slang_backend.cpp revision 6315f76e3cc6ff2d012d1183a0b030d4ff0dc808
16315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr#include "slang_backend.h" 2462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 39ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/Module.h" 49ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/Metadata.h" 59ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/LLVMContext.h" 6462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 79ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/Target/TargetMachine.h" 89ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/Target/TargetOptions.h" 99ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/Target/TargetRegistry.h" 109ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/Target/SubtargetFeature.h" 11462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 129ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/CodeGen/RegAllocRegistry.h" 139ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/CodeGen/SchedulerRegistry.h" 14462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 159ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/Assembly/PrintModulePass.h" 169ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/Bitcode/ReaderWriter.h" 17462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 189ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "clang/AST/Decl.h" 199ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "clang/AST/DeclGroup.h" 209ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "clang/AST/ASTContext.h" 21462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 229ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "clang/Basic/TargetInfo.h" 239ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "clang/Basic/Diagnostic.h" 249ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "clang/Basic/TargetOptions.h" 25462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 269ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "clang/Frontend/FrontendDiagnostic.h" 27462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 289ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "clang/CodeGen/ModuleBuilder.h" 29462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 306315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr#include "slang.h" 316315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr 329ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liaousing namespace slang; 33462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 34462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liaobool Backend::CreateCodeGenPasses() { 359ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (mOutputType != SlangCompilerOutput_Assembly && 369ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mOutputType != SlangCompilerOutput_Obj) 379ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return true; 38462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 399ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Now we add passes for code emitting 409ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (mCodeGenPasses) { 41462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao return true; 429ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } else { 439ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mCodeGenPasses = new llvm::FunctionPassManager(mpModule); 449ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mCodeGenPasses->add(new llvm::TargetData(*mpTargetData)); 459ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 469ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 479ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Create the TargetMachine for generating code. 489ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao std::string Triple = mpModule->getTargetTriple(); 499ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 509ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao std::string Error; 519ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao const llvm::Target* TargetInfo = 529ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::TargetRegistry::lookupTarget(Triple, Error); 536315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr if (TargetInfo == NULL) { 549ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mDiags.Report(clang::diag::err_fe_unable_to_create_target) << Error; 559ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return false; 569ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 579ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 589ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::NoFramePointerElim = mCodeGenOpts.DisableFPElim; 599ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 609ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Use hardware FPU. 619ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // 629ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // FIXME: Need to detect the CPU capability and decide whether to use softfp. 639ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // To use softfp, change following 2 lines to 649ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // 659ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // llvm::FloatABIType = llvm::FloatABI::Soft; 669ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // llvm::UseSoftFloat = true; 679ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::FloatABIType = llvm::FloatABI::Hard; 689ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::UseSoftFloat = false; 699ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 709ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // BCC needs all unknown symbols resolved at compilation time. So we don't 719ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // need any relocation model. 729ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::TargetMachine::setRelocationModel(llvm::Reloc::Static); 739ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 749ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 759ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // The target with pointer size greater than 32 (e.g. x86_64 architecture) may 769ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // need large data address model 779ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (mpTargetData->getPointerSizeInBits() > 32) 789ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::TargetMachine::setCodeModel(llvm::CodeModel::Medium); 799ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao else 809ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // This is set for the linker (specify how large of the virtual addresses we 819ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // can access for all unknown symbols.) 829ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 839ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::TargetMachine::setCodeModel(llvm::CodeModel::Small); 849ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 859ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Setup feature string 869ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao std::string FeaturesStr; 879ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (mTargetOpts.CPU.size() || mTargetOpts.Features.size()) { 889ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::SubtargetFeatures Features; 899ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 909ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao Features.setCPU(mTargetOpts.CPU); 919ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 929ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao for (std::vector<std::string>::const_iterator 939ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I = mTargetOpts.Features.begin(), E = mTargetOpts.Features.end(); 949ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I != E; 959ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I++) 969ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao Features.AddFeature(*I); 979ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 989ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao FeaturesStr = Features.getString(); 999ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 1009ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::TargetMachine *TM = 1019ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao TargetInfo->createTargetMachine(Triple, FeaturesStr); 1029ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 1039ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Register scheduler 1049ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::RegisterScheduler::setDefault(llvm::createDefaultScheduler); 1059ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 1069ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Register allocation policy: 1079ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // createFastRegisterAllocator: fast but bad quality 1089ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // createLinearScanRegisterAllocator: not so fast but good quality 1099ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::RegisterRegAlloc::setDefault((mCodeGenOpts.OptimizationLevel == 0) ? 1109ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::createFastRegisterAllocator : 1119ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::createLinearScanRegisterAllocator); 1129ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 1139ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::CodeGenOpt::Level OptLevel = llvm::CodeGenOpt::Default; 1149ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (mCodeGenOpts.OptimizationLevel == 0) 1159ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao OptLevel = llvm::CodeGenOpt::None; 1169ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao else if (mCodeGenOpts.OptimizationLevel == 3) 1179ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao OptLevel = llvm::CodeGenOpt::Aggressive; 1189ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 1199ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::TargetMachine::CodeGenFileType CGFT = 1206315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr llvm::TargetMachine::CGFT_AssemblyFile; 1219ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (mOutputType == SlangCompilerOutput_Obj) 1229ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao CGFT = llvm::TargetMachine::CGFT_ObjectFile; 1239ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (TM->addPassesToEmitFile(*mCodeGenPasses, FormattedOutStream, 1249ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao CGFT, OptLevel)) { 1259ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mDiags.Report(clang::diag::err_fe_unable_to_interface_with_target); 1269ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return false; 1279ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 1289ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 1299ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return true; 130462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao} 131462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 1329ef2f785e0cc490af678dfd685995dec787321ffShih-wei LiaoBackend::Backend(clang::Diagnostic &Diags, 1339ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao const clang::CodeGenOptions &CodeGenOpts, 1349ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao const clang::TargetOptions &TargetOpts, 1359ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao const PragmaList &Pragmas, 1369ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::raw_ostream *OS, 1376b22674f4ef0a6c689c589830f1c44f443520785Kirk Stewart SlangCompilerOutputTy OutputType, 1389ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao clang::SourceManager &SourceMgr, 1396315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr bool AllowRSPrefix) 1406315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr : ASTConsumer(), 1416315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr mCodeGenOpts(CodeGenOpts), 1426315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr mTargetOpts(TargetOpts), 1436315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr mSourceMgr(SourceMgr), 1446315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr mpOS(OS), 1456315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr mOutputType(OutputType), 1466315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr mpTargetData(NULL), 1476315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr mGen(NULL), 1486315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr mPerFunctionPasses(NULL), 1496315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr mPerModulePasses(NULL), 1506315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr mCodeGenPasses(NULL), 1516315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr mAllowRSPrefix(AllowRSPrefix), 1526315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr mLLVMContext(llvm::getGlobalContext()), 1536315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr mDiags(Diags), 1546315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr mpModule(NULL), 1556315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr mPragmas(Pragmas) { 1566315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr FormattedOutStream.setStream(*mpOS, 1576315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr llvm::formatted_raw_ostream::PRESERVE_STREAM); 1589ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mGen = CreateLLVMCodeGen(mDiags, "", mCodeGenOpts, mLLVMContext); 1599ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 160462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao} 161462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 1629ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liaovoid Backend::Initialize(clang::ASTContext &Ctx) { 1639ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mGen->Initialize(Ctx); 164462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 1659ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mpModule = mGen->GetModule(); 1669ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mpTargetData = new llvm::TargetData(Slang::TargetDescription); 167462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 1689ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 169462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao} 170462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 1719ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liaovoid Backend::HandleTopLevelDecl(clang::DeclGroupRef D) { 1729ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Disallow user-defined functions with prefix "rs" 1739ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (!mAllowRSPrefix) { 1749ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao clang::DeclGroupRef::iterator I; 1759ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao for (I = D.begin(); I != D.end(); I++) { 1769ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao clang::FunctionDecl *FD = dyn_cast<clang::FunctionDecl>(*I); 1779ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (!FD || !FD->isThisDeclarationADefinition()) continue; 1789ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (FD->getName().startswith("rs")) { 1799ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mDiags.Report(clang::FullSourceLoc(FD->getLocStart(), mSourceMgr), 1809ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mDiags.getCustomDiagID(clang::Diagnostic::Error, 1819ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao "invalid function name prefix," 1829ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao " \"rs\" is reserved: '%0'") 1839ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao ) 1849ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao << FD->getNameAsString(); 1859ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 1866b22674f4ef0a6c689c589830f1c44f443520785Kirk Stewart } 1879ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 1886b22674f4ef0a6c689c589830f1c44f443520785Kirk Stewart 1899ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mGen->HandleTopLevelDecl(D); 1909ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 191462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao} 192462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 1939ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liaovoid Backend::HandleTranslationUnit(clang::ASTContext &Ctx) { 1949ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mGen->HandleTranslationUnit(Ctx); 195462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 1969ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Here, we complete a translation unit (whole translation unit is now in LLVM 1979ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // IR). Now, interact with LLVM backend to generate actual machine code (asm 1989ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // or machine code, whatever.) 199462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2009ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Silently ignore if we weren't initialized for some reason. 2019ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (!mpModule || !mpTargetData) 2029ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 203462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2049ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::Module *M = mGen->ReleaseModule(); 2059ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (!M) { 2069ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // The module has been released by IR gen on failures, do not double free. 2079ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mpModule = NULL; 2089ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 2099ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 2109ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 2119ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao assert(mpModule == M && "Unexpected module change during LLVM IR generation"); 2129ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 2139ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Insert #pragma information into metadata section of module 2149ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (!mPragmas.empty()) { 2159ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::NamedMDNode *PragmaMetadata = 2169ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mpModule->getOrInsertNamedMetadata(Slang::PragmaMetadataName); 2179ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao for (PragmaList::const_iterator I = mPragmas.begin(), E = mPragmas.end(); 2189ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I != E; 2199ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I++) { 2209ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::SmallVector<llvm::Value*, 2> Pragma; 2219ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Name goes first 2229ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao Pragma.push_back(llvm::MDString::get(mLLVMContext, I->first)); 2239ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // And then value 2249ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao Pragma.push_back(llvm::MDString::get(mLLVMContext, I->second)); 2259ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Create MDNode and insert into PragmaMetadata 2269ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao PragmaMetadata->addOperand( 2279ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::MDNode::get(mLLVMContext, Pragma.data(), Pragma.size())); 228462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao } 2299ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 230462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2319ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao HandleTranslationUnitEx(Ctx); 232462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2339ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Create passes for optimization and code emission 234462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2359ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Create and run per-function passes 2369ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao CreateFunctionPasses(); 2379ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (mPerFunctionPasses) { 2389ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mPerFunctionPasses->doInitialization(); 239462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2409ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao for (llvm::Module::iterator I = mpModule->begin(), E = mpModule->end(); 2419ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I != E; 2429ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I++) 2439ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (!I->isDeclaration()) 2449ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mPerFunctionPasses->run(*I); 245462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2469ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mPerFunctionPasses->doFinalization(); 2479ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 248462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2499ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Create and run module passes 2509ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao CreateModulePasses(); 2519ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (mPerModulePasses) 2529ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mPerModulePasses->run(*mpModule); 2539ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 2549ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao switch (mOutputType) { 2559ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao case SlangCompilerOutput_Assembly: 2569ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao case SlangCompilerOutput_Obj: { 2576315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr if (!CreateCodeGenPasses()) 2589ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 259462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2609ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mCodeGenPasses->doInitialization(); 261462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2629ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao for (llvm::Module::iterator I = mpModule->begin(), E = mpModule->end(); 2639ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I != E; 2649ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I++) 2656315f76e3cc6ff2d012d1183a0b030d4ff0dc808zonr if (!I->isDeclaration()) 2669ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mCodeGenPasses->run(*I); 2679ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 2689ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mCodeGenPasses->doFinalization(); 2699ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao break; 2709ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 2719ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao case SlangCompilerOutput_LL: { 2729ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::PassManager *LLEmitPM = new llvm::PassManager(); 2739ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao LLEmitPM->add(llvm::createPrintModulePass(&FormattedOutStream)); 2749ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao LLEmitPM->run(*mpModule); 2759ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao break; 276462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao } 277462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2789ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao case SlangCompilerOutput_Bitcode: { 2799ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::PassManager *BCEmitPM = new llvm::PassManager(); 2809ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao BCEmitPM->add(llvm::createBitcodeWriterPass(FormattedOutStream)); 2819ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao BCEmitPM->run(*mpModule); 2829ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao break; 2839ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 2849ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao case SlangCompilerOutput_Nothing: { 2859ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 2869ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao break; 2879ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 2889ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao default: { 2899ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao assert(false && "Unknown output type"); 2909ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao break; 2919ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 2929ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 293462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2949ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao FormattedOutStream.flush(); 2959ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 2969ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 297462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao} 298462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2999ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liaovoid Backend::HandleTagDeclDefinition(clang::TagDecl *D) { 3009ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mGen->HandleTagDeclDefinition(D); 3019ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 302462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao} 303462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 3049ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liaovoid Backend::CompleteTentativeDefinition(clang::VarDecl *D) { 3059ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mGen->CompleteTentativeDefinition(D); 3069ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 307462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao} 308462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 309462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei LiaoBackend::~Backend() { 3109ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao delete mpModule; 3119ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao delete mpTargetData; 3129ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao delete mGen; 3139ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao delete mPerFunctionPasses; 3149ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao delete mPerModulePasses; 3159ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao delete mCodeGenPasses; 3169ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 317462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao} 318