[llvm-commits] [llvm] r80668 - /llvm/trunk/lib/Transforms/Instrumentation/EdgeProfiling.cpp

[Andreas Neustifter]

Author: astifter
Date: Tue Sep  1 05:08:39 2009
New Revision: 80668

URL: http://llvm.org/viewvc/llvm-project?rev=80668&view=rev
Log:
Preparation for Optimal Edge Profiling:
Add statistics for regular edge profiling, this enables the comparation of the
number of edges inserted by regular and optimal edge profiling.

Modified:
    llvm/trunk/lib/Transforms/Instrumentation/EdgeProfiling.cpp

Modified: llvm/trunk/lib/Transforms/Instrumentation/EdgeProfiling.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Instrumentation/EdgeProfiling.cpp?rev=80668&r1=80667&r2=80668&view=diff

==============================================================================
--- llvm/trunk/lib/Transforms/Instrumentation/EdgeProfiling.cpp (original)
+++ llvm/trunk/lib/Transforms/Instrumentation/EdgeProfiling.cpp Tue Sep  1 05:08:39 2009
@@ -16,7 +16,7 @@
 // number of counters inserted.
 //
 //===----------------------------------------------------------------------===//
-
+#define DEBUG_TYPE "insert-edge-profiling"
 #include "ProfilingUtils.h"
 #include "llvm/Module.h"
 #include "llvm/Pass.h"
@@ -24,15 +24,22 @@
 #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";
+    }
   };
 }
 
@@ -69,6 +76,7 @@
   GlobalVariable *Counters =
     new GlobalVariable(M, ATy, false, GlobalValue::InternalLinkage,
                        Constant::getNullValue(ATy), "EdgeProfCounters");
+  NumEdgesInserted = NumEdges;
 
   // Instrument all of the edges...
   unsigned i = 0;