Factor GC metadata table assembly generation out of Collector in preparation for splitting AsmPrinter into its own library.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54881 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 47 insertions, 0 deletions

diff --git a/include/llvm/CodeGen/GCs.h b/include/llvm/CodeGen/GCs.h
new file mode 100644
index 0000000000..7850ddcd82
--- /dev/null
+++ b/include/llvm/CodeGen/GCs.h
@@ -0,0 +1,47 @@
+//===-- Collectors.h - Garbage collector registry -------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the CollectorRegistry class, which is used to discover
+// pluggable garbage collectors.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CODEGEN_GCS_H
+#define LLVM_CODEGEN_GCS_H
+
+#include "llvm/Support/Registry.h"
+
+namespace llvm {
+
+  class Collector;
+  class GCMetadataPrinter;
+  
+  /// The collector registry uses all the defaults from Registry.
+  /// 
+  typedef Registry<Collector> CollectorRegistry;
+  
+  /// The GC assembly printer registry uses all the defaults from Registry.
+  /// 
+  typedef Registry<GCMetadataPrinter> GCMetadataPrinterRegistry;
+  
+  /// FIXME: Collector instances are not useful on their own. These no longer
+  ///        serve any purpose except to link in the plugins.
+  
+  /// Creates an ocaml-compatible garbage collector.
+  Collector *createOcamlCollector();
+  
+  /// Creates an ocaml-compatible metadata printer.
+  GCMetadataPrinter *createOcamlMetadataPrinter();
+  
+  /// Creates a shadow stack garbage collector. This collector requires no code
+  /// generator support.
+  Collector *createShadowStackCollector();
+}
+
+#endif