Ben Clayton f47887d207 tint/writer/msl: Generate an array<T,N> helper
And remove the WrapArraysInStructs transform.

Wrapping arrays in structures becomes troublesome for `const` arrays, as
currently WGSL does not allow `const` structures.

MSL 2.0+ has a builtin array<> helper, but we're targetting MSL 1.2, so
we have to emit our own. Fortunately, it can be done with a few lines of
templated code.

This produces significantly cleaner output.

Change-Id: Ifc92ef21e09befa252a07c856c4b5afdc51cc2e4
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/94540
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Reviewed-by: David Neto <dneto@google.com>
2022-06-24 17:01:59 +00:00

9 lines
245 B
WebGPU Shading Language

var<private> zero : array<array<i32, 3>, 2>;
var<private> init : array<array<i32, 3>, 2> = array<array<i32, 3>, 2>(array<i32, 3>(1, 2, 3), array<i32, 3>(4, 5, 6));
@compute @workgroup_size(1)
fn main() {
var v0 = zero;
var v1 = init;
}