| Quellcodebibliothek Statistik Leitseite products/Sources/formale Sprachen/Java/Openjdk/src/hotspot/cpu/x86/ (Sun/Oracle ©) Datei vom 13.11.2022 mit Größe 5 kB |
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Quelle c1_FrameMap_x86.hpp Sprache: C |
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/*
* Copyright (c) 1999, 2019, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef CPU_X86_C1_FRAMEMAP_X86_HPP #define CPU_X86_C1_FRAMEMAP_X86_HPP // On i486 the frame looks as follows: // // +-----------------------------+---------+------------------------------------- // | size_arguments-nof_reg_args | 2 words | size_locals-size_arguments+numreg_args | _si // +-----------------------------+---------+------------------------------------- // // 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, #ifndef _LP64 frame_pad_in_bytes = 8, nof_reg_args = 2 #else frame_pad_in_bytes = 16, nof_reg_args = 6 #endif // _LP64 }; 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 rsi_metadata_opr; static LIR_Opr rdi_metadata_opr; static LIR_Opr rbx_metadata_opr; static LIR_Opr rax_metadata_opr; static LIR_Opr rdx_metadata_opr; static LIR_Opr rcx_metadata_opr; #ifdef _LP64 static LIR_Opr r8_opr; static LIR_Opr r9_opr; static LIR_Opr r10_opr; static LIR_Opr r11_opr; static LIR_Opr r12_opr; static LIR_Opr r13_opr; static LIR_Opr r14_opr; static LIR_Opr r15_opr; static LIR_Opr r8_oop_opr; static LIR_Opr r9_oop_opr; static LIR_Opr r11_oop_opr; static LIR_Opr r12_oop_opr; static LIR_Opr r13_oop_opr; static LIR_Opr r14_oop_opr; static LIR_Opr r8_metadata_opr; static LIR_Opr r9_metadata_opr; static LIR_Opr r11_metadata_opr; static LIR_Opr r12_metadata_opr; static LIR_Opr r13_metadata_opr; static LIR_Opr r14_metadata_opr; #endif // _LP64 static LIR_Opr long0_opr; static LIR_Opr long1_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; #ifdef _LP64 static LIR_Opr as_long_opr(Register r) { return LIR_OprFact::double_cpu(cpu_reg2rnr(r), cpu_reg2rnr(r)); } static LIR_Opr as_pointer_opr(Register r) { return LIR_OprFact::double_cpu(cpu_reg2rnr(r), cpu_reg2rnr(r)); } #else static LIR_Opr as_long_opr(Register r, Register r2) { return LIR_OprFact::double_cpu(cpu_reg2rnr(r), cpu_reg2rnr(r2)); } static LIR_Opr as_pointer_opr(Register r) { return LIR_OprFact::single_cpu(cpu_reg2rnr(r)); } #endif // _LP64 // 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]; } static int adjust_reg_range(int range) { // Reduce the number of available regs (to free r12) in case of compressed oops if (UseCompressedOops) return range - 1; return range; } static int get_num_caller_save_xmms() { return XMMRegister::available_xmm_registers(); } static int nof_caller_save_cpu_regs() { return adjust_reg_range(pd_nof_caller_save_cp static int last_cpu_reg() { return adjust_reg_range(pd_last_cpu_reg); } static int last_byte_reg() { return adjust_reg_range(pd_last_byte_reg); } #endif // CPU_X86_C1_FRAMEMAP_X86_HPP ¤ Dauer der Verarbeitung: 0.1 Sekunden (vorverarbeitet) ¤*© Formatika GbR, Deutschland |
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2026-03-28