1//===-- llvm/CodeGen/GCMetadataPrinter.h - Prints asm GC tables -*- C++ -*-===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// The abstract base class GCMetadataPrinter supports writing GC metadata tables
11// as assembly code. This is a separate class from GCStrategy in order to allow
12// users of the LLVM JIT to avoid linking with the AsmWriter.
13//
14// Subclasses of GCMetadataPrinter must be registered using the
15// GCMetadataPrinterRegistry. This is separate from the GCStrategy itself
16// because these subclasses are logically plugins for the AsmWriter.
17//
18//===----------------------------------------------------------------------===//
19
20#ifndef LLVM_CODEGEN_GCMETADATAPRINTER_H
21#define LLVM_CODEGEN_GCMETADATAPRINTER_H
22
23#include "llvm/CodeGen/GCMetadata.h"
24#include "llvm/CodeGen/GCStrategy.h"
25#include "llvm/Support/Registry.h"
26
27namespace llvm {
|
28
|
| 28 |
29 class GCMetadataPrinter;
|
30
|
| 30 |
31 /// GCMetadataPrinterRegistry - The GC assembly printer registry uses all the
32 /// defaults from Registry.
33 typedef Registry<GCMetadataPrinter> GCMetadataPrinterRegistry;
|
34
|
| 34 |
35 /// GCMetadataPrinter - Emits GC metadata as assembly code.
|
36 ///
|
| 36 /// |
37 class GCMetadataPrinter {
38 public:
39 typedef GCStrategy::list_type list_type;
40 typedef GCStrategy::iterator iterator;
|
41
|
| 41 |
42 private:
43 GCStrategy *S;
|
44
|
| 44 |
45 friend class AsmPrinter;
|
46
|
| 46 |
47 protected:
48 // May only be subclassed.
49 GCMetadataPrinter();
|
50
|
| 50 |
51 // Do not implement.
52 GCMetadataPrinter(const GCMetadataPrinter &);
53 GCMetadataPrinter &operator=(const GCMetadataPrinter &);
|
54
|
| 54 |
55 public:
56 GCStrategy &getStrategy() { return *S; }
57 const Module &getModule() const { return S->getModule(); }
|
58
|
| 58 |
59 /// begin/end - Iterate over the collected function metadata.
60 iterator begin() { return S->begin(); }
61 iterator end() { return S->end(); }
|
62
|
| 62 |
63 /// beginAssembly/finishAssembly - Emit module metadata as assembly code.
64 virtual void beginAssembly(AsmPrinter &AP);
|
65
|
| 65 |
66 virtual void finishAssembly(AsmPrinter &AP);
|
67
|
| 67 |
68 virtual ~GCMetadataPrinter();
69 };
|
70
|
| 70 |
71}
72
73#endif
|