X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=blobdiff_plain;f=tools%2Fbugpoint%2FBugDriver.cpp;h=cede4ac3ae412481b1254bebe33a1ea988df0510;hp=8251ee4e3fac2da3d675529b5cc3b0d53ea5de49;hb=0b8c9a80f20772c3793201ab5b251d3520b9cea3;hpb=f1b20d8620b05abaa52f40ac6d21f839b265fb00 diff --git a/tools/bugpoint/BugDriver.cpp b/tools/bugpoint/BugDriver.cpp index 8251ee4e3fa..cede4ac3ae4 100644 --- a/tools/bugpoint/BugDriver.cpp +++ b/tools/bugpoint/BugDriver.cpp @@ -2,8 +2,8 @@ // // 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 is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // @@ -15,18 +15,22 @@ #include "BugDriver.h" #include "ToolRunner.h" +#include "llvm/IR/Module.h" #include "llvm/Linker.h" -#include "llvm/Module.h" #include "llvm/Pass.h" -#include "llvm/Assembly/Parser.h" -#include "llvm/Bytecode/Reader.h" #include "llvm/Support/CommandLine.h" #include "llvm/Support/FileUtilities.h" -#include +#include "llvm/Support/Host.h" +#include "llvm/Support/IRReader.h" +#include "llvm/Support/SourceMgr.h" +#include "llvm/Support/raw_ostream.h" #include - using namespace llvm; +namespace llvm { + Triple TargetTriple; +} + // Anonymous namespace to define command line options for debugging. // namespace { @@ -52,75 +56,86 @@ void BugDriver::setNewProgram(Module *M) { /// getPassesString - Turn a list of passes into a string which indicates the /// command line options that must be passed to add the passes. /// -std::string llvm::getPassesString(const std::vector &Passes) { +std::string llvm::getPassesString(const std::vector &Passes) { std::string Result; for (unsigned i = 0, e = Passes.size(); i != e; ++i) { if (i) Result += " "; Result += "-"; - Result += Passes[i]->getPassArgument(); + Result += Passes[i]; } return Result; } -BugDriver::BugDriver(const char *toolname, bool as_child) - : ToolName(toolname), ReferenceOutputFile(OutputFile), - Program(0), Interpreter(0), cbe(0), gcc(0), run_as_child(as_child) {} +BugDriver::BugDriver(const char *toolname, bool find_bugs, + unsigned timeout, unsigned memlimit, bool use_valgrind, + LLVMContext& ctxt) + : Context(ctxt), ToolName(toolname), ReferenceOutputFile(OutputFile), + Program(0), Interpreter(0), SafeInterpreter(0), gcc(0), + run_find_bugs(find_bugs), Timeout(timeout), + MemoryLimit(memlimit), UseValgrind(use_valgrind) {} + +BugDriver::~BugDriver() { + delete Program; +} -/// ParseInputFile - Given a bytecode or assembly input filename, parse and +/// ParseInputFile - Given a bitcode or assembly input filename, parse and /// return it, or return null if not possible. /// -Module *llvm::ParseInputFile(const std::string &InputFilename) { - Module *Result = 0; - try { - Result = ParseBytecodeFile(InputFilename); - if (!Result && !(Result = ParseAssemblyFile(InputFilename))){ - std::cerr << "bugpoint: could not read input file '" - << InputFilename << "'!\n"; +Module *llvm::ParseInputFile(const std::string &Filename, + LLVMContext& Ctxt) { + SMDiagnostic Err; + Module *Result = ParseIRFile(Filename, Err, Ctxt); + if (!Result) + Err.print("bugpoint", errs()); + + // If we don't have an override triple, use the first one to configure + // bugpoint, or use the host triple if none provided. + if (Result) { + if (TargetTriple.getTriple().empty()) { + Triple TheTriple(Result->getTargetTriple()); + + if (TheTriple.getTriple().empty()) + TheTriple.setTriple(sys::getDefaultTargetTriple()); + + TargetTriple.setTriple(TheTriple.getTriple()); } - } catch (const ParseException &E) { - std::cerr << "bugpoint: " << E.getMessage() << '\n'; - Result = 0; + + Result->setTargetTriple(TargetTriple.getTriple()); // override the triple } return Result; } // This method takes the specified list of LLVM input files, attempts to load -// them, either as assembly or bytecode, then link them together. It returns -// true on failure (if, for example, an input bytecode file could not be +// them, either as assembly or bitcode, then link them together. It returns +// true on failure (if, for example, an input bitcode file could not be // parsed), and false on success. // bool BugDriver::addSources(const std::vector &Filenames) { assert(Program == 0 && "Cannot call addSources multiple times!"); assert(!Filenames.empty() && "Must specify at least on input filename!"); - try { - // Load the first input file. - Program = ParseInputFile(Filenames[0]); - if (Program == 0) return true; - if (!run_as_child) - std::cout << "Read input file : '" << Filenames[0] << "'\n"; - - for (unsigned i = 1, e = Filenames.size(); i != e; ++i) { - std::auto_ptr M(ParseInputFile(Filenames[i])); - if (M.get() == 0) return true; - - if (!run_as_child) - std::cout << "Linking in input file: '" << Filenames[i] << "'\n"; - std::string ErrorMessage; - if (Linker::LinkModules(Program, M.get(), &ErrorMessage)) { - std::cerr << ToolName << ": error linking in '" << Filenames[i] << "': " - << ErrorMessage << '\n'; - return true; - } + // Load the first input file. + Program = ParseInputFile(Filenames[0], Context); + if (Program == 0) return true; + + outs() << "Read input file : '" << Filenames[0] << "'\n"; + + for (unsigned i = 1, e = Filenames.size(); i != e; ++i) { + std::auto_ptr M(ParseInputFile(Filenames[i], Context)); + if (M.get() == 0) return true; + + outs() << "Linking in input file: '" << Filenames[i] << "'\n"; + std::string ErrorMessage; + if (Linker::LinkModules(Program, M.get(), Linker::DestroySource, + &ErrorMessage)) { + errs() << ToolName << ": error linking in '" << Filenames[i] << "': " + << ErrorMessage << '\n'; + return true; } - } catch (const std::string &Error) { - std::cerr << ToolName << ": error reading input '" << Error << "'\n"; - return true; } - if (!run_as_child) - std::cout << "*** All input ok\n"; + outs() << "*** All input ok\n"; // All input files read successfully! return false; @@ -131,41 +146,38 @@ bool BugDriver::addSources(const std::vector &Filenames) { /// run - The top level method that is invoked after all of the instance /// variables are set up from command line arguments. /// -bool BugDriver::run() { - // The first thing to do is determine if we're running as a child. If we are, - // then what to do is very narrow. This form of invocation is only called - // from the runPasses method to actually run those passes in a child process. - if (run_as_child) { - // Execute the passes - return runPassesAsChild(PassesToRun); +bool BugDriver::run(std::string &ErrMsg) { + if (run_find_bugs) { + // Rearrange the passes and apply them to the program. Repeat this process + // until the user kills the program or we find a bug. + return runManyPasses(PassesToRun, ErrMsg); } - // If we're not running as a child, the first thing that we must do is - // determine what the problem is. Does the optimization series crash the - // compiler, or does it produce illegal code? We make the top-level - // decision by trying to run all of the passes on the the input program, - // which should generate a bytecode file. If it does generate a bytecode - // file, then we know the compiler didn't crash, so try to diagnose a + // If we're not running as a child, the first thing that we must do is + // determine what the problem is. Does the optimization series crash the + // compiler, or does it produce illegal code? We make the top-level + // decision by trying to run all of the passes on the input program, + // which should generate a bitcode file. If it does generate a bitcode + // file, then we know the compiler didn't crash, so try to diagnose a // miscompilation. if (!PassesToRun.empty()) { - std::cout << "Running selected passes on program to test for crash: "; - if (runPasses(PassesToRun)) + outs() << "Running selected passes on program to test for crash: "; + if (runPasses(Program, PassesToRun)) return debugOptimizerCrash(); } - // Set up the execution environment, selecting a method to run LLVM bytecode. + // Set up the execution environment, selecting a method to run LLVM bitcode. if (initializeExecutionEnvironment()) return true; // Test to see if we have a code generator crash. - std::cout << "Running the code generator to test for a crash: "; - try { - compileProgram(Program); - std::cout << '\n'; - } catch (ToolExecutionError &TEE) { - std::cout << TEE.what(); - return debugCodeGeneratorCrash(); + outs() << "Running the code generator to test for a crash: "; + std::string Error; + compileProgram(Program, &Error); + if (!Error.empty()) { + outs() << Error; + return debugCodeGeneratorCrash(ErrMsg); } - + outs() << '\n'; // Run the raw input to see where we are coming from. If a reference output // was specified, make sure that the raw output matches it. If not, it's a @@ -173,57 +185,63 @@ bool BugDriver::run() { // bool CreatedOutput = false; if (ReferenceOutputFile.empty()) { - std::cout << "Generating reference output from raw program: "; - try { - ReferenceOutputFile = executeProgramWithCBE("bugpoint.reference.out"); - CreatedOutput = true; - std::cout << "Reference output is: " << ReferenceOutputFile << '\n'; - } catch (ToolExecutionError &TEE) { - std::cerr << TEE.what(); - if (Interpreter != cbe) { - std::cerr << "*** There is a bug running the C backend. Either debug" - << " it (use the -run-cbe bugpoint option), or fix the error" - << " some other way.\n"; - return 1; - } - return debugCodeGeneratorCrash(); + outs() << "Generating reference output from raw program: "; + if (!createReferenceFile(Program)) { + return debugCodeGeneratorCrash(ErrMsg); } + CreatedOutput = true; } // Make sure the reference output file gets deleted on exit from this // function, if appropriate. sys::Path ROF(ReferenceOutputFile); - FileRemover RemoverInstance(ROF, CreatedOutput); + FileRemover RemoverInstance(ROF.str(), CreatedOutput && !SaveTemps); // Diff the output of the raw program against the reference output. If it - // matches, then we have a miscompilation bug. - std::cout << "*** Checking the code generator...\n"; - try { - if (!diffProgram()) { - std::cout << "\n*** Debugging miscompilation!\n"; - return debugMiscompilation(); + // matches, then we assume there is a miscompilation bug and try to + // diagnose it. + outs() << "*** Checking the code generator...\n"; + bool Diff = diffProgram(Program, "", "", false, &Error); + if (!Error.empty()) { + errs() << Error; + return debugCodeGeneratorCrash(ErrMsg); + } + if (!Diff) { + outs() << "\n*** Output matches: Debugging miscompilation!\n"; + debugMiscompilation(&Error); + if (!Error.empty()) { + errs() << Error; + return debugCodeGeneratorCrash(ErrMsg); } - } catch (ToolExecutionError &TEE) { - std::cerr << TEE.what(); - return debugCodeGeneratorCrash(); + return false; } - std::cout << "\n*** Input program does not match reference diff!\n"; - std::cout << "Debugging code generator problem!\n"; - try { - return debugCodeGenerator(); - } catch (ToolExecutionError &TEE) { - std::cerr << TEE.what(); - return debugCodeGeneratorCrash(); + outs() << "\n*** Input program does not match reference diff!\n"; + outs() << "Debugging code generator problem!\n"; + bool Failure = debugCodeGenerator(&Error); + if (!Error.empty()) { + errs() << Error; + return debugCodeGeneratorCrash(ErrMsg); } + return Failure; } void llvm::PrintFunctionList(const std::vector &Funcs) { unsigned NumPrint = Funcs.size(); if (NumPrint > 10) NumPrint = 10; for (unsigned i = 0; i != NumPrint; ++i) - std::cout << " " << Funcs[i]->getName(); + outs() << " " << Funcs[i]->getName(); if (NumPrint < Funcs.size()) - std::cout << "... <" << Funcs.size() << " total>"; - std::cout << std::flush; + outs() << "... <" << Funcs.size() << " total>"; + outs().flush(); +} + +void llvm::PrintGlobalVariableList(const std::vector &GVs) { + unsigned NumPrint = GVs.size(); + if (NumPrint > 10) NumPrint = 10; + for (unsigned i = 0; i != NumPrint; ++i) + outs() << " " << GVs[i]->getName(); + if (NumPrint < GVs.size()) + outs() << "... <" << GVs.size() << " total>"; + outs().flush(); }