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