commit 6ce8eb4b3731bd27e2940842e9dafc3bf2e07963
author John Stiles <johnstiles@google.com> Fri Jun 09 12:02:47 2023 -0400
committer SkCQ <skcq-be@skia-corp.google.com.iam.gserviceaccount.com> Fri Jun 09 18:53:01 2023 +0000
tree ccc5a5581faf7b40bb95f29bfe38749d001089b6
parent 28b5df73199707f7d3c54275b49d6b1361dbf0c5

Improve WGSL codegen for break-if statements.

Previously, we would always emit `break if !(test-expression);`
with a leading logical-not hard-coded in the output. This would
generally lead to code like `break if !(i <= 4);`

Now, we will apply the logical-not to the IR, simplifying the
expression where possible. This allows us to emit the simpler
form `break if i > 4;` instead.

Bug: skia:14369
Change-Id: Ibc2b804ad96e2c3417a749940e94a1f9ef11b927
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/709019
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Arman Uguray <armansito@google.com>