[LLVMbugs] [Bug 4662] New: Assertion `Traits::getNext(NodePtr) != 0 && " Dereferencing end()!"' failed. with -tailduplicate

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=4662

           Summary: Assertion `Traits::getNext(NodePtr) != 0 &&
                    "Dereferencing end()!"' failed. with -tailduplicate
           Product: new-bugs
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Keywords: regression
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: tomas.l.olsen at gmail.com
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=3268)
 --> (http://llvm.org/bugs/attachment.cgi?id=3268)
bitcode that shows -tailduplicate problem

This seems to be a regression, attaching bitcode to reproduce like so:

opt foo.bc -tailduplicate -o=fooopt.bc -f


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