[llvm-bugs] [Bug 51305] New: [InstCombine] Preferred way to mask and splat a single low bit

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=51305

            Bug ID: 51305
           Summary: [InstCombine] Preferred way to mask and splat a single
                    low bit
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Scalar Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: lebedev.ri at gmail.com
                CC: llvm-bugs at lists.llvm.org

While looking at xor part of https://bugs.llvm.org/show_bug.cgi?id=51259
We have two patterns that we don't canonicalize either way:
https://alive2.llvm.org/ce/z/jfCViF
Which one do we prefer? Shifty?

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