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Diffstat (limited to 'contrib/llvm/lib/AsmParser/Parser.cpp')
-rw-r--r-- | contrib/llvm/lib/AsmParser/Parser.cpp | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/contrib/llvm/lib/AsmParser/Parser.cpp b/contrib/llvm/lib/AsmParser/Parser.cpp new file mode 100644 index 0000000..4e55e62 --- /dev/null +++ b/contrib/llvm/lib/AsmParser/Parser.cpp @@ -0,0 +1,80 @@ +//===- Parser.cpp - Main dispatch module for the Parser library -----------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// 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/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, SMDiagnostic &Err, + SlotMapping *Slots) { + SourceMgr SM; + std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(F); + SM.AddNewSourceBuffer(std::move(Buf), SMLoc()); + + return LLParser(F.getBuffer(), SM, Err, &M, Slots).Run(); +} + +std::unique_ptr<Module> llvm::parseAssembly(MemoryBufferRef F, + SMDiagnostic &Err, + LLVMContext &Context, + SlotMapping *Slots) { + std::unique_ptr<Module> M = + make_unique<Module>(F.getBufferIdentifier(), Context); + + if (parseAssemblyInto(F, *M, Err, Slots)) + return nullptr; + + return M; +} + +std::unique_ptr<Module> llvm::parseAssemblyFile(StringRef Filename, + SMDiagnostic &Err, + LLVMContext &Context, + SlotMapping *Slots) { + 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); +} + +std::unique_ptr<Module> llvm::parseAssemblyString(StringRef AsmString, + SMDiagnostic &Err, + LLVMContext &Context, + SlotMapping *Slots) { + MemoryBufferRef F(AsmString, "<string>"); + return parseAssembly(F, Err, Context, Slots); +} + +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)) + .parseStandaloneConstantValue(C, Slots)) + return nullptr; + return C; +} |