Add debug output
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11139 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/GCSE.cpp b/lib/Transforms/Scalar/GCSE.cpp
index 3d700cb..eb74b7c 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 @@
//
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;