duke@435: /*
stefank@2314:  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #ifndef CPU_SPARC_VM_C1_LINEARSCAN_SPARC_HPP
stefank@2314: #define CPU_SPARC_VM_C1_LINEARSCAN_SPARC_HPP
stefank@2314: 
duke@435: inline bool LinearScan::is_processed_reg_num(int reg_num) {
duke@435:   return reg_num < 26 || reg_num > 31;
duke@435: }
duke@435: 
duke@435: inline int LinearScan::num_physical_regs(BasicType type) {
duke@435:   // Sparc requires two cpu registers for long
duke@435:   // and two cpu registers for double
duke@435: #ifdef _LP64
duke@435:   if (type == T_DOUBLE) {
duke@435: #else
duke@435:   if (type == T_DOUBLE || type == T_LONG) {
duke@435: #endif
duke@435:     return 2;
duke@435:   }
duke@435:   return 1;
duke@435: }
duke@435: 
duke@435: 
duke@435: inline bool LinearScan::requires_adjacent_regs(BasicType type) {
duke@435: #ifdef _LP64
duke@435:   return type == T_DOUBLE;
duke@435: #else
duke@435:   return type == T_DOUBLE || type == T_LONG;
duke@435: #endif
duke@435: }
duke@435: 
duke@435: inline bool LinearScan::is_caller_save(int assigned_reg) {
duke@435:   return assigned_reg > pd_last_callee_saved_reg && assigned_reg <= pd_last_fpu_reg;
duke@435: }
duke@435: 
duke@435: 
duke@435: inline void LinearScan::pd_add_temps(LIR_Op* op) {
duke@435:   // No special case behaviours yet
duke@435: }
duke@435: 
duke@435: 
duke@435: inline bool LinearScanWalker::pd_init_regs_for_alloc(Interval* cur) {
duke@435:   if (allocator()->gen()->is_vreg_flag_set(cur->reg_num(), LIRGenerator::callee_saved)) {
duke@435:     assert(cur->type() != T_FLOAT && cur->type() != T_DOUBLE, "cpu regs only");
duke@435:     _first_reg = pd_first_callee_saved_reg;
duke@435:     _last_reg = pd_last_callee_saved_reg;
duke@435:     return true;
roland@2206:   } else if (cur->type() == T_INT || cur->type() == T_LONG || cur->type() == T_OBJECT || cur->type() == T_ADDRESS) {
duke@435:     _first_reg = pd_first_cpu_reg;
duke@435:     _last_reg = pd_last_allocatable_cpu_reg;
duke@435:     return true;
duke@435:   }
duke@435:   return false;
duke@435: }
stefank@2314: 
stefank@2314: #endif // CPU_SPARC_VM_C1_LINEARSCAN_SPARC_HPP