1 files changed, 0 insertions, 442 deletions
diff --git a/contrib/llvm/tools/lto/LTOCodeGenerator.cpp b/contrib/llvm/tools/lto/LTOCodeGenerator.cpp
deleted file mode 100644
index 671348c..0000000
--- a/contrib/llvm/tools/lto/LTOCodeGenerator.cpp
+++ /dev/null
@@ -1,442 +0,0 @@
-//===-LTOCodeGenerator.cpp - LLVM Link Time Optimizer ---------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-// 
-//===----------------------------------------------------------------------===//
-//
-// This file implements the Link Time Optimization library. This library is 
-// intended to be used by linker to optimize code at link time.
-//
-//===----------------------------------------------------------------------===//
-
-#include "LTOModule.h"
-#include "LTOCodeGenerator.h"
-
-#include "llvm/Constants.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Linker.h"
-#include "llvm/LLVMContext.h"
-#include "llvm/Module.h"
-#include "llvm/PassManager.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/ADT/Triple.h"
-#include "llvm/Analysis/Passes.h"
-#include "llvm/Bitcode/ReaderWriter.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/Target/Mangler.h"
-#include "llvm/Target/SubtargetFeature.h"
-#include "llvm/Target/TargetOptions.h"
-#include "llvm/Target/TargetData.h"
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetRegistry.h"
-#include "llvm/Target/TargetSelect.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/FormattedStream.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/StandardPasses.h"
-#include "llvm/Support/SystemUtils.h"
-#include "llvm/System/Host.h"
-#include "llvm/System/Program.h"
-#include "llvm/System/Signals.h"
-#include "llvm/Config/config.h"
-#include <cstdlib>
-#include <unistd.h>
-#include <fcntl.h>
-
-
-using namespace llvm;
-
-static cl::opt<bool> DisableInline("disable-inlining",
-  cl::desc("Do not run the inliner pass"));
-
-
-const char* LTOCodeGenerator::getVersionString()
-{
-#ifdef LLVM_VERSION_INFO
-    return PACKAGE_NAME " version " PACKAGE_VERSION ", " LLVM_VERSION_INFO;
-#else
-    return PACKAGE_NAME " version " PACKAGE_VERSION;
-#endif
-}
-
-
-LTOCodeGenerator::LTOCodeGenerator() 
-    : _context(getGlobalContext()),
-      _linker("LinkTimeOptimizer", "ld-temp.o", _context), _target(NULL),
-      _emitDwarfDebugInfo(false), _scopeRestrictionsDone(false),
-      _codeModel(LTO_CODEGEN_PIC_MODEL_DYNAMIC),
-      _nativeObjectFile(NULL), _assemblerPath(NULL)
-{
-    InitializeAllTargets();
-    InitializeAllAsmPrinters();
-}
-
-LTOCodeGenerator::~LTOCodeGenerator()
-{
-    delete _target;
-    delete _nativeObjectFile;
-}
-
-
-
-bool LTOCodeGenerator::addModule(LTOModule* mod, std::string& errMsg)
-{
-    return _linker.LinkInModule(mod->getLLVVMModule(), &errMsg);
-}
-    
-
-bool LTOCodeGenerator::setDebugInfo(lto_debug_model debug, std::string& errMsg)
-{
-    switch (debug) {
-        case LTO_DEBUG_MODEL_NONE:
-            _emitDwarfDebugInfo = false;
-            return false;
-            
-        case LTO_DEBUG_MODEL_DWARF:
-            _emitDwarfDebugInfo = true;
-            return false;
-    }
-    errMsg = "unknown debug format";
-    return true;
-}
-
-
-bool LTOCodeGenerator::setCodePICModel(lto_codegen_model model, 
-                                       std::string& errMsg)
-{
-    switch (model) {
-        case LTO_CODEGEN_PIC_MODEL_STATIC:
-        case LTO_CODEGEN_PIC_MODEL_DYNAMIC:
-        case LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC:
-            _codeModel = model;
-            return false;
-    }
-    errMsg = "unknown pic model";
-    return true;
-}
-
-void LTOCodeGenerator::setCpu(const char* mCpu)
-{
-  _mCpu = mCpu;
-}
-
-void LTOCodeGenerator::setAssemblerPath(const char* path)
-{
-    if ( _assemblerPath )
-        delete _assemblerPath;
-    _assemblerPath = new sys::Path(path);
-}
-
-void LTOCodeGenerator::setAssemblerArgs(const char** args, int nargs)
-{
-  for (int i = 0; i < nargs; ++i) {
-    const char *arg = args[i];
-    _assemblerArgs.push_back(arg);
-  }
-}
-
-void LTOCodeGenerator::addMustPreserveSymbol(const char* sym)
-{
-    _mustPreserveSymbols[sym] = 1;
-}
-
-
-bool LTOCodeGenerator::writeMergedModules(const char *path,
-                                          std::string &errMsg) {
-  if (determineTarget(errMsg))
-    return true;
-
-  // mark which symbols can not be internalized 
-  applyScopeRestrictions();
-
-  // create output file
-  std::string ErrInfo;
-  tool_output_file Out(path, ErrInfo,
-                       raw_fd_ostream::F_Binary);
-  if (!ErrInfo.empty()) {
-    errMsg = "could not open bitcode file for writing: ";
-    errMsg += path;
-    return true;
-  }
-    
-  // write bitcode to it
-  WriteBitcodeToFile(_linker.getModule(), Out.os());
-  Out.os().close();
-
-  if (Out.os().has_error()) {
-    errMsg = "could not write bitcode file: ";
-    errMsg += path;
-    Out.os().clear_error();
-    return true;
-  }
-  
-  Out.keep();
-  return false;
-}
-
-
-const void* LTOCodeGenerator::compile(size_t* length, std::string& errMsg)
-{
-    // make unique temp .s file to put generated assembly code
-    sys::Path uniqueAsmPath("lto-llvm.s");
-    if ( uniqueAsmPath.createTemporaryFileOnDisk(true, &errMsg) )
-        return NULL;
-    sys::RemoveFileOnSignal(uniqueAsmPath);
-       
-    // generate assembly code
-    bool genResult = false;
-    {
-      tool_output_file asmFile(uniqueAsmPath.c_str(), errMsg);
-      if (!errMsg.empty())
-        return NULL;
-      genResult = this->generateAssemblyCode(asmFile.os(), errMsg);
-      asmFile.os().close();
-      if (asmFile.os().has_error()) {
-        asmFile.os().clear_error();
-        return NULL;
-      }
-      asmFile.keep();
-    }
-    if ( genResult ) {
-        uniqueAsmPath.eraseFromDisk();
-        return NULL;
-    }
-    
-    // make unique temp .o file to put generated object file
-    sys::PathWithStatus uniqueObjPath("lto-llvm.o");
-    if ( uniqueObjPath.createTemporaryFileOnDisk(true, &errMsg) ) {
-        uniqueAsmPath.eraseFromDisk();
-        return NULL;
-    }
-    sys::RemoveFileOnSignal(uniqueObjPath);
-
-    // assemble the assembly code
-    const std::string& uniqueObjStr = uniqueObjPath.str();
-    bool asmResult = this->assemble(uniqueAsmPath.str(), uniqueObjStr, errMsg);
-    if ( !asmResult ) {
-        // remove old buffer if compile() called twice
-        delete _nativeObjectFile;
-        
-        // read .o file into memory buffer
-        _nativeObjectFile = MemoryBuffer::getFile(uniqueObjStr.c_str(),&errMsg);
-    }
-
-    // remove temp files
-    uniqueAsmPath.eraseFromDisk();
-    uniqueObjPath.eraseFromDisk();
-
-    // return buffer, unless error
-    if ( _nativeObjectFile == NULL )
-        return NULL;
-    *length = _nativeObjectFile->getBufferSize();
-    return _nativeObjectFile->getBufferStart();
-}
-
-
-bool LTOCodeGenerator::assemble(const std::string& asmPath, 
-                                const std::string& objPath, std::string& errMsg)
-{
-    sys::Path tool;
-    bool needsCompilerOptions = true;
-    if ( _assemblerPath ) {
-        tool = *_assemblerPath;
-        needsCompilerOptions = false;
-    } else {
-        // find compiler driver
-        tool = sys::Program::FindProgramByName("gcc");
-        if ( tool.isEmpty() ) {
-            errMsg = "can't locate gcc";
-            return true;
-        }
-    }
-
-    // build argument list
-    std::vector<const char*> args;
-    llvm::Triple targetTriple(_linker.getModule()->getTargetTriple());
-    const char *arch = targetTriple.getArchNameForAssembler();
-
-    args.push_back(tool.c_str());
-
-    if (targetTriple.getOS() == Triple::Darwin) {
-        // darwin specific command line options
-        if (arch != NULL) {
-            args.push_back("-arch");
-            args.push_back(arch);
-        }
-        // add -static to assembler command line when code model requires
-        if ( (_assemblerPath != NULL) &&
-            (_codeModel == LTO_CODEGEN_PIC_MODEL_STATIC) )
-            args.push_back("-static");
-    }
-    if ( needsCompilerOptions ) {
-        args.push_back("-c");
-        args.push_back("-x");
-        args.push_back("assembler");
-    } else {
-        for (std::vector<std::string>::iterator I = _assemblerArgs.begin(),
-               E = _assemblerArgs.end(); I != E; ++I) {
-            args.push_back(I->c_str());
-        }
-    }
-    args.push_back("-o");
-    args.push_back(objPath.c_str());
-    args.push_back(asmPath.c_str());
-    args.push_back(0);
-
-    // invoke assembler
-    if ( sys::Program::ExecuteAndWait(tool, &args[0], 0, 0, 0, 0, &errMsg) ) {
-        errMsg = "error in assembly";    
-        return true;
-    }
-    return false; // success
-}
-
-
-
-bool LTOCodeGenerator::determineTarget(std::string& errMsg)
-{
-    if ( _target == NULL ) {
-        std::string Triple = _linker.getModule()->getTargetTriple();
-        if (Triple.empty())
-          Triple = sys::getHostTriple();
-
-        // create target machine from info for merged modules
-        const Target *march = TargetRegistry::lookupTarget(Triple, errMsg);
-        if ( march == NULL )
-            return true;
-
-        // The relocation model is actually a static member of TargetMachine
-        // and needs to be set before the TargetMachine is instantiated.
-        switch( _codeModel ) {
-        case LTO_CODEGEN_PIC_MODEL_STATIC:
-            TargetMachine::setRelocationModel(Reloc::Static);
-            break;
-        case LTO_CODEGEN_PIC_MODEL_DYNAMIC:
-            TargetMachine::setRelocationModel(Reloc::PIC_);
-            break;
-        case LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC:
-            TargetMachine::setRelocationModel(Reloc::DynamicNoPIC);
-            break;
-        }
-
-        // construct LTModule, hand over ownership of module and target
-        SubtargetFeatures Features;
-        Features.getDefaultSubtargetFeatures(_mCpu, llvm::Triple(Triple));
-        std::string FeatureStr = Features.getString();
-        _target = march->createTargetMachine(Triple, FeatureStr);
-    }
-    return false;
-}
-
-void LTOCodeGenerator::applyScopeRestrictions() {
-  if (_scopeRestrictionsDone) return;
-  Module *mergedModule = _linker.getModule();
-
-  // Start off with a verification pass.
-  PassManager passes;
-  passes.add(createVerifierPass());
-
-  // mark which symbols can not be internalized 
-  if (!_mustPreserveSymbols.empty()) {
-    MCContext Context(*_target->getMCAsmInfo());
-    Mangler mangler(Context, *_target->getTargetData());
-    std::vector<const char*> mustPreserveList;
-    for (Module::iterator f = mergedModule->begin(),
-         e = mergedModule->end(); f != e; ++f) {
-      if (!f->isDeclaration() &&
-          _mustPreserveSymbols.count(mangler.getNameWithPrefix(f)))
-        mustPreserveList.push_back(::strdup(f->getNameStr().c_str()));
-    }
-    for (Module::global_iterator v = mergedModule->global_begin(), 
-         e = mergedModule->global_end(); v !=  e; ++v) {
-      if (!v->isDeclaration() &&
-          _mustPreserveSymbols.count(mangler.getNameWithPrefix(v)))
-        mustPreserveList.push_back(::strdup(v->getNameStr().c_str()));
-    }
-    passes.add(createInternalizePass(mustPreserveList));
-  }
-  
-  // apply scope restrictions
-  passes.run(*mergedModule);
-  
-  _scopeRestrictionsDone = true;
-}
-
-/// Optimize merged modules using various IPO passes
-bool LTOCodeGenerator::generateAssemblyCode(raw_ostream& out,
-                                            std::string& errMsg)
-{
-    if ( this->determineTarget(errMsg) ) 
-        return true;
-
-    // mark which symbols can not be internalized 
-    this->applyScopeRestrictions();
-
-    Module* mergedModule = _linker.getModule();
-
-    // if options were requested, set them
-    if ( !_codegenOptions.empty() )
-        cl::ParseCommandLineOptions(_codegenOptions.size(), 
-                                    const_cast<char **>(&_codegenOptions[0]));
-
-    // Instantiate the pass manager to organize the passes.
-    PassManager passes;
-
-    // Start off with a verification pass.
-    passes.add(createVerifierPass());
-
-    // Add an appropriate TargetData instance for this module...
-    passes.add(new TargetData(*_target->getTargetData()));
-    
-    createStandardLTOPasses(&passes, /*Internalize=*/ false, !DisableInline,
-                            /*VerifyEach=*/ false);
-
-    // Make sure everything is still good.
-    passes.add(createVerifierPass());
-
-    FunctionPassManager* codeGenPasses = new FunctionPassManager(mergedModule);
-
-    codeGenPasses->add(new TargetData(*_target->getTargetData()));
-
-    formatted_raw_ostream Out(out);
-
-    if (_target->addPassesToEmitFile(*codeGenPasses, Out,
-                                     TargetMachine::CGFT_AssemblyFile,
-                                     CodeGenOpt::Aggressive)) {
-      errMsg = "target file type not supported";
-      return true;
-    }
-
-    // Run our queue of passes all at once now, efficiently.
-    passes.run(*mergedModule);
-
-    // Run the code generator, and write assembly file
-    codeGenPasses->doInitialization();
-
-    for (Module::iterator
-           it = mergedModule->begin(), e = mergedModule->end(); it != e; ++it)
-      if (!it->isDeclaration())
-        codeGenPasses->run(*it);
-
-    codeGenPasses->doFinalization();
-
-    return false; // success
-}
-
-
-/// Optimize merged modules using various IPO passes
-void LTOCodeGenerator::setCodeGenDebugOptions(const char* options)
-{
-    for (std::pair<StringRef, StringRef> o = getToken(options);
-         !o.first.empty(); o = getToken(o.second)) {
-        // ParseCommandLineOptions() expects argv[0] to be program name.
-        // Lazily add that.
-        if ( _codegenOptions.empty() ) 
-            _codegenOptions.push_back("libLTO");
-        _codegenOptions.push_back(strdup(o.first.str().c_str()));
-    }
-}