1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/cpu/sparc/vm/c1_LinearScan_sparc.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,78 @@
1.4 +/*
1.5 + * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#ifndef CPU_SPARC_VM_C1_LINEARSCAN_SPARC_HPP
1.29 +#define CPU_SPARC_VM_C1_LINEARSCAN_SPARC_HPP
1.30 +
1.31 +inline bool LinearScan::is_processed_reg_num(int reg_num) {
1.32 + return reg_num < 26 || reg_num > 31;
1.33 +}
1.34 +
1.35 +inline int LinearScan::num_physical_regs(BasicType type) {
1.36 + // Sparc requires two cpu registers for long
1.37 + // and two cpu registers for double
1.38 +#ifdef _LP64
1.39 + if (type == T_DOUBLE) {
1.40 +#else
1.41 + if (type == T_DOUBLE || type == T_LONG) {
1.42 +#endif
1.43 + return 2;
1.44 + }
1.45 + return 1;
1.46 +}
1.47 +
1.48 +
1.49 +inline bool LinearScan::requires_adjacent_regs(BasicType type) {
1.50 +#ifdef _LP64
1.51 + return type == T_DOUBLE;
1.52 +#else
1.53 + return type == T_DOUBLE || type == T_LONG;
1.54 +#endif
1.55 +}
1.56 +
1.57 +inline bool LinearScan::is_caller_save(int assigned_reg) {
1.58 + return assigned_reg > pd_last_callee_saved_reg && assigned_reg <= pd_last_fpu_reg;
1.59 +}
1.60 +
1.61 +
1.62 +inline void LinearScan::pd_add_temps(LIR_Op* op) {
1.63 + // No special case behaviours yet
1.64 +}
1.65 +
1.66 +
1.67 +inline bool LinearScanWalker::pd_init_regs_for_alloc(Interval* cur) {
1.68 + if (allocator()->gen()->is_vreg_flag_set(cur->reg_num(), LIRGenerator::callee_saved)) {
1.69 + assert(cur->type() != T_FLOAT && cur->type() != T_DOUBLE, "cpu regs only");
1.70 + _first_reg = pd_first_callee_saved_reg;
1.71 + _last_reg = pd_last_callee_saved_reg;
1.72 + return true;
1.73 + } else if (cur->type() == T_INT || cur->type() == T_LONG || cur->type() == T_OBJECT || cur->type() == T_ADDRESS || cur->type() == T_METADATA) {
1.74 + _first_reg = pd_first_cpu_reg;
1.75 + _last_reg = pd_last_allocatable_cpu_reg;
1.76 + return true;
1.77 + }
1.78 + return false;
1.79 +}
1.80 +
1.81 +#endif // CPU_SPARC_VM_C1_LINEARSCAN_SPARC_HPP
