tree 09f46431d5372be4a95b18f5fed64340055e1bb1
parent 84563873016b4777d76faf6be1d7bca2bcde40ca
author dan sinclair <dsinclair@chromium.org> 1730506337 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1730506337 +0000

[ir] Add concept of overrides to the IR.

This CL adds an `override` instruction into the IR. The `program_to_ir`
will convert an `Override` as needed into the given instruction.

Note, this will then immediately fail validation as only `var` is
currently permitted in the root block.

Bug: 374971092
Change-Id: I40b4bd33e020a222707a8cb9c3584abe8b327112
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/212094
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: dan sinclair <dsinclair@chromium.org>