1 /*
2 * Copyright (c) 1999, 2018, 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 "jfr/support/jfrIntrinsics.hpp"
37 #include "memory/allocation.hpp"
38 #include "memory/allocation.inline.hpp"
39 #include "memory/resourceArea.hpp"
40 #include "prims/nativeLookup.hpp"
41 #include "runtime/arguments.hpp"
42 #include "runtime/interfaceSupport.inline.hpp"
43 #include "runtime/sharedRuntime.hpp"
44 #include "utilities/bitMap.inline.hpp"
45 #include "utilities/macros.hpp"
46
47
48 Compiler::Compiler() : AbstractCompiler(compiler_c1) {
49 }
50
51 void Compiler::init_c1_runtime() {
52 BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
53 Arena* arena = new (mtCompiler) Arena(mtCompiler);
54 Runtime1::initialize(buffer_blob);
55 FrameMap::initialize();
56 // initialize data structures
57 ValueType::initialize(arena);
58 GraphBuilder::initialize();
59 // note: to use more than one instance of LinearScan at a time this function call has to
60 // be moved somewhere outside of this constructor:
61 Interval::initialize(arena);
62 }
63
64
65 void Compiler::initialize() {
66 // Buffer blob must be allocated per C1 compiler thread at startup
67 BufferBlob* buffer_blob = init_buffer_blob();
68
69 if (should_perform_init()) {
70 if (buffer_blob == NULL) {
71 // When we come here we are in state 'initializing'; entire C1 compilation
72 // can be shut down.
73 set_state(failed);
74 } else {
75 init_c1_runtime();
76 set_state(initialized);
77 }
78 }
79 }
80
81 int Compiler::code_buffer_size() {
82 assert(SegmentedCodeCache, "Should be only used with a segmented code cache");
83 return Compilation::desired_max_code_buffer_size() + Compilation::desired_max_constant_size();
84 }
85
86 BufferBlob* Compiler::init_buffer_blob() {
87 // Allocate buffer blob once at startup since allocation for each
88 // compilation seems to be too expensive (at least on Intel win32).
89 assert (CompilerThread::current()->get_buffer_blob() == NULL, "Should initialize only once");
90
91 // setup CodeBuffer. Preallocate a BufferBlob of size
92 // NMethodSizeLimit plus some extra space for constants.
93 int code_buffer_size = Compilation::desired_max_code_buffer_size() +
94 Compilation::desired_max_constant_size();
95
96 BufferBlob* buffer_blob = BufferBlob::create("C1 temporary CodeBuffer", code_buffer_size);
97 if (buffer_blob != NULL) {
98 CompilerThread::current()->set_buffer_blob(buffer_blob);
99 }
100
101 return buffer_blob;
102 }
103
104 bool Compiler::is_intrinsic_supported(const methodHandle& method) {
105 vmIntrinsics::ID id = method->intrinsic_id();
106 assert(id != vmIntrinsics::_none, "must be a VM intrinsic");
107
108 if (method->is_synchronized()) {
109 // C1 does not support intrinsification of synchronized methods.
110 return false;
111 }
112
113 switch (id) {
114 case vmIntrinsics::_compareAndSetLong:
115 if (!VM_Version::supports_cx8()) return false;
116 break;
117 case vmIntrinsics::_getAndAddInt:
118 if (!VM_Version::supports_atomic_getadd4()) return false;
119 break;
120 case vmIntrinsics::_getAndAddLong:
121 if (!VM_Version::supports_atomic_getadd8()) return false;
122 break;
123 case vmIntrinsics::_getAndSetInt:
124 if (!VM_Version::supports_atomic_getset4()) return false;
125 break;
126 case vmIntrinsics::_getAndSetLong:
127 if (!VM_Version::supports_atomic_getset8()) return false;
128 break;
129 case vmIntrinsics::_getAndSetObject:
130 #ifdef _LP64
131 if (!UseCompressedOops && !VM_Version::supports_atomic_getset8()) return false;
132 if (UseCompressedOops && !VM_Version::supports_atomic_getset4()) return false;
133 #else
134 if (!VM_Version::supports_atomic_getset4()) return false;
135 #endif
136 break;
137 case vmIntrinsics::_onSpinWait:
138 if (!VM_Version::supports_on_spin_wait()) return false;
139 break;
140 case vmIntrinsics::_arraycopy:
141 case vmIntrinsics::_currentTimeMillis:
142 case vmIntrinsics::_nanoTime:
143 case vmIntrinsics::_Reference_get:
144 // Use the intrinsic version of Reference.get() so that the value in
145 // the referent field can be registered by the G1 pre-barrier code.
146 // Also to prevent commoning reads from this field across safepoint
147 // since GC can change its value.
148 case vmIntrinsics::_loadFence:
149 case vmIntrinsics::_storeFence:
150 case vmIntrinsics::_fullFence:
151 case vmIntrinsics::_floatToRawIntBits:
152 case vmIntrinsics::_intBitsToFloat:
153 case vmIntrinsics::_doubleToRawLongBits:
154 case vmIntrinsics::_longBitsToDouble:
155 case vmIntrinsics::_getClass:
156 case vmIntrinsics::_isInstance:
157 case vmIntrinsics::_isPrimitive:
158 case vmIntrinsics::_currentThread:
159 case vmIntrinsics::_dabs:
160 case vmIntrinsics::_dsqrt:
161 case vmIntrinsics::_dsin:
162 case vmIntrinsics::_dcos:
163 case vmIntrinsics::_dtan:
164 case vmIntrinsics::_dlog:
165 case vmIntrinsics::_dlog10:
166 case vmIntrinsics::_dexp:
167 case vmIntrinsics::_dpow:
168 case vmIntrinsics::_fmaD:
169 case vmIntrinsics::_fmaF:
170 case vmIntrinsics::_getObject:
171 case vmIntrinsics::_getBoolean:
172 case vmIntrinsics::_getByte:
173 case vmIntrinsics::_getShort:
174 case vmIntrinsics::_getChar:
175 case vmIntrinsics::_getInt:
176 case vmIntrinsics::_getLong:
177 case vmIntrinsics::_getFloat:
178 case vmIntrinsics::_getDouble:
179 case vmIntrinsics::_putObject:
180 case vmIntrinsics::_putBoolean:
181 case vmIntrinsics::_putByte:
182 case vmIntrinsics::_putShort:
183 case vmIntrinsics::_putChar:
184 case vmIntrinsics::_putInt:
185 case vmIntrinsics::_putLong:
186 case vmIntrinsics::_putFloat:
187 case vmIntrinsics::_putDouble:
188 case vmIntrinsics::_getObjectVolatile:
189 case vmIntrinsics::_getBooleanVolatile:
190 case vmIntrinsics::_getByteVolatile:
191 case vmIntrinsics::_getShortVolatile:
192 case vmIntrinsics::_getCharVolatile:
193 case vmIntrinsics::_getIntVolatile:
194 case vmIntrinsics::_getLongVolatile:
195 case vmIntrinsics::_getFloatVolatile:
196 case vmIntrinsics::_getDoubleVolatile:
197 case vmIntrinsics::_putObjectVolatile:
198 case vmIntrinsics::_putBooleanVolatile:
199 case vmIntrinsics::_putByteVolatile:
200 case vmIntrinsics::_putShortVolatile:
201 case vmIntrinsics::_putCharVolatile:
202 case vmIntrinsics::_putIntVolatile:
203 case vmIntrinsics::_putLongVolatile:
204 case vmIntrinsics::_putFloatVolatile:
205 case vmIntrinsics::_putDoubleVolatile:
206 case vmIntrinsics::_getShortUnaligned:
207 case vmIntrinsics::_getCharUnaligned:
208 case vmIntrinsics::_getIntUnaligned:
209 case vmIntrinsics::_getLongUnaligned:
210 case vmIntrinsics::_putShortUnaligned:
211 case vmIntrinsics::_putCharUnaligned:
212 case vmIntrinsics::_putIntUnaligned:
213 case vmIntrinsics::_putLongUnaligned:
214 case vmIntrinsics::_checkIndex:
215 case vmIntrinsics::_updateCRC32:
216 case vmIntrinsics::_updateBytesCRC32:
217 case vmIntrinsics::_updateByteBufferCRC32:
218 #if defined(SPARC) || defined(S390) || defined(PPC64) || defined(AARCH64)
219 case vmIntrinsics::_updateBytesCRC32C:
220 case vmIntrinsics::_updateDirectByteBufferCRC32C:
221 #endif
222 case vmIntrinsics::_vectorizedMismatch:
223 case vmIntrinsics::_compareAndSetInt:
224 case vmIntrinsics::_compareAndSetObject:
225 case vmIntrinsics::_getCharStringU:
226 case vmIntrinsics::_putCharStringU:
227 #ifdef JFR_HAVE_INTRINSICS
228 case vmIntrinsics::_counterTime:
229 case vmIntrinsics::_getEventWriter:
230 #if defined(_LP64) || !defined(TRACE_ID_SHIFT)
231 case vmIntrinsics::_getClassId:
232 #endif
233 #endif
234 break;
235 default:
236 return false; // Intrinsics not on the previous list are not available.
237 }
238
239 return true;
240 }
241
242 void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci, DirectiveSet* directive) {
243 BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
244 assert(buffer_blob != NULL, "Must exist");
245 // invoke compilation
246 {
247 // We are nested here because we need for the destructor
248 // of Compilation to occur before we release the any
249 // competing compiler thread
250 ResourceMark rm;
251 Compilation c(this, env, method, entry_bci, buffer_blob, directive);
252 }
253 }
254
255
256 void Compiler::print_timers() {
257 Compilation::print_timers();
258 }