//===- ExecutionDriver.cpp - Allow execution of LLVM program --------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
//
// This file contains code used to execute the program utilizing one of the
// various ways of running LLVM bytecode.
#include "llvm/Support/ToolRunner.h"
#include <fstream>
#include <iostream>
+using namespace llvm;
namespace {
// OutputType - Allow the user to specify the way code should be run, to test
// for miscompilation.
//
enum OutputType {
- RunLLI, RunJIT, RunLLC, RunCBE
+ AutoPick, RunLLI, RunJIT, RunLLC, RunCBE
};
cl::opt<OutputType>
InterpreterSel(cl::desc("Specify how LLVM code should be executed:"),
- cl::values(clEnumValN(RunLLI, "run-lli", "Execute with LLI"),
+ cl::values(clEnumValN(AutoPick, "auto", "Use best guess"),
+ clEnumValN(RunLLI, "run-int", "Execute with the interpreter"),
clEnumValN(RunJIT, "run-jit", "Execute with JIT"),
clEnumValN(RunLLC, "run-llc", "Compile with LLC"),
clEnumValN(RunCBE, "run-cbe", "Compile with CBE"),
- 0));
+ 0),
+ cl::init(AutoPick));
+
+ cl::opt<bool>
+ CheckProgramExitCode("check-exit-code",
+ cl::desc("Assume nonzero exit code is failure (default on)"),
+ cl::init(true));
cl::opt<std::string>
InputFile("input", cl::init("/dev/null"),
"into executing programs"));
}
-// Anything specified after the --args option are taken as arguments to the
-// program being debugged.
-cl::list<std::string>
-InputArgv("args", cl::Positional, cl::desc("<program arguments>..."),
- cl::ZeroOrMore);
+namespace llvm {
+ // Anything specified after the --args option are taken as arguments to the
+ // program being debugged.
+ cl::list<std::string>
+ InputArgv("args", cl::Positional, cl::desc("<program arguments>..."),
+ cl::ZeroOrMore);
+}
//===----------------------------------------------------------------------===//
// BugDriver method implementation
bool BugDriver::initializeExecutionEnvironment() {
std::cout << "Initializing execution environment: ";
- // FIXME: This should default to searching for the best interpreter to use on
- // this platform, which would be JIT, then LLC, then CBE, then LLI.
-
// Create an instance of the AbstractInterpreter interface as specified on
// the command line
+ cbe = 0;
std::string Message;
switch (InterpreterSel) {
+ case AutoPick:
+ InterpreterSel = RunCBE;
+ Interpreter = cbe = AbstractInterpreter::createCBE(getToolName(), Message);
+ if (!Interpreter) {
+ InterpreterSel = RunJIT;
+ Interpreter = AbstractInterpreter::createJIT(getToolName(), Message);
+ }
+ if (!Interpreter) {
+ InterpreterSel = RunLLC;
+ Interpreter = AbstractInterpreter::createLLC(getToolName(), Message);
+ }
+ if (!Interpreter) {
+ InterpreterSel = RunLLI;
+ Interpreter = AbstractInterpreter::createLLI(getToolName(), Message);
+ }
+ if (!Interpreter) {
+ InterpreterSel = AutoPick;
+ Message = "Sorry, I can't automatically select an interpreter!\n";
+ }
+ break;
case RunLLI:
Interpreter = AbstractInterpreter::createLLI(getToolName(), Message);
break;
Interpreter = AbstractInterpreter::createJIT(getToolName(), Message);
break;
case RunCBE:
- Interpreter = AbstractInterpreter::createCBE(getToolName(), Message);
+ Interpreter = cbe = AbstractInterpreter::createCBE(getToolName(), Message);
break;
default:
Message = "Sorry, this back-end is not supported by bugpoint right now!\n";
std::cerr << Message;
// Initialize auxiliary tools for debugging
- cbe = AbstractInterpreter::createCBE(getToolName(), Message);
- if (!cbe) { std::cout << Message << "\nExiting.\n"; exit(1); }
+ if (!cbe) {
+ cbe = AbstractInterpreter::createCBE(getToolName(), Message);
+ if (!cbe) { std::cout << Message << "\nExiting.\n"; exit(1); }
+ }
gcc = GCC::create(getToolName(), Message);
if (!gcc) { std::cout << Message << "\nExiting.\n"; exit(1); }
return Interpreter == 0;
}
+/// compileProgram - Try to compile the specified module, throwing an exception
+/// if an error occurs, or returning normally if not. This is used for code
+/// generation crash testing.
+///
+void BugDriver::compileProgram(Module *M) {
+ // Emit the program to a bytecode file...
+ std::string BytecodeFile = getUniqueFilename("bugpoint-test-program.bc");
+ if (writeProgramToFile(BytecodeFile, M)) {
+ std::cerr << ToolName << ": Error emitting bytecode to file '"
+ << BytecodeFile << "'!\n";
+ exit(1);
+ }
+
+ // Remove the temporary bytecode file when we are done.
+ FileRemover BytecodeFileRemover(BytecodeFile);
+
+ // Actually compile the program!
+ Interpreter->compileProgram(BytecodeFile);
+}
+
/// executeProgram - This method runs "Program", capturing the output of the
/// program to a file, returning the filename of the file. A recommended
std::string BugDriver::executeProgram(std::string OutputFile,
std::string BytecodeFile,
const std::string &SharedObj,
- AbstractInterpreter *AI) {
+ AbstractInterpreter *AI,
+ bool *ProgramExitedNonzero) {
if (AI == 0) AI = Interpreter;
assert(AI && "Interpreter should have been created already!");
bool CreatedBytecode = false;
CreatedBytecode = true;
}
+ // Remove the temporary bytecode file when we are done.
+ FileRemover BytecodeFileRemover(BytecodeFile, CreatedBytecode);
+
if (OutputFile.empty()) OutputFile = "bugpoint-execution-output";
// Check to see if this is a valid output filename...
int RetVal = AI->ExecuteProgram(BytecodeFile, InputArgv, InputFile,
OutputFile, SharedObjs);
-
- // Remove the temporary bytecode file.
- if (CreatedBytecode) removeFile(BytecodeFile);
+ if (ProgramExitedNonzero != 0)
+ *ProgramExitedNonzero = (RetVal != 0);
// Return the filename we captured the output to.
return OutputFile;
}
+/// executeProgramWithCBE - Used to create reference output with the C
+/// backend, if reference output is not provided.
+///
+std::string BugDriver::executeProgramWithCBE(std::string OutputFile) {
+ bool ProgramExitedNonzero;
+ std::string outFN = executeProgram(OutputFile, "", "",
+ (AbstractInterpreter*)cbe,
+ &ProgramExitedNonzero);
+ if (ProgramExitedNonzero) {
+ std::cerr
+ << "Warning: While generating reference output, program exited with\n"
+ << "non-zero exit code. This will NOT be treated as a failure.\n";
+ CheckProgramExitCode = false;
+ }
+ return outFN;
+}
std::string BugDriver::compileSharedObject(const std::string &BytecodeFile) {
assert(Interpreter && "Interpreter should have been created already!");
// Remove the intermediate C file
removeFile(OutputCFile);
- return SharedObjectFile;
+ return "./" + SharedObjectFile;
}
bool BugDriver::diffProgram(const std::string &BytecodeFile,
const std::string &SharedObject,
bool RemoveBytecode) {
+ bool ProgramExitedNonzero;
+
// Execute the program, generating an output file...
- std::string Output = executeProgram("", BytecodeFile, SharedObject);
+ std::string Output = executeProgram("", BytecodeFile, SharedObject, 0,
+ &ProgramExitedNonzero);
+
+ // If we're checking the program exit code, assume anything nonzero is bad.
+ if (CheckProgramExitCode && ProgramExitedNonzero) {
+ removeFile(Output);
+ if (RemoveBytecode) removeFile(BytecodeFile);
+ return true;
+ }
std::string Error;
bool FilesDifferent = false;
}
FilesDifferent = true;
}
+
+ // Remove the generated output.
+ removeFile(Output);
+ // Remove the bytecode file if we are supposed to.
if (RemoveBytecode) removeFile(BytecodeFile);
return FilesDifferent;
}
bool BugDriver::isExecutingJIT() {
return InterpreterSel == RunJIT;
}
+
projects / oota-llvm.git / blobdiff