mirror of
https://github.com/c64scene-ar/llvm-6502.git
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c763552299
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35950 91177308-0d34-0410-b5e6-96231b3b80d8
653 lines
21 KiB
C++
653 lines
21 KiB
C++
//===-- Analyzer.cpp - Analysis and Dumping of Bytecode ---------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Reid Spencer and is distributed under the
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// University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the AnalyzerHandler class and PrintBytecodeAnalysis
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// function which together comprise the basic functionality of the llmv-abcd
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// tool. The AnalyzerHandler collects information about the bytecode file into
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// the BytecodeAnalysis structure. The PrintBytecodeAnalysis function prints
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// out the content of that structure.
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// @see include/llvm/Bytecode/Analysis.h
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//
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//===----------------------------------------------------------------------===//
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#include "Reader.h"
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#include "llvm/Constants.h"
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#include "llvm/DerivedTypes.h"
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#include "llvm/Module.h"
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#include "llvm/Analysis/Verifier.h"
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#include "llvm/Bytecode/BytecodeHandler.h"
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#include "llvm/Assembly/Writer.h"
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#include <iomanip>
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#include <sstream>
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#include <ios>
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using namespace llvm;
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namespace {
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/// @brief Bytecode reading handler for analyzing bytecode.
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class AnalyzerHandler : public BytecodeHandler {
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BytecodeAnalysis& bca; ///< The structure in which data is recorded
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std::ostream* os; ///< A convenience for osing data.
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/// @brief Keeps track of current function
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BytecodeAnalysis::BytecodeFunctionInfo* currFunc;
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Module* M; ///< Keeps track of current module
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/// @name Constructor
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/// @{
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public:
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/// The only way to construct an AnalyzerHandler. All that is needed is a
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/// reference to the BytecodeAnalysis structure where the output will be
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/// placed.
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AnalyzerHandler(BytecodeAnalysis& TheBca, std::ostream* output)
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: bca(TheBca)
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, os(output)
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, currFunc(0)
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{ }
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/// @}
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/// @name BytecodeHandler Implementations
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/// @{
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public:
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virtual void handleError(const std::string& str ) {
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if (os)
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*os << "ERROR: " << str << "\n";
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}
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virtual void handleStart( Module* Mod, unsigned theSize ) {
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M = Mod;
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if (os)
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*os << "Bytecode {\n";
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bca.byteSize = theSize;
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bca.ModuleId.clear();
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bca.numBlocks = 0;
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bca.numTypes = 0;
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bca.numValues = 0;
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bca.numFunctions = 0;
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bca.numConstants = 0;
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bca.numGlobalVars = 0;
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bca.numInstructions = 0;
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bca.numBasicBlocks = 0;
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bca.numOperands = 0;
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bca.numCmpctnTables = 0;
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bca.numSymTab = 0;
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bca.numLibraries = 0;
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bca.libSize = 0;
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bca.maxTypeSlot = 0;
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bca.maxValueSlot = 0;
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bca.numAlignment = 0;
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bca.fileDensity = 0.0;
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bca.globalsDensity = 0.0;
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bca.functionDensity = 0.0;
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bca.instructionSize = 0;
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bca.longInstructions = 0;
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bca.FunctionInfo.clear();
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bca.BlockSizes[BytecodeFormat::Reserved_DoNotUse] = 0;
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bca.BlockSizes[BytecodeFormat::ModuleBlockID] = theSize;
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bca.BlockSizes[BytecodeFormat::FunctionBlockID] = 0;
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bca.BlockSizes[BytecodeFormat::ConstantPoolBlockID] = 0;
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bca.BlockSizes[BytecodeFormat::ValueSymbolTableBlockID] = 0;
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bca.BlockSizes[BytecodeFormat::ModuleGlobalInfoBlockID] = 0;
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bca.BlockSizes[BytecodeFormat::GlobalTypePlaneBlockID] = 0;
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bca.BlockSizes[BytecodeFormat::InstructionListBlockID] = 0;
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bca.BlockSizes[BytecodeFormat::TypeSymbolTableBlockID] = 0;
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}
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virtual void handleFinish() {
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if (os)
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*os << "} End Bytecode\n";
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bca.fileDensity = double(bca.byteSize) / double( bca.numTypes + bca.numValues );
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double globalSize = 0.0;
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globalSize += double(bca.BlockSizes[BytecodeFormat::ConstantPoolBlockID]);
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globalSize += double(bca.BlockSizes[BytecodeFormat::ModuleGlobalInfoBlockID]);
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globalSize += double(bca.BlockSizes[BytecodeFormat::GlobalTypePlaneBlockID]);
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bca.globalsDensity = globalSize / double( bca.numTypes + bca.numConstants +
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bca.numGlobalVars );
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bca.functionDensity = double(bca.BlockSizes[BytecodeFormat::FunctionBlockID]) /
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double(bca.numFunctions);
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if (bca.progressiveVerify) {
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std::string msg;
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if (verifyModule(*M, ReturnStatusAction, &msg))
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bca.VerifyInfo += "Verify@Finish: " + msg + "\n";
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}
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}
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virtual void handleModuleBegin(const std::string& id) {
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if (os)
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*os << " Module " << id << " {\n";
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bca.ModuleId = id;
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}
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virtual void handleModuleEnd(const std::string& id) {
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if (os)
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*os << " } End Module " << id << "\n";
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if (bca.progressiveVerify) {
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std::string msg;
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if (verifyModule(*M, ReturnStatusAction, &msg))
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bca.VerifyInfo += "Verify@EndModule: " + msg + "\n";
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}
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}
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virtual void handleVersionInfo(
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unsigned char RevisionNum ///< Byte code revision number
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) {
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if (os)
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*os << " RevisionNum: " << int(RevisionNum) << "\n";
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bca.version = RevisionNum;
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}
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virtual void handleModuleGlobalsBegin() {
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if (os)
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*os << " BLOCK: ModuleGlobalInfo {\n";
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}
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virtual void handleGlobalVariable(
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const Type* ElemType,
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bool isConstant,
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GlobalValue::LinkageTypes Linkage,
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GlobalValue::VisibilityTypes Visibility,
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unsigned SlotNum,
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unsigned initSlot,
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bool isThreadLocal
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) {
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if (os) {
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*os << " GV: "
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<< ( initSlot == 0 ? "Uni" : "I" ) << "nitialized, "
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<< ( isConstant? "Constant, " : "Variable, ")
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<< " Thread Local = " << ( isThreadLocal? "yes, " : "no, ")
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<< " Linkage=" << Linkage
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<< " Visibility="<< Visibility
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<< " Type=";
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WriteTypeSymbolic(*os, ElemType, M);
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*os << " Slot=" << SlotNum << " InitSlot=" << initSlot
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<< "\n";
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}
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bca.numGlobalVars++;
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bca.numValues++;
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if (SlotNum > bca.maxValueSlot)
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bca.maxValueSlot = SlotNum;
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if (initSlot > bca.maxValueSlot)
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bca.maxValueSlot = initSlot;
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}
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virtual void handleTypeList(unsigned numEntries) {
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bca.maxTypeSlot = numEntries - 1;
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}
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virtual void handleType( const Type* Ty ) {
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bca.numTypes++;
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if (os) {
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*os << " Type: ";
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WriteTypeSymbolic(*os,Ty,M);
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*os << "\n";
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}
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}
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virtual void handleFunctionDeclaration(
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Function* Func ///< The function
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) {
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bca.numFunctions++;
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bca.numValues++;
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if (os) {
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*os << " Function Decl: ";
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WriteTypeSymbolic(*os,Func->getType(),M);
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*os <<", Linkage=" << Func->getLinkage();
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*os <<", Visibility=" << Func->getVisibility();
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*os << "\n";
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}
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}
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virtual void handleGlobalInitializer(GlobalVariable* GV, Constant* CV) {
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if (os) {
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*os << " Initializer: GV=";
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GV->print(*os);
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*os << " CV=";
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CV->print(*os);
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*os << "\n";
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}
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}
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virtual void handleDependentLibrary(const std::string& libName) {
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bca.numLibraries++;
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bca.libSize += libName.size() + (libName.size() < 128 ? 1 : 2);
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if (os)
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*os << " Library: '" << libName << "'\n";
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}
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virtual void handleModuleGlobalsEnd() {
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if (os)
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*os << " } END BLOCK: ModuleGlobalInfo\n";
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if (bca.progressiveVerify) {
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std::string msg;
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if (verifyModule(*M, ReturnStatusAction, &msg))
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bca.VerifyInfo += "Verify@EndModuleGlobalInfo: " + msg + "\n";
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}
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}
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virtual void handleTypeSymbolTableBegin(TypeSymbolTable* ST) {
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bca.numSymTab++;
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if (os)
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*os << " BLOCK: TypeSymbolTable {\n";
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}
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virtual void handleValueSymbolTableBegin(Function* CF, ValueSymbolTable* ST) {
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bca.numSymTab++;
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if (os)
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*os << " BLOCK: ValueSymbolTable {\n";
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}
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virtual void handleSymbolTableType(unsigned i, unsigned TypSlot,
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const std::string& name ) {
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if (os)
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*os << " Type " << i << " Slot=" << TypSlot
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<< " Name: " << name << "\n";
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}
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virtual void handleSymbolTableValue(unsigned TySlot, unsigned ValSlot,
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const char *Name, unsigned NameLen) {
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if (os)
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*os << " Value " << TySlot << " Slot=" << ValSlot
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<< " Name: " << std::string(Name, Name+NameLen) << "\n";
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if (ValSlot > bca.maxValueSlot)
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bca.maxValueSlot = ValSlot;
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}
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virtual void handleValueSymbolTableEnd() {
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if (os)
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*os << " } END BLOCK: ValueSymbolTable\n";
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}
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virtual void handleTypeSymbolTableEnd() {
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if (os)
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*os << " } END BLOCK: TypeSymbolTable\n";
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}
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virtual void handleFunctionBegin(Function* Func, unsigned Size) {
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if (os) {
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*os << " BLOCK: Function {\n"
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<< " Linkage: " << Func->getLinkage() << "\n"
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<< " Visibility: " << Func->getVisibility() << "\n"
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<< " Type: ";
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WriteTypeSymbolic(*os,Func->getType(),M);
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*os << "\n";
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}
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currFunc = &bca.FunctionInfo[Func];
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std::ostringstream tmp;
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WriteTypeSymbolic(tmp,Func->getType(),M);
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currFunc->description = tmp.str();
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currFunc->name = Func->getName();
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currFunc->byteSize = Size;
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currFunc->numInstructions = 0;
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currFunc->numBasicBlocks = 0;
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currFunc->numPhis = 0;
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currFunc->numOperands = 0;
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currFunc->density = 0.0;
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currFunc->instructionSize = 0;
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currFunc->longInstructions = 0;
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}
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virtual void handleFunctionEnd( Function* Func) {
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if (os)
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*os << " } END BLOCK: Function\n";
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currFunc->density = double(currFunc->byteSize) /
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double(currFunc->numInstructions);
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if (bca.progressiveVerify) {
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std::string msg;
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if (verifyModule(*M, ReturnStatusAction, &msg))
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bca.VerifyInfo += "Verify@EndFunction: " + msg + "\n";
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}
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}
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virtual void handleBasicBlockBegin( unsigned blocknum) {
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if (os)
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*os << " BLOCK: BasicBlock #" << blocknum << "{\n";
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bca.numBasicBlocks++;
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bca.numValues++;
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if ( currFunc ) currFunc->numBasicBlocks++;
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}
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virtual bool handleInstruction( unsigned Opcode, const Type* iType,
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unsigned *Operands, unsigned NumOps,
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Instruction *Inst,
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unsigned Size){
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if (os) {
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*os << " INST: OpCode="
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<< Instruction::getOpcodeName(Opcode);
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for (unsigned i = 0; i != NumOps; ++i)
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*os << " Op(" << Operands[i] << ")";
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*os << *Inst;
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}
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bca.numInstructions++;
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bca.numValues++;
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bca.instructionSize += Size;
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if (Size > 4 ) bca.longInstructions++;
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bca.numOperands += NumOps;
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for (unsigned i = 0; i != NumOps; ++i)
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if (Operands[i] > bca.maxValueSlot)
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bca.maxValueSlot = Operands[i];
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if ( currFunc ) {
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currFunc->numInstructions++;
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currFunc->instructionSize += Size;
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if (Size > 4 ) currFunc->longInstructions++;
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if (Opcode == Instruction::PHI) currFunc->numPhis++;
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}
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return Instruction::isTerminator(Opcode);
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}
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virtual void handleBasicBlockEnd(unsigned blocknum) {
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if (os)
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*os << " } END BLOCK: BasicBlock #" << blocknum << "\n";
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}
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virtual void handleGlobalConstantsBegin() {
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if (os)
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*os << " BLOCK: GlobalConstants {\n";
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}
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virtual void handleConstantExpression(unsigned Opcode,
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Constant**ArgVec, unsigned NumArgs, Constant* C) {
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if (os) {
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*os << " EXPR: " << Instruction::getOpcodeName(Opcode) << "\n";
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for ( unsigned i = 0; i != NumArgs; ++i ) {
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*os << " Arg#" << i << " "; ArgVec[i]->print(*os);
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*os << "\n";
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}
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*os << " Value=";
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C->print(*os);
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*os << "\n";
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}
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bca.numConstants++;
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bca.numValues++;
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}
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virtual void handleConstantValue( Constant * c ) {
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if (os) {
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*os << " VALUE: ";
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c->print(*os);
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*os << "\n";
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}
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bca.numConstants++;
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bca.numValues++;
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}
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virtual void handleConstantArray( const ArrayType* AT,
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Constant**Elements, unsigned NumElts,
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unsigned TypeSlot,
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Constant* ArrayVal ) {
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if (os) {
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*os << " ARRAY: ";
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WriteTypeSymbolic(*os,AT,M);
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*os << " TypeSlot=" << TypeSlot << "\n";
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for (unsigned i = 0; i != NumElts; ++i) {
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*os << " #" << i;
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Elements[i]->print(*os);
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*os << "\n";
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}
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*os << " Value=";
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ArrayVal->print(*os);
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*os << "\n";
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}
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bca.numConstants++;
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bca.numValues++;
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}
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virtual void handleConstantStruct(
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const StructType* ST,
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Constant**Elements, unsigned NumElts,
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Constant* StructVal)
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{
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if (os) {
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*os << " STRUC: ";
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WriteTypeSymbolic(*os,ST,M);
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*os << "\n";
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for ( unsigned i = 0; i != NumElts; ++i) {
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*os << " #" << i << " "; Elements[i]->print(*os);
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*os << "\n";
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}
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*os << " Value=";
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StructVal->print(*os);
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*os << "\n";
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}
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bca.numConstants++;
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bca.numValues++;
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}
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virtual void handleConstantVector(
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const VectorType* PT,
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Constant**Elements, unsigned NumElts,
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unsigned TypeSlot,
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Constant* VectorVal)
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{
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if (os) {
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*os << " PACKD: ";
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WriteTypeSymbolic(*os,PT,M);
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*os << " TypeSlot=" << TypeSlot << "\n";
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for ( unsigned i = 0; i != NumElts; ++i ) {
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*os << " #" << i;
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Elements[i]->print(*os);
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*os << "\n";
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}
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*os << " Value=";
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VectorVal->print(*os);
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*os << "\n";
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}
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bca.numConstants++;
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bca.numValues++;
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}
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virtual void handleConstantPointer( const PointerType* PT,
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unsigned Slot, GlobalValue* GV ) {
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if (os) {
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*os << " PNTR: ";
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WriteTypeSymbolic(*os,PT,M);
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*os << " Slot=" << Slot << " GlobalValue=";
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GV->print(*os);
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*os << "\n";
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}
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bca.numConstants++;
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bca.numValues++;
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}
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virtual void handleConstantString( const ConstantArray* CA ) {
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if (os) {
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*os << " STRNG: ";
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CA->print(*os);
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*os << "\n";
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}
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bca.numConstants++;
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bca.numValues++;
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}
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virtual void handleGlobalConstantsEnd() {
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if (os)
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*os << " } END BLOCK: GlobalConstants\n";
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if (bca.progressiveVerify) {
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std::string msg;
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if (verifyModule(*M, ReturnStatusAction, &msg))
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bca.VerifyInfo += "Verify@EndGlobalConstants: " + msg + "\n";
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}
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}
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virtual void handleAlignment(unsigned numBytes) {
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bca.numAlignment += numBytes;
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}
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virtual void handleBlock(
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unsigned BType, const unsigned char* StartPtr, unsigned Size) {
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bca.numBlocks++;
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assert(BType >= BytecodeFormat::ModuleBlockID);
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assert(BType < BytecodeFormat::NumberOfBlockIDs);
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bca.BlockSizes[
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llvm::BytecodeFormat::BytecodeBlockIdentifiers(BType)] += Size;
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if (bca.version < 3) // Check for long block headers versions
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bca.BlockSizes[llvm::BytecodeFormat::Reserved_DoNotUse] += 8;
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else
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bca.BlockSizes[llvm::BytecodeFormat::Reserved_DoNotUse] += 4;
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}
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};
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} // end anonymous namespace
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/// @brief Utility for printing a titled unsigned value with
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/// an aligned colon.
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inline static void print(std::ostream& Out, const char*title,
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unsigned val, bool nl = true ) {
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Out << std::setw(30) << std::right << title
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<< std::setw(0) << ": "
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<< std::setw(9) << val << "\n";
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}
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/// @brief Utility for printing a titled double value with an
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/// aligned colon
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inline static void print(std::ostream&Out, const char*title,
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double val ) {
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Out << std::setw(30) << std::right << title
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<< std::setw(0) << ": "
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<< std::setw(9) << std::setprecision(6) << val << "\n" ;
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}
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|
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/// @brief Utility for printing a titled double value with a
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/// percentage and aligned colon.
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inline static void print(std::ostream&Out, const char*title,
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double top, double bot ) {
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Out << std::setw(30) << std::right << title
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<< std::setw(0) << ": "
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<< std::setw(9) << std::setprecision(6) << top
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<< " (" << std::left << std::setw(0) << std::setprecision(4)
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<< (top/bot)*100.0 << "%)\n";
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}
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|
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/// @brief Utility for printing a titled string value with
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/// an aligned colon.
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inline static void print(std::ostream&Out, const char*title,
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std::string val, bool nl = true) {
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Out << std::setw(30) << std::right << title
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<< std::setw(0) << ": "
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<< std::left << val << (nl ? "\n" : "");
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}
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/// This function prints the contents of rhe BytecodeAnalysis structure in
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/// a human legible form.
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/// @brief Print BytecodeAnalysis structure to an ostream
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void llvm::PrintBytecodeAnalysis(BytecodeAnalysis& bca, std::ostream& Out )
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{
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Out << "\nSummary Analysis Of " << bca.ModuleId << ": \n\n";
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print(Out, "Bytecode Analysis Of Module", bca.ModuleId);
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print(Out, "Bytecode Version Number", bca.version);
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print(Out, "File Size", bca.byteSize);
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print(Out, "Module Bytes",
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double(bca.BlockSizes[BytecodeFormat::ModuleBlockID]),
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double(bca.byteSize));
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print(Out, "Function Bytes",
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double(bca.BlockSizes[BytecodeFormat::FunctionBlockID]),
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|
double(bca.byteSize));
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print(Out, "Global Types Bytes",
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double(bca.BlockSizes[BytecodeFormat::GlobalTypePlaneBlockID]),
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|
double(bca.byteSize));
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print(Out, "Constant Pool Bytes",
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double(bca.BlockSizes[BytecodeFormat::ConstantPoolBlockID]),
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|
double(bca.byteSize));
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print(Out, "Module Globals Bytes",
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|
double(bca.BlockSizes[BytecodeFormat::ModuleGlobalInfoBlockID]),
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|
double(bca.byteSize));
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|
print(Out, "Instruction List Bytes",
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|
double(bca.BlockSizes[BytecodeFormat::InstructionListBlockID]),
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|
double(bca.byteSize));
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|
print(Out, "Value Symbol Table Bytes",
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|
double(bca.BlockSizes[BytecodeFormat::ValueSymbolTableBlockID]),
|
|
double(bca.byteSize));
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|
print(Out, "Type Symbol Table Bytes",
|
|
double(bca.BlockSizes[BytecodeFormat::TypeSymbolTableBlockID]),
|
|
double(bca.byteSize));
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|
print(Out, "Alignment Bytes",
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|
double(bca.numAlignment), double(bca.byteSize));
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|
print(Out, "Block Header Bytes",
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|
double(bca.BlockSizes[BytecodeFormat::Reserved_DoNotUse]),
|
|
double(bca.byteSize));
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|
print(Out, "Dependent Libraries Bytes", double(bca.libSize),
|
|
double(bca.byteSize));
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|
print(Out, "Number Of Bytecode Blocks", bca.numBlocks);
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|
print(Out, "Number Of Functions", bca.numFunctions);
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|
print(Out, "Number Of Types", bca.numTypes);
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|
print(Out, "Number Of Constants", bca.numConstants);
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|
print(Out, "Number Of Global Variables", bca.numGlobalVars);
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|
print(Out, "Number Of Values", bca.numValues);
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|
print(Out, "Number Of Basic Blocks", bca.numBasicBlocks);
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|
print(Out, "Number Of Instructions", bca.numInstructions);
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|
print(Out, "Number Of Long Instructions", bca.longInstructions);
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|
print(Out, "Number Of Operands", bca.numOperands);
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|
print(Out, "Number Of Symbol Tables", bca.numSymTab);
|
|
print(Out, "Number Of Dependent Libs", bca.numLibraries);
|
|
print(Out, "Total Instruction Size", bca.instructionSize);
|
|
print(Out, "Average Instruction Size",
|
|
double(bca.instructionSize)/double(bca.numInstructions));
|
|
|
|
print(Out, "Maximum Type Slot Number", bca.maxTypeSlot);
|
|
print(Out, "Maximum Value Slot Number", bca.maxValueSlot);
|
|
print(Out, "Bytes Per Value ", bca.fileDensity);
|
|
print(Out, "Bytes Per Global", bca.globalsDensity);
|
|
print(Out, "Bytes Per Function", bca.functionDensity);
|
|
|
|
if (bca.detailedResults) {
|
|
Out << "\nDetailed Analysis Of " << bca.ModuleId << " Functions:\n";
|
|
|
|
std::map<const Function*,BytecodeAnalysis::BytecodeFunctionInfo>::iterator I =
|
|
bca.FunctionInfo.begin();
|
|
std::map<const Function*,BytecodeAnalysis::BytecodeFunctionInfo>::iterator E =
|
|
bca.FunctionInfo.end();
|
|
|
|
while ( I != E ) {
|
|
Out << std::left << std::setw(0) << "\n";
|
|
if (I->second.numBasicBlocks == 0) Out << "External ";
|
|
Out << "Function: " << I->second.name << "\n";
|
|
print(Out, "Type:", I->second.description);
|
|
print(Out, "Byte Size", I->second.byteSize);
|
|
if (I->second.numBasicBlocks) {
|
|
print(Out, "Basic Blocks", I->second.numBasicBlocks);
|
|
print(Out, "Instructions", I->second.numInstructions);
|
|
print(Out, "Long Instructions", I->second.longInstructions);
|
|
print(Out, "Operands", I->second.numOperands);
|
|
print(Out, "Instruction Size", I->second.instructionSize);
|
|
print(Out, "Average Instruction Size",
|
|
double(I->second.instructionSize) / I->second.numInstructions);
|
|
print(Out, "Bytes Per Instruction", I->second.density);
|
|
}
|
|
++I;
|
|
}
|
|
}
|
|
|
|
if ( bca.progressiveVerify )
|
|
Out << bca.VerifyInfo;
|
|
}
|
|
|
|
// AnalyzeBytecodeFile - analyze one file
|
|
Module* llvm::AnalyzeBytecodeFile(const std::string &Filename, ///< File to analyze
|
|
BytecodeAnalysis& bca, ///< Statistical output
|
|
BCDecompressor_t *BCDC,
|
|
std::string *ErrMsg, ///< Error output
|
|
std::ostream* output ///< Dump output
|
|
) {
|
|
BytecodeHandler* AH = new AnalyzerHandler(bca, output);
|
|
ModuleProvider* MP = getBytecodeModuleProvider(Filename, BCDC, ErrMsg, AH);
|
|
if (!MP) return 0;
|
|
Module *M = MP->releaseModule(ErrMsg);
|
|
delete MP;
|
|
return M;
|
|
}
|