[llvm] Optimized Constant Xor And And Not Operation (PR #161784)

[Simon Pilgrim via llvm-commits]

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@@ -0,0 +1,63 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+bmi < %s | FileCheck %s
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RKSimon wrote:

test without bmi as well

https://github.com/llvm/llvm-project/pull/161784