slang_backend.cpp revision 9ef2f785e0cc490af678dfd685995dec787321ff
1462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao#include "slang.hpp" 2462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao#include "slang_backend.hpp" 3462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 49ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/Module.h" 59ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/Metadata.h" 69ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/LLVMContext.h" 7462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 89ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/Target/TargetMachine.h" 99ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/Target/TargetOptions.h" 109ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/Target/TargetRegistry.h" 119ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/Target/SubtargetFeature.h" 12462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 139ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/CodeGen/RegAllocRegistry.h" 149ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/CodeGen/SchedulerRegistry.h" 15462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 169ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/Assembly/PrintModulePass.h" 179ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "llvm/Bitcode/ReaderWriter.h" 18462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 199ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "clang/AST/Decl.h" 209ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "clang/AST/DeclGroup.h" 219ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "clang/AST/ASTContext.h" 22462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 239ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "clang/Basic/TargetInfo.h" 249ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "clang/Basic/Diagnostic.h" 259ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "clang/Basic/TargetOptions.h" 26462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 279ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "clang/Frontend/FrontendDiagnostic.h" 28462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 299ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao#include "clang/CodeGen/ModuleBuilder.h" 30462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 319ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liaousing namespace slang; 32462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 33462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liaobool Backend::CreateCodeGenPasses() { 349ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (mOutputType != SlangCompilerOutput_Assembly && 359ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mOutputType != SlangCompilerOutput_Obj) 369ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return true; 37462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 389ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Now we add passes for code emitting 399ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (mCodeGenPasses) { 40462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao return true; 419ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } else { 429ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mCodeGenPasses = new llvm::FunctionPassManager(mpModule); 439ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mCodeGenPasses->add(new llvm::TargetData(*mpTargetData)); 449ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 459ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 469ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Create the TargetMachine for generating code. 479ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao std::string Triple = mpModule->getTargetTriple(); 489ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 499ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao std::string Error; 509ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao const llvm::Target* TargetInfo = 519ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::TargetRegistry::lookupTarget(Triple, Error); 529ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if(TargetInfo == NULL) { 539ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mDiags.Report(clang::diag::err_fe_unable_to_create_target) << Error; 549ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return false; 559ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 569ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 579ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::NoFramePointerElim = mCodeGenOpts.DisableFPElim; 589ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 599ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Use hardware FPU. 609ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // 619ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // FIXME: Need to detect the CPU capability and decide whether to use softfp. 629ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // To use softfp, change following 2 lines to 639ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // 649ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // llvm::FloatABIType = llvm::FloatABI::Soft; 659ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // llvm::UseSoftFloat = true; 669ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::FloatABIType = llvm::FloatABI::Hard; 679ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::UseSoftFloat = false; 689ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 699ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // BCC needs all unknown symbols resolved at compilation time. So we don't 709ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // need any relocation model. 719ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::TargetMachine::setRelocationModel(llvm::Reloc::Static); 729ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 739ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 749ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // The target with pointer size greater than 32 (e.g. x86_64 architecture) may 759ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // need large data address model 769ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (mpTargetData->getPointerSizeInBits() > 32) 779ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::TargetMachine::setCodeModel(llvm::CodeModel::Medium); 789ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao else 799ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // This is set for the linker (specify how large of the virtual addresses we 809ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // can access for all unknown symbols.) 819ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 829ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::TargetMachine::setCodeModel(llvm::CodeModel::Small); 839ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 849ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Setup feature string 859ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao std::string FeaturesStr; 869ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (mTargetOpts.CPU.size() || mTargetOpts.Features.size()) { 879ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::SubtargetFeatures Features; 889ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 899ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao Features.setCPU(mTargetOpts.CPU); 909ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 919ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao for (std::vector<std::string>::const_iterator 929ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I = mTargetOpts.Features.begin(), E = mTargetOpts.Features.end(); 939ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I != E; 949ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I++) 959ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao Features.AddFeature(*I); 969ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 979ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao FeaturesStr = Features.getString(); 989ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 999ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::TargetMachine *TM = 1009ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao TargetInfo->createTargetMachine(Triple, FeaturesStr); 1019ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 1029ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Register scheduler 1039ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::RegisterScheduler::setDefault(llvm::createDefaultScheduler); 1049ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 1059ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Register allocation policy: 1069ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // createFastRegisterAllocator: fast but bad quality 1079ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // createLinearScanRegisterAllocator: not so fast but good quality 1089ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::RegisterRegAlloc::setDefault((mCodeGenOpts.OptimizationLevel == 0) ? 1099ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::createFastRegisterAllocator : 1109ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::createLinearScanRegisterAllocator); 1119ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 1129ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::CodeGenOpt::Level OptLevel = llvm::CodeGenOpt::Default; 1139ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (mCodeGenOpts.OptimizationLevel == 0) 1149ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao OptLevel = llvm::CodeGenOpt::None; 1159ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao else if (mCodeGenOpts.OptimizationLevel == 3) 1169ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao OptLevel = llvm::CodeGenOpt::Aggressive; 1179ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 1189ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::TargetMachine::CodeGenFileType CGFT = 1199ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::TargetMachine::CGFT_AssemblyFile;; 1209ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (mOutputType == SlangCompilerOutput_Obj) 1219ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao CGFT = llvm::TargetMachine::CGFT_ObjectFile; 1229ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (TM->addPassesToEmitFile(*mCodeGenPasses, FormattedOutStream, 1239ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao CGFT, OptLevel)) { 1249ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mDiags.Report(clang::diag::err_fe_unable_to_interface_with_target); 1259ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return false; 1269ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 1279ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 1289ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return true; 129462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao} 130462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 1319ef2f785e0cc490af678dfd685995dec787321ffShih-wei LiaoBackend::Backend(clang::Diagnostic &Diags, 1329ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao const clang::CodeGenOptions &CodeGenOpts, 1339ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao const clang::TargetOptions &TargetOpts, 1349ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao const PragmaList &Pragmas, 1359ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::raw_ostream *OS, 1366b22674f4ef0a6c689c589830f1c44f443520785Kirk Stewart SlangCompilerOutputTy OutputType, 1379ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao clang::SourceManager &SourceMgr, 1381fd8579fe65b13a26cfaad12d056d2fc9b46475aKirk Stewart bool AllowRSPrefix) : 139462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao ASTConsumer(), 140462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao mCodeGenOpts(CodeGenOpts), 141462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao mTargetOpts(TargetOpts), 142cecd11d2af5d45d8ba322bed61fb48a99c305528Shih-wei Liao mSourceMgr(SourceMgr), 143462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao mpOS(OS), 144462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao mOutputType(OutputType), 145462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao mpTargetData(NULL), 146462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao mGen(NULL), 147462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao mPerFunctionPasses(NULL), 148462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao mPerModulePasses(NULL), 1496b22674f4ef0a6c689c589830f1c44f443520785Kirk Stewart mCodeGenPasses(NULL), 150cecd11d2af5d45d8ba322bed61fb48a99c305528Shih-wei Liao mAllowRSPrefix(AllowRSPrefix), 151cecd11d2af5d45d8ba322bed61fb48a99c305528Shih-wei Liao mLLVMContext(llvm::getGlobalContext()), 152cecd11d2af5d45d8ba322bed61fb48a99c305528Shih-wei Liao mDiags(Diags), 153cecd11d2af5d45d8ba322bed61fb48a99c305528Shih-wei Liao mpModule(NULL), 154cecd11d2af5d45d8ba322bed61fb48a99c305528Shih-wei Liao mPragmas(Pragmas) 155462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao{ 1569ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao FormattedOutStream.setStream(*mpOS, llvm::formatted_raw_ostream::PRESERVE_STREAM); 1579ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mGen = CreateLLVMCodeGen(mDiags, "", mCodeGenOpts, mLLVMContext); 1589ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 159462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao} 160462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 1619ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liaovoid Backend::Initialize(clang::ASTContext &Ctx) { 1629ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mGen->Initialize(Ctx); 163462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 1649ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mpModule = mGen->GetModule(); 1659ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mpTargetData = new llvm::TargetData(Slang::TargetDescription); 166462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 1679ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 168462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao} 169462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 1709ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liaovoid Backend::HandleTopLevelDecl(clang::DeclGroupRef D) { 1719ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Disallow user-defined functions with prefix "rs" 1729ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (!mAllowRSPrefix) { 1739ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao clang::DeclGroupRef::iterator I; 1749ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao for (I = D.begin(); I != D.end(); I++) { 1759ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao clang::FunctionDecl *FD = dyn_cast<clang::FunctionDecl>(*I); 1769ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (!FD || !FD->isThisDeclarationADefinition()) continue; 1779ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (FD->getName().startswith("rs")) { 1789ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mDiags.Report(clang::FullSourceLoc(FD->getLocStart(), mSourceMgr), 1799ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mDiags.getCustomDiagID(clang::Diagnostic::Error, 1809ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao "invalid function name prefix," 1819ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao " \"rs\" is reserved: '%0'") 1829ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao ) 1839ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao << FD->getNameAsString(); 1849ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 1856b22674f4ef0a6c689c589830f1c44f443520785Kirk Stewart } 1869ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 1876b22674f4ef0a6c689c589830f1c44f443520785Kirk Stewart 1889ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mGen->HandleTopLevelDecl(D); 1899ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 190462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao} 191462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 1929ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liaovoid Backend::HandleTranslationUnit(clang::ASTContext &Ctx) { 1939ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mGen->HandleTranslationUnit(Ctx); 194462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 1959ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Here, we complete a translation unit (whole translation unit is now in LLVM 1969ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // IR). Now, interact with LLVM backend to generate actual machine code (asm 1979ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // or machine code, whatever.) 198462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 1999ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Silently ignore if we weren't initialized for some reason. 2009ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (!mpModule || !mpTargetData) 2019ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 202462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2039ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::Module *M = mGen->ReleaseModule(); 2049ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (!M) { 2059ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // The module has been released by IR gen on failures, do not double free. 2069ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mpModule = NULL; 2079ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 2089ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 2099ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 2109ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao assert(mpModule == M && "Unexpected module change during LLVM IR generation"); 2119ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 2129ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Insert #pragma information into metadata section of module 2139ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (!mPragmas.empty()) { 2149ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::NamedMDNode *PragmaMetadata = 2159ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mpModule->getOrInsertNamedMetadata(Slang::PragmaMetadataName); 2169ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao for (PragmaList::const_iterator I = mPragmas.begin(), E = mPragmas.end(); 2179ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I != E; 2189ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I++) { 2199ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::SmallVector<llvm::Value*, 2> Pragma; 2209ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Name goes first 2219ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao Pragma.push_back(llvm::MDString::get(mLLVMContext, I->first)); 2229ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // And then value 2239ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao Pragma.push_back(llvm::MDString::get(mLLVMContext, I->second)); 2249ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Create MDNode and insert into PragmaMetadata 2259ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao PragmaMetadata->addOperand( 2269ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::MDNode::get(mLLVMContext, Pragma.data(), Pragma.size())); 227462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao } 2289ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 229462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2309ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao HandleTranslationUnitEx(Ctx); 231462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2329ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Create passes for optimization and code emission 233462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2349ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Create and run per-function passes 2359ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao CreateFunctionPasses(); 2369ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (mPerFunctionPasses) { 2379ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mPerFunctionPasses->doInitialization(); 238462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2399ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao for (llvm::Module::iterator I = mpModule->begin(), E = mpModule->end(); 2409ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I != E; 2419ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I++) 2429ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (!I->isDeclaration()) 2439ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mPerFunctionPasses->run(*I); 244462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2459ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mPerFunctionPasses->doFinalization(); 2469ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 247462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2489ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao // Create and run module passes 2499ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao CreateModulePasses(); 2509ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if (mPerModulePasses) 2519ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mPerModulePasses->run(*mpModule); 2529ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 2539ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao switch (mOutputType) { 2549ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao case SlangCompilerOutput_Assembly: 2559ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao case SlangCompilerOutput_Obj: { 2569ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if(!CreateCodeGenPasses()) 2579ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 258462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2599ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mCodeGenPasses->doInitialization(); 260462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2619ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao for (llvm::Module::iterator I = mpModule->begin(), E = mpModule->end(); 2629ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I != E; 2639ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao I++) 2649ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao if(!I->isDeclaration()) 2659ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mCodeGenPasses->run(*I); 2669ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 2679ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mCodeGenPasses->doFinalization(); 2689ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao break; 2699ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 2709ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao case SlangCompilerOutput_LL: { 2719ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::PassManager *LLEmitPM = new llvm::PassManager(); 2729ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao LLEmitPM->add(llvm::createPrintModulePass(&FormattedOutStream)); 2739ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao LLEmitPM->run(*mpModule); 2749ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao break; 275462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao } 276462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2779ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao case SlangCompilerOutput_Bitcode: { 2789ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao llvm::PassManager *BCEmitPM = new llvm::PassManager(); 2799ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao BCEmitPM->add(llvm::createBitcodeWriterPass(FormattedOutStream)); 2809ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao BCEmitPM->run(*mpModule); 2819ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao break; 2829ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 2839ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao case SlangCompilerOutput_Nothing: { 2849ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 2859ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao break; 2869ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 2879ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao default: { 2889ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao assert(false && "Unknown output type"); 2899ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao break; 2909ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 2919ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao } 292462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2939ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao FormattedOutStream.flush(); 2949ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao 2959ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 296462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao} 297462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 2989ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liaovoid Backend::HandleTagDeclDefinition(clang::TagDecl *D) { 2999ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mGen->HandleTagDeclDefinition(D); 3009ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 301462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao} 302462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 3039ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liaovoid Backend::CompleteTentativeDefinition(clang::VarDecl *D) { 3049ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao mGen->CompleteTentativeDefinition(D); 3059ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 306462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao} 307462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao 308462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei LiaoBackend::~Backend() { 3099ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao delete mpModule; 3109ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao delete mpTargetData; 3119ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao delete mGen; 3129ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao delete mPerFunctionPasses; 3139ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao delete mPerModulePasses; 3149ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao delete mCodeGenPasses; 3159ef2f785e0cc490af678dfd685995dec787321ffShih-wei Liao return; 316462aefd62cc646d2ff753c1d003ef3cd7bbea26Shih-wei Liao} 317