Delete unused method.

[oota-llvm.git] / lib / Transforms / IPO / StripDeadPrototypes.cpp

diff --git a/lib/Transforms/IPO/StripDeadPrototypes.cpp b/lib/Transforms/IPO/StripDeadPrototypes.cpp
index fd22fdb37f803d4b8e00a074f40fd82f21ce3a37..956991ad1f9562afcc455dbc1f0fae42a01cc6fa 100644 (file)
--- a/lib/Transforms/IPO/StripDeadPrototypes.cpp
+++ b/lib/Transforms/IPO/StripDeadPrototypes.cpp
@@ -1,4 +1,4 @@
-//===-- StripDeadPrototypes.cpp - Removed unused function declarations ----===//
+//===-- StripDeadPrototypes.cpp - Remove unused function declarations ----===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -8,36 +8,40 @@
 //===----------------------------------------------------------------------===//
 //
 // 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;
 
+#define DEBUG_TYPE "strip-dead-prototypes"
+
 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 identification, replacement for typeid
-  StripDeadPrototypesPass() : ModulePass((intptr_t)&ID) { }
-  virtual bool runOnModule(Module &M);
+  StripDeadPrototypesPass() : ModulePass(ID) {
+    initializeStripDeadPrototypesPassPass(*PassRegistry::getPassRegistry());
+  }
+  bool runOnModule(Module &M) override;
 };
 
-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;