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 #include "llvm/Support/Compiler.h"
  20
  21 using namespace llvm;
  22
  23 namespace {
  24   class VISIBILITY_HIDDEN OcamlGC : public GCStrategy {
  25   public:
  26     OcamlGC();
  27   };
  28 }
  29
  30 static GCRegistry::Add<OcamlGC>
  31 X("ocaml", "ocaml 3.10-compatible GC");
  32
  33 void llvm::linkOcamlGC() { }
  34
  35 OcamlGC::OcamlGC() {
  36   NeededSafePoints = 1 << GC::PostCall;
  37   UsesMetadata = true;
  38 }