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 return Compilation::desired_max_code_buffer_size() + Compilation::desired_max_constant_size(); 83 } 84 85 BufferBlob* Compiler::init_buffer_blob() { 86 // Allocate buffer blob once at startup since allocation for each 87 // compilation seems to be too expensive (at least on Intel win32). 88 assert (CompilerThread::current()->get_buffer_blob() == NULL, "Should initialize only once"); 89 90 // setup CodeBuffer. Preallocate a BufferBlob of size 91 // NMethodSizeLimit plus some extra space for constants. 92 BufferBlob* buffer_blob = BufferBlob::create("C1 temporary CodeBuffer", code_buffer_size()); 93 if (buffer_blob != NULL) { 94 CompilerThread::current()->set_buffer_blob(buffer_blob); 95 } 96 97 return buffer_blob; 98 } 99 100 bool Compiler::is_intrinsic_supported(const methodHandle& method) { 101 vmIntrinsics::ID id = method->intrinsic_id(); 102 assert(id != vmIntrinsics::_none, "must be a VM intrinsic"); 103 104 if (method->is_synchronized()) { 105 // C1 does not support intrinsification of synchronized methods. 106 return false; 107 } 108 109 switch (id) { 110 case vmIntrinsics::_compareAndSetLong: 111 if (!VM_Version::supports_cx8()) return false; 112 break; 113 case vmIntrinsics::_getAndAddInt: 114 if (!VM_Version::supports_atomic_getadd4()) return false; 115 break; 116 case vmIntrinsics::_getAndAddLong: 117 if (!VM_Version::supports_atomic_getadd8()) return false; 118 break; 119 case vmIntrinsics::_getAndSetInt: 120 if (!VM_Version::supports_atomic_getset4()) return false; 121 break; 122 case vmIntrinsics::_getAndSetLong: 123 if (!VM_Version::supports_atomic_getset8()) return false; 124 break; 125 case vmIntrinsics::_getAndSetReference: 126 #ifdef _LP64 127 if (!UseCompressedOops && !VM_Version::supports_atomic_getset8()) return false; 128 if (UseCompressedOops && !VM_Version::supports_atomic_getset4()) return false; 129 #else 130 if (!VM_Version::supports_atomic_getset4()) return false; 131 #endif 132 break; 133 case vmIntrinsics::_onSpinWait: 134 if (!VM_Version::supports_on_spin_wait()) return false; 135 break; 136 case vmIntrinsics::_arraycopy: 137 case vmIntrinsics::_currentTimeMillis: 138 case vmIntrinsics::_nanoTime: 139 case vmIntrinsics::_Reference_get: 140 // Use the intrinsic version of Reference.get() so that the value in 141 // the referent field can be registered by the G1 pre-barrier code. 142 // Also to prevent commoning reads from this field across safepoint 143 // since GC can change its value. 144 case vmIntrinsics::_loadFence: 145 case vmIntrinsics::_storeFence: 146 case vmIntrinsics::_fullFence: 147 case vmIntrinsics::_floatToRawIntBits: 148 case vmIntrinsics::_intBitsToFloat: 149 case vmIntrinsics::_doubleToRawLongBits: 150 case vmIntrinsics::_longBitsToDouble: 151 case vmIntrinsics::_getClass: 152 case vmIntrinsics::_isInstance: 153 case vmIntrinsics::_isPrimitive: 154 case vmIntrinsics::_currentThread: 155 case vmIntrinsics::_dabs: 156 case vmIntrinsics::_dsqrt: 157 case vmIntrinsics::_dsin: 158 case vmIntrinsics::_dcos: 159 case vmIntrinsics::_dtan: 160 case vmIntrinsics::_dlog: 161 case vmIntrinsics::_dlog10: 162 case vmIntrinsics::_dexp: 163 case vmIntrinsics::_dpow: 164 case vmIntrinsics::_fmaD: 165 case vmIntrinsics::_fmaF: 166 case vmIntrinsics::_getReference: 167 case vmIntrinsics::_getBoolean: 168 case vmIntrinsics::_getByte: 169 case vmIntrinsics::_getShort: 170 case vmIntrinsics::_getChar: 171 case vmIntrinsics::_getInt: 172 case vmIntrinsics::_getLong: 173 case vmIntrinsics::_getFloat: 174 case vmIntrinsics::_getDouble: 175 case vmIntrinsics::_putReference: 176 case vmIntrinsics::_putBoolean: 177 case vmIntrinsics::_putByte: 178 case vmIntrinsics::_putShort: 179 case vmIntrinsics::_putChar: 180 case vmIntrinsics::_putInt: 181 case vmIntrinsics::_putLong: 182 case vmIntrinsics::_putFloat: 183 case vmIntrinsics::_putDouble: 184 case vmIntrinsics::_getReferenceVolatile: 185 case vmIntrinsics::_getBooleanVolatile: 186 case vmIntrinsics::_getByteVolatile: 187 case vmIntrinsics::_getShortVolatile: 188 case vmIntrinsics::_getCharVolatile: 189 case vmIntrinsics::_getIntVolatile: 190 case vmIntrinsics::_getLongVolatile: 191 case vmIntrinsics::_getFloatVolatile: 192 case vmIntrinsics::_getDoubleVolatile: 193 case vmIntrinsics::_putReferenceVolatile: 194 case vmIntrinsics::_putBooleanVolatile: 195 case vmIntrinsics::_putByteVolatile: 196 case vmIntrinsics::_putShortVolatile: 197 case vmIntrinsics::_putCharVolatile: 198 case vmIntrinsics::_putIntVolatile: 199 case vmIntrinsics::_putLongVolatile: 200 case vmIntrinsics::_putFloatVolatile: 201 case vmIntrinsics::_putDoubleVolatile: 202 case vmIntrinsics::_getShortUnaligned: 203 case vmIntrinsics::_getCharUnaligned: 204 case vmIntrinsics::_getIntUnaligned: 205 case vmIntrinsics::_getLongUnaligned: 206 case vmIntrinsics::_putShortUnaligned: 207 case vmIntrinsics::_putCharUnaligned: 208 case vmIntrinsics::_putIntUnaligned: 209 case vmIntrinsics::_putLongUnaligned: 210 case vmIntrinsics::_checkIndex: 211 case vmIntrinsics::_updateCRC32: 212 case vmIntrinsics::_updateBytesCRC32: 213 case vmIntrinsics::_updateByteBufferCRC32: 214 #if defined(SPARC) || defined(S390) || defined(PPC64) || defined(AARCH64) 215 case vmIntrinsics::_updateBytesCRC32C: 216 case vmIntrinsics::_updateDirectByteBufferCRC32C: 217 #endif 218 case vmIntrinsics::_vectorizedMismatch: 219 case vmIntrinsics::_compareAndSetInt: 220 case vmIntrinsics::_compareAndSetReference: 221 case vmIntrinsics::_getCharStringU: 222 case vmIntrinsics::_putCharStringU: 223 #ifdef JFR_HAVE_INTRINSICS 224 case vmIntrinsics::_counterTime: 225 case vmIntrinsics::_getEventWriter: 226 #if defined(_LP64) || !defined(TRACE_ID_SHIFT) 227 case vmIntrinsics::_getClassId: 228 #endif 229 #endif 230 break; 231 default: 232 return false; // Intrinsics not on the previous list are not available. 233 } 234 235 return true; 236 } 237 238 void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci, DirectiveSet* directive) { 239 BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob(); 240 assert(buffer_blob != NULL, "Must exist"); 241 // invoke compilation 242 { 243 // We are nested here because we need for the destructor 244 // of Compilation to occur before we release the any 245 // competing compiler thread 246 ResourceMark rm; 247 Compilation c(this, env, method, entry_bci, buffer_blob, directive); 248 } 249 } 250 251 252 void Compiler::print_timers() { 253 Compilation::print_timers(); 254 }