From c585a3f62adb2e491d792115af637ef75bdf489e Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Tue, 24 Oct 2006 00:02:26 +0000
Subject: [PATCH] add moveBefore/moveAfter helper methods

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31145 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/MachineBasicBlock.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/lib/CodeGen/MachineBasicBlock.cpp b/lib/CodeGen/MachineBasicBlock.cpp
index ebd492c7ac2..fcc01299cd8 100644
--- a/lib/CodeGen/MachineBasicBlock.cpp
+++ b/lib/CodeGen/MachineBasicBlock.cpp
@@ -120,6 +120,18 @@ void MachineBasicBlock::print(std::ostream &OS) const {
   }
 }
 
+void MachineBasicBlock::moveBefore(MachineBasicBlock *NewAfter) {
+  MachineFunction::BasicBlockListType &BBList =getParent()->getBasicBlockList();
+  getParent()->getBasicBlockList().splice(NewAfter, BBList, this);
+}
+
+void MachineBasicBlock::moveAfter(MachineBasicBlock *NewBefore) {
+  MachineFunction::BasicBlockListType &BBList =getParent()->getBasicBlockList();
+  MachineFunction::iterator BBI = NewBefore;
+  getParent()->getBasicBlockList().splice(++BBI, BBList, this);
+}
+
+
 void MachineBasicBlock::addSuccessor(MachineBasicBlock *succ) {
   Successors.push_back(succ);
   succ->addPredecessor(this);