[LLVMbugs] [Bug 23065] New: Incorrect shuffle vector optimization caused by commit r231380

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=23065

            Bug ID: 23065
           Summary: Incorrect shuffle vector optimization caused by commit
                    r231380
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Common Code Generator Code
          Assignee: unassignedbugs at nondot.org
          Reporter: liujiangning1 at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Commit r231380 caused a bug for the case attached. Optimization levels -O2 and
-O0 have different results,

O0 : -2147418112
O2 : -2147369100

Thanks,
-Jiangning

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