[LLVMbugs] [Bug 4880] New: Assertion in instruction selector

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Fri Sep 4 01:00:23 PDT 2009


           Summary: Assertion in instruction selector
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Common Code Generator Code
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: asl at math.spbu.ru
                CC: gohman at apple.com, llvmbugs at cs.uiuc.edu

Created an attachment (id=3430)
 --> (http://llvm.org/bugs/attachment.cgi?id=3430)

Consider the attached testcase.

Running "./llc -combiner-alias-analysis -combiner-global-alias-analysis
bugpoint-reduced-simplified.bc" yields

llc: /home/asl/proj/llvm/src/lib/CodeGen/SelectionDAG/SelectionDAG.cpp:4925:
unsigned int llvm::SelectionDAG::AssignTopologicalOrder(): Assertion `SortedPos
== AllNodes.end() && "Topological sort incomplete!"' failed.

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