Fix batch of converting RegisterPass<> to INTIALIZE_PASS().

[oota-llvm.git] / lib / Analysis / InstCount.cpp

diff --git a/lib/Analysis/InstCount.cpp b/lib/Analysis/InstCount.cpp
index 0d84cc8c4fda3649c556cd79d027c83cb216ede6..6133b8827b38b28707fb529ee562cb008acb1dfe 100644 (file)
--- a/lib/Analysis/InstCount.cpp
+++ b/lib/Analysis/InstCount.cpp
@@ -1,50 +1,85 @@
 //===-- InstCount.cpp - Collects the count of all instructions ------------===//
 //
-// This pass collects the count of all instructions and reports them 
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This pass collects the count of all instructions and reports them
 //
 //===----------------------------------------------------------------------===//
 
+#define DEBUG_TYPE "instcount"
+#include "llvm/Analysis/Passes.h"
 #include "llvm/Pass.h"
-#include "llvm/Module.h"
+#include "llvm/Function.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/InstVisitor.h"
-#include "Support/Statistic.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/ADT/Statistic.h"
+using namespace llvm;
+
+STATISTIC(TotalInsts , "Number of instructions (of all types)");
+STATISTIC(TotalBlocks, "Number of basic blocks");
+STATISTIC(TotalFuncs , "Number of non-external functions");
+STATISTIC(TotalMemInst, "Number of memory instructions");
 
-namespace {
 #define HANDLE_INST(N, OPCODE, CLASS) \
-    Statistic<> Num##OPCODE##Inst("instcount", "Number of " #OPCODE " insts");
+  STATISTIC(Num ## OPCODE ## Inst, "Number of " #OPCODE " insts");
 
 #include "llvm/Instruction.def"
 
-  class InstCount : public Pass, public InstVisitor<InstCount> {
+
+namespace {
+  class InstCount : public FunctionPass, public InstVisitor<InstCount> {
     friend class InstVisitor<InstCount>;
 
+    void visitFunction  (Function &F) { ++TotalFuncs; }
+    void visitBasicBlock(BasicBlock &BB) { ++TotalBlocks; }
+
 #define HANDLE_INST(N, OPCODE, CLASS) \
-    void visit##OPCODE(CLASS &) { Num##OPCODE##Inst++; }
+    void visit##OPCODE(CLASS &) { ++Num##OPCODE##Inst; ++TotalInsts; }
 
 #include "llvm/Instruction.def"
 
     void visitInstruction(Instruction &I) {
-      std::cerr << "Instruction Count does not know about " << I;
-      abort();
+      errs() << "Instruction Count does not know about " << I;
+      llvm_unreachable(0);
     }
   public:
-    virtual bool run(Module &M);
+    static char ID; // Pass identification, replacement for typeid
+    InstCount() : FunctionPass(&ID) {}
+
+    virtual bool runOnFunction(Function &F);
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.setPreservesAll();
     }
-    virtual void print(std::ostream &O, Module *M) const {}
+    virtual void print(raw_ostream &O, const Module *M) const {}
 
   };
-
-  RegisterAnalysis<InstCount> X("instcount",
-                                "Counts the various types of Instructions");
 }
 
+char InstCount::ID = 0;
+INITIALIZE_PASS(InstCount, "instcount",
+                "Counts the various types of Instructions", false, true);
+
+FunctionPass *llvm::createInstCountPass() { return new InstCount(); }
+
 // InstCount::run - This is the main Analysis entry point for a
 // function.
 //
-bool InstCount::run(Module &M) {
-  visit(M);
+bool InstCount::runOnFunction(Function &F) {
+  unsigned StartMemInsts =
+    NumGetElementPtrInst + NumLoadInst + NumStoreInst + NumCallInst +
+    NumInvokeInst + NumAllocaInst;
+  visit(F);
+  unsigned EndMemInsts =
+    NumGetElementPtrInst + NumLoadInst + NumStoreInst + NumCallInst +
+    NumInvokeInst + NumAllocaInst;
+  TotalMemInst += EndMemInsts-StartMemInsts;
   return false;
 }