[LLVMbugs] [Bug 13326] New: wrong code from %

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=13326

             Bug #: 13326
           Summary: wrong code from %
           Product: new-bugs
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: regehr at cs.utah.edu
                CC: chenyang at cs.utah.edu, llvmbugs at cs.uiuc.edu
    Classification: Unclassified


regehr at home:~/z/reduce/r102$ clang -O1 small.c ; ./a.out 
76
regehr at home:~/z/reduce/r102$ clang -O small.c ; ./a.out 
254
regehr at home:~/z/reduce/r102$ cat small.c
int printf (const char *, ...);
int a = 232, b;
int
fn1 (unsigned char p1, unsigned char p2)
{
    return p1 % p2;
}

int
main ()
{
    b = fn1 (a, 78);
    printf ("%d\n", b);
    return 0;
}
regehr at home:~/z/reduce/r102$ clang -v
clang version 3.2 (trunk 160034)
Target: x86_64-unknown-linux-gnu
Thread model: posix

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