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5e62b8471d
This change moves the ownership and access of GCFunctionInfo (the object which describes the safepoints associated with a safepoint under GCRoot) to GCModuleInfo. Previously, this was owned by GCStrategy which was in turned owned by GCModuleInfo. This made GCStrategy module specific which is 'surprising' given it's name and other purposes. There's a few more changes needed, but we're getting towards the point we can reuse GCStrategy for gc.statepoint as well. p.s. The style of this code ends up being a mess. I was trying to move code around without otherwise changing much. Once I get the ownership structure rearranged, I will go through and fixup spacing, naming, comments etc. Differential Revision: http://reviews.llvm.org/D6587 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223994 91177308-0d34-0410-b5e6-96231b3b80d8
69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
//===-- llvm/CodeGen/GCMetadataPrinter.h - Prints asm GC tables -*- C++ -*-===//
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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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// The abstract base class GCMetadataPrinter supports writing GC metadata tables
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// as assembly code. This is a separate class from GCStrategy in order to allow
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// users of the LLVM JIT to avoid linking with the AsmWriter.
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//
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// Subclasses of GCMetadataPrinter must be registered using the
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// GCMetadataPrinterRegistry. This is separate from the GCStrategy itself
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// because these subclasses are logically plugins for the AsmWriter.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_GCMETADATAPRINTER_H
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#define LLVM_CODEGEN_GCMETADATAPRINTER_H
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#include "llvm/CodeGen/GCMetadata.h"
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#include "llvm/CodeGen/GCStrategy.h"
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#include "llvm/Support/Registry.h"
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namespace llvm {
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class GCMetadataPrinter;
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/// GCMetadataPrinterRegistry - The GC assembly printer registry uses all the
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/// defaults from Registry.
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typedef Registry<GCMetadataPrinter> GCMetadataPrinterRegistry;
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/// GCMetadataPrinter - Emits GC metadata as assembly code. Instances are
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/// created, managed, and owned by the AsmPrinter.
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class GCMetadataPrinter {
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private:
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GCStrategy *S;
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friend class AsmPrinter;
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protected:
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// May only be subclassed.
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GCMetadataPrinter();
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private:
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GCMetadataPrinter(const GCMetadataPrinter &) LLVM_DELETED_FUNCTION;
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GCMetadataPrinter &
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operator=(const GCMetadataPrinter &) LLVM_DELETED_FUNCTION;
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public:
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GCStrategy &getStrategy() { return *S; }
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/// Called before the assembly for the module is generated by
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/// the AsmPrinter (but after target specific hooks.)
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virtual void beginAssembly(Module &M, GCModuleInfo &Info,
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AsmPrinter &AP) {}
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/// Called after the assembly for the module is generated by
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/// the AsmPrinter (but before target specific hooks)
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virtual void finishAssembly(Module &M, GCModuleInfo &Info,
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AsmPrinter &AP) {}
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virtual ~GCMetadataPrinter();
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};
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}
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#endif
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