Make sure the two arguments of a setcc instruction point to the same node.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20462 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/DataStructure/Local.cpp b/lib/Analysis/DataStructure/Local.cpp
index 070b695..20f45a7 100644
--- a/lib/Analysis/DataStructure/Local.cpp
+++ b/lib/Analysis/DataStructure/Local.cpp
@@ -112,7 +112,7 @@
void visitStoreInst(StoreInst &SI);
void visitCallInst(CallInst &CI);
void visitInvokeInst(InvokeInst &II);
- void visitSetCondInst(SetCondInst &SCI) {} // SetEQ & friends are ignored
+ void visitSetCondInst(SetCondInst &SCI);
void visitFreeInst(FreeInst &FI);
void visitCastInst(CastInst &CI);
void visitInstruction(Instruction &I);
@@ -325,6 +325,13 @@
Dest.mergeWith(getValueDest(*SI.getOperand(2)));
}
+void GraphBuilder::visitSetCondInst(SetCondInst &SCI) {
+ if (!isPointerType(SCI.getOperand(0)->getType()) ||
+ isa<ConstantPointerNull>(SCI.getOperand(1))) return; // Only pointers
+ ScalarMap[SCI.getOperand(0)].mergeWith(getValueDest(*SCI.getOperand(1)));
+}
+
+
void GraphBuilder::visitGetElementPtrInst(User &GEP) {
DSNodeHandle Value = getValueDest(*GEP.getOperand(0));
if (Value.isNull())