[llvm-commits] CVS: llvm/lib/VMCore/Dominators.cpp

[Chris Lattner]

Changes in directory llvm/lib/VMCore:

Dominators.cpp updated: 1.41 -> 1.42

---
Log message:

Expose new "recalculate" method from dominatorset



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Diffs of the changes:

Index: llvm/lib/VMCore/Dominators.cpp
diff -u llvm/lib/VMCore/Dominators.cpp:1.41 llvm/lib/VMCore/Dominators.cpp:1.42
--- llvm/lib/VMCore/Dominators.cpp:1.41	Fri Oct  4 09:45:48 2002
+++ llvm/lib/VMCore/Dominators.cpp	Tue Oct  8 14:12:08 2002
@@ -92,10 +92,15 @@
 // specified function.
 //
 bool DominatorSet::runOnFunction(Function &F) {
-  Doms.clear();   // Reset from the last time we were run...
   Root = &F.getEntryNode();
   assert(pred_begin(Root) == pred_end(Root) &&
 	 "Root node has predecessors in function!");
+  recalculate();
+  return false;
+}
+
+void DominatorSet::recalculate() {
+  Doms.clear();   // Reset from the last time we were run...
 
   // Calculate dominator sets for the reachable basic blocks...
   calculateDominatorsFromBlock(Root);
@@ -106,11 +111,10 @@
   // extra pass over the function, calculating dominator information for
   // unreachable blocks.
   //
-  for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I)
+  Function *F = Root->getParent();
+  for (Function::iterator I = F->begin(), E = F->end(); I != E; ++I)
     if (Doms[I].count(I) == 0)
       calculateDominatorsFromBlock(I);
-
-  return false;
 }