Reapplied r81355 with the problems fixed.

[oota-llvm.git] / lib / Transforms / Instrumentation / EdgeProfiling.cpp

diff --git a/lib/Transforms/Instrumentation/EdgeProfiling.cpp b/lib/Transforms/Instrumentation/EdgeProfiling.cpp
index 2220bbfbe99b8197033d7fc56dc2953b12306db5..b9cb275578e01a9d348b9c89c2c7f5286cb7fe4c 100644 (file)
--- a/lib/Transforms/Instrumentation/EdgeProfiling.cpp
+++ b/lib/Transforms/Instrumentation/EdgeProfiling.cpp
@@ -16,26 +16,30 @@
 // number of counters inserted.
 //
 //===----------------------------------------------------------------------===//
-
+#define DEBUG_TYPE "insert-edge-profiling"
 #include "ProfilingUtils.h"
-#include "llvm/Constants.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/LLVMContext.h"
 #include "llvm/Module.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/Compiler.h"
-#include "llvm/Support/Streams.h"
+#include "llvm/Support/raw_ostream.h"
 #include "llvm/Transforms/Utils/BasicBlockUtils.h"
 #include "llvm/Transforms/Instrumentation.h"
+#include "llvm/ADT/Statistic.h"
 #include <set>
 using namespace llvm;
 
+STATISTIC(NumEdgesInserted, "The # of edges inserted.");
+
 namespace {
   class VISIBILITY_HIDDEN EdgeProfiler : public ModulePass {
     bool runOnModule(Module &M);
   public:
     static char ID; // Pass identification, replacement for typeid
     EdgeProfiler() : ModulePass(&ID) {}
+
+    virtual const char *getPassName() const {
+      return "Edge Profiler";
+    }
   };
 }
 
@@ -48,8 +52,8 @@ ModulePass *llvm::createEdgeProfilerPass() { return new EdgeProfiler(); }
 bool EdgeProfiler::runOnModule(Module &M) {
   Function *Main = M.getFunction("main");
   if (Main == 0) {
-    cerr << "WARNING: cannot insert edge profiling into a module"
-         << " with no main function!\n";
+    errs() << "WARNING: cannot insert edge profiling into a module"
+           << " with no main function!\n";
     return false;  // No main, no instrumentation!
   }
 
@@ -72,6 +76,7 @@ bool EdgeProfiler::runOnModule(Module &M) {
   GlobalVariable *Counters =
     new GlobalVariable(M, ATy, false, GlobalValue::InternalLinkage,
                        Constant::getNullValue(ATy), "EdgeProfCounters");
+  NumEdgesInserted = NumEdges;
 
   // Instrument all of the edges...
   unsigned i = 0;