-//===-- StripDeadPrototypes.cpp - Removed unused function declarations ----===//
+//===-- StripDeadPrototypes.cpp - Remove unused function declarations ----===//
//
// The LLVM Compiler Infrastructure
//
-// This file was developed by Reid Spencer 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.
//
//===----------------------------------------------------------------------===//
//
// This pass loops over all of the functions in the input module, looking for
-// dead declarations and removes them.
+// dead declarations and removes them. Dead declarations are declarations of
+// functions for which no implementation is available (i.e., declarations for
+// unused library functions).
//
//===----------------------------------------------------------------------===//
#define DEBUG_TYPE "strip-dead-prototypes"
#include "llvm/Transforms/IPO.h"
-#include "llvm/Pass.h"
-#include "llvm/Module.h"
#include "llvm/ADT/Statistic.h"
-#include "llvm/Support/Compiler.h"
+#include "llvm/IR/Module.h"
+#include "llvm/Pass.h"
using namespace llvm;
STATISTIC(NumDeadPrototypes, "Number of dead prototypes removed");
namespace {
/// @brief Pass to remove unused function declarations.
-class VISIBILITY_HIDDEN StripDeadPrototypesPass : public ModulePass {
+class StripDeadPrototypesPass : public ModulePass {
public:
- static char ID; // Pass identifcation, replacement for typeid
- StripDeadPrototypesPass() : ModulePass((intptr_t)&ID) { }
+ static char ID; // Pass identification, replacement for typeid
+ StripDeadPrototypesPass() : ModulePass(ID) {
+ initializeStripDeadPrototypesPassPass(*PassRegistry::getPassRegistry());
+ }
virtual bool runOnModule(Module &M);
};
-char StripDeadPrototypesPass::ID = 0;
-RegisterPass<StripDeadPrototypesPass> X("strip-dead-prototypes",
- "Strip Unused Function Prototypes");
-
} // end anonymous namespace
+char StripDeadPrototypesPass::ID = 0;
+INITIALIZE_PASS(StripDeadPrototypesPass, "strip-dead-prototypes",
+ "Strip Unused Function Prototypes", false, false)
+
bool StripDeadPrototypesPass::runOnModule(Module &M) {
bool MadeChange = false;