[llvm-bugs] [Bug 46475] New: Failure to optimize xor pattern to xor

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=46475

            Bug ID: 46475
           Summary: Failure to optimize xor pattern to xor
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Scalar Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: gabravier at gmail.com
                CC: llvm-bugs at lists.llvm.org

bool f(bool a, bool b)
{
    return ((a & b) ^ b) | ((a & b) ^ a);
}

This can be optimized to `return a ^ b;`. This transformation is done by GCC,
but not by LLVM.

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