mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 03:02:36 +01:00
ae65e281f3
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
//===- llvm/CodeGen/GCMetadataPrinter.h - Prints asm GC tables --*- C++ -*-===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// The abstract base class GCMetadataPrinter supports writing GC metadata tables
|
|
// as assembly code. This is a separate class from GCStrategy in order to allow
|
|
// users of the LLVM JIT to avoid linking with the AsmWriter.
|
|
//
|
|
// Subclasses of GCMetadataPrinter must be registered using the
|
|
// GCMetadataPrinterRegistry. This is separate from the GCStrategy itself
|
|
// because these subclasses are logically plugins for the AsmWriter.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_CODEGEN_GCMETADATAPRINTER_H
|
|
#define LLVM_CODEGEN_GCMETADATAPRINTER_H
|
|
|
|
#include "llvm/Support/Registry.h"
|
|
|
|
namespace llvm {
|
|
|
|
class AsmPrinter;
|
|
class GCMetadataPrinter;
|
|
class GCModuleInfo;
|
|
class GCStrategy;
|
|
class Module;
|
|
class StackMaps;
|
|
|
|
/// GCMetadataPrinterRegistry - The GC assembly printer registry uses all the
|
|
/// defaults from Registry.
|
|
using GCMetadataPrinterRegistry = Registry<GCMetadataPrinter>;
|
|
|
|
/// GCMetadataPrinter - Emits GC metadata as assembly code. Instances are
|
|
/// created, managed, and owned by the AsmPrinter.
|
|
class GCMetadataPrinter {
|
|
private:
|
|
friend class AsmPrinter;
|
|
|
|
GCStrategy *S;
|
|
|
|
protected:
|
|
// May only be subclassed.
|
|
GCMetadataPrinter();
|
|
|
|
public:
|
|
GCMetadataPrinter(const GCMetadataPrinter &) = delete;
|
|
GCMetadataPrinter &operator=(const GCMetadataPrinter &) = delete;
|
|
virtual ~GCMetadataPrinter();
|
|
|
|
GCStrategy &getStrategy() { return *S; }
|
|
|
|
/// Called before the assembly for the module is generated by
|
|
/// the AsmPrinter (but after target specific hooks.)
|
|
virtual void beginAssembly(Module &M, GCModuleInfo &Info, AsmPrinter &AP) {}
|
|
|
|
/// Called after the assembly for the module is generated by
|
|
/// the AsmPrinter (but before target specific hooks)
|
|
virtual void finishAssembly(Module &M, GCModuleInfo &Info, AsmPrinter &AP) {}
|
|
|
|
/// Called when the stack maps are generated. Return true if
|
|
/// stack maps with a custom format are generated. Otherwise
|
|
/// returns false and the default format will be used.
|
|
virtual bool emitStackMaps(StackMaps &SM, AsmPrinter &AP) { return false; }
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif // LLVM_CODEGEN_GCMETADATAPRINTER_H
|