#include "BugDriver.h"
#include "ListReducer.h"
#include "ToolRunner.h"
-#include "llvm/Analysis/Verifier.h"
#include "llvm/Config/config.h" // for HAVE_LINK_R
-#include "llvm/Constants.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Instructions.h"
-#include "llvm/Linker.h"
-#include "llvm/Module.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/Verifier.h"
+#include "llvm/Linker/Linker.h"
#include "llvm/Pass.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FileUtilities.h"
public:
ReduceMiscompilingPasses(BugDriver &bd) : BD(bd) {}
- virtual TestResult doTest(std::vector<std::string> &Prefix,
- std::vector<std::string> &Suffix,
- std::string &Error);
+ TestResult doTest(std::vector<std::string> &Prefix,
+ std::vector<std::string> &Suffix,
+ std::string &Error) override;
};
}
return InternalError;
if (Diff) {
outs() << " nope.\n";
- sys::Path(BitcodeResult).eraseFromDisk();
+ sys::fs::remove(BitcodeResult);
return KeepPrefix;
}
outs() << " yup.\n"; // No miscompilation!
// Ok, so now we know that the prefix passes work, try running the suffix
// passes on the result of the prefix passes.
//
- OwningPtr<Module> PrefixOutput(ParseInputFile(BitcodeResult,
- BD.getContext()));
- if (PrefixOutput == 0) {
+ std::unique_ptr<Module> PrefixOutput =
+ parseInputFile(BitcodeResult, BD.getContext());
+ if (!PrefixOutput) {
errs() << BD.getToolName() << ": Error reading bitcode file '"
<< BitcodeResult << "'!\n";
exit(1);
}
- sys::Path(BitcodeResult).eraseFromDisk(); // No longer need the file on disk
+ sys::fs::remove(BitcodeResult);
// Don't check if there are no passes in the suffix.
if (Suffix.empty())
<< "' passes compile correctly after the '"
<< getPassesString(Prefix) << "' passes: ";
- OwningPtr<Module> OriginalInput(BD.swapProgramIn(PrefixOutput.take()));
+ std::unique_ptr<Module> OriginalInput(
+ BD.swapProgramIn(PrefixOutput.release()));
if (BD.runPasses(BD.getProgram(), Suffix, BitcodeResult, false/*delete*/,
true/*quiet*/)) {
errs() << " Error running this sequence of passes"
// Otherwise, we must not be running the bad pass anymore.
outs() << " yup.\n"; // No miscompilation!
// Restore orig program & free test.
- delete BD.swapProgramIn(OriginalInput.take());
+ delete BD.swapProgramIn(OriginalInput.release());
return NoFailure;
}
std::string &))
: BD(bd), TestFn(F) {}
- virtual TestResult doTest(std::vector<Function*> &Prefix,
- std::vector<Function*> &Suffix,
- std::string &Error) {
+ TestResult doTest(std::vector<Function*> &Prefix,
+ std::vector<Function*> &Suffix,
+ std::string &Error) override {
if (!Suffix.empty()) {
bool Ret = TestFuncs(Suffix, Error);
if (!Error.empty())
bool DeleteInputs, std::string &Error,
bool &Broken) {
// Link the two portions of the program back to together.
- std::string ErrorMsg;
if (!DeleteInputs) {
M1 = CloneModule(M1);
M2 = CloneModule(M2);
}
- if (Linker::LinkModules(M1, M2, Linker::DestroySource, &ErrorMsg)) {
- errs() << BD.getToolName() << ": Error linking modules together:"
- << ErrorMsg << '\n';
+ if (Linker::linkModules(*M1, *M2))
exit(1);
- }
delete M2; // We are done with this module.
// Execute the program.
if (!Error.empty()) {
// Delete the linked module
delete M1;
- return NULL;
+ return nullptr;
}
return M1;
}
Module *ToOptimize = SplitFunctionsOutOfModule(ToNotOptimize,
MiscompiledFunctions,
VMap);
- Module *ToOptimizeLoopExtracted = BD.ExtractLoop(ToOptimize);
+ Module *ToOptimizeLoopExtracted = BD.extractLoop(ToOptimize).release();
if (!ToOptimizeLoopExtracted) {
// If the loop extractor crashed or if there were no extractible loops,
// then this chapter of our odyssey is over with.
// extraction.
AbstractInterpreter *AI = BD.switchToSafeInterpreter();
bool Failure;
- Module *New = TestMergedProgram(BD, ToOptimizeLoopExtracted, ToNotOptimize,
- false, Error, Failure);
+ Module *New = TestMergedProgram(BD, ToOptimizeLoopExtracted,
+ ToNotOptimize, false, Error, Failure);
if (!New)
return false;
+
// Delete the original and set the new program.
- delete BD.swapProgramIn(New);
+ Module *Old = BD.swapProgramIn(New);
+ for (unsigned i = 0, e = MiscompiledFunctions.size(); i != e; ++i)
+ MiscompiledFunctions[i] = cast<Function>(VMap[MiscompiledFunctions[i]]);
+ delete Old;
+
if (Failure) {
BD.switchToInterpreter(AI);
<< OutputPrefix << "-loop-extract-fail-*.bc files.\n";
delete ToOptimize;
delete ToNotOptimize;
- delete ToOptimizeLoopExtracted;
return MadeChange;
}
delete ToOptimize;
outs() << " Testing after loop extraction:\n";
// Clone modules, the tester function will free them.
- Module *TOLEBackup = CloneModule(ToOptimizeLoopExtracted);
- Module *TNOBackup = CloneModule(ToNotOptimize);
+ Module *TOLEBackup = CloneModule(ToOptimizeLoopExtracted, VMap);
+ Module *TNOBackup = CloneModule(ToNotOptimize, VMap);
+
+ for (unsigned i = 0, e = MiscompiledFunctions.size(); i != e; ++i)
+ MiscompiledFunctions[i] = cast<Function>(VMap[MiscompiledFunctions[i]]);
+
Failure = TestFn(BD, ToOptimizeLoopExtracted, ToNotOptimize, Error);
if (!Error.empty())
return false;
+
+ ToOptimizeLoopExtracted = TOLEBackup;
+ ToNotOptimize = TNOBackup;
+
if (!Failure) {
outs() << "*** Loop extraction masked the problem. Undoing.\n";
// If the program is not still broken, then loop extraction did something
// that masked the error. Stop loop extraction now.
- delete TOLEBackup;
- delete TNOBackup;
+
+ std::vector<std::pair<std::string, FunctionType*> > MisCompFunctions;
+ for (Function *F : MiscompiledFunctions) {
+ MisCompFunctions.emplace_back(F->getName(), F->getFunctionType());
+ }
+
+ if (Linker::linkModules(*ToNotOptimize, *ToOptimizeLoopExtracted))
+ exit(1);
+
+ MiscompiledFunctions.clear();
+ for (unsigned i = 0, e = MisCompFunctions.size(); i != e; ++i) {
+ Function *NewF = ToNotOptimize->getFunction(MisCompFunctions[i].first);
+
+ assert(NewF && "Function not found??");
+ MiscompiledFunctions.push_back(NewF);
+ }
+
+ delete ToOptimizeLoopExtracted;
+ BD.setNewProgram(ToNotOptimize);
return MadeChange;
}
- ToOptimizeLoopExtracted = TOLEBackup;
- ToNotOptimize = TNOBackup;
outs() << "*** Loop extraction successful!\n";
for (Module::iterator I = ToOptimizeLoopExtracted->begin(),
E = ToOptimizeLoopExtracted->end(); I != E; ++I)
if (!I->isDeclaration())
- MisCompFunctions.push_back(std::make_pair(I->getName(),
- I->getFunctionType()));
+ MisCompFunctions.emplace_back(I->getName(), I->getFunctionType());
// Okay, great! Now we know that we extracted a loop and that loop
// extraction both didn't break the program, and didn't mask the problem.
// Replace the current program with the loop extracted version, and try to
// extract another loop.
- std::string ErrorMsg;
- if (Linker::LinkModules(ToNotOptimize, ToOptimizeLoopExtracted,
- Linker::DestroySource, &ErrorMsg)){
- errs() << BD.getToolName() << ": Error linking modules together:"
- << ErrorMsg << '\n';
+ if (Linker::linkModules(*ToNotOptimize, *ToOptimizeLoopExtracted))
exit(1);
- }
+
delete ToOptimizeLoopExtracted;
// All of the Function*'s in the MiscompiledFunctions list are in the old
const std::vector<Function*> &Fns)
: BD(bd), TestFn(F), FunctionsBeingTested(Fns) {}
- virtual TestResult doTest(std::vector<BasicBlock*> &Prefix,
- std::vector<BasicBlock*> &Suffix,
- std::string &Error) {
+ TestResult doTest(std::vector<BasicBlock*> &Prefix,
+ std::vector<BasicBlock*> &Suffix,
+ std::string &Error) override {
if (!Suffix.empty()) {
bool Ret = TestFuncs(Suffix, Error);
if (!Error.empty())
// Try the extraction. If it doesn't work, then the block extractor crashed
// or something, in which case bugpoint can't chase down this possibility.
- if (Module *New = BD.ExtractMappedBlocksFromModule(BBsOnClone, ToOptimize)) {
+ if (std::unique_ptr<Module> New =
+ BD.extractMappedBlocksFromModule(BBsOnClone, ToOptimize)) {
delete ToOptimize;
// Run the predicate,
// note that the predicate will delete both input modules.
- bool Ret = TestFn(BD, New, ToNotOptimize, Error);
+ bool Ret = TestFn(BD, New.get(), ToNotOptimize, Error);
delete BD.swapProgramIn(Orig);
return Ret;
}
std::vector<BasicBlock*> Blocks;
for (unsigned i = 0, e = MiscompiledFunctions.size(); i != e; ++i)
- for (Function::iterator I = MiscompiledFunctions[i]->begin(),
- E = MiscompiledFunctions[i]->end(); I != E; ++I)
- Blocks.push_back(I);
+ for (BasicBlock &BB : *MiscompiledFunctions[i])
+ Blocks.push_back(&BB);
// Use the list reducer to identify blocks that can be extracted without
// obscuring the bug. The Blocks list will end up containing blocks that must
Module *ToExtract = SplitFunctionsOutOfModule(ProgClone,
MiscompiledFunctions,
VMap);
- Module *Extracted = BD.ExtractMappedBlocksFromModule(Blocks, ToExtract);
- if (Extracted == 0) {
+ std::unique_ptr<Module> Extracted =
+ BD.extractMappedBlocksFromModule(Blocks, ToExtract);
+ if (!Extracted) {
// Weird, extraction should have worked.
errs() << "Nondeterministic problem extracting blocks??\n";
delete ProgClone;
for (Module::iterator I = Extracted->begin(), E = Extracted->end();
I != E; ++I)
if (!I->isDeclaration())
- MisCompFunctions.push_back(std::make_pair(I->getName(),
- I->getFunctionType()));
-
- std::string ErrorMsg;
- if (Linker::LinkModules(ProgClone, Extracted, Linker::DestroySource,
- &ErrorMsg)) {
- errs() << BD.getToolName() << ": Error linking modules together:"
- << ErrorMsg << '\n';
+ MisCompFunctions.emplace_back(I->getName(), I->getFunctionType());
+
+ if (Linker::linkModules(*ProgClone, *Extracted))
exit(1);
- }
- delete Extracted;
// Set the new program and delete the old one.
BD.setNewProgram(ProgClone);
// the program.
std::vector<Function*> MiscompiledFunctions;
Module *Prog = BD.getProgram();
- for (Module::iterator I = Prog->begin(), E = Prog->end(); I != E; ++I)
- if (!I->isDeclaration())
- MiscompiledFunctions.push_back(I);
+ for (Function &F : *Prog)
+ if (!F.isDeclaration())
+ MiscompiledFunctions.push_back(&F);
// Do the reduction...
if (!BugpointIsInterrupted)
// Run the optimization passes on ToOptimize, producing a transformed version
// of the functions being tested.
outs() << " Optimizing functions being tested: ";
- Module *Optimized = BD.runPassesOn(Test, BD.getPassesToRun(),
- /*AutoDebugCrashes*/true);
+ std::unique_ptr<Module> Optimized = BD.runPassesOn(Test, BD.getPassesToRun(),
+ /*AutoDebugCrashes*/ true);
outs() << "done.\n";
delete Test;
outs() << " Checking to see if the merged program executes correctly: ";
bool Broken;
- Module *New = TestMergedProgram(BD, Optimized, Safe, true, Error, Broken);
+ Module *New =
+ TestMergedProgram(BD, Optimized.get(), Safe, true, Error, Broken);
if (New) {
outs() << (Broken ? " nope.\n" : " yup.\n");
// Delete the original and set the new program.
static void CleanupAndPrepareModules(BugDriver &BD, Module *&Test,
Module *Safe) {
// Clean up the modules, removing extra cruft that we don't need anymore...
- Test = BD.performFinalCleanups(Test);
+ Test = BD.performFinalCleanups(Test).release();
// If we are executing the JIT, we have several nasty issues to take care of.
if (!BD.isExecutingJIT()) return;
I = newMain->arg_begin(), E = newMain->arg_end(),
OI = oldMain->arg_begin(); I != E; ++I, ++OI) {
I->setName(OI->getName()); // Copy argument names from oldMain
- args.push_back(I);
+ args.push_back(&*I);
}
// Call the old main function and return its result
Safe->getOrInsertFunction("getPointerToNamedFunction",
Type::getInt8PtrTy(Safe->getContext()),
Type::getInt8PtrTy(Safe->getContext()),
- (Type *)0);
+ (Type *)nullptr);
// Use the function we just added to get addresses of functions we need.
for (Module::iterator F = Safe->begin(), E = Safe->end(); F != E; ++F) {
// GetElementPtr *funcName, ulong 0, ulong 0
std::vector<Constant*> GEPargs(2,
Constant::getNullValue(Type::getInt32Ty(F->getContext())));
- Value *GEP = ConstantExpr::getGetElementPtr(funcName, GEPargs);
+ Value *GEP = ConstantExpr::getGetElementPtr(InitArray->getType(),
+ funcName, GEPargs);
std::vector<Value*> ResolverArgs;
ResolverArgs.push_back(GEP);
// Save the argument list.
std::vector<Value*> Args;
- for (Function::arg_iterator i = FuncWrapper->arg_begin(),
- e = FuncWrapper->arg_end(); i != e; ++i)
- Args.push_back(i);
+ for (Argument &A : FuncWrapper->args())
+ Args.push_back(&A);
// Pass on the arguments to the real function, return its result
if (F->getReturnType()->isVoidTy()) {
std::string &Error) {
CleanupAndPrepareModules(BD, Test, Safe);
- sys::Path TestModuleBC("bugpoint.test.bc");
- std::string ErrMsg;
- if (TestModuleBC.makeUnique(true, &ErrMsg)) {
+ SmallString<128> TestModuleBC;
+ int TestModuleFD;
+ std::error_code EC = sys::fs::createTemporaryFile("bugpoint.test", "bc",
+ TestModuleFD, TestModuleBC);
+ if (EC) {
errs() << BD.getToolName() << "Error making unique filename: "
- << ErrMsg << "\n";
+ << EC.message() << "\n";
exit(1);
}
- if (BD.writeProgramToFile(TestModuleBC.str(), Test)) {
+ if (BD.writeProgramToFile(TestModuleBC.str(), TestModuleFD, Test)) {
errs() << "Error writing bitcode to `" << TestModuleBC.str()
<< "'\nExiting.";
exit(1);
FileRemover TestModuleBCRemover(TestModuleBC.str(), !SaveTemps);
// Make the shared library
- sys::Path SafeModuleBC("bugpoint.safe.bc");
- if (SafeModuleBC.makeUnique(true, &ErrMsg)) {
+ SmallString<128> SafeModuleBC;
+ int SafeModuleFD;
+ EC = sys::fs::createTemporaryFile("bugpoint.safe", "bc", SafeModuleFD,
+ SafeModuleBC);
+ if (EC) {
errs() << BD.getToolName() << "Error making unique filename: "
- << ErrMsg << "\n";
+ << EC.message() << "\n";
exit(1);
}
- if (BD.writeProgramToFile(SafeModuleBC.str(), Safe)) {
- errs() << "Error writing bitcode to `" << SafeModuleBC.str()
+ if (BD.writeProgramToFile(SafeModuleBC.str(), SafeModuleFD, Safe)) {
+ errs() << "Error writing bitcode to `" << SafeModuleBC
<< "'\nExiting.";
exit(1);
}
// Condition the modules
CleanupAndPrepareModules(*this, ToCodeGen, ToNotCodeGen);
- sys::Path TestModuleBC("bugpoint.test.bc");
- std::string ErrMsg;
- if (TestModuleBC.makeUnique(true, &ErrMsg)) {
+ SmallString<128> TestModuleBC;
+ int TestModuleFD;
+ std::error_code EC = sys::fs::createTemporaryFile("bugpoint.test", "bc",
+ TestModuleFD, TestModuleBC);
+ if (EC) {
errs() << getToolName() << "Error making unique filename: "
- << ErrMsg << "\n";
+ << EC.message() << "\n";
exit(1);
}
- if (writeProgramToFile(TestModuleBC.str(), ToCodeGen)) {
- errs() << "Error writing bitcode to `" << TestModuleBC.str()
+ if (writeProgramToFile(TestModuleBC.str(), TestModuleFD, ToCodeGen)) {
+ errs() << "Error writing bitcode to `" << TestModuleBC
<< "'\nExiting.";
exit(1);
}
delete ToCodeGen;
// Make the shared library
- sys::Path SafeModuleBC("bugpoint.safe.bc");
- if (SafeModuleBC.makeUnique(true, &ErrMsg)) {
+ SmallString<128> SafeModuleBC;
+ int SafeModuleFD;
+ EC = sys::fs::createTemporaryFile("bugpoint.safe", "bc", SafeModuleFD,
+ SafeModuleBC);
+ if (EC) {
errs() << getToolName() << "Error making unique filename: "
- << ErrMsg << "\n";
+ << EC.message() << "\n";
exit(1);
}
- if (writeProgramToFile(SafeModuleBC.str(), ToNotCodeGen)) {
- errs() << "Error writing bitcode to `" << SafeModuleBC.str()
+ if (writeProgramToFile(SafeModuleBC.str(), SafeModuleFD, ToNotCodeGen)) {
+ errs() << "Error writing bitcode to `" << SafeModuleBC
<< "'\nExiting.";
exit(1);
}
outs() << "You can reproduce the problem with the command line: \n";
if (isExecutingJIT()) {
- outs() << " lli -load " << SharedObject << " " << TestModuleBC.str();
+ outs() << " lli -load " << SharedObject << " " << TestModuleBC;
} else {
- outs() << " llc " << TestModuleBC.str() << " -o " << TestModuleBC.str()
+ outs() << " llc " << TestModuleBC << " -o " << TestModuleBC
<< ".s\n";
- outs() << " gcc " << SharedObject << " " << TestModuleBC.str()
- << ".s -o " << TestModuleBC.str() << ".exe";
+ outs() << " cc " << SharedObject << " " << TestModuleBC.str()
+ << ".s -o " << TestModuleBC << ".exe";
#if defined (HAVE_LINK_R)
outs() << " -Wl,-R.";
#endif
outs() << "\n";
- outs() << " " << TestModuleBC.str() << ".exe";
+ outs() << " " << TestModuleBC << ".exe";
}
for (unsigned i = 0, e = InputArgv.size(); i != e; ++i)
outs() << " " << InputArgv[i];
outs() << '\n';
outs() << "The shared object was created with:\n llc -march=c "
<< SafeModuleBC.str() << " -o temporary.c\n"
- << " gcc -xc temporary.c -O2 -o " << SharedObject;
+ << " cc -xc temporary.c -O2 -o " << SharedObject;
if (TargetTriple.getArch() == Triple::sparc)
outs() << " -G"; // Compile a shared library, `-G' for Sparc
else
projects / oota-llvm.git / blobdiff