1 /* 2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "gc/shared/barrierSetCodeGen.hpp" 26 #include "interpreter/interp_masm.hpp" 27 28 #define __ masm-> 29 30 void BarrierSetCodeGen::load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 31 Register dst, Address src, Register tmp1, Register tmp2) { 32 bool on_heap = (decorators & ACCESS_ON_HEAP) != 0; 33 bool on_root = (decorators & ACCESS_ON_ROOT) != 0; 34 switch (type) { 35 case T_OBJECT: 36 case T_ARRAY: { 37 if (on_heap) { 38 __ load_heap_oop(dst, src); 39 } else { 40 assert(on_root, "why else?"); 41 __ movptr(dst, src); 42 } 43 break; 44 } 45 default: Unimplemented(); 46 } 47 } 48 49 void BarrierSetCodeGen::store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 50 Address dst, Register val, Register tmp1, Register tmp2) { 51 bool on_heap = (decorators & ACCESS_ON_HEAP) != 0; 52 bool on_root = (decorators & ACCESS_ON_ROOT) != 0; 53 switch (type) { 54 case T_OBJECT: 55 case T_ARRAY: { 56 if (on_heap) { 57 __ store_heap_oop(dst, val); 58 } else { 59 assert(on_root, "why else?"); 60 __ movptr(dst, val); 61 } 62 break; 63 } 64 default: Unimplemented(); 65 } 66 }