6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
//===- llvm/TableGen/TableGenBackend.h - Backend utilities ------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Useful utilities for TableGen backends.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TABLEGEN_TABLEGENBACKEND_H
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#define LLVM_TABLEGEN_TABLEGENBACKEND_H
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/TableGen/Record.h"
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namespace llvm {
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class RecordKeeper;
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class raw_ostream;
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namespace TableGen::Emitter {
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using FnT = void (*)(RecordKeeper &Records, raw_ostream &OS);
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struct OptCreatorT {
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static void *call();
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};
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extern ManagedStatic<cl::opt<FnT>, OptCreatorT> Action;
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struct Opt {
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Opt(StringRef Name, FnT CB, StringRef Desc, bool ByDefault = false) {
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if (ByDefault)
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Action->setInitialValue(CB);
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Action->getParser().addLiteralOption(Name, CB, Desc);
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}
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};
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template <class EmitterC> class OptClass : Opt {
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static void run(RecordKeeper &RK, raw_ostream &OS) { EmitterC(RK).run(OS); }
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public:
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OptClass(StringRef Name, StringRef Desc) : Opt(Name, run, Desc) {}
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};
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} // namespace TableGen::Emitter
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/// emitSourceFileHeader - Output an LLVM style file header to the specified
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/// raw_ostream.
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void emitSourceFileHeader(StringRef Desc, raw_ostream &OS,
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const RecordKeeper &Record = RecordKeeper());
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} // End llvm namespace
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#endif
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