lib/CodeGen/OcamlGC.cpp

   1 //===-- OcamlCollector.cpp - Ocaml frametable emitter ---------------------===//
   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 //===----------------------------------------------------------------------===//
  14
  15 #include "llvm/CodeGen/GCs.h"
  16 #include "llvm/CodeGen/AsmPrinter.h"
  17 #include "llvm/CodeGen/GCStrategy.h"
  18 #include "llvm/Module.h"
  19 #include "llvm/Target/TargetAsmInfo.h"
  20 #include "llvm/Target/TargetData.h"
  21 #include "llvm/Target/TargetMachine.h"
  22
  23 using namespace llvm;
  24
  25 namespace {
  26
  27   class VISIBILITY_HIDDEN OcamlCollector : public Collector {
  28   public:
  29     OcamlCollector();
  30   };
  31
  32 }
  33
  34 static CollectorRegistry::Add<OcamlCollector>
  35 X("ocaml", "ocaml 3.10-compatible collector");
  36
  37 // -----------------------------------------------------------------------------
  38
  39 Collector *llvm::createOcamlCollector() {
  40   return new OcamlCollector();
  41 }
  42
  43 OcamlCollector::OcamlCollector() {
  44   NeededSafePoints = 1 << GC::PostCall;
  45   UsesMetadata = true;
  46 }