Commit Graph

431 Commits

Author SHA1 Message Date
James Price 88b8e2f289 writer/spirv: Implement invariant attribute
Bug: tint:772
Change-Id: I94f8e95f7c1206f33dbf4defba2d22d95a5cfb1e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/57643
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-07-12 14:48:20 +00:00
Sarah e28591101c validation: validate struct constructor
Bug: tint:864
Change-Id: I57db071bcda96d45f758bcdbc47c6ef0a4a8192d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/57280
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-07-09 16:32:00 +00:00
Ben Clayton 1b03f0a07a reader/wgsl: Generate ForLoopStatements
Instead of LoopStatements.

Update the writers to handle these.

Fixed: tint:952
Change-Id: Ibef66e133224810efc28c224d910b5e21f71f8d6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/57203
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-07-08 21:23:33 +00:00
James Price af89c729ed writer: Move sanitizers into the backends
Adds a new single-function API for the generators, which applies the
sanitizing transform and performs the generation in one step, and
returns a result object which contains the generated code and success
status/diagnostics.

The new APIs take an `Option` structure to control backend-specific
generation details (e.g. MSL fixed sample mask). The result objects
also provide backend-specific feedback (e.g. whether a UBO of buffer
lengths was generated).

HLSL needs a list of entry points to validate, and it's the HLSL
sanitizer that generates an entry point for programs that do not have
one. This change makes the HLSL generator return the list of
post-sanitize entry points so that the Tint executable can forward
them to the validation code.

Change-Id: I2d5aa27fda95d7c50c5bef41e206aee38f2fd2eb
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/57101
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@chromium.org>
2021-07-08 16:00:23 +00:00
Ben Clayton 97bddeee20 [transform] Add ForLoopToLoop
Transforms a for-loop into a loop.
Will be required by the SPIR-V writer.

Bug: tint:952
Change-Id: Iba859bd144d702cee85374f2cfcb94cd7465ca98
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/57202
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-07-08 10:00:17 +00:00
Ryan Harrison 2f258d1bf8 Converting to Atomic-Free Plain to Constructible
The language in the spec and details of the restriction have changed,
https://github.com/gpuweb/gpuweb/pull/1876.

BUG=tint:928

Change-Id: Ib9f4d5e785bb5e04d63e880fe8984a8683d759f0
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/57260
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Auto-Submit: Ryan Harrison <rharrison@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-07-07 20:41:00 +00:00
Ben Clayton 9545fb76b6 Remove depreated APIs and WGSL
WGSL:
* Remove vertex_idx and instance_idx.
  These are now vertex_index and instance_index.
  It seems this was removed once before, then reverted due to CTS
  failures, but the original change never landed again.
* Remove the [[set(n)]] decoration. This has been [[group(n)]] for
  months now.

API:
* Remove deprecated enums from transform::VertexFormat.
* Remove transform::Renamer constructor that takes a Config. This should
  be passed by DataMap.
* Remove ast::AccessControl alias to ast::Access.

Change-Id: I988c96c4269b02a5d77163409f261fd5923188e0
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56541
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-07-06 10:20:19 +00:00
Ben Clayton 692fc20797 [writer/hlsl,msl] Correctly generate inf and nan literals
Also add missing msl macros to the renamer.

Bug: tint:951
Change-Id: I543e6eae885c979596ca63f9d6c7378dd5425e8a
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56941
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-07-06 09:43:49 +00:00
Ben Clayton 5d8eb4a758 reader/wgsl: Improve reserved keyword error messages
And add `vec` and `mat` to the reserved keyword list (see https://github.com/gpuweb/gpuweb/pull/1896)

Move these reserved keyword checks out of the lexer and into the parser.
Generate a sensible error message.
Add tests.

Change-Id: I1876448201a2fd773f38f337b4e49bc61a7642f7
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56545
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-07-05 21:48:37 +00:00
Ben Clayton b4ff73e250 [hlsl] transform: Zero init arrays with a loop
If the array size is greater than a threshold.
This is a work around for FXC stalling when initializing large arrays
with a single zero-init assignment.

Bug: tint:936
Fixed: tint:943
Fixed: tint:942
Change-Id: Ie93c8f373874b8d6d020d041fa48b38fb1352f71
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56775
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-07-05 17:18:16 +00:00
Ben Clayton 4135ea55eb writer/hlsl: Don't wrap arrays in structures
FXC has trouble dealing with these.
This was originally added to handle returning arrays as structures.
HLSL supports typedefs, which is a much simpiler solution, and doesn't upset FXC.

Bug: tint:848
Bug: tint:904
Change-Id: Ie841c9c454461a885a35c41476fd4d05d3f34cbf
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56774
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-07-05 15:20:57 +00:00
Ben Clayton 0e41747281 writer/hlsl: Emit for-loops where possible.
Use the new transforms to try and simplify loops into for-loops.
Emit loops when the initialiser, condition and continuing are simple enough to do so.

Bug: tint:952
Change-Id: I5b3c225b245ffa72996abf6a70f52a9cd25b748e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56772
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-07-02 22:17:25 +00:00
Ben Clayton 5e607680e7 transform: Add LoopToForLoop
A Transform that attempts to convert WGSL `loop {}` statements into a for-loop statement.
For-loops cause less broken behavior with FXC than our current loop constructs.

Bug: tint:952
Change-Id: I0b7b1dbec9df4c004b0419d3feae53a195ec79bb
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56767
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-07-02 22:17:25 +00:00
Ben Clayton 75cd59261d transform: Add FoldTrivialSingleUseLets
This transform is intended to clean up the output of the SPIR-V reader, so that we can pattern match loops that can be transformed into a for-loop.

Bug: tint:952
Change-Id: Iba58e4e1f6e20daaf7715e493df53346cdb7c89f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56766
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>
2021-07-02 21:15:44 +00:00
James Price 37cabbb468 validation: structures cannot be empty
Fixed many tests that had empty structures.

Change-Id: Id91312afa39a6293426f99d0dd12578dba46aa61
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56621
Auto-Submit: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-07-01 08:13:41 +00:00
Ben Clayton e58ecaa7cb transform::Robustness: Clamp texture[Load|Store] coordinates
Bug: tint:748
Change-Id: I213a4b14e6ae2e8bc8fd01dc241ad15f7c5c5c6c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56544
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-06-30 15:04:00 +00:00
Ben Clayton 0273f1a604 transform: Rename BoundArrayAccessors to Robustness
We will want this transform to do more bounds and argument sanitization.

Bug: tint:748
Change-Id: I38cb9623622e9f5ab85d8cd420d669ca6be77099
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56543
Auto-Submit: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-06-30 13:23:36 +00:00
Sarah e6cb51e715 validation: compute shader must include 'workgroup_size' in its attributes
Bug: tint:884
Change-Id: If96c6df3247fee142a779117fa26d006afd4f7ef
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55680
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-29 18:39:44 +00:00
James Price d18f2e0d6e writer/spirv: Do not add Flat to fragment outputs
Use the sanitizer to add the decoration only to the variables that are
vertex outputs and fragment inputs.

Bug: dawn:963, tint:746
Change-Id: I1b91cf3550fb3c6f583d69e822444534a576e0cd
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56460
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
2021-06-29 18:05:25 +00:00
Ben Clayton d960328f07 transform/VertexPulling: Implement remaining work
Implement missing formats.
Implement vector width conversions.
Implement unaligned loads.

Bug: dawn:805
Change-Id: I89724b3027c637c99999c8ecdbf0d8ca4f571afc
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56062
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
2021-06-29 12:37:45 +00:00
James Price 6a25bf944e transform: Propagate interpolate attributes
Transforms that handle entry point IO need to strip interpolate
attributes when creating undecorated structures, and not strip them
when recreating the IO parameters and return types.

Bug: tint:746
Change-Id: Ifa7d3b9fe3950154689417ad387026ece3df81bb
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56243
Kokoro: Kokoro <noreply+kokoro@google.com>
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-28 23:04:43 +00:00
Sarah ac5dbd2d0f validation: add an internal decoration to allow atomic function parameters
Bug: tint: 927
Change-Id: Ia6f31bdbfa51c92b742faa89089649865bb45ad5
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56020
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-28 14:05:25 +00:00
Ben Clayton b5cd10c7bd Program: Track what transforms have been applied
Allows transforms to assert their dependencies have been run before they
are.

Also allows the backends to validate that their sanitizers have been run
before they're used.

Change-Id: I1e97afe06f9e7371283bade54bbb2e2c41f87a00
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55442
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-25 10:26:26 +00:00
James Price c3f19081f8 Validate attributes on function parameters
Entry point function parameter can only have builtin and location
attributes (unless a disable validation attribute is present). Other
functions cannot have any decorations on their parameters.

Fix parameter creation in the CanonicalizeEntryPointIO transform for a
case where it was not stripping attributes that are not valid for
function parameters.

Change-Id: I000908aa2dc007c52d100c5f65bca051a49bec9a
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55863
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>
2021-06-24 16:20:16 +00:00
James Price 14c0b8acbf Validate that in/out storage classes are not used
Use a DisableValidationDecoration to allow these storage classes only
for variables generated by the SPIR-V sanitizer. This is also used in
the Inspector tests, since the Inspector is currently run *after* the
SPIR-V sanitizer. These tests will be removed when this is no longer
the case.

Also validate that builtin/location decorations are not used on
variables (unless they have input/output storage class).

Fix or delete all of the other tests that were wrongly using these
storage classes and attributes.

Bug: tint:697
Change-Id: I8be7fb16191f5e2bed9f7dfb700e51f3b97fd1fe
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55862
Auto-Submit: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-24 15:53:26 +00:00
Ben Clayton ffd28e2e1a diag: Add System enumerator to all diagnostics
Describes what Tint system raised the diagnostic.

Use this information in the fuzzers to distinguish between expected and unexpected failure cases in the Transform fuzzer tests.

Fixed: chromium:1206407
Fixed: chromium:1207154
Change-Id: I3b807acafe384a2fc363d2a4165a29693450b3cf
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55254
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2021-06-24 11:27:36 +00:00
Antonio Maiorano 261643bb9f Fix doxygen warnings
Change-Id: I5b3765ca0362e517990334d47f9defa673732a04
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55800
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-06-24 09:15:06 +00:00
James Price ae0bf04ad2 msl: Default the sample mask config parameter
This is needed to roll Tint into Dawn, and makes sense for this to be
optional anyway.

Bug: tint:387
Change-Id: Ia3a42f8add36dfba954dd0a5e06f2f84d8e95464
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55684
Commit-Queue: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Auto-Submit: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-22 22:57:09 +00:00
James Price c32e8f641b msl: Generate a fixed sample mask if requested
The CanonicalizeEntryPointIO transform now takes an optional config
option for a fixed sample mask. If there was no sample mask in the
authored shader, add one and return the fixed mask, otherwise AND the
fixed mask with the authored value.

Add a config option to the MSL sanitizer to receive a fixed sample
mask and pass it through to CanonicalizeEntryPointIO.

Bug: tint:387
Change-Id: I1678d915b19a718005d5832c5d624809ee432587
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55520
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>
2021-06-22 20:08:29 +00:00
James Price c0c7915190 Revert "Validate that in/out storage classes are not used"
This reverts commit 6330260f7d.

Reason for revert: Need by this CL which was also reverted:
https://dawn-review.googlesource.com/c/tint/+/55402

Original change's description:
> Validate that in/out storage classes are not used
>
> Use a DisableValidationDecoration to allow these storage classes only
> for variables generated by the SPIR-V sanitizer.
>
> Fix or delete all of the tests that were wrongly using these storage
> classes.
>
> Bug: tint:697
> Change-Id: Ife1154f687b18529cfcc7a0ed93407fd25c9868e
> Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55404
> Reviewed-by: Ben Clayton <bclayton@google.com>
> Kokoro: Kokoro <noreply+kokoro@google.com>
> Auto-Submit: James Price <jrprice@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: I54db99d6d0fdf28c27a1f2b9858b84f5cd197409
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: tint:697
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55660
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
2021-06-22 17:13:51 +00:00
James Price 6330260f7d Validate that in/out storage classes are not used
Use a DisableValidationDecoration to allow these storage classes only
for variables generated by the SPIR-V sanitizer.

Fix or delete all of the tests that were wrongly using these storage
classes.

Bug: tint:697
Change-Id: Ife1154f687b18529cfcc7a0ed93407fd25c9868e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55404
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Auto-Submit: James Price <jrprice@google.com>
Commit-Queue: James Price <jrprice@google.com>
2021-06-21 20:27:56 +00:00
James Price 3b02d54ab0 vertex_pulling: Remove legacy shader IO support
Bug: tint:697
Change-Id: Ia4665eb1a520218e05a5878ea5abb3604aff4a6f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55403
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
Auto-Submit: James Price <jrprice@google.com>
2021-06-21 19:37:26 +00:00
James Price 960aa2ee75 msl: Add ArrayLengthFromUniform transform
Generate a uniform buffer that will receive the lengths of all storage
buffers, and use this to implement calls to arrayLength(). The
transform is provided with a set of mappings from storage buffer
binding points to the corresponding index into the array of buffer
lengths. The transform reports whether it generated the uniform
buffers or not.

Use this transform from the MSL sanitizer, using the binding number as
the index into the array. This matches the behavior of spirv-cross,
and so works with how Dawn already produces this uniform buffer.

Bug: tint:256
Change-Id: I2682d2d024e8daa30f78270b8cfb6bbb32632133
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54480
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-19 00:33:35 +00:00
Ben Clayton 75db82c96b sanitizers: Use the ZeroInitWorkgroupMemory transform
Zero the workgroup memory for all backends.
We can probably disable this for the backends that support workgroup zeroing, but that's an optimization we can perform later.

Fixed: tint:280
Change-Id: I9cad919ba3a15b8cedfe6939317d1f6b95425453
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55244
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-18 22:44:31 +00:00
Ben Clayton 3a600e0deb transform: Add ZeroInitWorkgroupMemory
Zero initializes all referenced workgroup storage classed variables used by each entry point.

Bug: tint:280
Fixed: tint:911
Change-Id: I3fca26a10f015f08fedef404720bbe6fd7b343a9
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55243
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-18 22:44:31 +00:00
Ben Clayton 094930433d intrinsics: Remove deprected arrayLength instrinsic
Fixed: tint:806
Change-Id: I1d4ad27af73a1f64b926af64a123e2c0c2941e29
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55240
Kokoro: Kokoro <noreply+kokoro@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-18 22:44:31 +00:00
Ben Clayton 165512c57e writer/hlsl: Emit UBO as an array of vector
Instead of a ConstantBuffer.

HLSL requires that each structure field in a UBO is 16 byte aligned.
WGSL has much looser constraints with its UBO field alignment rules.

Instead generate an array of uint4 vectors, and index into this, much
like we index into [RW]ByteAddressBuffers for SSBOs.

Extend the DecomposeStorageAccess transform to support uniforms too.
This has been renamed to DecomposeMemoryAccess.

Change-Id: I3868ff80af1ab3b3dddfbf5b969724cb87ef0744
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55246
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-18 21:15:25 +00:00
James Price 90503dec9c reader/wgsl: Remove old shader IO syntax
Removing parsing support for the 'in' and 'out' storage classes is
enough to prevent anyone from using the old syntax. The Input and
Output storage classes will remain in the AST for now, as the SPIR-V
reader still has codepaths that use them, and the SPIR-V writer
currently still relies on them.

Bug: tint:697
Change-Id: Ifef9eda8bcbf2f243b1e1d8d4fab25784cd3f80e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54841
Auto-Submit: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
2021-06-18 20:14:07 +00:00
Ben Clayton e6d171ac66 writer/hlsl: Implement atomics
Storage buffers are emitted as `ByteAddressBuffer`s in HLSL, so we have to jump through hoops to support atomic ops on storage buffer atomics.
Workgroup atomics are far more conventional, but very little code can be shared between these two code paths.

Bug: tint:892
Change-Id: If10ea866e3b67a093e87aca689d34065fd49b705
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54651
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-18 18:56:13 +00:00
Antonio Maiorano adbbd0ba66 Validate scalar constructor and implement conversion to vecN<bool> in spir-v backend
After implementing validation and fairly exhaustive tests, discovered
that conversion of scalar vector to bool vector did not work in the
spir-v backend. For module scope variables, we use and rely on the
FoldConstants transform to ensure no conversion needs to take place.
This is necessary because we cannot easily introduce temporary values
and refer to them when casting at module scope. Note that for the same
reason, module-level conversions are always constant foldable, so this
works. For function-level conversions, implemented support to emit a
comparison against a zero value, and store the result in the bool
vector.

Bug: tint:865
Change-Id: I0528045e803f176e03428bc7eac31ae06920bbd7
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54744
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-18 15:32:21 +00:00
Antonio Maiorano 0507273047 Implement a FoldConstants transform that currently folds scalar and vector conversions
This is required for implementing module-level conversions in the spir-v
backend (upcoming CL).

Bug: tint:865
Change-Id: I7fd38c6b1628c791851917165991bc247fc113c2
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54740
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-18 14:59:51 +00:00
James Price 567f2e4f3b transform/msl: Run InlinePointerLets and Simplify
This will be relied on by the upcoming arrayLength transform.

Update test expectations.

Change-Id: Ib74b647abcd6f4393f9899ce40bbf06f6e53e7f4
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55180
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-18 09:47:23 +00:00
Ben Clayton 989c3a1811 reader/wgsl: Parse atomic<T> types
Bug: tint:892
Change-Id: Ib6338ee78fccfca339f53c9074671f89bae1537f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54645
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-17 15:48:39 +00:00
Sarah 10442eff7d validation: limit dynamic indexes to references to matrices and arrays
https://github.com/gpuweb/gpuweb/pull/1801
indexes must be of type 'i32' or 'u32'

Bug: tint:867
Change-Id: Ie5bfacf87af5a06d5428dc510145e96fb156c42e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54720
Kokoro: Kokoro <noreply+kokoro@google.com>
Auto-Submit: Sarah Mashayekhi <sarahmashay@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-16 18:50:13 +00:00
Sarah b6fdcc54df transform: remove VarForDynamicIndex transform.
Dynamic indexes are limited to references to matrices and arrays
https://github.com/gpuweb/gpuweb/pull/1801

Bug: tint:867
Change-Id: I114daa053c8a4ffd23ce784ac4538567a551cc21
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54701
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Auto-Submit: Sarah Mashayekhi <sarahmashay@google.com>
2021-06-16 17:42:53 +00:00
Ben Clayton 31936f375f Add transform/PadArrayElements
Replaces arrays with an explicit stride with an array to a structure holding the element padded with a `[[size]]` decoration.

Note that the HLSL writer is still not correctly emitting structure fields with a `[[size]]`, which will be fixed in a follow up change.

Bug: tint:182
Bug: tint:895
Fixed: tint:180
Fixed: tint:649
Change-Id: Ic135dfc89309ac805507e9f39392577c7f82d154
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54582
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-16 09:50:11 +00:00
Ben Clayton 677437d650 resolver: Reenable VS validation for returning position
Fixed: tint:730
Change-Id: I7d5ebeffe2d522182d07f554a671bebab1cce2e6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54420
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-16 09:50:11 +00:00
Ben Clayton 9ef52ffd8c writer/hlsl: Use the WrapArraysInStructs transform
Fixes issues with using arrays as function return types.

Fixed: tint:848
Change-Id: Iee8af0f2cea9d19e448176446c6599be2bd32316
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54321
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-16 09:19:36 +00:00
Ben Clayton 0597a2b51b Add transform/WrapArraysInStructs
And replace the MSL writer's logic to do this with the transform.

We need to do the same thing in HLSL, and in the future GLSL too.

Partially reverts fbfde720

Change-Id: Ie280e011bc3ded8e15ccacc0aeb12da3c2407389
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54242
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-16 09:19:36 +00:00
James Price 3184544182 transform/bound_array_accessors: Use new arrayLength overload
Change-Id: I525693c232f1c16ffae5e17f76ae2b9349539469
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54600
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>
2021-06-15 15:05:17 +00:00
Ben Clayton 7fe0106b12 resolver: Validate that a call statement has no return value
Also split out validation tests from call_test.cc into call_validation_test.cc.

Bug: tint:886
Change-Id: I1e1dee9b7c348363e89080cdecd3119cc004658f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54063
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-11 13:22:27 +00:00
James Price 830b97ffa9 writer/msl: Handle texture and sampler variables
Move these module-scope variables to entry point parameters and pass
them as arguments to functions that use them. Disable entry point IO
validation for them.

Emit [[texture()]] and [[sampler()]] attributes on these entry point
parameters.

Fixed: tint:145
Change-Id: I936a80801875a5d0b6cd98a2e8f3e297a2f53509
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53961
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-11 12:34:26 +00:00
James Price 2940c7002c writer/msl: Avoid generating unnecessary pointers
When moving private and workgroup variables into the entry point,
generate pointers to pass as arguments to sub-functions on demand,
instead of upfront. This removes a bunch of unnecessary dereferences
for accesses inside the entry point, and one function variable.

Change-Id: I7d1aabdf14eae33b569b3316dfc0f9fbd288131e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54300
Auto-Submit: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
2021-06-11 12:29:56 +00:00
Ben Clayton aba42ed362 Add arrayLength() intrinsic that accepts a pointer argument
The old non-pointer argument overload remains, but is now deprecated.

Bug: tint:806
Change-Id: Ic917ccec0f162414ce1b03df49e332ad84d8060f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54061
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-10 18:43:04 +00:00
Ben Clayton 0aa7edbbd5 transform/spirv: Use InlinePointerLets & Simplify
arrayLength() will take a pointer to a storage buffer array.
This pointer may pass through function scoped let statements.
To make this intrinsic easier to generate, inline the pointer lets and
remove chains of &*&*.

Bug: tint:806
Change-Id: Ib2c79a9c38cba7391cbb4313986af9a72b0f0435
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54060
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
2021-06-10 17:34:44 +00:00
Antonio Maiorano 14b3403148 Validate function call arguments
- Add resolver/call_test.cc for new unit tests, and move a couple that
were in resolver/validation_test.cc to it

- Fix CalculateArrayLength transform so that it passes the address of
the u32 it creates to the internal function

- Fix tests broken as a result of this change

Bug: tint:664
Change-Id: If713f9828790cd51224d2392d42c01c0057cb652
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53920
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2021-06-09 20:17:59 +00:00
Ben Clayton 241c16d626 resolver: Ensure that decorations aren't duplicated
Fixed: tint:525
Change-Id: I993b60f82ac5d5e07e1c76980604e6aaf1b94fb3
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53806
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-09 18:53:57 +00:00
Ben Clayton 950809f534 Rename 'constructed types' to 'type declarartions'
Change-Id: I0c79be17a10a542df602447e555c1344621d2dce
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53803
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-06-09 14:32:14 +00:00
Ben Clayton 8758f10a20 ast: Replace NamedType with TypeDecl
TypeDecls (alias, structure) are not a types - they declare types.
ast::TypeName is what's used for a ast::Type.

Previously we were trying to automatically convert these to TypeNames in the builder, but having these inherit from ast::Type was extremely error prone.

reader/spirv was actually constructing ast::Structs and using them as types, which is invalid.

Change-Id: I05773ad6d488626606019015b84217a5a55a8e8a
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53802
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-06-09 14:32:14 +00:00
Ben Clayton 93e8f527ee wgsl: Deprecate [[access]] decorations
Handle access control on var declarations instead of via [[access]]
decorations. This change does the minimal work to migrate the WGSL
parser over to the new syntax. Additional changes will be needed
to correctly generate defaulted access qualifiers, as well as
validating access usage.

The [[access]] decorations are still supported by the WGSL parser,
with new deprecated warnings, but not for aliases. Example:
   var x : [[access(x)]] alias_to_struct;

Making this work is far more effort than I want to dedicate to backwards
compatibility, and I do not beleive any real-world usage will be doing
this.

Still TODO:
* Adding access control as the optional, third parameter to ptr<>.
* Calculating default accesses for the various storage types.
* Validating usage of variables against the different accesses.

Bug: tint:846
Change-Id: If8ca82e5d16ec319ecd01f9a2cafffd930963bde
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53088
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
Reviewed-by: David Neto <dneto@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2021-06-04 20:41:47 +00:00
Ben Clayton 620d77e480 PB: Make Var() and Global() params optional
and allow them in any order.

We're about to add Yet Another optional parameter - access control.
For style, we probably want this field before the decorations, however
that means adding more default values for all the cases where we don't
need to specify the access control.

Instead use some template magic to allow extra parameters to be
specified in any order, and entirely optional, with sensible defaults.
This keeps things readable and without huge code refactorings.

Bug: tint:846
Change-Id: I4f61eb765de63ad98ae786d187d2bd1b42942756
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53087
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-06-04 19:55:08 +00:00
James Price 7697c31e84 writer/msl: Emit builtins as parameters
Add a config parameter for the CanonicalizeEntryPoint transform that
selects between emitting builtins as parameters (for MSL) or struct
members (for HLSL).

This fixes all of the shader IO issues in Tint's E2E tests for MSL.

Fixed: tint:817
Change-Id: Ieb31cdbd2e4d96ac41f8d8515fd07ead8241d770
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53282
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
2021-06-04 14:40:28 +00:00
James Price 3604e80321 transform/EntryPointIO: Use InsertFront
This removes the need to check for an empty function body and means we
can unconditionally build the function constant initializers, instead
of deferring this work via captured lambdas.

Change-Id: I1571a065fb5885e2b29f0ffb41940a71e5b3f121
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/53281
Auto-Submit: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
2021-06-04 14:03:28 +00:00
James Price b487c71e59 writer: Add parentheses for array accesses
The LHS should be wrapped in parentheses if it has lower precedence
than the access. This fixes issues with pointer dereferences followed
by array accesses, where we were previously generating *a[i].

Change-Id: I639f94b642f32119350b0a0d23f4ff2a5d6c3c25
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/52843
Auto-Submit: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-01 12:18:10 +00:00
James Price 42220ba1b2 writer/msl: Hoist array and struct initializers
Pull the HLSL transformation out to a standalone transform that can be
used by both HLSL and MSL.

The new E2E tests do not yet pass for MSL because they produce array
assignments, which will be addressed in the next patch.

Fixed: tint:826
Change-Id: Idc27c81ad45e3d4ab96d82663927d2fc1384618e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/52842
Auto-Submit: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-01 12:08:20 +00:00
Ben Clayton 646f4a9958 ast::AccessControl: Remove 'Only' suffix from enums
As requested in:
https://dawn-review.googlesource.com/c/tint/+/52503/1..3/src/intrinsics.def#38

Bug: tint:832
Change-Id: I88881d0654305cdbc6c05256e227a3b048fbff29
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/52640
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-05-31 19:40:30 +00:00
James Price 564000fdd3 Remove deprecated functionality
The following deprecated features are no longer supported:
- frag_coord builtin
- sample_mask_in and sample_mask_out builtins
- void keyword
- const keyword

Fixed: tint:677
Fixed: tint:699
Fixed: tint:714
Fixed: tint:715
Change-Id: I40ce9711310e70e62465f58f2a7f4d959039e307
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/52041
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-05-27 17:03:27 +00:00
James Price 7a47fa8495 writer/msl: Handle private and workgroup variables
Add a transform that pushes these into the entry point and then passes
them by pointer to any functions that need them.

Since WGSL does not allow non-function storage class at
function-scope, add a DisableValidation attribute to bypass this
check.

Fixed: tint/726
Change-Id: Ic1f4cd691a54c19e77a60e8ba178508e4249bfd9
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51962
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>
2021-05-26 15:41:02 +00:00
James Price 28ec968b4f ast: Use IdentifierExpression for call targets
They are always identifiers, and this removes unnecessary type casting
from usages of CallExpression::func().

Change-Id: I7a11dc10658abab578395e20ad830cd5bc5a5b71
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51960
Auto-Submit: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-05-22 12:42:14 +00:00
Ben Clayton ed86bf99b0 Add transform::Simplify
Performs basic peephole optimizations on the AST.

Use in transform::Hlsl.

Required to have the DecomposeStorageAccess transform operate correctly with the output of InlinePointerLets transform, specifically when declaring `let` pointer expressions to storage buffers.

Fixed: tint:221
Fixed: tint:492
Fixed: tint:829
Change-Id: I536390921a6492378104e9c3c100d9e761294a27
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51921
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Reviewed-by: David Neto <dneto@google.com>
2021-05-21 21:01:23 +00:00
Antonio Maiorano 6cf7f2eca5 Remove ast::AccessControl::kInvalid
Also spruce up texture validation tests so that they validate error
messages.

Bug: tint:805
Change-Id: I6c86fc16014b127a7ef8254e5badf9b5bed08623
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51860
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2021-05-21 14:32:38 +00:00
Ben Clayton 351ac4a009 transform::VarForDynamicIndex: Operate on matrices
Much like arrays, the SPIR-V writer cannot cope with dynamic indexing of matrices.

Fixed: tint:825
Change-Id: Ia111f15e0cf6fbd441861a4b3455a33b82b692ab
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51781
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@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
2021-05-20 18:16:07 +00:00
Ben Clayton 19d3205e15 Remove typ::TypePair.
You've helped us bridge two worlds.
Good Night, Sweet Prince.

Fixed: tint:724
Change-Id: I0b4ba960e9cf5dcff7df9d2f332ea36d6663c440
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51667
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
2021-05-20 15:10:48 +00:00
Ben Clayton 9e32b20096 Add transform::VarForDynamicIndex
Use this as part of the Spirv sanitizer.
Cleans up buggy dynamic array indexing logic in the SPIR-V writer.

Fixed: tint:824
Change-Id: Ia408e49bd808bc8dbf3a1897eb47f9b33b71fdfb
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51780
Commit-Queue: Ben Clayton <bclayton@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-05-20 11:55:28 +00:00
Ben Clayton 06aa88aa97 hlsl: Pointer support
Add `transform::InlinePointerLets` - a Transform that moves all usage of function-scope  `let` statements of a pointer type into their places of usage.

Make the HLSL writer transform pointer parameters to `inout`.

Fixed: tint:183
Change-Id: I0a7552fa6cd31c7b7691e64feae3170a81cc6c49
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51281
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-05-19 19:16:32 +00:00
Antonio Maiorano 05743afb56 Revert "Add DuplicateStorageStruct transform"
This reverts commit 594075a2f0.

Reason for revert: This is not a complete solution. It does not cover assignment of variables of the same struct type, but of different access types. For example:

```
[[block]] struct S{ i : 32; };
var<storage> gr : [[access(read)]] S;
var<storage> gw : [[access(write)]] S;
fn f() {
  var a : S;
  a = gr;
  gw = a;
}
```

With my CL, we currently generate invalid assignments because the new types of 'S' for 'gr' and 'gw' are now all different types. We would need to generate functions to assign between them.

In the end, we will drop this strategy, and instead, Dawn will be modified to not rely on names.

Original change's description:
> Add DuplicateStorageStruct transform
>
> This transform is currently required by Dawn for it's GLSL backend so
> that SPIRV-Cross does not end up renaming the structures internally,
> which it does to fix aliasing problems. We can remove this transform
> if/once Dawn using binding numbers rather than names for uniform/storage
> buffer data.
>
> Bug: tint:386
> Bug: tint:808
>
> CloneContext: allow insert before/after of a node marked for removal
> Change-Id: I3ff3b37bca62db07d5c759250dd4777e279b7a4f
> Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51403
> Commit-Queue: Ben Clayton <bclayton@google.com>
> Kokoro: Kokoro <noreply+kokoro@google.com>
> Reviewed-by: Ben Clayton <bclayton@google.com>

TBR=bclayton@google.com,amaiorano@google.com,noreply+kokoro@google.com

Change-Id: I695347b0ffe8be23b9dc44885af378be56512406
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: tint:386
Bug: tint:808
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51500
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2021-05-19 12:22:59 +00:00
Antonio Maiorano 594075a2f0 Add DuplicateStorageStruct transform
This transform is currently required by Dawn for it's GLSL backend so
that SPIRV-Cross does not end up renaming the structures internally,
which it does to fix aliasing problems. We can remove this transform
if/once Dawn using binding numbers rather than names for uniform/storage
buffer data.

Bug: tint:386
Bug: tint:808

CloneContext: allow insert before/after of a node marked for removal
Change-Id: I3ff3b37bca62db07d5c759250dd4777e279b7a4f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51403
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-05-19 08:13:28 +00:00
Ben Clayton 9b54a2e53c Implement Pointers and References
This change implements pointers and references as described by the WGSL
specification change in https://github.com/gpuweb/gpuweb/pull/1569.

reader/spirv:
* Now emits address-of `&expr` and indirection `*expr` operators as
  needed.
* As an identifier may now resolve to a pointer or reference type
  depending on whether the declaration is a `var`, `let` or
  parameter, `Function::identifier_values_` has been changed from
  an ID set to an ID -> Type* map.

resolver:
* Now correctly resolves all expressions to either a value type,
  reference type or pointer type.
* Validates pointer / reference rules on assignment, `var` and `let`
  construction, and usage.
* Handles the address-of and indirection operators.
* No longer does any implicit loads of pointer types.
* Storage class validation is still TODO (crbug.com/tint/809)

writer/spirv:
* Correctly handles variables and expressions of pointer and
  reference types, emitting OpLoads where necessary.

test:
* Lots of new test cases

Fixed: tint:727
Change-Id: I77d3281590e35e5a3122f5b74cdeb71a6fe51f74
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50740
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-05-18 10:28:48 +00:00
Ben Clayton c5eebaf7d6 sem: Rename methods of sem::Pointer and Reference
Rename:
* type() to StoreType()
* storage_class() to StorageClass()

Move away from snake_case methods in the semantic namespace.
Try to avoid generic 'type()' method names.

Also add an assertion to detect doubly nested references (these are
invalid).

Bug: tint:727
Change-Id: I975a3f1e5fbed7947cc2fc156fee892b282c63de
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51220
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@google.com>
2021-05-17 20:38:17 +00:00
Ben Clayton 85bdf1753e ast: Rename UnaryOp::kDereference to kIndirection
This is what it is (currently) called in the spec

Bug: tint:727
Change-Id: Ie24f42499ed20c0c45ef4e9474bc6bb6a19bfa36
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51181
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-05-17 14:48:37 +00:00
Alastair F. Donaldson ac90829e1c Create a semantic class for block statements
Semantic information about block statements the resolver would
temporarily create while resolving is now exposed in a
sem::BlockStatement class.

In the process, semantic information about statements in general is
overhauled so that a statement has a reference to its parent
statement, regardless of whether this is a block.

Bug: tint:799
Bug: tint:800
Change-Id: I8771511c5274ea74741b8c86f0f55cbc39810888
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50904
Commit-Queue: Alastair Donaldson <allydonaldson@googlemail.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-05-15 14:48:46 +00:00
Antonio Maiorano dc4e6c1844 Remove sem::AccessControl
In preparation for implementing
https://github.com/gpuweb/gpuweb/issues/1604, this change removes the
sem::AccessControl node. Instead, the ast::AccessControl::Access enum is
now on the sem::StorageTexture class, as well as on sem::Variable. For
sem::Variable, the field is set when the variable's type is either a
storage buffer or a storage texture.

Bug: tint:802
Change-Id: Id479af36b401d067b015027923f4e715f5f69f25
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51020
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2021-05-14 17:51:13 +00:00
Ben Clayton f6c84e4d45 Use StorageClass::kNone for ast local var decls
To declare a local variable, we write `var name : type`, not `var<function> name : type`.
This change fixes all the places where we were feeding StorageClass::kFunction into variable declarations.

Note that the resolved, semantic variable correctly infers the `kFunction` StorageClass.

Change-Id: I6221fabae1de0435044f29b9a91808421d5cace6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50821
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Commit-Queue: David Neto <dneto@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-05-12 21:08:22 +00:00
Ben Clayton 3103a1f666 BindingRemapper: Allow for binding point collisions
Add a new parameter to BindingRemapper::Remappings that allows resulting binding points to collide.

When enabled, the output of the transform contains two or more module-scoped variables with the same binding point, used by the same entry point, then these variables will be decorated with an internal decoration to disable validation for the collision.

This is to work around collisions generated for the HLSL backend where the variables actually exist in different register classes, which is permitted by D3D12.

The transform will only generate these decorations if it needs to.

Fixed: tint:797
Change-Id: Id8a87523801bd0cd0dd54227ebabd4299bc20c27
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50742
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-05-12 13:30:51 +00:00
Ben Clayton 451f2cc68a Add ast::DisableValidationDecoration
An [[internal]] decoration that specifically disables certain validation checks.
Begin with a single kFunctionHasNoBody mode.
Migrate the Resolver to using this instead of allowing any InternalDecoration to disable the checks for no-body.

Bug: tint:797
Change-Id: I213b9a6844a456775ede06d60e456d9f77a449d0
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50741
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-05-12 12:54:21 +00:00
Brandon Jones ecd31c5ee6 Remove texture_external overload for textureSample and add textureSampleLevel
Removes the texture_external overload for textureSample and replaces it
with a texture_external overload of textureSampleLevel to match merged
spec. Adds a transform that adds the implicit level parameter to
textureSampleLevel. Modifies unit tests to reflect change.

Bug: dawn:728
Change-Id: I2dbc9232b4343db1075be79fda0054231860f3b1
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50701
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-05-12 10:37:03 +00:00
James Price 77daee15bd Remove legacy EmitVertexPointSize transform
This has been moved into the Spirv sanitizer, and Dawn is now using
this path.

Change-Id: Iffcbbc1c84e6bad0ebc51ded82d998bb307e2d6d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50564
Auto-Submit: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-05-11 13:16:10 +00:00
Brandon Jones 97a7d266e0 Transform textureLoad calls for texture_external
Adds a transform that adds an additional 'level' parameter to textureLoad calls
when used with a texture_external. Adds a test for the textureLoad
transform. Additionally adds a test for calls to textureDimensions with
a texture_external.

Bug: dawn:728
Change-Id: I613ce8185e9a4c49529fd8e48323e586c95dde04
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50420
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-05-11 10:35:43 +00:00
Ben Clayton 3f968e7b05 Resolver: Validate resource binding decorations
Validate that:
* That resource variables have resource bindings
* Only resource variables have resource bindings
* That a [[binding]] decoration is paired with a [[group]]
* That binding points are not reused in the same entry point

Fixed: tint:235
Fixed: tint:645
Bug: tint:645
Change-Id: I2542934b4c6a2b4bbde48242932c04c796033a90
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50500
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-05-10 19:16:46 +00:00
Ben Clayton f14e0e1c8c Rename all type UnwrapXXX() methods
Give them sensible names.
Make them act consistently.
Remove those that were not used.

Change-Id: Ib043a4093cfae9f81630643e1a0e4eae7bca2440
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50305
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-05-10 18:06:31 +00:00
Ben Clayton a34fa0ecb7 Remove sem::Alias
With the parsers now using ast::Types, nothing should be producing these any more.

This change also removes Resolver::Canonical(), which is now unneeded as there are no sem::Aliases to remove.

Bug: tint:724
Change-Id: I0c1a49f49372c1fcc37864502f07c5c76328d471
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50304
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-05-10 17:38:01 +00:00
Brandon Jones c705b6caac Add external_texture_transform to backend writers
Adds the external texture transform to always run in the spirv, msl, and hlsl writers.

Bug: dawn:728
Change-Id: I15a96e877e1e88f9a4a4b015cf47251b41b18e35
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50024
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Brandon Jones <brandon1.jones@intel.com>
2021-05-10 16:15:31 +00:00
Ben Clayton 8f96595540 ExternalTextureTransform: Fix undefined behavior
WGSL now supports type inferencing with `let` declarations, so `var->type()` may return nullptr.
Calling a method (`Is<T>()`) on a nullptr object is UB. Instead used the free-function form which can handle nullptr objects.

Change-Id: I8faf875e1550eac1306ad731a65f3662bc4e5b43
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50307
Auto-Submit: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Brandon Jones <brandon1.jones@intel.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-05-10 16:06:51 +00:00
Ben Clayton 4cd5eea87e sem: Fold together sem::Array and sem::ArrayType
There's now no need to have both.
Removes a whole bunch of Sem().Get() smell, and simplifies the resolver.

Also fixes a long-standing issue where an array with an explicit, but equal-to-implicit-stride attribute would result in a different type to an array without the decoration.

Bug: tint:724
Fixed: tint:782
Change-Id: I0202459009cd45be427cdb621993a5a3b07ff51e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50301
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-05-07 20:58:34 +00:00
Ryan Harrison 74490e118e Test that entry point IO attributes are of valid types
BUG=tint:773

Change-Id: I94e8624647c645efe7ed558caa3d3bd05dd72f63
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50260
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Auto-Submit: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-05-07 20:28:04 +00:00
Ben Clayton ba6ab5e6bd sem: Fold together sem::Struct and sem::StructType
There's now no need to have both.
Removes a whole bunch of Sem().Get() smell, and simplifies the resolver.

Bug: tint:724
Fixed: tint:761
Change-Id: I756a32680ac52441fd6eebf6fc53dd507ef5e538
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49961
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-05-07 14:49:34 +00:00
Ben Clayton fe5c305891 Fix all doxygen warnings
Fixed: tint:776
Change-Id: I26e7dc36b19cf38612f6d530a9e774ac519d70e7
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50220
Commit-Queue: Ben Clayton <bclayton@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-05-06 16:26:53 +00:00
Ryan Harrison a0174e613f Add fuzzing for transform::VertexPulling
Includes a significant refactoring of helper functions in
tint_common_fuzzer.cc/.h

BUG=tint:722

Change-Id: I1fdab0113bae02c4a0bf8da0d1b7729f05a2fc5b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49902
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Auto-Submit: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-05-06 15:43:33 +00:00
Ben Clayton 58f93c9e26 Build fixes
Two incompatible changes landed simultaniously.
Also fix a warning about variable shadowing.

Change-Id: I84c9ba48fb87a348a5b0e622ca2fdb191f95a6b2
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49964
Commit-Queue: Ben Clayton <bclayton@google.com>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2021-05-05 18:00:52 +00:00
Ben Clayton 8e1d177590 Remove Clone() from sem::Types
These should always be generated by the resolver, not manually constructed by transforms.

This also fixes duplicate intrinsic output from DecomposeStorageAccess.

Bug: tint:724
Change-Id: I979d55f7b141f38c0504dc72cc3c63e8353ac14f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49881
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-05-05 16:55:22 +00:00
James Price 8c6808fa13 transform/Spirv: Add EmitVertexPointSize logic
This is disabled by default and can be enabled via transform data. The
separate EmitVertexPointSize transform will be removed once Dawn
starts using the Spirv sanitizer to do this.

Bug: tint:753
Change-Id: I676c4cef5bc53f2dbf2330645faa4a0f2bfe11bd
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49980
Auto-Submit: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-05-05 16:54:52 +00:00
Ben Clayton 6c1cf6569e sem::Matrix: Pass the column type to the constructor
It's common to want this when indexing matrices.

Change-Id: Ic60a3a8d05873119d78a3cb0860d129e33ac3525
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49880
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
2021-05-05 16:48:32 +00:00
Brandon Jones b432f232b5 Add Transform For External Textures
Adds a transform to reclassify single-plane texture_external types into 2d sampled textures. Adds a unit test for the transform.

Bug: dawn:728
Change-Id: Id1f88565aeacbfea47b140181c78ad122edbdae8
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49641
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-05-05 16:38:12 +00:00
Ben Clayton 02ebf0dcae ast: Migrate to using ast::Type
Remove all sem::Type references from the AST.
ConstructedTypes are now all AST types.

The parsers will still create semantic types, but these are now disjoint
and ignored.
The parsers will be updated with future changes to stop creating these
semantic types.

Resolver creates semantic types from the AST types. Most downstream
logic continues to use the semantic types, however transforms will now
need to rebuild AST type information instead of reassigning semantic
information, as semantic nodes are fully rebuilt by the Resolver.

Bug: tint:724
Change-Id: I4ce03a075f13c77648cda5c3691bae202752ecc5
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49747
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-05-05 09:09:41 +00:00
Ben Clayton 02ada29af2 Add Transform::CreateASTTypeFor()
Reconstructs the AST nodes needed to build the given semantic type.

Bug: tint:724
Change-Id: Iadf97a47b68088a6a1eb1e6871fb3a7248676417
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49745
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-05-04 18:13:21 +00:00
Ben Clayton 49a545c919 ast::Module: Move ConstructedTypes() to typ::Type
And add a few additional helper methods.
Stepping stone to having the module only reference AST nodes.

Bug: tint:724
Change-Id: Ib321dadce5f739afe4f71cbafde9dd2d1c6431bb
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49743
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-05-04 18:03:11 +00:00
James Price e87ded8567 Rename builtin constant_id to override
There are no downstream usages, so we can skip deprecation. Allowing
the ID to be omitted will be done in a separate patch.

Fixed: tint:754
Change-Id: I3bd6de4d0f426fc3c66708bfd5b411a4051b375b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49581
Commit-Queue: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-04-30 17:14:19 +00:00
Ben Clayton 9481156eb9 Fix Undefined Behaviour
All caused by calling Castable::As<> on nullptr objects.

Bug: tint:760
Change-Id: I0a408b3cd58086cfeab5a1af34d643f50f304948
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49523
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-04-30 10:16:45 +00:00
James Price 5f7f7c0f9e Revert "transform/EmitVertexPointSize: Handle entry point parameters"
This reverts commit e6307e5100.

Reason for revert: This change assumes that vertex shaders do not return void, but the validation for this is currently disabled since CTS still has vertex shaders that return void.

Original change's description:
> transform/EmitVertexPointSize: Handle entry point parameters
>
> Generate a new struct that contains members of the original return
> type with the point size appended to it, and replace return statements
> as necessary.
>
> The SPIR-V sanitizer then special-cases this builtin when handling
> entry point IO to always use a RHS which is a literal.
>
> Fixed: tint:732
> Change-Id: Id718632a5e671f3e7c82a304f5bc1fc223a6c8ee
> Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49440
> Kokoro: Kokoro <noreply+kokoro@google.com>
> Reviewed-by: Ben Clayton <bclayton@google.com>
> Commit-Queue: James Price <jrprice@google.com>
> Auto-Submit: James Price <jrprice@google.com>

TBR=bclayton@google.com,jrprice@google.com,noreply+kokoro@google.com

Change-Id: I6113b2d8994eb088cb890a6af52e392b2d5a45f6
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49582
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: James Price <jrprice@google.com>
2021-04-29 21:29:36 +00:00
James Price e6307e5100 transform/EmitVertexPointSize: Handle entry point parameters
Generate a new struct that contains members of the original return
type with the point size appended to it, and replace return statements
as necessary.

The SPIR-V sanitizer then special-cases this builtin when handling
entry point IO to always use a RHS which is a literal.

Fixed: tint:732
Change-Id: Id718632a5e671f3e7c82a304f5bc1fc223a6c8ee
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49440
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
Auto-Submit: James Price <jrprice@google.com>
2021-04-29 13:05:34 +00:00
James Price 65ae64d009 transforms: Add a ProgramBuilder::Sym() helper
This creates a new, unnamed symbol.

Change-Id: I0ea11e812296c3215ba624a18777d3e7233e2ae4
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49441
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Auto-Submit: James Price <jrprice@google.com>
2021-04-29 12:59:14 +00:00
James Price 0949bdf68f Add transform to strip entry points from a module
Remove the Generator::GenerateEntryPoint() APIs as they were mostly
unimplemented and not used by anything except the Tint sample app,
which now uses the new transform.

Change-Id: I1ccb303d6c3aa15e622c193d33b753e22bf39a95
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49160
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
2021-04-28 15:33:03 +00:00
Ben Clayton 86a406b79e Revert "transforms: Use new ProgramBuilder::Sym() helper"
This reverts commit 19b4b6cc2b.

Reason for revert: https://dawn-review.googlesource.com/c/tint/+/48980 was reverted which added the Sym() helper.

Original change's description:
> transforms: Use new ProgramBuilder::Sym() helper
>
> Change-Id: I8600a1935556632c94778248f3711531a22f4701
> Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48981
> Commit-Queue: James Price <jrprice@google.com>
> Reviewed-by: Ben Clayton <bclayton@google.com>

TBR=bclayton@google.com,jrprice@google.com,noreply+kokoro@google.com

Change-Id: Ie176df6e1b7606615e2acfae99e7853e6227185a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49261
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-04-27 14:24:08 +00:00
Ben Clayton e008b1ffcf Revert "transform/EmitVertexPointSize: Handle entry point parameters"
This reverts commit 05e16ed1c5.

Reason for revert: Breaks Dawn autoroll.

 [ RUN      ] VertexBufferRobustnessTest.DetectInvalidValues/Metal_Intel_R_UHD_Graphics_630__e_metal_enable_vertex_pulling
 ../../src/tests/DawnTest.cpp:945: Failure
 Value of: self->mExpectError
   Actual: false
 Expected: true
 Got unexpected device error: Tint SPIRV reader failure:
 Parser: error: cannot store a value other than constant 1.0 to PointSize builtin: OpStore %8 %18


Original change's description:
> transform/EmitVertexPointSize: Handle entry point parameters
>
> Generate a new struct that contains members of the original return
> type with the point size appended to it, and replace return statements
> as necessary.
>
> Fixed: tint:732
> Change-Id: I2b5816144d5e95c65baca95dc0c50b4dfdd25ed3
> Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48980
> Auto-Submit: James Price <jrprice@google.com>
> Commit-Queue: James Price <jrprice@google.com>
> Reviewed-by: Ben Clayton <bclayton@google.com>

TBR=bclayton@google.com,jrprice@google.com,noreply+kokoro@google.com

Change-Id: Id795d5320471d09d66a964c8e469b60da8f0a672
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/49260
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-04-27 12:58:31 +00:00
Ben Clayton 5d5ec24571 src/transform: Remove deprecated APIs
These have now been removed from Dawn.

Change-Id: I50e784141e6eb07f4f0d3f508bb8c6199429dd63
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48044
Auto-Submit: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2021-04-26 20:38:36 +00:00
James Price 19b4b6cc2b transforms: Use new ProgramBuilder::Sym() helper
Change-Id: I8600a1935556632c94778248f3711531a22f4701
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48981
Commit-Queue: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-04-26 19:49:06 +00:00
James Price 05e16ed1c5 transform/EmitVertexPointSize: Handle entry point parameters
Generate a new struct that contains members of the original return
type with the point size appended to it, and replace return statements
as necessary.

Fixed: tint:732
Change-Id: I2b5816144d5e95c65baca95dc0c50b4dfdd25ed3
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48980
Auto-Submit: James Price <jrprice@google.com>
Commit-Queue: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-04-26 19:37:46 +00:00
James Price 439ef278b7 transform/VertexPulling: Handle entry point parameters
Adds support for the new shader IO syntax by processing entry
parameters and pushing them to function-scope variables as necessary.

Module-scope variables are still supported for now.

Fixed: tint:731
Change-Id: I36d7ce4e3a990b6323292cb7c685af37187d6fda
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48960
Auto-Submit: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-04-26 17:39:46 +00:00
Antonio Maiorano 73fdc16c33 wgsl parser: replace almost all sem::Type* with typ::Type where possible
All that remains in the wgsl parser that references sem::Type* are
the register_constructed funcs/types, and adding an ast::ExternalTexture
type.

Also:

* Added specialization of OperatorArrow for type::TypePairs that returns
the value by reference so that operator-> can chain properly.

* In a few places where we expect the type to implicitly cast to a
pointer for a bool expression, e.g. `if (type)` or `TINT_ASSERT(type)`,
I added access to the `.sem` member of the TypePair. I tried adding an
implicit cast to bool, but this results in ambiguity in gtest for
equality comparisons.

* Constified more type pointers in type nodes

* Replaced header includes with forward declares in wgsl/parser_impl.h

Bug: tint:724
Change-Id: Ie0875aa4d4a5e830e3466ac40c63cd185f357200
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48881
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2021-04-26 14:19:55 +00:00
Ben Clayton e204f27f86 ProgramBuilder: Migrate any remaining types to typ::*
Used as a stepping stone to emitting the ast::Types instead.

Bug: tint:724
Change-Id: Ib2d6c150fe8aa7c1e2c502676922b14b1518a4be
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48686
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-04-22 14:40:23 +00:00
Ben Clayton 7241a504f0 ProgramBuilder: Migrate arrays to typ::TypePair
Used as a stepping stone to emitting the ast::Types instead.

Bug: tint:724
Change-Id: Idadb7d8b5d6fce1d898127675442221de07a633d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48685
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-04-22 14:32:53 +00:00
Ben Clayton 43073d8aa3 tests: Use ProgramBuilder helpers where we can
A general code cleanup

Change-Id: Ib251ca2d4b71f75736bdba8b4255965593a76c31
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48680
Auto-Submit: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2021-04-22 13:50:53 +00:00
James Price 2dd393729c Require vertex shaders to return builtin(position)
Fixup many tests that were just returning void.

Change-Id: Ic93db5b187c679dc1c24a356b48a64e41ba9a823
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48560
Commit-Queue: James Price <jrprice@google.com>
Auto-Submit: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-04-21 16:13:42 +00:00
Ben Clayton 913a2f4b2a sem::StructType remove symbol()
The name now lives on the ast::Struct. Use that instead.

Bug: tint:724
Change-Id: I4ee5e9b29973e468edd8df8c5448816b36f0fca6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48384
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-04-20 15:21:21 +00:00
Ben Clayton 8a8d26bbd9 ast: Add type nodes
Copy all of the type classes from src/type into ast.

Required the merging of:
* type::Struct into the existing ast::Struct - ast::Struct now has a name.
* type::AccessControl into the existing ast::AccessControl enumerator - The old ast::AccessControl enumerator is now ast::AccessControl::Access

Bug: tint:724
Change-Id: Ibb950036ed551ec769c6d3d2c8fb411809cf6931
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48383
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-04-20 15:04:21 +00:00
Antonio Maiorano aea9c68de9 Move type/* files to sem/ directory
Bug: tint:724
Change-Id: I45d83d32dbce1fbee265810615c18219ef879b20
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48363
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2021-04-19 22:54:43 +00:00
Antonio Maiorano 3751fd2290 Move all classes from namespace `type` to namespace `sem`
Bug: tint:724
Change-Id: I4eeabab9b00b6b28f61645bd95d326fb48609bf0
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48362
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2021-04-19 22:51:23 +00:00
Antonio Maiorano 3aa226138e Rename type::Struct to type::StructType
This is to avoid name conflicts once we move all classes from namespace
`type` to `sem`.

Bug: tint:724
Change-Id: I23cdec636cb5bcf0bbba03ee7bb7c44252ddade7
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48361
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-04-19 21:31:43 +00:00
Antonio Maiorano cf4057be01 Rename type::Array to type::ArrayType
This is to avoid name conflicts once we move all classes from namespace
`type` to `sem`.

Bug: tint:724
Change-Id: Icc3d81ae62eb3b329ce28e78a23ea27f29c9263b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48360
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-04-19 21:13:12 +00:00
Ben Clayton 4649377d05 transform: Don't create detached AST nodes
Detached AST nodes will become an ICE, so only create nodes if they are going to be used.

Bug: tint:469
Change-Id: I29b3275a355e30c934e6e508185a19981dcc8a42
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48050
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-04-17 06:02:21 +00:00
Ben Clayton a0cf62f415 Fix all tests that shared AST nodes
This is not valid. Will become an ICE.

Bug: tint:469
Change-Id: I02c0eea16daf7d83f4d6c251e06d9cac0dfd7ce4
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47777
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-04-17 00:42:41 +00:00
Antonio Maiorano 5cd71b8c0a Rename semantic to sem
* Rename namespace semantic to sem
* Rename directory src/semantic/ to src/sem/

Bug: tint:724
Change-Id: I76383b821fbca7f1037a803c497b595a706dcb06
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48120
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-04-16 19:07:51 +00:00
Ben Clayton 648b05e4e2 Fix AttemptTintPadSymbolCollision test
This test landed simultaneously with a change that checks that storage buffers have an access qualifier, leading to broken tests.

Also fix lint issues that have crept in.

Change-Id: I4a7f0bc67d8d3e7170ddea117342a510741a495c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48040
Auto-Submit: Ben Clayton <bclayton@google.com>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
2021-04-16 10:37:34 +00:00
James Price 8cb5a23afb Automatically clone all symbols in CloneContext()
Almost all transforms should clone all symbols before doing any work,
to avoid any newly created symbols clashing with existing symbols the
source program and causing them to be renamed.

The Renamer is the exception to this, and so an optional flag is used
to prevent automatic cloning of symbols for this transform.

Bug: dawn:758
Change-Id: I84527a352825b2eaa43eabe225beb9e0999bf048
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48000
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Ben Clayton <bclayton@chromium.org>
2021-04-16 10:29:54 +00:00
Ben Clayton ed8332a0d1 writer/wgsl: Omit the newline after [[access()]] decorations
Produces ugly code for the common case.

Change-Id: I8e5b1215e19fc6461dc40b8a91922db25f9cbd76
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47764
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: James Price <jrprice@google.com>
2021-04-16 10:09:44 +00:00
Ben Clayton 1773535e1c Resolver: Validate <storage> var types
https://gpuweb.github.io/gpuweb/wgsl/#variable-declaration
Variables in the storage storage class and variables with a storage
texture type must have an access attribute applied to the store type.

https://gpuweb.github.io/gpuweb/wgsl/#module-scope-variables
A variable in the storage storage class is a storage buffer variable. Its
store type must be a host-shareable structure type with block attribute,
satisfying the storage class constraints.

Fixup tests, including those that were producing warnings about `var <in>`

The WGSL writer seems to want to put a newline after every decoration block, leading to some ugly output. I'll fix this as a separate change.

Fixes: tint:531
Fixes: tint:692
Change-Id: If09d987477247ab4a7c635f6ee6e616a06061515
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47763
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2021-04-16 09:26:14 +00:00
Ben Clayton 856a3688f7 transform: Minor changes to cleanup Dawn usage.
Move transform::Transform::Output to transform::Output.
There's no need for this to be an nested class, it stutters, and it also
prevents Dawn from forward declaring it.

Add move assignment operator to DataMap.

Change-Id: Ibe1af03abc1a872790d20ee6ec8cf18a511ea0b4
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47772
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
2021-04-16 08:35:24 +00:00
James Price fd7251bb02 Merge RenameReservedKeywords into the Renamer
Adds additional modes to the Renamer for renaming just HLSL or MSL
keywords. The sanitizers no longer rename reserved keywords
automatically, which isn't usually necessary anyway since Dawn renames
all symbols.

The tint executable automatically renames reserved keywords when
targeting HLSL and MSL. It now also has an option to rename
everything, which is useful for testing the renamer.

Change-Id: Idbfd53226805e851050024402be8d8f251b88707
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47960
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Auto-Submit: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@chromium.org>
2021-04-16 08:28:54 +00:00
James Price 0d96c1d644 transform/CanonicalizeEntryPointIO: Sort struct members
HLSL interface matching rules impose additional requirements on the
order of structure members. We now sort members such that all members
with location attributes appear first (ordered by location slot),
followed by those with builtin attributes.

Fixed: tint:710
Change-Id: I90940bcb7a5b9eeb1f50f132d406d4cf74e47ea2
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47822
Commit-Queue: James Price <jrprice@google.com>
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@chromium.org>
2021-04-14 22:51:18 +00:00
James Price 43b84d69dd transform/CanonicalizeEntryPointIO: Fix symbol renaming
Pre-clone the program's symbols at the start of the transform,
otherwise the original program's symbols may get mangled. This causes
problems for Dawn when the entry point name is changed.

Change-Id: I414c798fb5f51afe44e8b97619f77452f97f0782
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47824
Commit-Queue: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@chromium.org>
2021-04-14 22:08:48 +00:00
James Price edd4d3cc3b Rename builtin(sample_mask_{in,out}) to builtin(sample_mask)
Removes the need to pass the storage class to the SPIR-V reader
builtin mapping function.

Added a deprecation warning for sample_mask_{in,out}.

Bug: tint:715
Change-Id: I948ff2de2d5de7bd05e1c6ff45bd721c856900e3
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47743
Commit-Queue: James Price <jrprice@google.com>
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-04-14 16:44:38 +00:00
James Price 88d7edcf7a Rename builtin(frag_coord) to builtin(position)
Use the variable storage class to determine the correct builtin to use
in the SPIR-V generator.

Added a deprecation warning for frag_coord.

Bug: tint:714
Change-Id: I5ad4956f9345e2f39f4af16e84668dec345ac82e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47742
Auto-Submit: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-04-14 16:37:18 +00:00
Ben Clayton f8313e5a6e transform/BoundArrayAccessors: Fix symbol renaming
We need to pre-clone the source program's symbols before creating the symbols `min` and `arrayLength`, otherwise the original program's symbols will be suffixed with a number to make them unique.

Fixes Dawn tests that triggered this issue.

Bug: tint:712
Change-Id: Ie1cf6cbcf2050a2ce1a94acf0ae131a06f635820
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47761
Auto-Submit: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-04-14 14:29:28 +00:00
Ben Clayton 5c34060a4e transform/hlsl: Use Symbols().New() for empty entry point
And drop the leading understore, it's no longer needed.

Bug tint:712

Change-Id: Ic0ad304119ceb148984d2fa0a5e9e61f2c3a89fd
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47637
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-04-13 23:46:17 +00:00
Ben Clayton 4d349b5391 transform: s/_tint_/tint_ for reserved keywords
Bug: tint:640
Change-Id: I7525ac97d8942fffa651847d703bf37a10cbc71d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47636
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-04-13 23:44:57 +00:00
Ben Clayton a5a31d35f6 transform/EmitVertexPointSize: Use SymbolTable::New()
And clean up some code in the process.

Avoids potential symbol collisions. Simplifies the logic.

Bug: tint:711
Bug: tint:712
Change-Id: I7c41dff81e1fb2abfd3f5d3fecf625a27c42f14d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47635
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
2021-04-13 23:30:57 +00:00
Ben Clayton e6995de232 Add ProgramID feed it into all ast::Nodes
This will be used to detect accidental leaks of program objects between programs.

Bug: tint:709
Change-Id: I20f784a2c673d19a04a880b3ec91dfe2eb743bdb
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47622
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-04-13 23:27:27 +00:00
Ben Clayton f01ed13a25 transform/VertexPulling: s/_tint/tint
Don't use a leading underscore in identifiers. Tint cannot parse these, they're illegal in MSL.

Bug: tint:640
Change-Id: I6e923cf3317a646cc5f4f2a10a7a522036000c70
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47634
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-04-13 23:08:37 +00:00
Ben Clayton 93cd23c01b transform/VertexPulling: Use SymbolTable::New()
And clean up some code in the process.

Avoids potential symbol collisions. Simplifies the logic.

Bug: tint:712
Change-Id: Ibce5ccbd4c7fd45d5bf29906b5a83b3637b6cdcc
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47633
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-04-13 23:04:07 +00:00
Ben Clayton bd1597a545 transform/Renamer: Use SymbolTable::New()
Avoids potential symbol collisions. Simplifies the logic.

Bug: tint:712
Change-Id: I4416307b10f2dbe38964b6fd9342042c7e5505ec
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47632
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-04-13 22:58:07 +00:00