Since overrides can be used to size workgroup arrays and also as
initializers to module-scope variables, we cannot just consider
overrides that are directly referenced in the shader functions.
This change makes the Resolver track references to overrides whilst
resolving array types and module-scope variable declarations, so that
they are included in the set of overrides reported by the Inspector in
these scenarios.
Fixed: tint:1762
Change-Id: If7501abf3ddcb87a87134ddd578aa4904d204de6
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/110460
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
Auto-Submit: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Track reads and writes to pointer parameters for each function in the
Resolver, as well as accesses to module-scope variables. At function
call sites, check the root identifiers of each pointer argument to
determine if problematic aliasing occurs.
The MSL backend passes pointers to sub-objects to functions when
handling workgroup storage variables, which triggers the alias
analysis. Add a validation override for this scenario.
Bug: tint:1675
Change-Id: I81a40d1309df65521cc5ad39764d6a09a260f51e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/110167
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
Discard statements no longer affect the behavior or uniformity
analysis. Update the resolver, validator, and several tests to reflect
this.
Some E2E tests were removed as they had loops that are now considered
to be infinite.
Use the DemoteToHelper transform to emulate the correct semantics on
platforms where discard is (or may) terminate the invocation in a
manner that would affect derivative operations.
We no longer need the UnwindDiscardFunctions transform for HLSL, which
already implements the correct semantics. However, we still run the
DemoteToHelper transform for the HLSL backend due to issues with FXC's
handling of discard statements (see crbug.com/tint/1118).
Fixed: tint:1723
Change-Id: Ib49ff187919ae81c4af8675e1b66acd57e2ff7d2
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/109003
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
Replace the ShouldRun() method with Apply() which will do the
transformation if it needs to be done, otherwise returns
'SkipTransform'.
This reduces a bunch of duplicated scanning between the old ShouldRun()
and Transform().
This change also adjusts code style to make the transforms more
consistent.
Change-Id: I9a6b10cb8b4ed62676b12ef30fb7764d363386c6
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/107681
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
A new HoistToDeclBefore::InsertBefore() overload that takes a statement
builder. Required for supporting multiple clones.
Remove Apply() - it was API smell that wasn't needed.
Spring-clean the implementation
Change-Id: If448d2e1945ad6d988d1bdb30487d89efced2f0e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/104043
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
This CL make transform AddBlockAttribute always try to wrap types used
by buffer variables into a struct, in order to generate valid GLSL code
for assigning one buffer struct variable to another buffer struct
variable.
Fixed: tint:1735
Change-Id: I009d8a9ca7ecea1dc0ad6164275c964a18acb33f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/108023
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
Attempting to paper over all the MSL standard library holes for packed_vector in the MSL writer added complexity to the writer, produced messy output, and didn't actually catch all the cases where casts were needed.
Add a new PackedVec3 transform that applies the packed_vector -> vec casts in a smarter, more precise way.
Fixed: tint:1534
Change-Id: I73ce7e5a62fbc9cb04e1093133070f5fb8965dce
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/107340
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
This is a reland of commit 63463c2f77
Original change's description:
> tint::transform::VertexPulling: require SingleEntryPoint
>
> This change the vertex pulling transform to look for the single vertex
> entry point in the module, instead of taking the entry point name in the
> config. This is necessary because the renamer needs to run before
> VertexPulling so that builtins like min() don't end up referring to the
> input WGSL. Putting the renamer before VertexPulling makes the config
> entry point name no longer match.
>
> Bug: dawn:1583
> Change-Id: I4c96eb83518e0d6fe8ce23b37e238f4a890eeb2f
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/107080
> Commit-Queue: Corentin Wallez <cwallez@chromium.org>
> Reviewed-by: Ben Clayton <bclayton@google.com>
Bug: dawn:1583
Change-Id: Ida4ac03003dff95c26d7b2bff82f4717c90c9691
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/107320
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
This change the vertex pulling transform to look for the single vertex
entry point in the module, instead of taking the entry point name in the
config. This is necessary because the renamer needs to run before
VertexPulling so that builtins like min() don't end up referring to the
input WGSL. Putting the renamer before VertexPulling makes the config
entry point name no longer match.
Bug: dawn:1583
Change-Id: I4c96eb83518e0d6fe8ce23b37e238f4a890eeb2f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/107080
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
This CL refactor unittests in std140_test.cc, and add exhaustive
parameterized unittests in std140_exhaustive_test.cc. In std140_test.cc,
only test Std140 transform result for `mat2x2<f32>` for matrix used as
array element type and `mat3x2<f32>` otherwise, and keep the source and
expected programs as plain WGSL code to ensure the readablity. In
std140_exhaustive_test.cc, all matrix shape and different constant index
are tested using parameterized WGSL code, at the cost of readablity.
This CL prepares for supporting f16 in Std140 transform by allowing
testing all shape of f16 matrix as well by simply adding parameters.
Bug: tint:1473, tint:1502
Change-Id: Ib2ef5bd806ee61eab04d73a415ba62c2191e2a7e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/104282
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
