[LLVMbugs] [Bug 14069] New: Assertion failed: (OldCount != 0 && "Unreachable code") in ARC

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=14069

             Bug #: 14069
           Summary: Assertion failed: (OldCount != 0 && "Unreachable
                    code") in ARC
           Product: libraries
           Version: trunk
          Platform: Macintosh
        OS/Version: MacOS X
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Scalar Optimizations
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: compnerd at compnerd.org
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Created attachment 9334
  --> http://llvm.org/bugs/attachment.cgi?id=9334
test.m

It seems that it is possible to cause LLVM to crash during the optimization
phase of ARC.  From a quick perusal of the code, it seems that there may be a
mismatch in the retain/release counting.  The attachment contains both the
command line options used for the compilation/optimization pass as well as a
simple test case which reproduces the issue.

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