[llvm-branch-commits] [clang] [llvm] release/23.x: Reland "[HIPSPV] Add in-tree SPIR-V backend support for chipStar" (#213052) (PR #214531)

[Yaxun Liu via llvm-branch-commits]

yxsamliu wrote:

@dyung I am not the original author of the change; @pvelesko is. I only cherry-picked it to release/23.x and resolved the conflicts.

I checked the conflict resolutions again. The backport keeps the same intended behavior as the main-branch change: chipStar uses the in-tree SPIR-V backend by default, falls back to llvm-spirv when needed, and keeps the HIPSPV device compile job layout unchanged.

The only main-branch difference I left out is an unrelated HIPSPV debug-info change that is not on release/23.x.

https://github.com/llvm/llvm-project/pull/214531