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>
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>
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>
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>
Add a special-case for pointer-to-array types, where the * and the
variable name need to be enclosed in parentheses in between the array
element type and the size.
Move the `const` qualifier to before the array size.
Add E2E tests to cover all non-handle types used in various places.
Fixed: tint:822
Change-Id: I93b7d6867f92397aa47838ab2c94530b6e634617
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51823
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>
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>
James Price
Sarah
Ben Clayton