From 8bb30184a8bd735ee6bfad7e30dbc6684aee65ed Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Mon, 5 Nov 2007 17:41:38 +0000
Subject: [PATCH] Move SimpleRegisterCoalescing.h to lib/CodeGen since there is
 now a common register coalescer interface: RegisterCoalescing.

llvm-svn: 43714
---
 llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp                 | 4 ++--
 llvm/{include/llvm => lib}/CodeGen/SimpleRegisterCoalescing.h | 4 ++++
 2 files changed, 6 insertions(+), 2 deletions(-)
 rename llvm/{include/llvm => lib}/CodeGen/SimpleRegisterCoalescing.h (98%)

diff --git a/llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp b/llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp
index 9993b633ada2..c02770a65fd4 100644
--- a/llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp
+++ b/llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp
@@ -13,9 +13,9 @@
 //===----------------------------------------------------------------------===//
 
 #define DEBUG_TYPE "regcoalescing"
-#include "llvm/CodeGen/SimpleRegisterCoalescing.h"
-#include "llvm/CodeGen/LiveIntervalAnalysis.h"
+#include "SimpleRegisterCoalescing.h"
 #include "VirtRegMap.h"
+#include "llvm/CodeGen/LiveIntervalAnalysis.h"
 #include "llvm/Value.h"
 #include "llvm/Analysis/LoopInfo.h"
 #include "llvm/CodeGen/LiveVariables.h"
diff --git a/llvm/include/llvm/CodeGen/SimpleRegisterCoalescing.h b/llvm/lib/CodeGen/SimpleRegisterCoalescing.h
similarity index 98%
rename from llvm/include/llvm/CodeGen/SimpleRegisterCoalescing.h
rename to llvm/lib/CodeGen/SimpleRegisterCoalescing.h
index b84781b15cb5..0f0d020f79d6 100644
--- a/llvm/include/llvm/CodeGen/SimpleRegisterCoalescing.h
+++ b/llvm/lib/CodeGen/SimpleRegisterCoalescing.h
@@ -56,6 +56,10 @@ namespace llvm {
     ///
     SmallVector<std::pair<unsigned, unsigned>, 32> SubRegIdxes;
 
+    /// JoinedCopies - Keep track of copies eliminated due to coalescing.
+    ///
+    SmallPtrSet<MachineInstr*, 32> JoinedCopies;
+
   public:
     static char ID; // Pass identifcation, replacement for typeid
     SimpleRegisterCoalescing() : MachineFunctionPass((intptr_t)&ID) {}