Add some comments explaining what MVT and EVT are, and how they differ.

[oota-llvm.git] / include / llvm / CodeGen / MachineDominators.h

diff --git a/include/llvm/CodeGen/MachineDominators.h b/include/llvm/CodeGen/MachineDominators.h
index 086528aaf57c37463849e65a877769349f0dbeef..ab944a2335f7618e5592199b309572b8ca8aa89f 100644 (file)
--- a/include/llvm/CodeGen/MachineDominators.h
+++ b/include/llvm/CodeGen/MachineDominators.h
@@ -145,7 +145,7 @@ public:
   }
   
   /// eraseNode - Removes a node from  the dominator tree. Block must not
-  /// domiante any other blocks. Removes node from its immediate dominator's
+  /// dominate any other blocks. Removes node from its immediate dominator's
   /// children list. Deletes dominator node associated with basic block BB.
   inline void eraseNode(MachineBasicBlock *BB) {
     DT->eraseNode(BB);
@@ -156,8 +156,13 @@ public:
   inline void splitBlock(MachineBasicBlock* NewBB) {
     DT->splitBlock(NewBB);
   }
-  
-  
+
+  /// isReachableFromEntry - Return true if A is dominated by the entry
+  /// block of the function containing it.
+  bool isReachableFromEntry(MachineBasicBlock *A) {
+    return DT->isReachableFromEntry(A);
+  }
+
   virtual void releaseMemory();
   
   virtual void print(raw_ostream &OS, const Module*) const;