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afade9294a
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4789 91177308-0d34-0410-b5e6-96231b3b80d8
110 lines
4.1 KiB
C++
110 lines
4.1 KiB
C++
//===- BugDriver.h - Top-Level BugPoint class -------------------*- C++ -*-===//
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//
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// This class contains all of the shared state and information that is used by
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// the BugPoint tool to track down errors in optimizations. This class is the
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// main driver class that invokes all sub-functionality.
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//
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//===----------------------------------------------------------------------===//
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#ifndef BUGDRIVER_H
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#define BUGDRIVER_H
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#include <vector>
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#include <string>
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class PassInfo;
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class Module;
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class Function;
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class BugDriver {
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const std::string ToolName; // Name of bugpoint
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Module *Program; // The raw program, linked together
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std::vector<const PassInfo*> PassesToRun;
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public:
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BugDriver(const char *toolname) : ToolName(toolname), Program(0) {}
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// Set up methods... these methods are used to copy information about the
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// command line arguments into instance variables of BugDriver.
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//
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bool addSources(const std::vector<std::string> &FileNames);
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template<class It>
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void addPasses(It I, It E) { PassesToRun.insert(PassesToRun.end(), I, E); }
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/// run - The top level method that is invoked after all of the instance
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/// variables are set up from command line arguments.
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///
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bool run();
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/// debugCrash - This method is called when some pass crashes on input. It
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/// attempts to prune down the testcase to something reasonable, and figure
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/// out exactly which pass is crashing.
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///
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bool debugCrash();
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/// debugPassCrash - This method is called when the specified pass crashes on
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/// Program as input. It tries to reduce the testcase to something that still
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/// crashes, but it smaller.
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///
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bool debugPassCrash(const PassInfo *PI);
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/// debugMiscompilation - This method is used when the passes selected are not
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/// crashing, but the generated output is semantically different from the
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/// input.
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bool debugMiscompilation();
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private:
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/// ParseInputFile - Given a bytecode or assembly input filename, parse and
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/// return it, or return null if not possible.
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///
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Module *ParseInputFile(const std::string &InputFilename) const;
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/// removeFile - Delete the specified file
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///
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void removeFile(const std::string &Filename) const;
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/// writeProgramToFile - This writes the current "Program" to the named
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/// bytecode file. If an error occurs, true is returned.
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///
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bool writeProgramToFile(const std::string &Filename) const;
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/// EmitProgressBytecode - This function is used to output the current Program
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/// to a file named "bugpoing-ID.bc".
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///
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void EmitProgressBytecode(const PassInfo *Pass, const std::string &ID);
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/// runPasses - Run the specified passes on Program, outputting a bytecode
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/// file and writting the filename into OutputFile if successful. If the
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/// optimizations fail for some reason (optimizer crashes), return true,
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/// otherwise return false. If DeleteOutput is set to true, the bytecode is
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/// deleted on success, and the filename string is undefined. This prints to
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/// cout a single line message indicating whether compilation was successful
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/// or failed.
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///
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bool runPasses(const std::vector<const PassInfo*> &PassesToRun,
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std::string &OutputFilename, bool DeleteOutput = false) const;
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/// runPasses - Just like the method above, but this just returns true or
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/// false indicating whether or not the optimizer crashed on the specified
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/// input (true = crashed).
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///
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bool runPasses(const std::vector<const PassInfo*> &PassesToRun,
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bool DeleteOutput = true) const {
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std::string Filename;
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return runPasses(PassesToRun, Filename, DeleteOutput);
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}
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/// runPass - Run only the specified pass on the program.
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bool runPass(const PassInfo *P, bool DeleteOutput = true) const {
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return runPasses(std::vector<const PassInfo*>(1, P), DeleteOutput);
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}
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/// extractFunctionFromModule - This method is used to extract the specified
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/// (non-external) function from the current program, slim down the module,
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/// and then return it. This does not modify Program at all, it modifies a
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/// copy, which it returns.
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Module *extractFunctionFromModule(Function *F) const;
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};
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#endif
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