[llvm-branch-commits] [llvm] AMDGPU: Use GCNTargetMachine in AMDGPUCodeGenPassBuilder (PR #102805)

[Matt Arsenault via llvm-branch-commits]

arsenm wrote:

### Merge activity

* **Aug 11, 7:00 AM EDT**: @arsenm started a stack merge that includes this pull request via [Graphite](https://app.graphite.dev/github/pr/llvm/llvm-project/102805).


https://github.com/llvm/llvm-project/pull/102805