[LLVMbugs] [Bug 9427] New: Crash in RegReductionPQBase::ScheduledNode

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=9427

           Summary: Crash in RegReductionPQBase::ScheduledNode
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Common Code Generator Code
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: rafael.espindola at gmail.com
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=6293)
 --> (http://llvm.org/bugs/attachment.cgi?id=6293)
bitcode testcase

The attached case crashes with:


$ llc bugpoint-reduced-simplified.bc  -o foo.s

0  llc               0x00000001008c48c2 PrintStackTrace(void*) + 34
1  llc               0x00000001008c4ef9 SignalHandler(int) + 857
2  libSystem.B.dylib 0x00007fff81dbd67a _sigtramp + 26
3  llc               0x0000000100000040
4  llc               0x000000010045b7d1 (anonymous
namespace)::RegReductionPQBase::ScheduledNode(llvm::SUnit*) + 257
5  llc               0x000000010045fa16 (anonymous
namespace)::ScheduleDAGRRList::Schedule() + 2278

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