LLVM API Documentation

OcamlGC.cpp

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00001 //===-- OcamlGC.cpp - Ocaml frametable GC strategy ------------------------===//
00002 //
00003 //                     The LLVM Compiler Infrastructure
00004 //
00005 // This file is distributed under the University of Illinois Open Source
00006 // License. See LICENSE.TXT for details.
00007 //
00008 //===----------------------------------------------------------------------===//
00009 //
00010 // This file implements lowering for the llvm.gc* intrinsics compatible with
00011 // Objective Caml 3.10.0, which uses a liveness-accurate static stack map.
00012 //
00013 // The frametable emitter is in OcamlGCPrinter.cpp.
00014 //
00015 //===----------------------------------------------------------------------===//
00016 
00017 #include "llvm/CodeGen/GCs.h"
00018 #include "llvm/CodeGen/GCStrategy.h"
00019 #include "llvm/Support/Compiler.h"
00020 
00021 using namespace llvm;
00022 
00023 namespace {
00024   class VISIBILITY_HIDDEN OcamlGC : public GCStrategy {
00025   public:
00026     OcamlGC();
00027   };
00028 }
00029 
00030 static GCRegistry::Add<OcamlGC>
00031 X("ocaml", "ocaml 3.10-compatible GC");
00032 
00033 void llvm::linkOcamlGC() { }
00034 
00035 OcamlGC::OcamlGC() {
00036   NeededSafePoints = 1 << GC::PostCall;
00037   UsesMetadata = true;
00038 }