tree 7a7bfac8850e6e947b1c92d104d0f311372605c5
parent cef35b16b3150563ce59f1e98dded5a046293088
author James Price <jrprice@google.com> 1691589896 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1691589896 +0000

[ir] Fix MergeReturn for trailing returns

Always create a new if-continue-execution instruction when the
subsequent instruction is a return that has a value. Otherwise, the
return gets folded into the existing if-continue-execution block
without being guarded, and then overwrites the return value.

Bug: tint:1906
Change-Id: I638c430a342f8e148a6ab8e449357fea3ccfd63e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/145580
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Auto-Submit: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>