lib/CodeGen/OcamlGC.cpp

   1 //===-- OcamlGC.cpp - Ocaml frametable GC strategy ------------------------===//
   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 // This file implements lowering for the llvm.gc* intrinsics compatible with
  11 // Objective Caml 3.10.0, which uses a liveness-accurate static stack map.
  12 //
  13 // The frametable emitter is in OcamlGCPrinter.cpp.
  14 //
  15 //===----------------------------------------------------------------------===//
  16
  17 #include "llvm/CodeGen/GCs.h"
  18 #include "llvm/CodeGen/GCStrategy.h"
  19
  20 using namespace llvm;
  21
  22 namespace {
  23   class OcamlGC : public GCStrategy {
  24   public:
  25     OcamlGC();
  26   };
  27 }
  28
  29 static GCRegistry::Add<OcamlGC>
  30 X("ocaml", "ocaml 3.10-compatible GC");
  31
  32 void llvm::linkOcamlGC() { }
  33
  34 OcamlGC::OcamlGC() {
  35   NeededSafePoints = 1 << GC::PostCall;
  36   UsesMetadata = true;
  37 }