mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-21 03:53:04 +02:00
4c1f3c24db
into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. llvm-svn: 171366
65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
//===- Hello.cpp - Example code from "Writing an LLVM Pass" ---------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements two versions of the LLVM "Hello World" pass described
|
|
// in docs/WritingAnLLVMPass.html
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#define DEBUG_TYPE "hello"
|
|
#include "llvm/ADT/Statistic.h"
|
|
#include "llvm/IR/Function.h"
|
|
#include "llvm/Pass.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
using namespace llvm;
|
|
|
|
STATISTIC(HelloCounter, "Counts number of functions greeted");
|
|
|
|
namespace {
|
|
// 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) {
|
|
++HelloCounter;
|
|
errs() << "Hello: ";
|
|
errs().write_escaped(F.getName()) << '\n';
|
|
return false;
|
|
}
|
|
};
|
|
}
|
|
|
|
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) {
|
|
++HelloCounter;
|
|
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();
|
|
}
|
|
};
|
|
}
|
|
|
|
char Hello2::ID = 0;
|
|
static RegisterPass<Hello2>
|
|
Y("hello2", "Hello World Pass (with getAnalysisUsage implemented)");
|