[LLVMbugs] [Bug 14376] New: Regression: Crash in llc with asm

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Sun Nov 18 11:50:42 PST 2012


http://llvm.org/bugs/show_bug.cgi?id=14376

             Bug #: 14376
           Summary: Regression: Crash in llc with asm
           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: kai at redstar.de
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Created attachment 9563
  --> http://llvm.org/bugs/attachment.cgi?id=9563
test case

The attached .ll file crashes llc when the -O3 option is used.
Message is:
llc: LiveInterval.cpp:62: llvm::VNInfo
*llvm::LiveInterval::createDeadDef(llvm::SlotIndex, VNInfo::Allocator &):
Assertion `I->start == Def && "Cannot insert def, already live"' failed.

Happens with 3.2rc1 and trunk.

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