[LLVMbugs] [Bug 1556] NEW: scalarrepl miscompiles TargetData::setAlignment

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=1556

           Summary: scalarrepl miscompiles TargetData::setAlignment
           Product: libraries
           Version: trunk
          Platform: Macintosh
        OS/Version: MacOS X
            Status: NEW
          Severity: critical
          Priority: P2
         Component: Scalar Optimizations
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: evan.cheng at apple.com


llvm-gcc compiled llc cannot even compile hello world (x86 Mac OS X):

TargetData.cpp:295: failed assertion `BestMatchIdx != -1 && "Didn't find
alignment info for this datatype!"'
Abort trap

I tracked this down to scalarrepl miscompiling setAlignment.



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