[LLVMbugs] [Bug 12887] New: Another clang segmentation fault

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=12887

             Bug #: 12887
           Summary: Another clang segmentation fault
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: merkil at savhon.org
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Clang as of 157108 segfaults while compiling this simple testcase (at -O3).

$ cat file.c
unsigned a, b, c;

void func(void)
{
    while(1)
    {
    char d;

        c = a ? d : 0;
        d += b;
    }
}

$ ~/clang/build/Release+Asserts/bin/clang -O3 -w file.c
clang: error: unable to execute command: Segmentation fault
clang: error: clang frontend command failed due to signal (use -v to see
invocation)
clang: note: diagnostic msg: Please submit a bug report to
http://llvm.org/bugs/ and include command line arguments and all diagnostic
information.
clang: note: diagnostic msg: Preprocessed source(s) and associated run
script(s) are located at:
clang: note: diagnostic msg: /tmp/file-L57Fec.i
clang: note: diagnostic msg: /tmp/file-L57Fec.sh

Hope that helps :)

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