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> X("ocaml", "ocaml 3.10-compatible GC");
30 
linkOcamlGC()31 void llvm::linkOcamlGC() {}
32 
OcamlGC()33 OcamlGC::OcamlGC() {
34   NeededSafePoints = 1 << GC::PostCall;
35   UsesMetadata = true;
36 }
37