tree 0a26d9712d952cf1cc11fb14923a72966bcad94f
parent e1fd66bdcaf59dbedb4b2261ec4829b202dc32c6
author dan sinclair <dsinclair@chromium.org> 1729816258 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1729816258 +0000

[hlsl][ir] Skip promoting lets to lets

In the `PromoteInitializers` transform, if a let is used as a value, we
may determine that the value needs to be hoisted to a new let. But, this
ends up just creating a let of a let. Skip creating the duplicate let in
this case.

Bug: 369450791
Change-Id: I45178ec0029b13019314ab189df8073781a9dd9b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/211817
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: dan sinclair <dsinclair@chromium.org>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>