[LLVMbugs] [Bug 10356] New: LICM doesn't preserve scalar-evolution correctly

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Wed Jul 13 20:25:55 PDT 2011


           Summary: LICM doesn't preserve scalar-evolution correctly
           Product: new-bugs
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: sharparrow1 at yahoo.com
                CC: llvmbugs at cs.uiuc.edu

Per summary; moving an instruction out of a loop while preserving SCEV requires
a call to ScalarEvolution::forgetValue(), but LICM doesn't call it at the
moment.  Noting here so I don't forget about it.

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