1 /*
2 * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2012, 2015 SAP SE. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 #ifndef CPU_PPC_VM_C1_LINEARSCAN_PPC_HPP
27 #define CPU_PPC_VM_C1_LINEARSCAN_PPC_HPP
28
is_processed_reg_num(int reg_num)29 inline bool LinearScan::is_processed_reg_num(int reg_num) {
30 assert(FrameMap::R0_opr->cpu_regnr() == FrameMap::last_cpu_reg() + 1, "wrong assumption below");
31 assert(FrameMap::R1_opr->cpu_regnr() == FrameMap::last_cpu_reg() + 2, "wrong assumption below");
32 assert(FrameMap::R13_opr->cpu_regnr() == FrameMap::last_cpu_reg() + 3, "wrong assumption below");
33 assert(FrameMap::R16_opr->cpu_regnr() == FrameMap::last_cpu_reg() + 4, "wrong assumption below");
34 assert(FrameMap::R29_opr->cpu_regnr() == FrameMap::last_cpu_reg() + 5, "wrong assumption below");
35 return reg_num <= FrameMap::last_cpu_reg() || reg_num >= pd_nof_cpu_regs_frame_map;
36 }
37
num_physical_regs(BasicType type)38 inline int LinearScan::num_physical_regs(BasicType type) {
39 return 1;
40 }
41
42
requires_adjacent_regs(BasicType type)43 inline bool LinearScan::requires_adjacent_regs(BasicType type) {
44 return false;
45 }
46
is_caller_save(int assigned_reg)47 inline bool LinearScan::is_caller_save(int assigned_reg) {
48 return true; // assigned_reg < pd_first_callee_saved_reg;
49 }
50
51
pd_add_temps(LIR_Op * op)52 inline void LinearScan::pd_add_temps(LIR_Op* op) {
53 // No special case behaviours yet
54 }
55
56
pd_init_regs_for_alloc(Interval * cur)57 inline bool LinearScanWalker::pd_init_regs_for_alloc(Interval* cur) {
58 if (allocator()->gen()->is_vreg_flag_set(cur->reg_num(), LIRGenerator::callee_saved)) {
59 assert(cur->type() != T_FLOAT && cur->type() != T_DOUBLE, "cpu regs only");
60 _first_reg = pd_first_callee_saved_reg;
61 _last_reg = pd_last_callee_saved_reg;
62 ShouldNotReachHere(); // Currently no callee saved regs.
63 return true;
64 } else if (cur->type() == T_INT || cur->type() == T_LONG || cur->type() == T_OBJECT ||
65 cur->type() == T_ADDRESS || cur->type() == T_METADATA) {
66 _first_reg = pd_first_cpu_reg;
67 _last_reg = pd_last_cpu_reg;
68 return true;
69 }
70 return false;
71 }
72
73 #endif // CPU_PPC_VM_C1_LINEARSCAN_PPC_HPP
74