Remove dead metadata.

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

diff --git a/lib/Transforms/IPO/StripDeadPrototypes.cpp b/lib/Transforms/IPO/StripDeadPrototypes.cpp
index 7d03ae68abf68d9dd3614cbff156eb006a53c238..a94d78e276c5466a795a5ddf7ddc3048175c6003 100644 (file)
--- a/lib/Transforms/IPO/StripDeadPrototypes.cpp
+++ b/lib/Transforms/IPO/StripDeadPrototypes.cpp
@@ -1,14 +1,16 @@
-//===-- 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).
 //
 //===----------------------------------------------------------------------===//
 
@@ -27,14 +29,17 @@ namespace {
 /// @brief Pass to remove unused function declarations.
 class VISIBILITY_HIDDEN StripDeadPrototypesPass : public ModulePass {
 public:
-  StripDeadPrototypesPass() { }
+  static char ID; // Pass identification, replacement for typeid
+  StripDeadPrototypesPass() : ModulePass(&ID) { }
   virtual bool runOnModule(Module &M);
 };
-RegisterPass<StripDeadPrototypesPass> X("strip-dead-prototypes", 
-                                        "Strip Unused Function Prototypes");
 
 } // end anonymous namespace
 
+char StripDeadPrototypesPass::ID = 0;
+static RegisterPass<StripDeadPrototypesPass>
+X("strip-dead-prototypes", "Strip Unused Function Prototypes");
+
 bool StripDeadPrototypesPass::runOnModule(Module &M) {
   bool MadeChange = false;