fix ya.make

1 files changed, 309 insertions, 0 deletions

diff --git a/contrib/libs/llvm12/tools/bugpoint/BugDriver.h b/contrib/libs/llvm12/tools/bugpoint/BugDriver.h
new file mode 100644
index 0000000000..fe5201eb2e
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+++ b/contrib/libs/llvm12/tools/bugpoint/BugDriver.h
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+//===- BugDriver.h - Top-Level BugPoint class -------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// 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.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TOOLS_BUGPOINT_BUGDRIVER_H
+#define LLVM_TOOLS_BUGPOINT_BUGDRIVER_H
+
+#include "llvm/IR/ValueMap.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Transforms/Utils/ValueMapper.h"
+#include <memory>
+#include <string>
+#include <vector>
+
+namespace llvm {
+
+class Value;
+class PassInfo;
+class Module;
+class GlobalVariable;
+class Function;
+class BasicBlock;
+class AbstractInterpreter;
+class Instruction;
+class LLVMContext;
+
+class DebugCrashes;
+
+class CC;
+
+extern bool DisableSimplifyCFG;
+
+/// BugpointIsInterrupted - Set to true when the user presses ctrl-c.
+///
+extern bool BugpointIsInterrupted;
+
+class BugDriver {
+  LLVMContext &Context;
+  const char *ToolName;            // argv[0] of bugpoint
+  std::string ReferenceOutputFile; // Name of `good' output file
+  std::unique_ptr<Module> Program; // The raw program, linked together
+  std::vector<std::string> PassesToRun;
+  AbstractInterpreter *Interpreter;     // How to run the program
+  AbstractInterpreter *SafeInterpreter; // To generate reference output, etc.
+  CC *cc;
+  bool run_find_bugs;
+  unsigned Timeout;
+  unsigned MemoryLimit;
+  bool UseValgrind;
+
+  // FIXME: sort out public/private distinctions...
+  friend class ReducePassList;
+  friend class ReduceMisCodegenFunctions;
+
+public:
+  BugDriver(const char *toolname, bool find_bugs, unsigned timeout,
+            unsigned memlimit, bool use_valgrind, LLVMContext &ctxt);
+  ~BugDriver();
+
+  const char *getToolName() const { return ToolName; }
+
+  LLVMContext &getContext() const { return Context; }
+
+  // Set up methods... these methods are used to copy information about the
+  // command line arguments into instance variables of BugDriver.
+  //
+  bool addSources(const std::vector<std::string> &FileNames);
+  void addPass(std::string p) { PassesToRun.push_back(std::move(p)); }
+  void setPassesToRun(const std::vector<std::string> &PTR) {
+    PassesToRun = PTR;
+  }
+  const std::vector<std::string> &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. The \p as_child argument
+  /// indicates whether the driver is to run in parent mode or child mode.
+  ///
+  Error run();
+
+  /// 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.
+  ///
+  Error debugOptimizerCrash(const std::string &ID = "passes");
+
+  /// 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.
+  Error debugCodeGeneratorCrash();
+
+  /// debugMiscompilation - This method is used when the passes selected are not
+  /// crashing, but the generated output is semantically different from the
+  /// input.
+  Error debugMiscompilation();
+
+  /// debugPassMiscompilation - This method is called when the specified pass
+  /// miscompiles Program as input.  It tries to reduce the testcase to
+  /// something that smaller that still miscompiles the program.
+  /// ReferenceOutput contains the filename of the file containing the output we
+  /// are to match.
+  ///
+  bool debugPassMiscompilation(const PassInfo *ThePass,
+                               const std::string &ReferenceOutput);
+
+  /// compileSharedObject - This method creates a SharedObject from a given
+  /// BitcodeFile for debugging a code generator.
+  ///
+  Expected<std::string> compileSharedObject(const std::string &BitcodeFile);
+
+  /// 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.
+  Error debugCodeGenerator();
+
+  /// isExecutingJIT - Returns true if bugpoint is currently testing the JIT
+  ///
+  bool isExecutingJIT();
+
+  Module &getProgram() const { return *Program; }
+
+  /// Set the current module to the specified module, returning the old one.
+  std::unique_ptr<Module> swapProgramIn(std::unique_ptr<Module> M);
+
+  AbstractInterpreter *switchToSafeInterpreter() {
+    AbstractInterpreter *Old = Interpreter;
+    Interpreter = (AbstractInterpreter *)SafeInterpreter;
+    return Old;
+  }
+
+  void switchToInterpreter(AbstractInterpreter *AI) { Interpreter = AI; }
+
+  /// 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(std::unique_ptr<Module> M);
+
+  /// Try to compile the specified module. This is used for code generation
+  /// crash testing.
+  Error compileProgram(Module &M) const;
+
+  /// This method runs "Program", capturing the output of the program to a file.
+  /// A recommended filename may be optionally specified.
+  Expected<std::string> executeProgram(const Module &Program,
+                                       std::string OutputFilename,
+                                       std::string Bitcode,
+                                       const std::string &SharedObjects,
+                                       AbstractInterpreter *AI) const;
+
+  /// Used to create reference output with the "safe" backend, if reference
+  /// output is not provided.  If there is a problem with the code generator
+  /// (e.g., llc crashes), this will return false and set Error.
+  Expected<std::string>
+  executeProgramSafely(const Module &Program,
+                       const std::string &OutputFile) const;
+
+  /// Calls compileProgram and then records the output into ReferenceOutputFile.
+  /// Returns true if reference file created, false otherwise. Note:
+  /// initializeExecutionEnvironment should be called BEFORE this function.
+  Error createReferenceFile(Module &M, const std::string &Filename =
+                                           "bugpoint.reference.out-%%%%%%%");
+
+  /// This method executes the specified module and diffs the output against the
+  /// file specified by ReferenceOutputFile.  If the output is different, 1 is
+  /// returned.  If there is a problem with the code generator (e.g., llc
+  /// crashes), this will return -1 and set Error.
+  Expected<bool> diffProgram(const Module &Program,
+                             const std::string &BitcodeFile = "",
+                             const std::string &SharedObj = "",
+                             bool RemoveBitcode = false) const;
+
+  /// This function is used to output M to a file named "bugpoint-ID.bc".
+  void EmitProgressBitcode(const Module &M, const std::string &ID,
+                           bool NoFlyer = false) const;
+
+  /// 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.
+  ///
+  std::unique_ptr<Module> deleteInstructionFromProgram(const Instruction *I,
+                                                       unsigned Simp);
+
+  /// 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.
+  ///
+  std::unique_ptr<Module> performFinalCleanups(std::unique_ptr<Module> M,
+                                               bool MayModifySemantics = false);
+
+  /// 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.
+  std::unique_ptr<Module> extractLoop(Module *M);
+
+  /// 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.
+  std::unique_ptr<Module>
+  extractMappedBlocksFromModule(const std::vector<BasicBlock *> &BBs,
+                                Module *M);
+
+  /// Carefully run the specified set of pass on the specified/ module,
+  /// returning the transformed module on success, or a null pointer on failure.
+  std::unique_ptr<Module> runPassesOn(Module *M,
+                                      const std::vector<std::string> &Passes,
+                                      ArrayRef<std::string> ExtraArgs = {});
+
+  /// runPasses - Run the specified passes on Program, outputting a bitcode
+  /// file and writting the filename into OutputFile if successful.  If the
+  /// optimizations fail for some reason (optimizer crashes), return true,
+  /// otherwise return false.  If DeleteOutput is set to true, the bitcode is
+  /// deleted on success, and the filename string is undefined.  This prints to
+  /// outs() a single line message indicating whether compilation was successful
+  /// or failed, unless Quiet is set.  ExtraArgs specifies additional arguments
+  /// to pass to the child bugpoint instance.
+  ///
+  bool runPasses(Module &Program, const std::vector<std::string> &PassesToRun,
+                 std::string &OutputFilename, bool DeleteOutput = false,
+                 bool Quiet = false,
+                 ArrayRef<std::string> ExtraArgs = {}) const;
+
+  /// 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).  Does not produce any output.
+  ///
+  bool runPasses(Module &M, const std::vector<std::string> &PassesToRun) const {
+    std::string Filename;
+    return runPasses(M, PassesToRun, Filename, true);
+  }
+
+  /// Take the specified pass list and create different combinations of passes
+  /// to compile the program with. Compile the program with each set and mark
+  /// test to see if it compiled correctly. If the passes compiled correctly
+  /// output nothing and rearrange the passes into a new order. If the passes
+  /// did not compile correctly, output the command required to recreate the
+  /// failure.
+  Error runManyPasses(const std::vector<std::string> &AllPasses);
+
+  /// This writes the current "Program" to the named bitcode file.  If an error
+  /// occurs, true is returned.
+  bool writeProgramToFile(const std::string &Filename, const Module &M) const;
+  bool writeProgramToFile(const std::string &Filename, int FD,
+                          const Module &M) const;
+  bool writeProgramToFile(int FD, const Module &M) const;
+
+private:
+  /// initializeExecutionEnvironment - This method is used to set up the
+  /// environment for executing LLVM programs.
+  ///
+  Error initializeExecutionEnvironment();
+};
+
+struct DiscardTemp {
+  sys::fs::TempFile &File;
+  ~DiscardTemp();
+};
+
+///  Given a bitcode or assembly input filename, parse and return it, or return
+///  null if not possible.
+///
+std::unique_ptr<Module> parseInputFile(StringRef InputFilename,
+                                       LLVMContext &ctxt);
+
+/// 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<std::string> &Passes);
+
+/// PrintFunctionList - prints out list of problematic functions
+///
+void PrintFunctionList(const std::vector<Function *> &Funcs);
+
+/// PrintGlobalVariableList - prints out list of problematic global variables
+///
+void PrintGlobalVariableList(const std::vector<GlobalVariable *> &GVs);
+
+// DeleteGlobalInitializer - "Remove" the global variable by deleting its
+// initializer, making it external.
+//
+void DeleteGlobalInitializer(GlobalVariable *GV);
+
+// DeleteFunctionBody - "Remove" the function by deleting all of it's basic
+// blocks, making it external.
+//
+void DeleteFunctionBody(Function *F);
+
+/// 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.
+std::unique_ptr<Module>
+SplitFunctionsOutOfModule(Module *M, const std::vector<Function *> &F,
+                          ValueToValueMapTy &VMap);
+
+} // End llvm namespace
+
+#endif