forked from OSchip/llvm-project
230 lines
7.4 KiB
C++
230 lines
7.4 KiB
C++
//===--- Compilation.cpp - Compilation Task Implementation ----------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Driver/Compilation.h"
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#include "clang/Driver/Action.h"
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#include "clang/Driver/Driver.h"
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#include "clang/Driver/DriverDiagnostic.h"
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#include "clang/Driver/Options.h"
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#include "clang/Driver/ToolChain.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/Option/ArgList.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace clang::driver;
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using namespace clang;
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using namespace llvm::opt;
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Compilation::Compilation(const Driver &D, const ToolChain &_DefaultToolChain,
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InputArgList *_Args, DerivedArgList *_TranslatedArgs,
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bool ContainsError)
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: TheDriver(D), DefaultToolChain(_DefaultToolChain), ActiveOffloadMask(0u),
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Args(_Args), TranslatedArgs(_TranslatedArgs), Redirects(nullptr),
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ForDiagnostics(false), ContainsError(ContainsError) {
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// The offloading host toolchain is the default tool chain.
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OrderedOffloadingToolchains.insert(
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std::make_pair(Action::OFK_Host, &DefaultToolChain));
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}
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Compilation::~Compilation() {
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delete TranslatedArgs;
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delete Args;
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// Free any derived arg lists.
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for (auto Arg : TCArgs)
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if (Arg.second != TranslatedArgs)
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delete Arg.second;
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// Free redirections of stdout/stderr.
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if (Redirects) {
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delete Redirects[0];
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delete Redirects[1];
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delete Redirects[2];
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delete [] Redirects;
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}
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}
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const DerivedArgList &
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Compilation::getArgsForToolChain(const ToolChain *TC, StringRef BoundArch,
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Action::OffloadKind DeviceOffloadKind) {
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if (!TC)
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TC = &DefaultToolChain;
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DerivedArgList *&Entry = TCArgs[{TC, BoundArch, DeviceOffloadKind}];
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if (!Entry) {
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// Translate OpenMP toolchain arguments provided via the -Xopenmp-target flags.
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DerivedArgList *OpenMPArgs = TC->TranslateOpenMPTargetArgs(*TranslatedArgs,
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DeviceOffloadKind);
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if (!OpenMPArgs) {
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Entry = TC->TranslateArgs(*TranslatedArgs, BoundArch, DeviceOffloadKind);
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} else {
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Entry = TC->TranslateArgs(*OpenMPArgs, BoundArch, DeviceOffloadKind);
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delete OpenMPArgs;
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}
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if (!Entry)
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Entry = TranslatedArgs;
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}
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return *Entry;
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}
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bool Compilation::CleanupFile(const char *File, bool IssueErrors) const {
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// FIXME: Why are we trying to remove files that we have not created? For
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// example we should only try to remove a temporary assembly file if
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// "clang -cc1" succeed in writing it. Was this a workaround for when
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// clang was writing directly to a .s file and sometimes leaving it behind
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// during a failure?
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// FIXME: If this is necessary, we can still try to split
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// llvm::sys::fs::remove into a removeFile and a removeDir and avoid the
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// duplicated stat from is_regular_file.
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// Don't try to remove files which we don't have write access to (but may be
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// able to remove), or non-regular files. Underlying tools may have
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// intentionally not overwritten them.
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if (!llvm::sys::fs::can_write(File) || !llvm::sys::fs::is_regular_file(File))
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return true;
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if (std::error_code EC = llvm::sys::fs::remove(File)) {
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// Failure is only failure if the file exists and is "regular". We checked
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// for it being regular before, and llvm::sys::fs::remove ignores ENOENT,
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// so we don't need to check again.
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if (IssueErrors)
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getDriver().Diag(clang::diag::err_drv_unable_to_remove_file)
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<< EC.message();
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return false;
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}
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return true;
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}
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bool Compilation::CleanupFileList(const ArgStringList &Files,
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bool IssueErrors) const {
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bool Success = true;
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for (ArgStringList::const_iterator
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it = Files.begin(), ie = Files.end(); it != ie; ++it)
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Success &= CleanupFile(*it, IssueErrors);
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return Success;
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}
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bool Compilation::CleanupFileMap(const ArgStringMap &Files,
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const JobAction *JA,
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bool IssueErrors) const {
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bool Success = true;
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for (ArgStringMap::const_iterator
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it = Files.begin(), ie = Files.end(); it != ie; ++it) {
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// If specified, only delete the files associated with the JobAction.
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// Otherwise, delete all files in the map.
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if (JA && it->first != JA)
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continue;
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Success &= CleanupFile(it->second, IssueErrors);
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}
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return Success;
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}
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int Compilation::ExecuteCommand(const Command &C,
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const Command *&FailingCommand) const {
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if ((getDriver().CCPrintOptions ||
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getArgs().hasArg(options::OPT_v)) && !getDriver().CCGenDiagnostics) {
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raw_ostream *OS = &llvm::errs();
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// Follow gcc implementation of CC_PRINT_OPTIONS; we could also cache the
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// output stream.
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if (getDriver().CCPrintOptions && getDriver().CCPrintOptionsFilename) {
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std::error_code EC;
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OS = new llvm::raw_fd_ostream(getDriver().CCPrintOptionsFilename, EC,
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llvm::sys::fs::F_Append |
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llvm::sys::fs::F_Text);
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if (EC) {
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getDriver().Diag(clang::diag::err_drv_cc_print_options_failure)
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<< EC.message();
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FailingCommand = &C;
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delete OS;
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return 1;
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}
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}
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if (getDriver().CCPrintOptions)
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*OS << "[Logging clang options]";
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C.Print(*OS, "\n", /*Quote=*/getDriver().CCPrintOptions);
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if (OS != &llvm::errs())
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delete OS;
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}
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std::string Error;
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bool ExecutionFailed;
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int Res = C.Execute(Redirects, &Error, &ExecutionFailed);
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if (!Error.empty()) {
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assert(Res && "Error string set with 0 result code!");
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getDriver().Diag(clang::diag::err_drv_command_failure) << Error;
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}
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if (Res)
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FailingCommand = &C;
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return ExecutionFailed ? 1 : Res;
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}
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void Compilation::ExecuteJobs(
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const JobList &Jobs,
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SmallVectorImpl<std::pair<int, const Command *>> &FailingCommands) const {
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for (const auto &Job : Jobs) {
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const Command *FailingCommand = nullptr;
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if (int Res = ExecuteCommand(Job, FailingCommand)) {
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FailingCommands.push_back(std::make_pair(Res, FailingCommand));
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// Bail as soon as one command fails, so we don't output duplicate error
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// messages if we die on e.g. the same file.
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return;
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}
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}
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}
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void Compilation::initCompilationForDiagnostics() {
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ForDiagnostics = true;
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// Free actions and jobs.
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Actions.clear();
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AllActions.clear();
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Jobs.clear();
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// Clear temporary/results file lists.
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TempFiles.clear();
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ResultFiles.clear();
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FailureResultFiles.clear();
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// Remove any user specified output. Claim any unclaimed arguments, so as
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// to avoid emitting warnings about unused args.
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OptSpecifier OutputOpts[] = { options::OPT_o, options::OPT_MD,
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options::OPT_MMD };
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for (unsigned i = 0, e = llvm::array_lengthof(OutputOpts); i != e; ++i) {
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if (TranslatedArgs->hasArg(OutputOpts[i]))
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TranslatedArgs->eraseArg(OutputOpts[i]);
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}
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TranslatedArgs->ClaimAllArgs();
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// Redirect stdout/stderr to /dev/null.
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Redirects = new const StringRef*[3]();
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Redirects[0] = nullptr;
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Redirects[1] = new StringRef();
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Redirects[2] = new StringRef();
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}
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StringRef Compilation::getSysRoot() const {
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return getDriver().SysRoot;
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}
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void Compilation::Redirect(const StringRef** Redirects) {
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this->Redirects = Redirects;
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}
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