| /* |
| * Copyright (c) 2005, 2012, 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_SPARC_VM_C1_LINEARSCAN_SPARC_HPP |
| #define CPU_SPARC_VM_C1_LINEARSCAN_SPARC_HPP |
| |
| inline bool LinearScan::is_processed_reg_num(int reg_num) { |
| return reg_num < 26 || reg_num > 31; |
| } |
| |
| inline int LinearScan::num_physical_regs(BasicType type) { |
| // Sparc requires two cpu registers for long |
| // and two cpu registers for double |
| #ifdef _LP64 |
| if (type == T_DOUBLE) { |
| #else |
| if (type == T_DOUBLE || type == T_LONG) { |
| #endif |
| return 2; |
| } |
| return 1; |
| } |
| |
| |
| inline bool LinearScan::requires_adjacent_regs(BasicType type) { |
| #ifdef _LP64 |
| return type == T_DOUBLE; |
| #else |
| return type == T_DOUBLE || type == T_LONG; |
| #endif |
| } |
| |
| inline bool LinearScan::is_caller_save(int assigned_reg) { |
| return assigned_reg > pd_last_callee_saved_reg && assigned_reg <= pd_last_fpu_reg; |
| } |
| |
| |
| inline void LinearScan::pd_add_temps(LIR_Op* op) { |
| // No special case behaviours yet |
| } |
| |
| |
| 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_SPARC_VM_C1_LINEARSCAN_SPARC_HPP |