[LLVMbugs] [Bug 365] NEW: [asmwriter] Asm writer segfaults if an instruction is not embedded into a function

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.cs.uiuc.edu/bugs/show_bug.cgi?id=365

           Summary: [asmwriter] Asm writer segfaults if an instruction is
                    not embedded into a function
           Product: libraries
           Version: trunk
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Core LLVM classes
        AssignedTo: rspencer at x10sys.com
        ReportedBy: sabre at nondot.org


As mentioned in the summary.  This is not good, this severely impacts debugability.

It would be fine to print "badref" or something when a reference can't be
resolved due to the instruction not being in an function, but it should not
segfault.  To reproduce, run 'opt -instcombine -debug foo.bc' on something that
instruction combining combines.

This is a regression from LLVM 1.2.

-Chris



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