//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//
//===----------------------------------------------------------------------===//
+#define DEBUG_TYPE "hello"
#include "llvm/Pass.h"
#include "llvm/Function.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/Support/SlowOperationInformer.h"
-#include "llvm/Support/Streams.h"
+#include "llvm/Support/raw_ostream.h"
#include "llvm/ADT/Statistic.h"
using namespace llvm;
+STATISTIC(HelloCounter, "Counts number of functions greeted");
+
namespace {
- Statistic HelloCounter("hellocount",
- "Counts number of functions greeted");
// Hello - The first implementation, without getAnalysisUsage.
struct Hello : public FunctionPass {
+ static char ID; // Pass identification, replacement for typeid
+ Hello() : FunctionPass(&ID) {}
+
virtual bool runOnFunction(Function &F) {
- SlowOperationInformer soi("EscapeString");
HelloCounter++;
- std::string fname = F.getName();
- EscapeString(fname);
- llvm_cerr << "Hello: " << fname << "\n";
+ errs() << "Hello: ";
+ errs().write_escaped(F.getName()) << '\n';
return false;
}
};
- RegisterPass<Hello> X("hello", "Hello World Pass");
+}
+
+char Hello::ID = 0;
+static RegisterPass<Hello> X("hello", "Hello World Pass");
+namespace {
// Hello2 - The second implementation with getAnalysisUsage implemented.
struct Hello2 : public FunctionPass {
+ static char ID; // Pass identification, replacement for typeid
+ Hello2() : FunctionPass(&ID) {}
+
virtual bool runOnFunction(Function &F) {
- SlowOperationInformer soi("EscapeString");
HelloCounter++;
- std::string fname = F.getName();
- EscapeString(fname);
- llvm_cerr << "Hello: " << fname << "\n";
+ errs() << "Hello: ";
+ errs().write_escaped(F.getName()) << '\n';
return false;
}
// We don't modify the program, so we preserve all analyses
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
- };
+ }
};
- RegisterPass<Hello2> Y("hello2",
- "Hello World Pass (with getAnalysisUsage implemented)");
}
+
+char Hello2::ID = 0;
+static RegisterPass<Hello2>
+Y("hello2", "Hello World Pass (with getAnalysisUsage implemented)");