tree a0a0a3bd8bfdb2a8bad920494dd22c5ff6a663b0
parent 936e555875e053a28d07340727adba72c600f768
author James Price <jrprice@google.com> 1754927592 -0700
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1754927592 -0700

[spirv-reader] Build swizzles for consecutive shuffle accesses

For an OpVectorShuffle that accesses both vectors, this allows us to
produce swizzles for consecutive indices that fall within the same
vector, which can significantly reduce the size of the generated WGSL
for some shaders.

Fixed: 437398335
Change-Id: I09a6b9eb60ad7314e32150869a8910e9b5fbb430
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/256734
Commit-Queue: James Price <jrprice@google.com>
Reviewed-by: dan sinclair <dsinclair@chromium.org>