[llvm] [X86] Fold MOVAPS+SHUFPS into PSHUFD to eliminate redundant copies when … (PR #212626)

[Simon Pilgrim via llvm-commits]

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@@ -0,0 +1,174 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64    | FileCheck %s --check-prefixes=SSE2
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RKSimon wrote:

you can probably add a CHECK common prefix:
```suggestion
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64    | FileCheck %s --check-prefixes=CHECK,SSE2
```
etc.

https://github.com/llvm/llvm-project/pull/212626