Cleanup redundant expression in InstCombineAndOrXor.

Summary:
The expression is redundant on both side of operator |.

detected by : http://reviews.llvm.org/D19451

Reviewers: rnk, majnemer

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D19459

llvm-svn: 267458

Author: bergeret

llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp

@@ -465,11 +465,9 @@ static unsigned getTypeOfMaskedICmp(Value* A, Value* B, Value* C,
   if (CCst && CCst->isZero()) {
     // if C is zero, then both A and B qualify as mask
     result |= (icmp_eq ? (FoldMskICmp_Mask_AllZeroes |
-                          FoldMskICmp_Mask_AllZeroes |
                           FoldMskICmp_AMask_Mixed |
                           FoldMskICmp_BMask_Mixed)
                        : (FoldMskICmp_Mask_NotAllZeroes |
-                          FoldMskICmp_Mask_NotAllZeroes |
                           FoldMskICmp_AMask_NotMixed |
                           FoldMskICmp_BMask_NotMixed));
     if (icmp_abit)