[llvm] [X86] Fix expand-fp on optnone functions (PR #156900)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,252 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; RUN: llc -mtriple=x86_64 < %s | FileCheck %s
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arsenm wrote:

Codegen tests do not belong in test/Transforms. this should just run opt with the pass 

https://github.com/llvm/llvm-project/pull/156900