[llvm-commits] CVS: llvm/include/llvm/CodeGen/SelectionDAG.h

[Chris Lattner]

Changes in directory llvm/include/llvm/CodeGen:

SelectionDAG.h updated: 1.54 -> 1.55
---
Log message:

Add a new version of ReplaceAllUsesWith, make the comments more useful.


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Diffs of the changes:  (+4 -1)

 SelectionDAG.h |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletion(-)


Index: llvm/include/llvm/CodeGen/SelectionDAG.h
diff -u llvm/include/llvm/CodeGen/SelectionDAG.h:1.54 llvm/include/llvm/CodeGen/SelectionDAG.h:1.55
--- llvm/include/llvm/CodeGen/SelectionDAG.h:1.54	Fri Aug 26 12:14:27 2005
+++ llvm/include/llvm/CodeGen/SelectionDAG.h	Fri Aug 26 13:35:58 2005
@@ -279,8 +279,11 @@
   }
   
   /// ReplaceAllUsesWith - Modify anything using 'From' to use 'To' instead.
-  /// This can cause recursive merging of nodes in the DAG.
+  /// This can cause recursive merging of nodes in the DAG.  Use the first
+  /// version if 'From' is known to have a single result, use the second
+  /// if you have two nodes with identical results, use the third otherwise.
   ///
+  void ReplaceAllUsesWith(SDOperand From, SDOperand Op);
   void ReplaceAllUsesWith(SDNode *From, SDNode *To);
   void ReplaceAllUsesWith(SDNode *From, const std::vector<SDOperand> &To);