Wed, 07 Jan 2009 11:23:28 -0800
6790182: matcher.cpp:1375: assert(false,"bad AD file")
Summary: Add a match rule for regD_low in regD definition.
Reviewed-by: never
1 /*
2 * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
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 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
25 # include "incls/_precompiled.incl"
26 # include "incls/_vm_version_sparc.cpp.incl"
28 int VM_Version::_features = VM_Version::unknown_m;
29 const char* VM_Version::_features_str = "";
31 bool VM_Version::is_niagara1_plus() {
32 // This is a placeholder until the real test is determined.
33 return is_niagara1() &&
34 (os::processor_count() > maximum_niagara1_processor_count());
35 }
37 void VM_Version::initialize() {
38 _features = determine_features();
39 PrefetchCopyIntervalInBytes = prefetch_copy_interval_in_bytes();
40 PrefetchScanIntervalInBytes = prefetch_scan_interval_in_bytes();
41 PrefetchFieldsAhead = prefetch_fields_ahead();
43 // Allocation prefetch settings
44 intx cache_line_size = L1_data_cache_line_size();
45 if( cache_line_size > AllocatePrefetchStepSize )
46 AllocatePrefetchStepSize = cache_line_size;
47 if( FLAG_IS_DEFAULT(AllocatePrefetchLines) )
48 AllocatePrefetchLines = 3; // Optimistic value
49 assert( AllocatePrefetchLines > 0, "invalid value");
50 if( AllocatePrefetchLines < 1 ) // set valid value in product VM
51 AllocatePrefetchLines = 1; // Conservative value
53 AllocatePrefetchDistance = allocate_prefetch_distance();
54 AllocatePrefetchStyle = allocate_prefetch_style();
56 assert(AllocatePrefetchDistance % AllocatePrefetchStepSize == 0, "invalid value");
58 UseSSE = 0; // Only on x86 and x64
60 _supports_cx8 = has_v9();
62 if (is_niagara1()) {
63 // Indirect branch is the same cost as direct
64 if (FLAG_IS_DEFAULT(UseInlineCaches)) {
65 UseInlineCaches = false;
66 }
67 #ifdef _LP64
68 // Single issue niagara1 is slower for CompressedOops
69 // but niagaras after that it's fine.
70 if (!is_niagara1_plus()) {
71 if (FLAG_IS_DEFAULT(UseCompressedOops)) {
72 FLAG_SET_ERGO(bool, UseCompressedOops, false);
73 }
74 }
75 #endif // _LP64
76 #ifdef COMPILER2
77 // Indirect branch is the same cost as direct
78 if (FLAG_IS_DEFAULT(UseJumpTables)) {
79 UseJumpTables = true;
80 }
81 // Single-issue, so entry and loop tops are
82 // aligned on a single instruction boundary
83 if (FLAG_IS_DEFAULT(InteriorEntryAlignment)) {
84 InteriorEntryAlignment = 4;
85 }
86 if (FLAG_IS_DEFAULT(OptoLoopAlignment)) {
87 OptoLoopAlignment = 4;
88 }
89 #endif
90 }
92 char buf[512];
93 jio_snprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s",
94 (has_v8() ? ", has_v8" : ""),
95 (has_v9() ? ", has_v9" : ""),
96 (has_vis1() ? ", has_vis1" : ""),
97 (has_vis2() ? ", has_vis2" : ""),
98 (is_ultra3() ? ", is_ultra3" : ""),
99 (is_sun4v() ? ", is_sun4v" : ""),
100 (is_niagara1() ? ", is_niagara1" : ""),
101 (!has_hardware_int_muldiv() ? ", no-muldiv" : ""),
102 (!has_hardware_fsmuld() ? ", no-fsmuld" : ""));
104 // buf is started with ", " or is empty
105 _features_str = strdup(strlen(buf) > 2 ? buf + 2 : buf);
107 #ifndef PRODUCT
108 if (PrintMiscellaneous && Verbose) {
109 tty->print("Allocation: ");
110 if (AllocatePrefetchStyle <= 0) {
111 tty->print_cr("no prefetching");
112 } else {
113 if (AllocatePrefetchLines > 1) {
114 tty->print_cr("PREFETCH %d, %d lines of size %d bytes", AllocatePrefetchDistance, AllocatePrefetchLines, AllocatePrefetchStepSize);
115 } else {
116 tty->print_cr("PREFETCH %d, one line", AllocatePrefetchDistance);
117 }
118 }
119 if (PrefetchCopyIntervalInBytes > 0) {
120 tty->print_cr("PrefetchCopyIntervalInBytes %d", PrefetchCopyIntervalInBytes);
121 }
122 if (PrefetchScanIntervalInBytes > 0) {
123 tty->print_cr("PrefetchScanIntervalInBytes %d", PrefetchScanIntervalInBytes);
124 }
125 if (PrefetchFieldsAhead > 0) {
126 tty->print_cr("PrefetchFieldsAhead %d", PrefetchFieldsAhead);
127 }
128 }
129 #endif // PRODUCT
130 }
132 void VM_Version::print_features() {
133 tty->print_cr("Version:%s", cpu_features());
134 }
136 int VM_Version::determine_features() {
137 if (UseV8InstrsOnly) {
138 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) tty->print_cr("Version is Forced-V8");)
139 return generic_v8_m;
140 }
142 int features = platform_features(unknown_m); // platform_features() is os_arch specific
144 if (features == unknown_m) {
145 features = generic_v9_m;
146 warning("Cannot recognize SPARC version. Default to V9");
147 }
149 if (UseNiagaraInstrs) {
150 if (is_niagara1(features)) {
151 // Happy to accomodate...
152 } else {
153 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) tty->print_cr("Version is Forced-Niagara");)
154 features = niagara1_m;
155 }
156 } else {
157 if (is_niagara1(features) && !FLAG_IS_DEFAULT(UseNiagaraInstrs)) {
158 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) tty->print_cr("Version is Forced-Not-Niagara");)
159 features &= ~niagara1_unique_m;
160 } else {
161 // Happy to accomodate...
162 }
163 }
165 return features;
166 }
168 static int saved_features = 0;
170 void VM_Version::allow_all() {
171 saved_features = _features;
172 _features = all_features_m;
173 }
175 void VM_Version::revert() {
176 _features = saved_features;
177 }
179 unsigned int VM_Version::calc_parallel_worker_threads() {
180 unsigned int result;
181 if (is_niagara1_plus()) {
182 result = nof_parallel_worker_threads(5, 16, 8);
183 } else {
184 result = nof_parallel_worker_threads(5, 8, 8);
185 }
186 return result;
187 }