static void addOptimizationPasses(T *PM)
{
#ifdef JL_DEBUG_BUILD
PM->add(createVerifierPass());
#endif
#ifdef __has_feature
# if __has_feature(address_sanitizer)
# if defined(LLVM37) && !defined(LLVM38)
// LLVM 3.7 BUG: ASAN pass doesn't properly initialize its dependencies
initializeTargetLibraryInfoWrapperPassPass(*PassRegistry::getPassRegistry());
# endif
PM->add(createAddressSanitizerFunctionPass());
# endif
# if __has_feature(memory_sanitizer)
PM->add(llvm::createMemorySanitizerPass(true));
# endif
#endif
if (jl_options.opt_level <= 1) {
return;
}
#ifdef LLVM37
PM->add(createTargetTransformInfoWrapperPass(jl_TargetMachine->getTargetIRAnalysis()));
#else
jl_TargetMachine->addAnalysisPasses(*PM);
#endif
#ifdef LLVM38
PM->add(createTypeBasedAAWrapperPass());
#else
PM->add(createTypeBasedAliasAnalysisPass());
#endif
if (jl_options.opt_level >= 3) {
#ifdef LLVM38
PM->add(createBasicAAWrapperPass());
#else
PM->add(createBasicAliasAnalysisPass());
#endif
}
// list of passes from vmkit
PM->add(createCFGSimplificationPass()); // Clean up disgusting code
PM->add(createPromoteMemoryToRegisterPass());// Kill useless allocas
#ifndef INSTCOMBINE_BUG
PM->add(createInstructionCombiningPass()); // Cleanup for scalarrepl.
#endif
PM->add(createSROAPass()); // Break up aggregate allocas
#ifndef INSTCOMBINE_BUG
PM->add(createInstructionCombiningPass()); // Cleanup for scalarrepl.
#endif
PM->add(createJumpThreadingPass()); // Thread jumps.
// NOTE: CFG simp passes after this point seem to hurt native codegen.
// See issue #6112. Should be re-evaluated when we switch to MCJIT.
//PM->add(createCFGSimplificationPass()); // Merge & remove BBs
#ifndef INSTCOMBINE_BUG
PM->add(createInstructionCombiningPass()); // Combine silly seq's
#endif
//PM->add(createCFGSimplificationPass()); // Merge & remove BBs
PM->add(createReassociatePass()); // Reassociate expressions
// this has the potential to make some things a bit slower
//PM->add(createBBVectorizePass());
PM->add(createEarlyCSEPass()); //// ****
PM->add(createLoopIdiomPass()); //// ****
PM->add(createLoopRotatePass()); // Rotate loops.
// LoopRotate strips metadata from terminator, so run LowerSIMD afterwards
PM->add(createLowerSimdLoopPass()); // Annotate loop marked with "simdloop" as LLVM parallel loop
PM->add(createLICMPass()); // Hoist loop invariants
PM->add(createLoopUnswitchPass()); // Unswitch loops.
// Subsequent passes not stripping metadata from terminator
#ifndef INSTCOMBINE_BUG
PM->add(createInstructionCombiningPass());
#endif
PM->add(createIndVarSimplifyPass()); // Canonicalize indvars
PM->add(createLoopDeletionPass()); // Delete dead loops
#if defined(LLVM35)
PM->add(createSimpleLoopUnrollPass()); // Unroll small loops
#else
PM->add(createLoopUnrollPass()); // Unroll small loops
#endif
#if !defined(LLVM35) && !defined(INSTCOMBINE_BUG)
PM->add(createLoopVectorizePass()); // Vectorize loops
#endif
//PM->add(createLoopStrengthReducePass()); // (jwb added)
#ifndef INSTCOMBINE_BUG
PM->add(createInstructionCombiningPass()); // Clean up after the unroller
#endif
PM->add(createGVNPass()); // Remove redundancies
//PM->add(createMemCpyOptPass()); // Remove memcpy / form memset
PM->add(createSCCPPass()); // Constant prop with SCCP
// Run instcombine after redundancy elimination to exploit opportunities
// opened up by them.
PM->add(createSinkingPass()); ////////////// ****
PM->add(createInstructionSimplifierPass());///////// ****
#ifndef INSTCOMBINE_BUG
PM->add(createInstructionCombiningPass());
#endif
PM->add(createJumpThreadingPass()); // Thread jumps
PM->add(createDeadStoreEliminationPass()); // Delete dead stores
#if !defined(INSTCOMBINE_BUG)
if (jl_options.opt_level >= 3) {
#ifdef LLVM39
initializeDemandedBitsPass(*PassRegistry::getPassRegistry());
#endif
PM->add(createSLPVectorizerPass()); // Vectorize straight-line code
}
#endif
PM->add(createAggressiveDCEPass()); // Delete dead instructions
#if !defined(INSTCOMBINE_BUG)
if (jl_options.opt_level >= 3)
PM->add(createInstructionCombiningPass()); // Clean up after SLP loop vectorizer
#endif
#if defined(LLVM35)
PM->add(createLoopVectorizePass()); // Vectorize loops
PM->add(createInstructionCombiningPass()); // Clean up after loop vectorizer
#endif
//PM->add(createCFGSimplificationPass()); // Merge & remove BBs
}
int main(int argc, char **argv) {
llvm::llvm_shutdown_obj shutdown; // calls llvm_shutdown() on exit
llvm::cl::ParseCommandLineOptions(argc, argv, "llvm2bpl - LLVM bitcode to Boogie transformation\n");
llvm::sys::PrintStackTraceOnErrorSignal(argv[0]);
llvm::PrettyStackTraceProgram PSTP(argc, argv);
llvm::EnableDebugBuffering = true;
llvm::SMDiagnostic err;
llvm::LLVMContext Context;
InitializeAllTargets();
InitializeAllTargetMCs();
InitializeAllAsmPrinters();
InitializeAllAsmParsers();
std::unique_ptr<llvm::Module> module = llvm::parseIRFile(InputFilename, err, Context);
if (!err.getMessage().empty())
check("Problem reading input bitcode/IR: " + err.getMessage().str());
auto &L = module.get()->getDataLayoutStr();
if (L.empty())
module.get()->setDataLayout(DefaultDataLayout);
///////////////////////////////
// initialise and run passes //
///////////////////////////////
llvm::PassRegistry &Registry = *llvm::PassRegistry::getPassRegistry();
llvm::initializeAnalysis(Registry);
llvm::legacy::PassManager pass_manager;
pass_manager.add(llvm::createLowerSwitchPass());
//pass_manager.add(llvm::createCFGSimplificationPass());
pass_manager.add(llvm::createInternalizePass());
pass_manager.add(llvm::createPromoteMemoryToRegisterPass());
if (StaticUnroll) {
pass_manager.add(llvm::createLoopSimplifyPass());
pass_manager.add(llvm::createLoopRotatePass());
//pass_manager.add(llvm::createIndVarSimplifyPass());
pass_manager.add(llvm::createLoopUnrollPass(32767));
}
pass_manager.add(new llvm::StructRet());
pass_manager.add(new llvm::SimplifyEV());
pass_manager.add(new llvm::SimplifyIV());
pass_manager.add(new smack::ExtractContracts());
pass_manager.add(new smack::VerifierCodeMetadata());
pass_manager.add(llvm::createDeadCodeEliminationPass());
pass_manager.add(new smack::CodifyStaticInits());
if (!Modular) {
pass_manager.add(new smack::RemoveDeadDefs());
}
pass_manager.add(new llvm::MergeArrayGEP());
// pass_manager.add(new smack::SimplifyLibCalls());
pass_manager.add(new llvm::Devirtualize());
if (SplitStructs)
pass_manager.add(new smack::SplitAggregateLoadStore());
if (smack::SmackOptions::MemorySafety) {
pass_manager.add(new smack::MemorySafetyChecker());
}
if (SignedIntegerOverflow)
pass_manager.add(new smack::SignedIntegerOverflowChecker());
if(smack::SmackOptions::AddTiming){
Triple ModuleTriple(module->getTargetTriple());
assert (ModuleTriple.getArch() && "Module has no defined architecture: unable to add timing annotations");
const TargetOptions Options; /* = InitTargetOptionsFromCodeGenFlags();*/
std::string CPUStr = ""; /*getCPUStr();*/
std::string FeaturesStr = ""; /*getFeaturesStr();*/
TargetMachine *Machine = GetTargetMachine(ModuleTriple, CPUStr, FeaturesStr, Options);
assert(Machine && "Module did not have a Target Machine: Cannot set up timing pass");
// Add an appropriate TargetLibraryInfo pass for the module's triple.
TargetLibraryInfoImpl TLII(ModuleTriple);
pass_manager.add(new TargetLibraryInfoWrapperPass(TLII));
// Add internal analysis passes from the target machine.
pass_manager.add(createTargetTransformInfoWrapperPass(Machine->getTargetIRAnalysis()));
pass_manager.add(new smack::AddTiming());
}
std::vector<tool_output_file*> files;
if (!FinalIrFilename.empty()) {
std::error_code EC;
auto F = new tool_output_file(FinalIrFilename.c_str(), EC, sys::fs::F_None);
if (EC) check(EC.message());
F->keep();
files.push_back(F);
pass_manager.add(llvm::createPrintModulePass(F->os()));
}
if (!OutputFilename.empty()) {
std::error_code EC;
auto F = new tool_output_file(OutputFilename.c_str(), EC, sys::fs::F_None);
if (EC) check(EC.message());
F->keep();
files.push_back(F);
pass_manager.add(new smack::SmackModuleGenerator());
pass_manager.add(new smack::BplFilePrinter(F->os()));
}
pass_manager.run(*module.get());
for (auto F : files)
delete F;
return 0;
}