//===- BugDriver.h - Top-Level BugPoint class -------------------*- C++ -*-===//
//
+// 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 class contains all of the shared state and information that is used by
// the BugPoint tool to track down errors in optimizations. This class is the
// main driver class that invokes all sub-functionality.
#include <vector>
#include <string>
+namespace llvm {
+
class PassInfo;
class Module;
class Function;
+class BasicBlock;
class AbstractInterpreter;
class Instruction;
class DebugCrashes;
-class ReduceMiscompilingPasses;
-class ReduceMiscompilingFunctions;
-class ReduceCrashingFunctions;
-class ReduceCrashingBlocks;
class CBE;
class GCC;
+extern bool DisableSimplifyCFG;
+
+/// BugpointIsInterrupted - Set to true when the user presses ctrl-c.
+///
+extern bool BugpointIsInterrupted;
+
class BugDriver {
const std::string ToolName; // Name of bugpoint
std::string ReferenceOutputFile; // Name of `good' output file
AbstractInterpreter *Interpreter; // How to run the program
CBE *cbe;
GCC *gcc;
+ bool run_as_child;
+ unsigned Timeout;
// FIXME: sort out public/private distinctions...
- friend class DebugCrashes;
- friend class ReduceMiscompilingPasses;
- friend class ReduceMiscompilingFunctions;
+ friend class ReducePassList;
friend class ReduceMisCodegenFunctions;
- friend class ReduceCrashingFunctions;
- friend class ReduceCrashingBlocks;
public:
- BugDriver(const char *toolname);
+ BugDriver(const char *toolname, bool as_child, unsigned timeout);
const std::string &getToolName() const { return ToolName; }
bool addSources(const std::vector<std::string> &FileNames);
template<class It>
void addPasses(It I, It E) { PassesToRun.insert(PassesToRun.end(), I, E); }
+ void setPassesToRun(const std::vector<const PassInfo*> &PTR) {
+ PassesToRun = PTR;
+ }
+ const std::vector<const PassInfo*> &getPassesToRun() const {
+ return PassesToRun;
+ }
/// run - The top level method that is invoked after all of the instance
- /// variables are set up from command line arguments.
+ /// variables are set up from command line arguments. The \p as_child argument
+ /// indicates whether the driver is to run in parent mode or child mode.
///
bool run();
- /// debugCrash - This method is called when some pass crashes on input. It
- /// attempts to prune down the testcase to something reasonable, and figure
- /// out exactly which pass is crashing.
+ /// debugOptimizerCrash - This method is called when some optimizer pass
+ /// crashes on input. It attempts to prune down the testcase to something
+ /// reasonable, and figure out exactly which pass is crashing.
///
- bool debugCrash();
+ bool debugOptimizerCrash();
+
+ /// debugCodeGeneratorCrash - This method is called when the code generator
+ /// crashes on an input. It attempts to reduce the input as much as possible
+ /// while still causing the code generator to crash.
+ bool debugCodeGeneratorCrash();
/// debugMiscompilation - This method is used when the passes selected are not
/// crashing, but the generated output is semantically different from the
/// are to match.
///
bool debugPassMiscompilation(const PassInfo *ThePass,
- const std::string &ReferenceOutput);
+ const std::string &ReferenceOutput);
/// compileSharedObject - This method creates a SharedObject from a given
/// BytecodeFile for debugging a code generator.
- int compileSharedObject(const std::string &BytecodeFile,
- std::string &SharedObject);
+ ///
+ std::string compileSharedObject(const std::string &BytecodeFile);
/// debugCodeGenerator - This method narrows down a module to a function or
/// set of functions, using the CBE as a ``safe'' code generator for other
/// functions that are not under consideration.
bool debugCodeGenerator();
+ /// isExecutingJIT - Returns true if bugpoint is currently testing the JIT
+ ///
bool isExecutingJIT();
-private:
- /// ParseInputFile - Given a bytecode or assembly input filename, parse and
- /// return it, or return null if not possible.
+ /// runPasses - Run all of the passes in the "PassesToRun" list, discard the
+ /// output, and return true if any of the passes crashed.
+ bool runPasses(Module *M = 0) {
+ if (M == 0) M = Program;
+ std::swap(M, Program);
+ bool Result = runPasses(PassesToRun);
+ std::swap(M, Program);
+ return Result;
+ }
+
+ Module *getProgram() const { return Program; }
+
+ /// swapProgramIn - Set the current module to the specified module, returning
+ /// the old one.
+ Module *swapProgramIn(Module *M) {
+ Module *OldProgram = Program;
+ Program = M;
+ return OldProgram;
+ }
+
+ AbstractInterpreter *switchToCBE() {
+ AbstractInterpreter *Old = Interpreter;
+ Interpreter = (AbstractInterpreter*)cbe;
+ return Old;
+ }
+
+ void switchToInterpreter(AbstractInterpreter *AI) {
+ Interpreter = AI;
+ }
+
+ /// setNewProgram - If we reduce or update the program somehow, call this
+ /// method to update bugdriver with it. This deletes the old module and sets
+ /// the specified one as the current program.
+ void setNewProgram(Module *M);
+
+ /// 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.
///
- Module *ParseInputFile(const std::string &InputFilename) const;
+ void compileProgram(Module *M);
- /// writeProgramToFile - This writes the current "Program" to the named
- /// bytecode file. If an error occurs, true is returned.
+ /// executeProgram - This method runs "Program", capturing the output of the
+ /// program to a file, returning the filename of the file. A recommended
+ /// filename may be optionally specified. If there is a problem with the code
+ /// generator (e.g., llc crashes), this will throw an exception.
///
- bool writeProgramToFile(const std::string &Filename, Module *M = 0) const;
+ std::string executeProgram(std::string RequestedOutputFilename = "",
+ std::string Bytecode = "",
+ const std::string &SharedObjects = "",
+ AbstractInterpreter *AI = 0,
+ bool *ProgramExitedNonzero = 0);
+ /// executeProgramWithCBE - Used to create reference output with the C
+ /// backend, if reference output is not provided. If there is a problem with
+ /// the code generator (e.g., llc crashes), this will throw an exception.
+ ///
+ std::string executeProgramWithCBE(std::string OutputFile = "");
+ /// diffProgram - This method executes the specified module and diffs the
+ /// output against the file specified by ReferenceOutputFile. If the output
+ /// is different, true is returned. If there is a problem with the code
+ /// generator (e.g., llc crashes), this will throw an exception.
+ ///
+ bool diffProgram(const std::string &BytecodeFile = "",
+ const std::string &SharedObj = "",
+ bool RemoveBytecode = false);
/// EmitProgressBytecode - This function is used to output the current Program
- /// to a file named "bugpoing-ID.bc".
+ /// to a file named "bugpoint-ID.bc".
///
void EmitProgressBytecode(const std::string &ID, bool NoFlyer = false);
-
+
+ /// deleteInstructionFromProgram - This method clones the current Program and
+ /// deletes the specified instruction from the cloned module. It then runs a
+ /// series of cleanup passes (ADCE and SimplifyCFG) to eliminate any code
+ /// which depends on the value. The modified module is then returned.
+ ///
+ Module *deleteInstructionFromProgram(const Instruction *I, unsigned Simp)
+ const;
+
+ /// performFinalCleanups - This method clones the current Program and performs
+ /// a series of cleanups intended to get rid of extra cruft on the module. If
+ /// the MayModifySemantics argument is true, then the cleanups is allowed to
+ /// modify how the code behaves.
+ ///
+ Module *performFinalCleanups(Module *M, bool MayModifySemantics = false);
+
+ /// ExtractLoop - Given a module, extract up to one loop from it into a new
+ /// function. This returns null if there are no extractable loops in the
+ /// program or if the loop extractor crashes.
+ Module *ExtractLoop(Module *M);
+
+ /// ExtractMappedBlocksFromModule - Extract all but the specified basic blocks
+ /// into their own functions. The only detail is that M is actually a module
+ /// cloned from the one the BBs are in, so some mapping needs to be performed.
+ /// If this operation fails for some reason (ie the implementation is buggy),
+ /// this function should return null, otherwise it returns a new Module.
+ Module *ExtractMappedBlocksFromModule(const std::vector<BasicBlock*> &BBs,
+ Module *M);
+
+ /// runPassesOn - Carefully run the specified set of pass on the specified
+ /// module, returning the transformed module on success, or a null pointer on
+ /// failure. If AutoDebugCrashes is set to true, then bugpoint will
+ /// automatically attempt to track down a crashing pass if one exists, and
+ /// this method will never return null.
+ Module *runPassesOn(Module *M, const std::vector<const PassInfo*> &Passes,
+ bool AutoDebugCrashes = false);
+
/// runPasses - Run the specified passes on Program, outputting a bytecode
/// file and writting the filename into OutputFile if successful. If the
/// optimizations fail for some reason (optimizer crashes), return true,
///
bool runPasses(const std::vector<const PassInfo*> &PassesToRun,
std::string &OutputFilename, bool DeleteOutput = false,
- bool Quiet = false) const;
+ bool Quiet = false) const;
+
+ /// writeProgramToFile - This writes the current "Program" to the named
+ /// bytecode file. If an error occurs, true is returned.
+ ///
+ bool writeProgramToFile(const std::string &Filename, Module *M = 0) const;
+private:
/// runPasses - Just like the method above, but this just returns true or
/// false indicating whether or not the optimizer crashed on the specified
/// input (true = crashed).
return runPasses(PassesToRun, Filename, DeleteOutput);
}
- /// PrintFunctionList - prints out list of problematic functions
- ///
- static void PrintFunctionList(const std::vector<Function*> &Funcs);
-
- /// deleteInstructionFromProgram - This method clones the current Program and
- /// deletes the specified instruction from the cloned module. It then runs a
- /// series of cleanup passes (ADCE and SimplifyCFG) to eliminate any code
- /// which depends on the value. The modified module is then returned.
- ///
- Module *deleteInstructionFromProgram(Instruction *I, unsigned Simp) const;
-
- /// performFinalCleanups - This method clones the current Program and performs
- /// a series of cleanups intended to get rid of extra cruft on the module
- /// before handing it to the user...
- ///
- Module *performFinalCleanups() const;
+ /// runAsChild - The actual "runPasses" guts that runs in a child process.
+ int runPassesAsChild(const std::vector<const PassInfo*> &PassesToRun);
/// initializeExecutionEnvironment - This method is used to set up the
/// environment for executing LLVM programs.
///
bool initializeExecutionEnvironment();
+};
- /// executeProgram - This method runs "Program", capturing the output of the
- /// program to a file, returning the filename of the file. A recommended
- /// filename may be optionally specified.
- ///
- std::string executeProgram(std::string RequestedOutputFilename = "",
- std::string Bytecode = "",
- std::string SharedObject = "",
- AbstractInterpreter *AI = 0);
-
- /// executeProgramWithCBE - Used to create reference output with the C
- /// backend, if reference output is not provided.
- std::string executeProgramWithCBE(std::string RequestedOutputFilename = "",
- std::string Bytecode = "",
- std::string SharedObject = "");
+/// ParseInputFile - Given a bytecode or assembly input filename, parse and
+/// return it, or return null if not possible.
+///
+Module *ParseInputFile(const std::string &InputFilename);
- /// diffProgram - This method executes the specified module and diffs the
- /// output against the file specified by ReferenceOutputFile. If the output
- /// is different, true is returned.
- ///
- bool diffProgram(const std::string &BytecodeFile = "",
- const std::string &SharedObject = "",
- bool RemoveBytecode = false);
-};
/// 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 getPassesString(const std::vector<const PassInfo*> &Passes);
+/// PrintFunctionList - prints out list of problematic functions
+///
+void PrintFunctionList(const std::vector<Function*> &Funcs);
+
// DeleteFunctionBody - "Remove" the function by deleting all of it's basic
// blocks, making it external.
//
void DeleteFunctionBody(Function *F);
+/// SplitFunctionsOutOfModule - Given a module and a list of functions in the
+/// module, split the functions OUT of the specified module, and place them in
+/// the new module.
+Module *SplitFunctionsOutOfModule(Module *M, const std::vector<Function*> &F);
+
+} // End llvm namespace
+
#endif
projects / oota-llvm.git / blobdiff