| //===- Parser.cpp - Main dispatch module for the Parser library -----------===// |
| // |
| // 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 library implements the functionality defined in llvm/AsmParser/Parser.h |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/AsmParser/Parser.h" |
| #include "LLParser.h" |
| #include "llvm/ADT/STLExtras.h" |
| #include "llvm/IR/Module.h" |
| #include "llvm/IR/ModuleSummaryIndex.h" |
| #include "llvm/Support/MemoryBuffer.h" |
| #include "llvm/Support/SourceMgr.h" |
| #include "llvm/Support/raw_ostream.h" |
| #include <cstring> |
| #include <system_error> |
| using namespace llvm; |
| |
| bool llvm::parseAssemblyInto(MemoryBufferRef F, Module *M, |
| ModuleSummaryIndex *Index, SMDiagnostic &Err, |
| SlotMapping *Slots, bool UpgradeDebugInfo, |
| StringRef DataLayoutString) { |
| SourceMgr SM; |
| std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(F); |
| SM.AddNewSourceBuffer(std::move(Buf), SMLoc()); |
| |
| LLVMContext Context; |
| return LLParser(F.getBuffer(), SM, Err, M, Index, |
| M ? M->getContext() : Context, Slots, UpgradeDebugInfo, |
| DataLayoutString) |
| .Run(); |
| } |
| |
| std::unique_ptr<Module> |
| llvm::parseAssembly(MemoryBufferRef F, SMDiagnostic &Err, LLVMContext &Context, |
| SlotMapping *Slots, bool UpgradeDebugInfo, |
| StringRef DataLayoutString) { |
| std::unique_ptr<Module> M = |
| make_unique<Module>(F.getBufferIdentifier(), Context); |
| |
| if (parseAssemblyInto(F, M.get(), nullptr, Err, Slots, UpgradeDebugInfo, |
| DataLayoutString)) |
| return nullptr; |
| |
| return M; |
| } |
| |
| std::unique_ptr<Module> |
| llvm::parseAssemblyFile(StringRef Filename, SMDiagnostic &Err, |
| LLVMContext &Context, SlotMapping *Slots, |
| bool UpgradeDebugInfo, StringRef DataLayoutString) { |
| ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr = |
| MemoryBuffer::getFileOrSTDIN(Filename); |
| if (std::error_code EC = FileOrErr.getError()) { |
| Err = SMDiagnostic(Filename, SourceMgr::DK_Error, |
| "Could not open input file: " + EC.message()); |
| return nullptr; |
| } |
| |
| return parseAssembly(FileOrErr.get()->getMemBufferRef(), Err, Context, Slots, |
| UpgradeDebugInfo, DataLayoutString); |
| } |
| |
| ParsedModuleAndIndex llvm::parseAssemblyWithIndex( |
| MemoryBufferRef F, SMDiagnostic &Err, LLVMContext &Context, |
| SlotMapping *Slots, bool UpgradeDebugInfo, StringRef DataLayoutString) { |
| std::unique_ptr<Module> M = |
| make_unique<Module>(F.getBufferIdentifier(), Context); |
| std::unique_ptr<ModuleSummaryIndex> Index = |
| make_unique<ModuleSummaryIndex>(/*HaveGVs=*/true); |
| |
| if (parseAssemblyInto(F, M.get(), Index.get(), Err, Slots, UpgradeDebugInfo, |
| DataLayoutString)) |
| return {nullptr, nullptr}; |
| |
| return {std::move(M), std::move(Index)}; |
| } |
| |
| ParsedModuleAndIndex llvm::parseAssemblyFileWithIndex( |
| StringRef Filename, SMDiagnostic &Err, LLVMContext &Context, |
| SlotMapping *Slots, bool UpgradeDebugInfo, StringRef DataLayoutString) { |
| ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr = |
| MemoryBuffer::getFileOrSTDIN(Filename); |
| if (std::error_code EC = FileOrErr.getError()) { |
| Err = SMDiagnostic(Filename, SourceMgr::DK_Error, |
| "Could not open input file: " + EC.message()); |
| return {nullptr, nullptr}; |
| } |
| |
| return parseAssemblyWithIndex(FileOrErr.get()->getMemBufferRef(), Err, |
| Context, Slots, UpgradeDebugInfo, |
| DataLayoutString); |
| } |
| |
| std::unique_ptr<Module> |
| llvm::parseAssemblyString(StringRef AsmString, SMDiagnostic &Err, |
| LLVMContext &Context, SlotMapping *Slots, |
| bool UpgradeDebugInfo, StringRef DataLayoutString) { |
| MemoryBufferRef F(AsmString, "<string>"); |
| return parseAssembly(F, Err, Context, Slots, UpgradeDebugInfo, |
| DataLayoutString); |
| } |
| |
| static bool parseSummaryIndexAssemblyInto(MemoryBufferRef F, |
| ModuleSummaryIndex &Index, |
| SMDiagnostic &Err) { |
| SourceMgr SM; |
| std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(F); |
| SM.AddNewSourceBuffer(std::move(Buf), SMLoc()); |
| |
| // The parser holds a reference to a context that is unused when parsing the |
| // index, but we need to initialize it. |
| LLVMContext unusedContext; |
| return LLParser(F.getBuffer(), SM, Err, nullptr, &Index, unusedContext).Run(); |
| } |
| |
| std::unique_ptr<ModuleSummaryIndex> |
| llvm::parseSummaryIndexAssembly(MemoryBufferRef F, SMDiagnostic &Err) { |
| std::unique_ptr<ModuleSummaryIndex> Index = |
| make_unique<ModuleSummaryIndex>(/*HaveGVs=*/false); |
| |
| if (parseSummaryIndexAssemblyInto(F, *Index, Err)) |
| return nullptr; |
| |
| return Index; |
| } |
| |
| std::unique_ptr<ModuleSummaryIndex> |
| llvm::parseSummaryIndexAssemblyFile(StringRef Filename, SMDiagnostic &Err) { |
| ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr = |
| MemoryBuffer::getFileOrSTDIN(Filename); |
| if (std::error_code EC = FileOrErr.getError()) { |
| Err = SMDiagnostic(Filename, SourceMgr::DK_Error, |
| "Could not open input file: " + EC.message()); |
| return nullptr; |
| } |
| |
| return parseSummaryIndexAssembly(FileOrErr.get()->getMemBufferRef(), Err); |
| } |
| |
| Constant *llvm::parseConstantValue(StringRef Asm, SMDiagnostic &Err, |
| const Module &M, const SlotMapping *Slots) { |
| SourceMgr SM; |
| std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(Asm); |
| SM.AddNewSourceBuffer(std::move(Buf), SMLoc()); |
| Constant *C; |
| if (LLParser(Asm, SM, Err, const_cast<Module *>(&M), nullptr, M.getContext()) |
| .parseStandaloneConstantValue(C, Slots)) |
| return nullptr; |
| return C; |
| } |
| |
| Type *llvm::parseType(StringRef Asm, SMDiagnostic &Err, const Module &M, |
| const SlotMapping *Slots) { |
| unsigned Read; |
| Type *Ty = parseTypeAtBeginning(Asm, Read, Err, M, Slots); |
| if (!Ty) |
| return nullptr; |
| if (Read != Asm.size()) { |
| SourceMgr SM; |
| std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(Asm); |
| SM.AddNewSourceBuffer(std::move(Buf), SMLoc()); |
| Err = SM.GetMessage(SMLoc::getFromPointer(Asm.begin() + Read), |
| SourceMgr::DK_Error, "expected end of string"); |
| return nullptr; |
| } |
| return Ty; |
| } |
| Type *llvm::parseTypeAtBeginning(StringRef Asm, unsigned &Read, |
| SMDiagnostic &Err, const Module &M, |
| const SlotMapping *Slots) { |
| SourceMgr SM; |
| std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(Asm); |
| SM.AddNewSourceBuffer(std::move(Buf), SMLoc()); |
| Type *Ty; |
| if (LLParser(Asm, SM, Err, const_cast<Module *>(&M), nullptr, M.getContext()) |
| .parseTypeAtBeginning(Ty, Read, Slots)) |
| return nullptr; |
| return Ty; |
| } |