From: Chris Lattner <sabre@nondot.org>
Date: Thu, 19 Feb 2004 18:28:22 +0000 (+0000)
Subject: ADd a method for when an instruction moves
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=da8ab2ea451676f7093dc272aaaedf113b58f6f9;p=oota-llvm.git

ADd a method for when an instruction moves


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11626 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/CodeGen/LiveVariables.h b/include/llvm/CodeGen/LiveVariables.h
index 454205afbe1..b0d11cc4d9a 100644
--- a/include/llvm/CodeGen/LiveVariables.h
+++ b/include/llvm/CodeGen/LiveVariables.h
@@ -167,6 +167,12 @@ public:
   //===--------------------------------------------------------------------===//
   //  API to update live variable information
 
+  /// instructionChanged - When the address of an instruction changes, this
+  /// method should be called so that live variables can update its internal
+  /// data structures.  This removes the records for OldMI, transfering them to
+  /// the records for NewMI.
+  void instructionChanged(MachineInstr *OldMI, MachineInstr *NewMI);
+
   /// addVirtualRegisterKilled - Add information about the fact that the
   /// specified register is killed after being used by the specified
   /// instruction.