From 26005b1b672aebd437edc561d381c5dd19a03ddb Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Fri, 26 Aug 2005 18:35:58 +0000 Subject: [PATCH] Add a new version of ReplaceAllUsesWith, make the comments more useful. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23086 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/CodeGen/SelectionDAG.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/include/llvm/CodeGen/SelectionDAG.h b/include/llvm/CodeGen/SelectionDAG.h index 97934a536fe..27331db1bb0 100644 --- a/include/llvm/CodeGen/SelectionDAG.h +++ b/include/llvm/CodeGen/SelectionDAG.h @@ -279,8 +279,11 @@ public: } /// 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 &To); -- 2.34.1