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87d13166c7
This is how it should've been and brings it more in line with std::string_view. There should be no functional change here. This is mostly mechanical from a custom clang-tidy check, with a lot of manual fixups. It uncovers a lot of minor inefficiencies. This doesn't actually modify StringRef yet, I'll do that in a follow-up.
191 lines
7.8 KiB
C++
191 lines
7.8 KiB
C++
//===-- tools/bugpoint/ToolRunner.h -----------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file exposes an abstraction around a platform C compiler, used to
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// compile C and assembly code. It also exposes an "AbstractIntepreter"
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// interface, which is used to execute code using one of the LLVM execution
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// engines.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_BUGPOINT_TOOLRUNNER_H
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#define LLVM_TOOLS_BUGPOINT_TOOLRUNNER_H
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#include "llvm/ADT/Triple.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/Error.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/SystemUtils.h"
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#include <exception>
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#include <vector>
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namespace llvm {
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extern cl::opt<bool> SaveTemps;
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extern Triple TargetTriple;
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class LLC;
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//===---------------------------------------------------------------------===//
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// CC abstraction
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//
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class CC {
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std::string CCPath; // The path to the cc executable.
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std::string RemoteClientPath; // The path to the rsh / ssh executable.
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std::vector<std::string> ccArgs; // CC-specific arguments.
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CC(StringRef ccPath, StringRef RemotePath,
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const std::vector<std::string> *CCArgs)
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: CCPath(std::string(ccPath)), RemoteClientPath(std::string(RemotePath)) {
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if (CCArgs)
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ccArgs = *CCArgs;
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}
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public:
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enum FileType { AsmFile, ObjectFile, CFile };
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static CC *create(const char *Argv0, std::string &Message,
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const std::string &CCBinary,
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const std::vector<std::string> *Args);
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/// ExecuteProgram - Execute the program specified by "ProgramFile" (which is
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/// either a .s file, or a .c file, specified by FileType), with the specified
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/// arguments. Standard input is specified with InputFile, and standard
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/// Output is captured to the specified OutputFile location. The SharedLibs
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/// option specifies optional native shared objects that can be loaded into
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/// the program for execution.
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///
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Expected<int> ExecuteProgram(
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const std::string &ProgramFile, const std::vector<std::string> &Args,
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FileType fileType, const std::string &InputFile,
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const std::string &OutputFile,
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const std::vector<std::string> &CCArgs = std::vector<std::string>(),
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unsigned Timeout = 0, unsigned MemoryLimit = 0);
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/// MakeSharedObject - This compiles the specified file (which is either a .c
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/// file or a .s file) into a shared object.
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///
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Error MakeSharedObject(const std::string &InputFile, FileType fileType,
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std::string &OutputFile,
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const std::vector<std::string> &ArgsForCC);
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};
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//===---------------------------------------------------------------------===//
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/// AbstractInterpreter Class - Subclasses of this class are used to execute
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/// LLVM bitcode in a variety of ways. This abstract interface hides this
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/// complexity behind a simple interface.
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///
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class AbstractInterpreter {
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virtual void anchor();
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public:
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static LLC *createLLC(const char *Argv0, std::string &Message,
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const std::string &CCBinary,
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const std::vector<std::string> *Args = nullptr,
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const std::vector<std::string> *CCArgs = nullptr,
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bool UseIntegratedAssembler = false);
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static AbstractInterpreter *
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createLLI(const char *Argv0, std::string &Message,
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const std::vector<std::string> *Args = nullptr);
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static AbstractInterpreter *
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createJIT(const char *Argv0, std::string &Message,
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const std::vector<std::string> *Args = nullptr);
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static AbstractInterpreter *
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createCustomCompiler(const char *Argv0, std::string &Message,
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const std::string &CompileCommandLine);
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static AbstractInterpreter *
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createCustomExecutor(const char *Argv0, std::string &Message,
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const std::string &ExecCommandLine);
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virtual ~AbstractInterpreter() {}
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/// compileProgram - Compile the specified program from bitcode to executable
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/// code. This does not produce any output, it is only used when debugging
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/// the code generator. It returns false if the code generator fails.
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virtual Error compileProgram(const std::string &Bitcode, unsigned Timeout = 0,
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unsigned MemoryLimit = 0) {
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return Error::success();
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}
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/// Compile the specified program from bitcode to code understood by the CC
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/// driver (either C or asm). Returns an error if the code generator fails,,
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/// otherwise, the type of code emitted.
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virtual Expected<CC::FileType> OutputCode(const std::string &Bitcode,
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std::string &OutFile,
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unsigned Timeout = 0,
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unsigned MemoryLimit = 0) {
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return make_error<StringError>(
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"OutputCode not supported by this AbstractInterpreter!",
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inconvertibleErrorCode());
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}
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/// ExecuteProgram - Run the specified bitcode file, emitting output to the
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/// specified filename. This sets RetVal to the exit code of the program or
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/// returns an Error if a problem was encountered that prevented execution of
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/// the program.
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///
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virtual Expected<int> ExecuteProgram(
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const std::string &Bitcode, const std::vector<std::string> &Args,
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const std::string &InputFile, const std::string &OutputFile,
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const std::vector<std::string> &CCArgs = std::vector<std::string>(),
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const std::vector<std::string> &SharedLibs = std::vector<std::string>(),
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unsigned Timeout = 0, unsigned MemoryLimit = 0) = 0;
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};
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//===---------------------------------------------------------------------===//
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// LLC Implementation of AbstractIntepreter interface
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//
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class LLC : public AbstractInterpreter {
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std::string LLCPath; // The path to the LLC executable.
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std::vector<std::string> ToolArgs; // Extra args to pass to LLC.
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CC *cc;
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bool UseIntegratedAssembler;
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public:
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LLC(const std::string &llcPath, CC *cc, const std::vector<std::string> *Args,
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bool useIntegratedAssembler)
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: LLCPath(llcPath), cc(cc),
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UseIntegratedAssembler(useIntegratedAssembler) {
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ToolArgs.clear();
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if (Args)
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ToolArgs = *Args;
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}
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~LLC() override { delete cc; }
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/// compileProgram - Compile the specified program from bitcode to executable
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/// code. This does not produce any output, it is only used when debugging
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/// the code generator. Returns false if the code generator fails.
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Error compileProgram(const std::string &Bitcode, unsigned Timeout = 0,
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unsigned MemoryLimit = 0) override;
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Expected<int> ExecuteProgram(
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const std::string &Bitcode, const std::vector<std::string> &Args,
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const std::string &InputFile, const std::string &OutputFile,
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const std::vector<std::string> &CCArgs = std::vector<std::string>(),
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const std::vector<std::string> &SharedLibs = std::vector<std::string>(),
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unsigned Timeout = 0, unsigned MemoryLimit = 0) override;
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Expected<CC::FileType> OutputCode(const std::string &Bitcode,
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std::string &OutFile, unsigned Timeout = 0,
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unsigned MemoryLimit = 0) override;
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};
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/// Find the first executable file \ExeName, either in the user's PATH or,
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/// failing that, in the same directory as argv[0]. This allows us to find
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/// another LLVM tool if it is built in the same directory. If no executable is
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/// found, an error is returned.
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ErrorOr<std::string> FindProgramByName(const std::string &ExeName,
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const char *Argv0, void *MainAddr);
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} // End llvm namespace
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#endif
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