[llvm] [X86][Atomic] Fix bts/btr/btc regression caused by InstCombine trunc to i1 (PR #200667)

[Phoebe Wang via llvm-commits]

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@@ -0,0 +1,61 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: opt < %s -O2 | llc -mtriple=x86_64-unknown-linux-gnu | FileCheck %s --check-prefixes=X64
+; RUN: opt < %s -O2 | llc -mtriple=i686-unknown-linux-gnu | FileCheck %s --check-prefixes=X86
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phoebewang wrote:

This doesn't look necessary. If it's not covered in the existing tests, maybe more the opt test to Transforms?

https://github.com/llvm/llvm-project/pull/200667