding point to use for the generated uniform as a backend
option.

The MSL mapping is trivial, and it was already implemented for WGSL
and SPIR-V.

Bug: tint:752
Change-Id: I4bd37b5d26181629d72b152fe064a60caf8ecdc5
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63962
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-09-13 17:11:58 +00:00
James Price 77a25c060f transform: Add NumWorkgroupsFromUniform transform
This transform scans entry points for struct parameters that contain
the num_workgroups builtin, and replace accesses to these members with
a value loaded from a uniform buffer.

This will be used by the HLSL backend to implement the num_workgroups
builtin.

Bug: tint:752
Change-Id: Iefab3b14af8a08a6135348fded368a06d932e915
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63961
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-09-13 17:11:58 +00:00
James Price ebab7d2f7a spirv: Remove the sanitizer transform
Invoke the required transforms directly in the SPIR-V backend.

Change-Id: I78dc667d5c4c9c1d4da13ef5a99ece831c103982
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63801
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-09-09 14:40:07 +00:00
James Price 5b3be6a64a hlsl: Remove the sanitizer transform
Invoke the required transforms directly in the HLSL backend.

Change-Id: I9465fef375dd4dad6a91c1e7e16ede6401b9bfc0
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63800
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-09-09 14:40:07 +00:00
James Price 733addc20f msl: Remove the sanitizer transform
Invoke the required transforms directly in the MSL backend.

Change-Id: Id8026b1a64415fbe363f8f8a5790e8216cd12c68
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63620
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
2021-09-08 19:57:47 +00:00
Ben Clayton b7bcbf0d20 Resolver: Traverse expressions without recursion
This CL changes the way that the resolver traverses expressions to avoid stack overflows for deeply nested expressions.

Instead of having the expression resolver methods call back into
Expression(), add a TraverseExpressions() method that collects all the
expression nodes with a simple DFS.

This currently only changes the way that Expressions are traversed. We
may need to do the same for statements.

Bug: chromium:1246375
Change-Id: Ie81905da1b790b6dd1df9f1ac42e06593d397c21
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63700
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2021-09-08 15:18:36 +00:00
James Price 3646400342 transform: Add ModuleScopeVarToEntryPointParam
This is the HandleModuleScopeVars() part of the MSL sanitizer moved
verbatim to a standalone transform. The transform code is unchanged,
but some expected test outputs are different as this is now tested in
isolation instead of along with the rest of the sanitizer transforms.

This is step towards removing the sanitizers completely.

Change-Id: I7be826e2119451fc2ce2891740cc94f978e7d5a1
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63583
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-09-07 18:59:21 +00:00
James Price b584b374a1 transform: Add transform to add empty entry point
Use this from the HLSL and SPIR-V sanitizers, instead of duplicating
this logic for them.

This is step towards removing the sanitizers completely.

Change-Id: Ifa9f23d84fd3505d30a928c260181a699c5f1783
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63582
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-09-07 18:59:21 +00:00
James Price c77214d52d Move array accessor tests to their own file
No new tests or any changes, just moving to a separate file in
preparation for adding lots more of these tests soon.

Change-Id: Iaa7eef52384e702c395a6db312fef19e22507644
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63580
Kokoro: Kokoro <noreply+kokoro@google.com>
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: James Price <jrprice@google.com>
2021-09-07 14:48:24 +00:00
James Price 4cc4315d6c Allow array size to be a module-scope constant
Change ast::Array to use an ast::Expression for its `size` field. The
WGSL frontend now parses the array size as an `primary_expression`,
and the Resolver is responsible for validating the expression is a
signed or unsigned integer, and either a literal or a non-overridable
module-scope constant.

The Resolver evaluates the constant value of the size expression, and
so the resolved sem::Array type still has a constant size as before.

Fixed: tint:1068
Fixed: tint:1117

Change-Id: Icfa141482ea1e47ea8c21a25e9eb48221f176e9a
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63061
Auto-Submit: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-09-02 13:49:59 +00:00
Ben Clayton 9021eb5594 resolver: Allow parameters to shadow globals
In https://dawn-review.googlesource.com/c/tint/+/62444 the Resolver validated that there are no parameters of the same function with the same name, but this also introduced validation that errors if parameters shadow a module-scope variable.

The WGSL spec allows for shadowing, but Tint so far has not implemented this support.

There are transforms that generate functions that presume parameter <-> module-scope variable shadowing is okay. DecomposeMemoryAccess is one of these.

This fixes those transforms which could generate programs that fail validation.

Bug: chromium:1242330
Fixed: tint:1136
Change-Id: Id6ec59bbdb398b3b2a23312115a7c1dadf433e98
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/62900
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-08-26 15:40:06 +00:00
James Price f9d19719fd Implement atomicSub intrinsic
Polyfill this for HLSL using an atomic add with the operand negated.

Fixed: tint:1130
Change-Id: Ifa32d58973f1b48593ec0f6320f47f4358a5a3a9
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/62760
Auto-Submit: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-08-26 15:26:25 +00:00
James Price 87cce20f67 test: Remove many expected files
For these tests, we only really care that we can successfully consume
them and generate valid output for each backend. Having the expected
files in the tree generates significant churn for any change to how we
generate backend code, which makes it hard to inspect diffs.

Change-Id: Ic98c248081144c0fb1791f1303eaf6d459548e3d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/62720
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
2021-08-24 22:49:42 +00:00
James Price 85d2e448de msl: Overload matrix-vector arithmetic operators
These operators are not defined in the metal namespace when the vector
operands are packed.

Fixed: tint:1121
Change-Id: I2e8f4302e08117ca41bac6c05fb24a70d1215740
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/62480
Kokoro: Kokoro <noreply+kokoro@google.com>
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-08-23 21:45:23 +00:00
James Price 46978033a7 msl: Only emit packed vectors when the width is 3
MSL vectors with other widths already match WGSL's rules for alignment
and size.

Change-Id: I237052372463ea8323eab47c3b4ca90c6d8afcc3
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/62600
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-08-23 21:45:23 +00:00
James Price 8094553c8a msl: Automatically remap binding numbers in exe
Remap all resources into a flat namespace, to allow tests to pass when
multiple resources use the same binding number.

Fixed: tint:959
Change-Id: I58ed07c789e1ea90fc370ceba73b9d8292902549
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/61261
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-08-12 19:47:20 +00:00
Ben Clayton 080fdf2ac0 writer/hlsl: UnwrapRef() on atomic types
Fixed: tint:1113
Change-Id: I9aa255f5b308cc4d53b0ea40407cc398096a502c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/61780
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: James Price <jrprice@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
2021-08-12 18:23:10 +00:00
James Price 13463daa95 test: Add MSL result for test that now passes
The location decoration in the test source was recently changed to fit
in MSL's allowed range.

Change-Id: Ia8ff2cc453f5af3ed084ede42546ef6750bd27a9
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/61260
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-08-12 18:18:41 +00:00
James Price 34f7eedf74 test: Update expected test output
This new test was added around the same time as the entry point IO
rework, so the (now incorrect) test output made it past the bots.

Change-Id: I89fc4041b9cd00cd363ba61d07371554263eca96
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/61460
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
2021-08-10 16:16:55 +00:00
Ben Clayton 1a1c42ef12 reader/spirv: Partially handle MatrixStride on matrix arrays
SPIR-V spec states:
> Each structure-type member that is a matrix or array-of-matrices must have be decorated with a MatrixStride Decoration

As already pointed out in https://dawn-review.googlesource.com/c/tint/+/59840, we were not handling arrays-of-matrices.
To do this correctly, we need the ast::StrideDecoration to be placed on the Matrix type, which is a much bigger change to support.
For now, chase the type, and error if we have a custom MatrixStride on an array of matrices, otherwise drop the decoration.

Bug: tint:1049
Fixed: tint:1088
Change-Id: Idcb75b3df88040836a03a14e0ca402ebee7be9a7
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60923
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: David Neto <dneto@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
2021-08-06 19:48:32 +00:00
James Price 11c6fcdb51 spirv: Use generic transform to process shader IO
The refactored CanonicalizeEntryPointIO transform makes it much easier
to handle SPIR-V style IO as well, and doing this removes a lot of
duplicated code. Remove all of the SPIR-V transform code for shader IO
and vertex point size.

Bug: tint:920
Change-Id: Id1b97517619b4d2fd09b45d5aee848259f3dfa77
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60840
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-08-05 17:34:19 +00:00
James Price a5d73ce965 transform/shader_io: Generate a wrapper function
This is a major reworking of this transform. The old transform code
was getting unwieldy, with part of the complication coming from the
handling of multiple return statements. By generating a wrapper
function instead, we can avoid a lot of this complexity.

The original entry point function is stripped of all shader IO
attributes (as well as `stage` and `workgroup_size`), but the body is
left unmodified. A new entry point wrapper function is introduced
which calls the original function, packing/unpacking the shader inputs
as necessary, and propagates the result to the corresponding shader
outputs.

The new code has been refactored to use a state object with the
different parts of the transform split into separate functions, which
makes it much more manageable.

Fixed: tint:1076
Bug: tint:920
Change-Id: I3490a0ea7a3509a4e198ce730e476516649d8d96
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60521
Auto-Submit: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-08-04 22:15:28 +00:00
Ben Clayton 3e92e9f8ba Fix structure builtin emission
Fix the Renamer to preserve builtin structure member names.
Fix the HLSL writer to emit the modf / frexp result type even if there is no private / function storage usage of the types.

Fixed: chromium:1236161
Change-Id: I93b9d92980682f9a9cb090d07b04e4c3f6a2f705
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60922
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-08-04 22:03:28 +00:00
James Price 5c61d6d12c msl: Fold &* when converting module-scope vars
This transform was previously converting this code:
```
var<private> v : f32;
fn foo() {
  bar(&v);
}
```

into this:
```
fn foo(vp : ptr<private, f32>) {
  bar(&*vp); // Invalid, since ptr args must be &ident
}
```

Fixed: tint:1086
Change-Id: Ic9efafa219c89a11a4d6e1d11fc69b3c0b9a5464
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60520
Kokoro: Kokoro <noreply+kokoro@google.com>
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-08-04 19:18:38 +00:00