1 /*
2 * Copyright (c) 1999, 2022, 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 "runtime/interfaceSupport.inline.hpp"
41 #include "runtime/sharedRuntime.hpp"
42 #include "runtime/vm_version.hpp"
43 #include "sanitizers/leak.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 // Ignore leaked arena, it is used by ValueType and Interval during initialization.
55 LSAN_IGNORE_OBJECT(arena);
56 Runtime1::initialize(buffer_blob);
57 FrameMap::initialize();
58 // initialize data structures
59 ValueType::initialize(arena);
60 GraphBuilder::initialize();
61 // note: to use more than one instance of LinearScan at a time this function call has to
62 // be moved somewhere outside of this constructor:
63 Interval::initialize(arena);
64 }
65
66
67 void Compiler::initialize() {
68 // Buffer blob must be allocated per C1 compiler thread at startup
69 BufferBlob* buffer_blob = init_buffer_blob();
70
71 if (should_perform_init()) {
72 if (buffer_blob == NULL) {
73 // When we come here we are in state 'initializing'; entire C1 compilation
74 // can be shut down.
75 set_state(failed);
76 } else {
77 init_c1_runtime();
78 set_state(initialized);
79 }
80 }
81 }
82
83 int Compiler::code_buffer_size() {
84 return Compilation::desired_max_code_buffer_size() + Compilation::desired_max_constant_size();
85 }
86
87 BufferBlob* Compiler::init_buffer_blob() {
88 // Allocate buffer blob once at startup since allocation for each
89 // compilation seems to be too expensive (at least on Intel win32).
90 assert (CompilerThread::current()->get_buffer_blob() == NULL, "Should initialize only once");
91
92 // setup CodeBuffer. Preallocate a BufferBlob of size
93 // NMethodSizeLimit plus some extra space for constants.
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::_getAndSetReference:
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::_storeStoreFence:
149 case vmIntrinsics::_fullFence:
150 case vmIntrinsics::_floatToRawIntBits:
151 case vmIntrinsics::_intBitsToFloat:
152 case vmIntrinsics::_doubleToRawLongBits:
153 case vmIntrinsics::_longBitsToDouble:
154 case vmIntrinsics::_getClass:
155 case vmIntrinsics::_isInstance:
156 case vmIntrinsics::_isPrimitive:
157 case vmIntrinsics::_getModifiers:
158 case vmIntrinsics::_currentCarrierThread:
159 case vmIntrinsics::_currentThread:
160 case vmIntrinsics::_scopedValueCache:
161 case vmIntrinsics::_dabs:
162 case vmIntrinsics::_dsqrt:
163 case vmIntrinsics::_dsqrt_strict:
164 case vmIntrinsics::_dsin:
165 case vmIntrinsics::_dcos:
166 case vmIntrinsics::_dtan:
167 case vmIntrinsics::_dlog:
168 case vmIntrinsics::_dlog10:
169 case vmIntrinsics::_dexp:
170 case vmIntrinsics::_dpow:
171 case vmIntrinsics::_fmaD:
172 case vmIntrinsics::_fmaF:
173 case vmIntrinsics::_getReference:
174 case vmIntrinsics::_getBoolean:
175 case vmIntrinsics::_getByte:
176 case vmIntrinsics::_getShort:
177 case vmIntrinsics::_getChar:
178 case vmIntrinsics::_getInt:
179 case vmIntrinsics::_getLong:
180 case vmIntrinsics::_getFloat:
181 case vmIntrinsics::_getDouble:
182 case vmIntrinsics::_putReference:
183 case vmIntrinsics::_putBoolean:
184 case vmIntrinsics::_putByte:
185 case vmIntrinsics::_putShort:
186 case vmIntrinsics::_putChar:
187 case vmIntrinsics::_putInt:
188 case vmIntrinsics::_putLong:
189 case vmIntrinsics::_putFloat:
190 case vmIntrinsics::_putDouble:
191 case vmIntrinsics::_getReferenceVolatile:
192 case vmIntrinsics::_getBooleanVolatile:
193 case vmIntrinsics::_getByteVolatile:
194 case vmIntrinsics::_getShortVolatile:
195 case vmIntrinsics::_getCharVolatile:
196 case vmIntrinsics::_getIntVolatile:
197 case vmIntrinsics::_getLongVolatile:
198 case vmIntrinsics::_getFloatVolatile:
199 case vmIntrinsics::_getDoubleVolatile:
200 case vmIntrinsics::_putReferenceVolatile:
201 case vmIntrinsics::_putBooleanVolatile:
202 case vmIntrinsics::_putByteVolatile:
203 case vmIntrinsics::_putShortVolatile:
204 case vmIntrinsics::_putCharVolatile:
205 case vmIntrinsics::_putIntVolatile:
206 case vmIntrinsics::_putLongVolatile:
207 case vmIntrinsics::_putFloatVolatile:
208 case vmIntrinsics::_putDoubleVolatile:
209 case vmIntrinsics::_getShortUnaligned:
210 case vmIntrinsics::_getCharUnaligned:
211 case vmIntrinsics::_getIntUnaligned:
212 case vmIntrinsics::_getLongUnaligned:
213 case vmIntrinsics::_putShortUnaligned:
214 case vmIntrinsics::_putCharUnaligned:
215 case vmIntrinsics::_putIntUnaligned:
216 case vmIntrinsics::_putLongUnaligned:
217 case vmIntrinsics::_Preconditions_checkIndex:
218 case vmIntrinsics::_Preconditions_checkLongIndex:
219 case vmIntrinsics::_updateCRC32:
220 case vmIntrinsics::_updateBytesCRC32:
221 case vmIntrinsics::_updateByteBufferCRC32:
222 #if defined(S390) || defined(PPC64) || defined(AARCH64)
223 case vmIntrinsics::_updateBytesCRC32C:
224 case vmIntrinsics::_updateDirectByteBufferCRC32C:
225 #endif
226 case vmIntrinsics::_vectorizedMismatch:
227 case vmIntrinsics::_compareAndSetInt:
228 case vmIntrinsics::_compareAndSetReference:
229 case vmIntrinsics::_getCharStringU:
230 case vmIntrinsics::_putCharStringU:
231 #ifdef JFR_HAVE_INTRINSICS
232 case vmIntrinsics::_counterTime:
233 #endif
234 case vmIntrinsics::_getObjectSize:
235 break;
236 case vmIntrinsics::_blackhole:
237 break;
238 default:
239 return false; // Intrinsics not on the previous list are not available.
240 }
241
242 return true;
243 }
244
245 void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci, bool install_code, DirectiveSet* directive) {
246 BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
247 assert(buffer_blob != NULL, "Must exist");
248 // invoke compilation
249 {
250 // We are nested here because we need for the destructor
251 // of Compilation to occur before we release the any
252 // competing compiler thread
253 ResourceMark rm;
254 Compilation c(this, env, method, entry_bci, buffer_blob, install_code, directive);
255 }
256 }
257
258
259 void Compiler::print_timers() {
260 Compilation::print_timers();
261 }