From 907cc8f38df212a87a6028682d91df01ba923f4f Mon Sep 17 00:00:00 2001
From: Lang Hames <lhames@gmail.com>
Date: Fri, 27 Jan 2012 22:36:19 +0000
Subject: Add a "moveInstr" method to LiveIntervals. This can be used to move
 instructions around within a basic block while maintaining live-intervals.

Updated ScheduleTopDownLive in MachineScheduler.cpp to use the moveInstr API
when reordering MIs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149147 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/MachineScheduler.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'lib/CodeGen/MachineScheduler.cpp')

diff --git a/lib/CodeGen/MachineScheduler.cpp b/lib/CodeGen/MachineScheduler.cpp
index a14b391223..73560bdc61 100644
--- a/lib/CodeGen/MachineScheduler.cpp
+++ b/lib/CodeGen/MachineScheduler.cpp
@@ -43,6 +43,7 @@ public:
   const TargetInstrInfo *TII;
   const MachineLoopInfo *MLI;
   const MachineDominatorTree *MDT;
+  LiveIntervals *LIS;
 
   MachineScheduler();
 
@@ -236,7 +237,7 @@ void ScheduleTopDownLive::Schedule() {
     if (&*InsertPos == MI)
       ++InsertPos;
     else {
-      BB->splice(InsertPos, BB, MI);
+      Pass->LIS->moveInstr(InsertPos, MI);
       if (Begin == InsertPos)
         Begin = MI;
     }
@@ -253,6 +254,7 @@ bool MachineScheduler::runOnMachineFunction(MachineFunction &mf) {
   MF = &mf;
   MLI = &getAnalysis<MachineLoopInfo>();
   MDT = &getAnalysis<MachineDominatorTree>();
+  LIS = &getAnalysis<LiveIntervals>();
   TII = MF->getTarget().getInstrInfo();
 
   // Select the scheduler, or set the default.
-- 
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