don't bother handling non-canonical icmp's
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121676 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/SimplifyCFG.cpp b/lib/Transforms/Utils/SimplifyCFG.cpp
index d3181b1..a1e7486 100644
--- a/lib/Transforms/Utils/SimplifyCFG.cpp
+++ b/lib/Transforms/Utils/SimplifyCFG.cpp
@@ -306,11 +306,10 @@
Values.push_back(C);
return Inst->getOperand(0);
}
- if (ConstantInt *C = GetConstantInt(Inst->getOperand(0), TD)) {
- Values.push_back(C);
- return Inst->getOperand(1);
- }
- } else if (Inst->getOpcode() == Instruction::Or) {
+ return 0;
+ }
+
+ if (Inst->getOpcode() == Instruction::Or) {
if (Value *LHS = GatherConstantSetEQs(Inst->getOperand(0), Values, TD))
if (Value *RHS = GatherConstantSetEQs(Inst->getOperand(1), Values, TD))
if (LHS == RHS)
@@ -329,16 +328,15 @@
if (Inst == 0) return 0;
if (Inst->getOpcode() == Instruction::ICmp &&
- cast<ICmpInst>(Inst)->getPredicate() == ICmpInst::ICMP_NE) {
+ cast<ICmpInst>(Inst)->getPredicate() == ICmpInst::ICMP_NE) {
if (ConstantInt *C = GetConstantInt(Inst->getOperand(1), TD)) {
Values.push_back(C);
return Inst->getOperand(0);
}
- if (ConstantInt *C = GetConstantInt(Inst->getOperand(0), TD)) {
- Values.push_back(C);
- return Inst->getOperand(1);
- }
- } else if (Inst->getOpcode() == Instruction::And) {
+ return 0;
+ }
+
+ if (Inst->getOpcode() == Instruction::And) {
if (Value *LHS = GatherConstantSetNEs(Inst->getOperand(0), Values, TD))
if (Value *RHS = GatherConstantSetNEs(Inst->getOperand(1), Values, TD))
if (LHS == RHS)