// 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";
+ }
};
}
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!
}
}
}
- const Type *ATy = ArrayType::get(Type::Int32Ty, NumEdges);
+ const Type *ATy = ArrayType::get(Type::getInt32Ty(M.getContext()), NumEdges);
GlobalVariable *Counters =
new GlobalVariable(M, ATy, false, GlobalValue::InternalLinkage,
Constant::getNullValue(ATy), "EdgeProfCounters");
+ NumEdgesInserted = NumEdges;
// Instrument all of the edges...
unsigned i = 0;