dawn-cmake/test/tint/bug/chromium/1372963.wgsl.expected.dxc.hlsl

int4 g() {
  return (0).xxxx;
}

void main() {
  g();
  return;
}
tint: Fix C++ UB when shifting abstract 0 left by >= 64 In WGSL, we can shift left abstracts by >= 64, as long as the result is representable in the data type we choose for it. When shifting 0, we can shift by any positive u32 value (result is always 0), but in C++, it's UB to shift by more than the bit width of the data type, so we need to handle this. This bug was caught by ClusterFuzz. Bug: chromium:1372963 Change-Id: I638ca190b93538908ca6472f3735627ea8531c5a Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/106266 Reviewed-by: David Neto <dneto@google.com> Commit-Queue: Antonio Maiorano <amaiorano@google.com> Reviewed-by: Dan Sinclair <dsinclair@chromium.org> Kokoro: Kokoro <noreply+kokoro@google.com> 2022-10-18 20:17:55 +00:00			`int4 g() {`
			`return (0).xxxx;`
			`}`

			`void main() {`
			`g();`
			`return;`
			`}`