[LLVMbugs] [Bug 16432] New: Bitcode file which crashes opt

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=16432

            Bug ID: 16432
           Summary: Bitcode file which crashes opt
           Product: tools
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: opt
          Assignee: unassignedbugs at nondot.org
          Reporter: alastair.donaldson at imperial.ac.uk
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 10751
  --> http://llvm.org/bugs/attachment.cgi?id=10751&action=edit
Test case exposing problem

I have compiled LLVM 3.3, checked out from:

http://llvm.org/svn/llvm-project/llvm/tags/RELEASE_33/final

and compiled with Visual Studio 10 in Debug mode, under Windows 7.

Running opt on the attached bitcode file causes opt to crash, printing the
following:

0x01235862 (0x00000001 0x00D68C38 0x00D68F08 0x00C1FADC)
0x014D885C (0x00000000 0x00D68C38 0x00F18C98 0x0122CF3B)
0x0122CC11 (0x00000001 0x01A1D84C 0x00000001 0x00000000)
0x01128064 (0x00000002 0x00F11B20 0x00F12170 0xE69D83C3)
0x017AFF44 (0x7EFDE000 0x00C1FD34 0x779B9EF2 0x7EFDE000),
??0_Mutex at std@@QAE at W4_
Uninitialized at 1@@Z() + 0x2EE bytes(s)
0x774033AA (0x7EFDE000 0x761149A7 0x00000000 0x00000000), BaseThreadInitThunk()
+ 0x12 bytes(s)
0x779B9EF2 (0x017B0065 0x7EFDE000 0x00000000 0x00000000),
RtlInitializeException
Chain() + 0x63 bytes(s)
0x779B9EC5 (0x017B0065 0x7EFDE000 0x00000000 0x00000000),
RtlInitializeException
Chain() + 0x36 bytes(s)

Any advice on what's wrong here would be appreciated.

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