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view src/cpu/aarch64/vm/c1_LinearScan_aarch64.hpp @ 10923:f79e943d15a7
Merge jdk8u292-b05
author | Andrew John Hughes <gnu_andrew@member.fsf.org> |
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date | Sun, 25 Apr 2021 18:18:49 +0100 |
parents | 4020f25a52c2 f57189b7648d |
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/* * Copyright (c) 2013, Red Hat Inc. * Copyright (c) 2005, 2010, 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_AARCH64_VM_C1_LINEARSCAN_HPP #define CPU_AARCH64_VM_C1_LINEARSCAN_HPP inline bool LinearScan::is_processed_reg_num(int reg_num) { return reg_num <= FrameMap::last_cpu_reg() || reg_num >= pd_nof_cpu_regs_frame_map; } inline int LinearScan::num_physical_regs(BasicType type) { return 1; } inline bool LinearScan::requires_adjacent_regs(BasicType type) { return false; } inline bool LinearScan::is_caller_save(int assigned_reg) { assert(assigned_reg >= 0 && assigned_reg < nof_regs, "should call this only for registers"); if (assigned_reg < pd_first_callee_saved_reg) return true; if (assigned_reg > pd_last_callee_saved_reg && assigned_reg < pd_first_callee_saved_fpu_reg) return true; if (assigned_reg > pd_last_callee_saved_fpu_reg && assigned_reg < pd_last_fpu_reg) return true; return false; } inline void LinearScan::pd_add_temps(LIR_Op* op) { // FIXME ?? } // Implementation of LinearScanWalker inline bool LinearScanWalker::pd_init_regs_for_alloc(Interval* cur) { if (allocator()->gen()->is_vreg_flag_set(cur->reg_num(), LIRGenerator::callee_saved)) { assert(cur->type() != T_FLOAT && cur->type() != T_DOUBLE, "cpu regs only"); _first_reg = pd_first_callee_saved_reg; _last_reg = pd_last_callee_saved_reg; return true; } else if (cur->type() == T_INT || cur->type() == T_LONG || cur->type() == T_OBJECT || cur->type() == T_ADDRESS || cur->type() == T_METADATA) { _first_reg = pd_first_cpu_reg; _last_reg = pd_last_allocatable_cpu_reg; return true; } return false; } #endif // CPU_AARCH64_VM_C1_LINEARSCAN_HPP