Tue, 26 Jul 2016 17:06:17 +0800
Add multiply word to GPR instruction (mul) in MIPS assembler.
1 /*
2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2015, 2016, Loongson Technology. 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 */
26 #include "precompiled.hpp"
27 #include "asm/macroAssembler.hpp"
28 #include "asm/macroAssembler.inline.hpp"
29 #include "memory/resourceArea.hpp"
30 #include "runtime/java.hpp"
31 #include "runtime/stubCodeGenerator.hpp"
32 #include "vm_version_mips.hpp"
33 #ifdef TARGET_OS_FAMILY_linux
34 # include "os_linux.inline.hpp"
35 #endif
36 #ifdef TARGET_OS_FAMILY_solaris
37 # include "os_solaris.inline.hpp"
38 #endif
39 #ifdef TARGET_OS_FAMILY_windows
40 # include "os_windows.inline.hpp"
41 #endif
42 #ifdef TARGET_OS_FAMILY_bsd
43 # include "os_bsd.inline.hpp"
44 #endif
45 /*
46 int VM_Version::_cpu;
47 int VM_Version::_model;
48 int VM_Version::_stepping;
49 int VM_Version::_cpuFeatures;
50 const char* VM_Version::_features_str = "";
51 VM_Version::CpuidInfo VM_Version::_cpuid_info = { 0, };
53 static BufferBlob* stub_blob;
54 static const int stub_size = 300;
56 extern "C" {
57 typedef void (*getPsrInfo_stub_t)(void*);
58 }
59 static getPsrInfo_stub_t getPsrInfo_stub = NULL;
60 */
61 int VM_Version::_features = VM_Version::unknown_m;
62 const char* VM_Version::_features_str = "";
63 /*
64 class VM_Version_StubGenerator: public StubCodeGenerator {
65 public:
67 VM_Version_StubGenerator(CodeBuffer *c) : StubCodeGenerator(c) {}
69 address generate_getPsrInfo() {
70 };
71 };
74 void VM_Version::get_processor_features() {
75 }
76 */
77 void VM_Version::initialize() {
78 _features = determine_features();
79 //no need, Abstract_VM_Version already define it as false
80 _supports_cx8 = true;
82 char buf[256];
83 jio_snprintf(buf, sizeof(buf), "%s, %s"
84 #ifdef OPT_RANGECHECK
85 ", optimized range check"
86 #endif
87 #ifdef OPT_PHI_1
88 ", optimized phi"
89 #endif
90 #ifdef OPT_MERGE
91 ", optimized merge"
92 #endif
93 , (has_l2_cache() ? "has_l2_cache" : ""), (has_16k_page() ? "has_16k_page" : "")
94 );
95 //////////////////////add some other feature here//////////////////
97 // buf is started with ", " or is empty
98 _features_str = strdup(buf);
99 NOT_PRODUCT( if (PrintMiscellaneous && Verbose) print_features(); );
100 }
102 void VM_Version::print_features() {
103 tty->print_cr("Version:%s", cpu_features());
104 }
106 int VM_Version::determine_features() {
107 //////////////////////add some other feature here//////////////////
108 return spt_16k_page_m;
109 }
111 static int saved_features = 0;
113 void VM_Version::allow_all() {
114 saved_features = _features;
115 _features = all_features_m;
116 }
118 void VM_Version::revert() {
119 _features = saved_features;
120 }