Previous logic relied on the fact that for most operations, for a given
lhs type, there was exactly one rhs type allowed, except for
multiplication. This is no longer true in the spec, so making this test
work is more complex now. Instead, we simplify the test by having it
take the cartesian product of all possible (type * type * op), and
skipping any triplet not found in the all_valid_cases table.
Bug: tint:376
Change-Id: Icc76158823630e34dc8f25dfb0a0827545693108
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/52322
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
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>
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>
- Translates from OpImageSampleDrefExplicitLod, but the Lod must
be a constant 0, or the reader issues an error.
The requirement for Lod 0 is a constraint from Metal, inherited
by WGSL.
Fixed: tint:425, tint:482
Change-Id: I8fdf10dbd9c5ac3e24398519a28202c84677c38d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51803
Commit-Queue: David Neto <dneto@google.com>
Auto-Submit: David Neto <dneto@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Inline the `continuing` block in the places where `continue` is called.
Simplifies the emission, and fixes emission of `let` statements in the loop.
Also fix random indenting of intrinsic functions.
Fixed: tint:744
Fixed: tint:818
Change-Id: I06994dbc724bc646e0435a1035b00760eaf5f5ab
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51784
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@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>
The special-case for zero-valued constructors is unnecessary, as an
empty initializer list already correctly zero-initializes for all
types. This was causing an additional {} to be emitted for empty
structures, which the MSL compiler rejects.
Fixed: tint:821
Change-Id: Ib48c73eadef15b517e14b248229ecfbbfeb13f81
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51822
Commit-Queue: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
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>
Generate an OpSpecConstantComposite instruction decorated with the
WorkgroupSize builtin. Only support a single stage with an overridable
workgroup size.
Bug: tint:713
Change-Id: I139123c0af8326fcbd796cb2fc9d223882206e19
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51263
Commit-Queue: James Price <jrprice@google.com>
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Change the type of the values in an ast::WorkgroupDecoration to be
ast::Expression nodes, so that they can represent both
ast::ScalarExpression (literal) and ast::IdentifierExpression
(module-scope constant).
The Resolver processes these nodes to produce a uint32_t for the
default value on each dimension, and captures a reference to the
module-scope constant if it is overridable (which will soon be used by
the inspector and backends).
The WGSL parser now uses `primary_expression` to parse arguments to
workgroup_size.
Also added some WorkgroupSize() helpers to ProgramBuilder.
Bug: tint:713
Change-Id: I44b7b0021b925c84f25f65e26dc7da6b19ede508
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51262
Commit-Queue: James Price <jrprice@google.com>
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
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>
