From 3846a304eb3c0647b69326ea59853d949ecdaa9b Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Thu, 5 Feb 2004 22:33:19 +0000
Subject: [PATCH] Add debug output

llvm-svn: 11139
---
 lib/Transforms/Scalar/GCSE.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/Transforms/Scalar/GCSE.cpp b/lib/Transforms/Scalar/GCSE.cpp
index 3d700cb4da4..eb74b7c0a44 100644
--- a/lib/Transforms/Scalar/GCSE.cpp
+++ b/lib/Transforms/Scalar/GCSE.cpp
@@ -21,6 +21,7 @@
 #include "llvm/Analysis/ValueNumbering.h"
 #include "llvm/Support/InstIterator.h"
 #include "Support/Statistic.h"
+#include "Support/Debug.h"
 #include <algorithm>
 using namespace llvm;
 
@@ -165,6 +166,9 @@ bool GCSE::EliminateRedundancies(Instruction *I,
 //
 void GCSE::ReplaceInstWithInst(Instruction *First, BasicBlock::iterator SI) {
   Instruction &Second = *SI;
+
+  DEBUG(std::cerr << "GCSE: Substituting %" << First->getName() << " for: "
+                  << Second);
   
   //cerr << "DEL " << (void*)Second << Second;