1 //===-- ErlangGC.cpp - Erlang/OTP GC strategy -------------------*- C++ -*-===// 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 the Erlang/OTP runtime-compatible garbage collector 11 // (e.g. defines safe points, root initialization etc.) 12 // 13 // The frametable emitter is in ErlangGCPrinter.cpp. 14 // 15 //===----------------------------------------------------------------------===// 16 17 #include "llvm/CodeGen/GCs.h" 18 #include "llvm/CodeGen/GCStrategy.h" 19 #include "llvm/CodeGen/MachineInstrBuilder.h" 20 #include "llvm/MC/MCContext.h" 21 #include "llvm/MC/MCSymbol.h" 22 #include "llvm/Target/TargetInstrInfo.h" 23 #include "llvm/Target/TargetMachine.h" 24 #include "llvm/Target/TargetSubtargetInfo.h" 25 26 using namespace llvm; 27 28 namespace { 29 30 class ErlangGC : public GCStrategy { 31 public: 32 ErlangGC(); 33 }; 34 } 35 36 static GCRegistry::Add<ErlangGC> X("erlang", 37 "erlang-compatible garbage collector"); 38 39 void llvm::linkErlangGC() {} 40 41 ErlangGC::ErlangGC() { 42 InitRoots = false; 43 NeededSafePoints = 1 << GC::PostCall; 44 UsesMetadata = true; 45 CustomRoots = false; 46 } 47
