[llvm] [Peephole] Fix "Use not jointly dominated by defs." crash (PR #202216)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,37 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-- -verify-machineinstrs | FileCheck %s
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arsenm wrote:

```suggestion
; RUN: llc -mtriple=x86_64-- < %s | FileCheck %s
```

https://github.com/llvm/llvm-project/pull/202216