[LLVMbugs] [Bug 809] NEW: llc crashes in LiveVariables::runOnMachineFunction

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Fri Jun 16 15:54:12 PDT 2006


           Summary: llc crashes in LiveVariables::runOnMachineFunction
           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: rspencer at x10sys.com

This reduced test case causes llc to crash:

void %__muldi3() {
        br bool false, label %cond_true, label %cond_next
cond_true:              ; preds = %entry
        br label %cond_next
cond_next:              ; preds = %cond_true, %entry
        ret void

This was found while attempting to build llvm-gcc4 from new SVN repository 
against LLVM CVS Head as of about 2pm today. Note that the Debug version of llc
does not crash on this input while the Release version does. Possibly there's
code in a DEBUG section that shouldn't be?

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