diff options
Diffstat (limited to 'lib/VMCore/ConstantFold.cpp')
| -rw-r--r-- | lib/VMCore/ConstantFold.cpp | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/lib/VMCore/ConstantFold.cpp b/lib/VMCore/ConstantFold.cpp index 3cd4a9f78b..7bf4f094e8 100644 --- a/lib/VMCore/ConstantFold.cpp +++ b/lib/VMCore/ConstantFold.cpp @@ -1248,21 +1248,6 @@ static ICmpInst::Predicate evaluateICmpRelation(LLVMContext &Context, Constant::getNullValue(CE1Op0->getType()), sgnd); } - - // If the dest type is a pointer type, and the RHS is a constantexpr cast - // from the same type as the src of the LHS, evaluate the inputs. This is - // important for things like "icmp eq (cast 4 to int*), (cast 5 to int*)", - // which happens a lot in compilers with tagged integers. - if (ConstantExpr *CE2 = dyn_cast<ConstantExpr>(V2)) - if (CE2->isCast() && isa<PointerType>(CE1->getType()) && - CE1->getOperand(0)->getType() == CE2->getOperand(0)->getType() && - CE1->getOperand(0)->getType()->isInteger()) { - bool sgnd = isSigned; - if (CE1->getOpcode() == Instruction::ZExt) isSigned = false; - if (CE1->getOpcode() == Instruction::SExt) isSigned = true; - return evaluateICmpRelation(Context, CE1->getOperand(0), - CE2->getOperand(0), sgnd); - } break; case Instruction::GetElementPtr: |