| /* |
| * Copyright 1999-2006 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| * |
| */ |
| |
| // On i486 the frame looks as follows: |
| // |
| // +-----------------------------+---------+----------------------------------------+----------------+----------- |
| // | size_arguments-nof_reg_args | 2 words | size_locals-size_arguments+numreg_args | _size_monitors | spilling . |
| // +-----------------------------+---------+----------------------------------------+----------------+----------- |
| // |
| // The FPU registers are mapped with their offset from TOS; therefore the |
| // status of FPU stack must be updated during code emission. |
| |
| public: |
| static const int pd_c_runtime_reserved_arg_size; |
| |
| enum { |
| nof_xmm_regs = pd_nof_xmm_regs_frame_map, |
| nof_caller_save_xmm_regs = pd_nof_caller_save_xmm_regs_frame_map, |
| first_available_sp_in_frame = 0, |
| frame_pad_in_bytes = 8, |
| nof_reg_args = 2 |
| }; |
| |
| private: |
| static LIR_Opr _caller_save_xmm_regs [nof_caller_save_xmm_regs]; |
| |
| static XMMRegister _xmm_regs[nof_xmm_regs]; |
| |
| public: |
| static LIR_Opr receiver_opr; |
| |
| static LIR_Opr rsi_opr; |
| static LIR_Opr rdi_opr; |
| static LIR_Opr rbx_opr; |
| static LIR_Opr rax_opr; |
| static LIR_Opr rdx_opr; |
| static LIR_Opr rcx_opr; |
| static LIR_Opr rsp_opr; |
| static LIR_Opr rbp_opr; |
| |
| static LIR_Opr rsi_oop_opr; |
| static LIR_Opr rdi_oop_opr; |
| static LIR_Opr rbx_oop_opr; |
| static LIR_Opr rax_oop_opr; |
| static LIR_Opr rdx_oop_opr; |
| static LIR_Opr rcx_oop_opr; |
| |
| static LIR_Opr rax_rdx_long_opr; |
| static LIR_Opr rbx_rcx_long_opr; |
| static LIR_Opr fpu0_float_opr; |
| static LIR_Opr fpu0_double_opr; |
| static LIR_Opr xmm0_float_opr; |
| static LIR_Opr xmm0_double_opr; |
| |
| static LIR_Opr as_long_opr(Register r, Register r2) { |
| return LIR_OprFact::double_cpu(cpu_reg2rnr(r), cpu_reg2rnr(r2)); |
| } |
| |
| // VMReg name for spilled physical FPU stack slot n |
| static VMReg fpu_regname (int n); |
| |
| static XMMRegister nr2xmmreg(int rnr); |
| |
| static bool is_caller_save_register (LIR_Opr opr) { return true; } |
| static bool is_caller_save_register (Register r) { return true; } |
| |
| static LIR_Opr caller_save_xmm_reg_at(int i) { |
| assert(i >= 0 && i < nof_caller_save_xmm_regs, "out of bounds"); |
| return _caller_save_xmm_regs[i]; |
| } |