[LLVMbugs] [Bug 6929] New: possible wrong code bug

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=6929

           Summary: possible wrong code bug
           Product: new-bugs
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: regehr at cs.utah.edu
                CC: llvmbugs at cs.uiuc.edu, chenyang at cs.utah.edu


Created an attachment (id=4734)
 --> (http://llvm.org/bugs/attachment.cgi?id=4734)
failure-inducing C code

We think "1" is the right answer.

[regehr at gamow tmp409]$ clang -O small.c -o small
[regehr at gamow tmp409]$ ./small
1
[regehr at gamow tmp409]$ clang -Os small.c -o small
[regehr at gamow tmp409]$ ./small
0
[regehr at gamow tmp409]$ clang -v
clang version 1.5 (trunk 102243)
Target: x86_64-unknown-linux-gnu
Thread model: posix

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