diff options
Diffstat (limited to 'lib/Analysis/InstructionSimplify.cpp')
| -rw-r--r-- | lib/Analysis/InstructionSimplify.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Analysis/InstructionSimplify.cpp b/lib/Analysis/InstructionSimplify.cpp index 9d5b74c8cf..88a2c53e80 100644 --- a/lib/Analysis/InstructionSimplify.cpp +++ b/lib/Analysis/InstructionSimplify.cpp @@ -1593,10 +1593,11 @@ static Value *SimplifyICmpInst(unsigned Predicate, Value *LHS, Value *RHS, // the compare, and if only one of them is then we moved it to RHS already. Value *LHSPtr = LHS->stripPointerCasts(); Value *RHSPtr = RHS->stripPointerCasts(); + if (LHSPtr == RHSPtr) + return ConstantInt::get(ITy, CmpInst::isTrueWhenEqual(Pred)); if (isa<AllocaInst>(LHSPtr) && (isa<GlobalValue>(RHSPtr) || isa<AllocaInst>(RHSPtr) || isa<ConstantPointerNull>(RHSPtr))) - // We already know that LHS != RHS. return ConstantInt::get(ITy, CmpInst::isFalseWhenEqual(Pred)); // If we are comparing with zero then try hard since this is a common case. |