Get rid of RegScavenger::backwards() before the bitrot spreads.

If we need it one day, there is nothing wrong with putting it back in.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78337 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 8 deletions

diff --git a/include/llvm/CodeGen/RegisterScavenging.h b/include/llvm/CodeGen/RegisterScavenging.h
index dbd9032c80..b0bcc6724e 100644
--- a/include/llvm/CodeGen/RegisterScavenging.h
+++ b/include/llvm/CodeGen/RegisterScavenging.h
@@ -90,20 +90,15 @@ public:
   /// passes over/within the same function.
   void initRegState();
 
-  /// forward / backward - Move the internal MBB iterator and update register
-  /// states.
+  /// forward - Move the internal MBB iterator and update register states.
   void forward();
-  void backward();
 
-  /// forward / backward - Move the internal MBB iterator and update register
-  /// states until it has processed the specific iterator.
+  /// forward - Move the internal MBB iterator and update register states until
+  /// it has processed the specific iterator.
   void forward(MachineBasicBlock::iterator I) {
     if (!Tracking && MBB->begin() != I) forward();
     while (MBBI != I) forward();
   }
-  void backward(MachineBasicBlock::iterator I) {
-    while (MBBI != I) backward();
-  }
 
   /// skipTo - Move the internal MBB iterator but do not update register states.
   ///