1 /* 2 * Copyright (c) 2000, 2010, 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 private: 26 27 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 28 // 29 // Sparc load/store emission 30 // 31 // The sparc ld/st instructions cannot accomodate displacements > 13 bits long. 32 // The following "pseudo" sparc instructions (load/store) make it easier to use the indexed addressing mode 33 // by allowing 32 bit displacements: 34 // 35 // When disp <= 13 bits long, a single load or store instruction is emitted with (disp + [d]). 36 // When disp > 13 bits long, code is emitted to set the displacement into the O7 register, 37 // and then a load or store is emitted with ([O7] + [d]). 38 // 39 40 int store(LIR_Opr from_reg, Register base, int offset, BasicType type, bool wide, bool unaligned); 41 int store(LIR_Opr from_reg, Register base, Register disp, BasicType type, bool wide); 42 43 int load(Register base, int offset, LIR_Opr to_reg, BasicType type, bool wide, bool unaligned); 44 int load(Register base, Register disp, LIR_Opr to_reg, BasicType type, bool wide); 45 46 void monitorexit(LIR_Opr obj_opr, LIR_Opr lock_opr, Register hdr, int monitor_no); 47 48 int shift_amount(BasicType t); 49 50 static bool is_single_instruction(LIR_Op* op); 51 52 // Record the type of the receiver in ReceiverTypeData 53 void type_profile_helper(Register mdo, int mdo_offset_bias, 54 ciMethodData *md, ciProfileData *data, 55 Register recv, Register tmp1, Label* update_done); 56 // Setup pointers to MDO, MDO slot, also compute offset bias to access the slot. 57 void setup_md_access(ciMethod* method, int bci, 58 ciMethodData*& md, ciProfileData*& data, int& mdo_offset_bias); 59 public: 60 void pack64(LIR_Opr src, LIR_Opr dst); 61 void unpack64(LIR_Opr src, LIR_Opr dst); 62 63 enum { 64 #ifdef _LP64 65 call_stub_size = 68, 66 #else 67 call_stub_size = 20, 68 #endif // _LP64 69 exception_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(10*4), 70 deopt_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(10*4) };