[LLVMbugs] [Bug 3250] New: ice: shiftAmt <= BitWidth && "Invalid shift amount"

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=3250

           Summary: ice: shiftAmt <= BitWidth && "Invalid shift amount"
           Product: new-bugs
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: regehr at cs.utah.edu
                CC: llvmbugs at cs.uiuc.edu


Seen using r61306 on Ubuntu Hardy on x86.

regehr at john-home:~/volatile/tmp86$ llvm-gcc -O1 small.c
cc1: /home/regehr/llvm/include/llvm/ADT/APInt.h:681: llvm::APInt
llvm::APInt::shl(uint32_t) const: Assertion `shiftAmt <= BitWidth && "Invalid
shift amount"' failed.
small.c:21: internal compiler error: Aborted
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.

regehr at john-home:~/volatile/tmp86$ cat small.c

unsigned
safe_sub_func_short_u_u (short _ui1, short _ui2)
{
  return -_ui2;
}

unsigned g_115;
unsigned
func_106 (int p_107)
{
  if (safe_sub_func_short_u_u
      (1,
       0 ? 1 : 0 ? 1 : 1 >= sizeof (unsigned) ? 0 ? 1 : +1 : (unsigned) (0 >
                                                                        
9223372036854775807LL
                                                                         ? 1 :
                                                                        
safe_div_
                                                                        
(p_107,
                                                                          1))
       >> (g_115 == 1 == 0 ? -9L : (-9L / (g_115 == 1)))))
    func_120 (1);
}


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