From 1020604f2c049d92d23e98bb299954e9d9039e97 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Thu, 31 Aug 2006 05:58:59 +0000
Subject: [PATCH] Delete copies as they are coallesced instead of waiting until
 the end.

llvm-svn: 29995
---
 lib/CodeGen/LiveIntervalAnalysis.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 82389b20b32..b4bbb668b68 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -823,6 +823,10 @@ bool LiveIntervals::JoinCopy(MachineInstr *CopyMI,
   r2iMap_.erase(SrcReg);
   r2rMap_[SrcReg] = DstReg;
 
+  // Finally, delete the copy instruction.
+  RemoveMachineInstrFromMaps(CopyMI);
+  CopyMI->eraseFromParent();
+  ++numPeep;
   ++numJoins;
   return true;
 }