mirror of
https://github.com/c64scene-ar/llvm-6502.git
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3f1b2bdf5d
This commit modifies the memory buffer creation in the AsmParser library so that it requires a terminating null character. The LLLexer in the AsmParser library checks for EOF only when it sees a null character, thus it would be best to require it when creating a memory buffer so that the memory buffer constructor can verify that a terminating null character is indeed present. Reviewers: Duncan P. N. Exon Smith, Matthias Braun Differential Revision: http://reviews.llvm.org/D9883 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237833 91177308-0d34-0410-b5e6-96231b3b80d8
65 lines
2.3 KiB
C++
65 lines
2.3 KiB
C++
//===- Parser.cpp - Main dispatch module for the Parser library -----------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This library implements the functionality defined in llvm/AsmParser/Parser.h
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/AsmParser/Parser.h"
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#include "LLParser.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/IR/Module.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/SourceMgr.h"
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#include "llvm/Support/raw_ostream.h"
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#include <cstring>
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#include <system_error>
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using namespace llvm;
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bool llvm::parseAssemblyInto(MemoryBufferRef F, Module &M, SMDiagnostic &Err) {
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SourceMgr SM;
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std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(F);
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SM.AddNewSourceBuffer(std::move(Buf), SMLoc());
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return LLParser(F.getBuffer(), SM, Err, &M).Run();
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}
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std::unique_ptr<Module> llvm::parseAssembly(MemoryBufferRef F,
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SMDiagnostic &Err,
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LLVMContext &Context) {
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std::unique_ptr<Module> M =
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make_unique<Module>(F.getBufferIdentifier(), Context);
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if (parseAssemblyInto(F, *M, Err))
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return nullptr;
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return M;
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}
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std::unique_ptr<Module> llvm::parseAssemblyFile(StringRef Filename,
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SMDiagnostic &Err,
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LLVMContext &Context) {
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ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
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MemoryBuffer::getFileOrSTDIN(Filename);
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if (std::error_code EC = FileOrErr.getError()) {
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Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
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"Could not open input file: " + EC.message());
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return nullptr;
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}
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return parseAssembly(FileOrErr.get()->getMemBufferRef(), Err, Context);
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}
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std::unique_ptr<Module> llvm::parseAssemblyString(StringRef AsmString,
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SMDiagnostic &Err,
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LLVMContext &Context) {
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MemoryBufferRef F(AsmString, "<string>");
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return parseAssembly(F, Err, Context);
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}
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