1 /*
2 * Copyright (c) 1999, 2017, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "c1/c1_Compilation.hpp"
27 #include "c1/c1_Compiler.hpp"
28 #include "c1/c1_FrameMap.hpp"
29 #include "c1/c1_GraphBuilder.hpp"
30 #include "c1/c1_LinearScan.hpp"
31 #include "c1/c1_MacroAssembler.hpp"
32 #include "c1/c1_Runtime1.hpp"
33 #include "c1/c1_ValueType.hpp"
34 #include "compiler/compileBroker.hpp"
35 #include "interpreter/linkResolver.hpp"
36 #include "memory/allocation.hpp"
37 #include "memory/allocation.inline.hpp"
38 #include "memory/resourceArea.hpp"
39 #include "prims/nativeLookup.hpp"
40 #include "runtime/arguments.hpp"
41 #include "runtime/interfaceSupport.hpp"
42 #include "runtime/sharedRuntime.hpp"
43 #include "utilities/bitMap.inline.hpp"
44
45
46 Compiler::Compiler() : AbstractCompiler(compiler_c1) {
47 }
48
49 void Compiler::init_c1_runtime() {
50 BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
51 Arena* arena = new (mtCompiler) Arena(mtCompiler);
52 Runtime1::initialize(buffer_blob);
53 FrameMap::initialize();
54 // initialize data structures
55 ValueType::initialize(arena);
56 GraphBuilder::initialize();
57 // note: to use more than one instance of LinearScan at a time this function call has to
58 // be moved somewhere outside of this constructor:
59 Interval::initialize(arena);
60 }
61
62
63 void Compiler::initialize() {
64 // Buffer blob must be allocated per C1 compiler thread at startup
65 BufferBlob* buffer_blob = init_buffer_blob();
66
67 if (should_perform_init()) {
68 if (buffer_blob == NULL) {
69 // When we come here we are in state 'initializing'; entire C1 compilation
70 // can be shut down.
71 set_state(failed);
72 } else {
73 init_c1_runtime();
74 set_state(initialized);
75 }
76 }
77 }
78
79 int Compiler::code_buffer_size() {
80 assert(SegmentedCodeCache, "Should be only used with a segmented code cache");
81 return Compilation::desired_max_code_buffer_size() + Compilation::desired_max_constant_size();
82 }
83
84 BufferBlob* Compiler::init_buffer_blob() {
85 // Allocate buffer blob once at startup since allocation for each
86 // compilation seems to be too expensive (at least on Intel win32).
87 assert (CompilerThread::current()->get_buffer_blob() == NULL, "Should initialize only once");
88
89 // setup CodeBuffer. Preallocate a BufferBlob of size
90 // NMethodSizeLimit plus some extra space for constants.
91 int code_buffer_size = Compilation::desired_max_code_buffer_size() +
92 Compilation::desired_max_constant_size();
93
94 BufferBlob* buffer_blob = BufferBlob::create("C1 temporary CodeBuffer", code_buffer_size);
95 if (buffer_blob != NULL) {
96 CompilerThread::current()->set_buffer_blob(buffer_blob);
97 }
98
99 return buffer_blob;
100 }
101
102 bool Compiler::is_intrinsic_supported(const methodHandle& method) {
103 vmIntrinsics::ID id = method->intrinsic_id();
104 assert(id != vmIntrinsics::_none, "must be a VM intrinsic");
105
106 if (method->is_synchronized()) {
107 // C1 does not support intrinsification of synchronized methods.
108 return false;
109 }
110
111 switch (id) {
112 case vmIntrinsics::_compareAndSetLong:
113 if (!VM_Version::supports_cx8()) return false;
114 break;
115 case vmIntrinsics::_getAndAddInt:
116 if (!VM_Version::supports_atomic_getadd4()) return false;
117 break;
118 case vmIntrinsics::_getAndAddLong:
119 if (!VM_Version::supports_atomic_getadd8()) return false;
120 break;
121 case vmIntrinsics::_getAndSetInt:
122 if (!VM_Version::supports_atomic_getset4()) return false;
123 break;
124 case vmIntrinsics::_getAndSetLong:
125 if (!VM_Version::supports_atomic_getset8()) return false;
126 break;
127 case vmIntrinsics::_getAndSetObject:
128 #ifdef _LP64
129 if (!UseCompressedOops && !VM_Version::supports_atomic_getset8()) return false;
130 if (UseCompressedOops && !VM_Version::supports_atomic_getset4()) return false;
131 #else
132 if (!VM_Version::supports_atomic_getset4()) return false;
133 #endif
134 break;
135 case vmIntrinsics::_onSpinWait:
136 if (!VM_Version::supports_on_spin_wait()) return false;
137 break;
138 case vmIntrinsics::_arraycopy:
139 case vmIntrinsics::_currentTimeMillis:
140 case vmIntrinsics::_nanoTime:
141 case vmIntrinsics::_Reference_get:
142 // Use the intrinsic version of Reference.get() so that the value in
143 // the referent field can be registered by the G1 pre-barrier code.
144 // Also to prevent commoning reads from this field across safepoint
145 // since GC can change its value.
146 case vmIntrinsics::_loadFence:
147 case vmIntrinsics::_storeFence:
148 case vmIntrinsics::_fullFence:
149 case vmIntrinsics::_floatToRawIntBits:
150 case vmIntrinsics::_intBitsToFloat:
151 case vmIntrinsics::_doubleToRawLongBits:
152 case vmIntrinsics::_longBitsToDouble:
153 case vmIntrinsics::_getClass:
154 case vmIntrinsics::_isInstance:
155 case vmIntrinsics::_isPrimitive:
156 case vmIntrinsics::_currentThread:
157 case vmIntrinsics::_dabs:
158 case vmIntrinsics::_dsqrt:
159 case vmIntrinsics::_dsin:
160 case vmIntrinsics::_dcos:
161 case vmIntrinsics::_dtan:
162 case vmIntrinsics::_dlog:
163 case vmIntrinsics::_dlog10:
164 case vmIntrinsics::_dexp:
165 case vmIntrinsics::_dpow:
166 case vmIntrinsics::_fmaD:
167 case vmIntrinsics::_fmaF:
168 case vmIntrinsics::_getObject:
169 case vmIntrinsics::_getBoolean:
170 case vmIntrinsics::_getByte:
171 case vmIntrinsics::_getShort:
172 case vmIntrinsics::_getChar:
173 case vmIntrinsics::_getInt:
174 case vmIntrinsics::_getLong:
175 case vmIntrinsics::_getFloat:
176 case vmIntrinsics::_getDouble:
177 case vmIntrinsics::_putObject:
178 case vmIntrinsics::_putBoolean:
179 case vmIntrinsics::_putByte:
180 case vmIntrinsics::_putShort:
181 case vmIntrinsics::_putChar:
182 case vmIntrinsics::_putInt:
183 case vmIntrinsics::_putLong:
184 case vmIntrinsics::_putFloat:
185 case vmIntrinsics::_putDouble:
186 case vmIntrinsics::_getObjectVolatile:
187 case vmIntrinsics::_getBooleanVolatile:
188 case vmIntrinsics::_getByteVolatile:
189 case vmIntrinsics::_getShortVolatile:
190 case vmIntrinsics::_getCharVolatile:
191 case vmIntrinsics::_getIntVolatile:
192 case vmIntrinsics::_getLongVolatile:
193 case vmIntrinsics::_getFloatVolatile:
194 case vmIntrinsics::_getDoubleVolatile:
195 case vmIntrinsics::_putObjectVolatile:
196 case vmIntrinsics::_putBooleanVolatile:
197 case vmIntrinsics::_putByteVolatile:
198 case vmIntrinsics::_putShortVolatile:
199 case vmIntrinsics::_putCharVolatile:
200 case vmIntrinsics::_putIntVolatile:
201 case vmIntrinsics::_putLongVolatile:
202 case vmIntrinsics::_putFloatVolatile:
203 case vmIntrinsics::_putDoubleVolatile:
204 case vmIntrinsics::_getShortUnaligned:
205 case vmIntrinsics::_getCharUnaligned:
206 case vmIntrinsics::_getIntUnaligned:
207 case vmIntrinsics::_getLongUnaligned:
208 case vmIntrinsics::_putShortUnaligned:
209 case vmIntrinsics::_putCharUnaligned:
210 case vmIntrinsics::_putIntUnaligned:
211 case vmIntrinsics::_putLongUnaligned:
212 case vmIntrinsics::_checkIndex:
213 case vmIntrinsics::_updateCRC32:
214 case vmIntrinsics::_updateBytesCRC32:
215 case vmIntrinsics::_updateByteBufferCRC32:
216 #if defined(SPARC) || defined(S390) || defined(PPC64)
217 case vmIntrinsics::_updateBytesCRC32C:
218 case vmIntrinsics::_updateDirectByteBufferCRC32C:
219 #endif
220 case vmIntrinsics::_vectorizedMismatch:
221 case vmIntrinsics::_compareAndSetInt:
222 case vmIntrinsics::_compareAndSetObject:
223 case vmIntrinsics::_getCharStringU:
224 case vmIntrinsics::_putCharStringU:
225 #ifdef TRACE_HAVE_INTRINSICS
226 case vmIntrinsics::_counterTime:
227 case vmIntrinsics::_getBufferWriter:
228 #if defined(_LP64) || !defined(TRACE_ID_CLASS_SHIFT)
229 case vmIntrinsics::_getClassId:
230 #endif
231 #endif
232 break;
233 default:
234 return false; // Intrinsics not on the previous list are not available.
235 }
236
237 return true;
238 }
239
240 void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci, DirectiveSet* directive) {
241 BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
242 assert(buffer_blob != NULL, "Must exist");
243 // invoke compilation
244 {
245 // We are nested here because we need for the destructor
246 // of Compilation to occur before we release the any
247 // competing compiler thread
248 ResourceMark rm;
249 Compilation c(this, env, method, entry_bci, buffer_blob, directive);
250 }
251 }
252
253
254 void Compiler::print_timers() {
255 Compilation::print_timers();
256 }