Mercurial > hg > truffle
annotate src/cpu/sparc/vm/c1_LinearScan_sparc.hpp @ 2396:b868d9928221
Merge
author | twisti |
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date | Thu, 24 Mar 2011 23:04:40 -0700 |
parents | f95d63e2154a |
children | 7edbe32b9802 |
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0 | 1 /* |
1972 | 2 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef CPU_SPARC_VM_C1_LINEARSCAN_SPARC_HPP |
26 #define CPU_SPARC_VM_C1_LINEARSCAN_SPARC_HPP | |
27 | |
0 | 28 inline bool LinearScan::is_processed_reg_num(int reg_num) { |
29 return reg_num < 26 || reg_num > 31; | |
30 } | |
31 | |
32 inline int LinearScan::num_physical_regs(BasicType type) { | |
33 // Sparc requires two cpu registers for long | |
34 // and two cpu registers for double | |
35 #ifdef _LP64 | |
36 if (type == T_DOUBLE) { | |
37 #else | |
38 if (type == T_DOUBLE || type == T_LONG) { | |
39 #endif | |
40 return 2; | |
41 } | |
42 return 1; | |
43 } | |
44 | |
45 | |
46 inline bool LinearScan::requires_adjacent_regs(BasicType type) { | |
47 #ifdef _LP64 | |
48 return type == T_DOUBLE; | |
49 #else | |
50 return type == T_DOUBLE || type == T_LONG; | |
51 #endif | |
52 } | |
53 | |
54 inline bool LinearScan::is_caller_save(int assigned_reg) { | |
55 return assigned_reg > pd_last_callee_saved_reg && assigned_reg <= pd_last_fpu_reg; | |
56 } | |
57 | |
58 | |
59 inline void LinearScan::pd_add_temps(LIR_Op* op) { | |
60 // No special case behaviours yet | |
61 } | |
62 | |
63 | |
64 inline bool LinearScanWalker::pd_init_regs_for_alloc(Interval* cur) { | |
65 if (allocator()->gen()->is_vreg_flag_set(cur->reg_num(), LIRGenerator::callee_saved)) { | |
66 assert(cur->type() != T_FLOAT && cur->type() != T_DOUBLE, "cpu regs only"); | |
67 _first_reg = pd_first_callee_saved_reg; | |
68 _last_reg = pd_last_callee_saved_reg; | |
69 return true; | |
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70 } else if (cur->type() == T_INT || cur->type() == T_LONG || cur->type() == T_OBJECT || cur->type() == T_ADDRESS) { |
0 | 71 _first_reg = pd_first_cpu_reg; |
72 _last_reg = pd_last_allocatable_cpu_reg; | |
73 return true; | |
74 } | |
75 return false; | |
76 } | |
1972 | 77 |
78 #endif // CPU_SPARC_VM_C1_LINEARSCAN_SPARC_HPP |