[LLVMbugs] [Bug 1817] New: Instcombine assertion

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Thu Nov 22 13:54:52 PST 2007


           Summary: Instcombine assertion
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: Scalar Optimizations
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: asl at math.spbu.ru
                CC: llvmbugs at cs.uiuc.edu

Created an attachment (id=1262)
 --> (http://llvm.org/bugs/attachment.cgi?id=1262)
Bytecode in question

This one was caught by pypy folks. It looks like some internal stuff was
corrupted. valgrind is clean. Steps to reproduce:

 opt foo.bc -inline -tailduplicate -scalarrepl -gvn -instcombine -simplifycfg

Bugpoint wasn't be able to reduce stuff: it was fooled by another assertion
caught after removing of global initializers.

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