[llvm-commits] CVS: llvm/lib/Analysis/DataStructure/Local.cpp

[Chris Lattner]

Changes in directory llvm/lib/Analysis/DataStructure:

Local.cpp updated: 1.45 -> 1.46

---
Log message:

Fix a huge bug with handling non-pointer instructions


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Diffs of the changes:

Index: llvm/lib/Analysis/DataStructure/Local.cpp
diff -u llvm/lib/Analysis/DataStructure/Local.cpp:1.45 llvm/lib/Analysis/DataStructure/Local.cpp:1.46
--- llvm/lib/Analysis/DataStructure/Local.cpp:1.45	Fri Jan 31 22:51:55 2003
+++ llvm/lib/Analysis/DataStructure/Local.cpp	Mon Feb  3 18:59:50 2003
@@ -91,7 +91,7 @@
     void visitSetCondInst(SetCondInst &SCI) {}  // SetEQ & friends are ignored
     void visitFreeInst(FreeInst &FI);
     void visitCastInst(CastInst &CI);
-    void visitInstruction(Instruction &I) {}
+    void visitInstruction(Instruction &I);
 
   private:
     // Helper functions used to implement the visitation functions...
@@ -410,6 +410,21 @@
     }
 }
 
+
+// visitInstruction - For all other instruction types, if we have any arguments
+// that are of pointer type, make them have unknown composition bits, and merge
+// the nodes together.
+void GraphBuilder::visitInstruction(Instruction &Inst) {
+  DSNodeHandle CurNode;
+  if (isPointerType(Inst.getType()))
+    CurNode = getValueDest(Inst);
+  for (User::op_iterator I = Inst.op_begin(), E = Inst.op_end(); I != E; ++I)
+    if (isPointerType((*I)->getType()))
+      CurNode.mergeWith(getValueDest(**I));
+
+  if (CurNode.getNode())
+    CurNode.getNode()->NodeType |= DSNode::UnknownNode;
+}