[llvm-bugs] [Bug 34874] New: [X86] Should we favor MOVSS/MOVSD over BLENDPS/BLENDPD when optimizing for size

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https://bugs.llvm.org/show_bug.cgi?id=34874

            Bug ID: 34874
           Summary: [X86] Should we favor MOVSS/MOVSD over BLENDPS/BLENDPD
                    when optimizing for size
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: craig.topper at gmail.com
                CC: llvm-bugs at lists.llvm.org

If optimizing for size it might make sense to prefer MOVSS/MOVSD over
BLENDPS/PD when the blend immediate is 1.

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