1 /* 2 * Copyright (c) 1999, 2023, 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 "compiler/compilerDirectives.hpp" 36 #include "interpreter/linkResolver.hpp" 37 #include "jfr/support/jfrIntrinsics.hpp" 38 #include "memory/allocation.hpp" 39 #include "memory/allocation.inline.hpp" 40 #include "memory/resourceArea.hpp" 41 #include "runtime/interfaceSupport.inline.hpp" 42 #include "runtime/sharedRuntime.hpp" 43 #include "runtime/vm_version.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 Runtime1::initialize(buffer_blob); 54 FrameMap::initialize(); 55 // initialize data structures 56 ValueType::initialize(); 57 GraphBuilder::initialize(); 58 // note: to use more than one instance of LinearScan at a time this function call has to 59 // be moved somewhere outside of this constructor: 60 Interval::initialize(); 61 } 62 63 64 void Compiler::initialize() { 65 // Buffer blob must be allocated per C1 compiler thread at startup 66 BufferBlob* buffer_blob = init_buffer_blob(); 67 68 if (should_perform_init()) { 69 if (buffer_blob == nullptr) { 70 // When we come here we are in state 'initializing'; entire C1 compilation 71 // can be shut down. 72 set_state(failed); 73 } else { 74 init_c1_runtime(); 75 set_state(initialized); 76 } 77 } 78 } 79 80 int Compiler::code_buffer_size() { 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() == nullptr, "Should initialize only once"); 88 89 // setup CodeBuffer. Preallocate a BufferBlob of size 90 // NMethodSizeLimit plus some extra space for constants. 91 BufferBlob* buffer_blob = BufferBlob::create("C1 temporary CodeBuffer", code_buffer_size()); 92 if (buffer_blob != nullptr) { 93 CompilerThread::current()->set_buffer_blob(buffer_blob); 94 } 95 96 return buffer_blob; 97 } 98 99 bool Compiler::is_intrinsic_supported(const methodHandle& method) { 100 vmIntrinsics::ID id = method->intrinsic_id(); 101 assert(id != vmIntrinsics::_none, "must be a VM intrinsic"); 102 103 if (method->is_synchronized()) { 104 // C1 does not support intrinsification of synchronized methods. 105 return false; 106 } 107 return Compiler::is_intrinsic_supported(id); 108 } 109 110 bool Compiler::is_intrinsic_supported(vmIntrinsics::ID id) { 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::_floatToFloat16: 139 case vmIntrinsics::_float16ToFloat: 140 if (!VM_Version::supports_float16()) return false; 141 break; 142 case vmIntrinsics::_arraycopy: 143 case vmIntrinsics::_currentTimeMillis: 144 case vmIntrinsics::_nanoTime: 145 case vmIntrinsics::_Reference_get: 146 // Use the intrinsic version of Reference.get() so that the value in 147 // the referent field can be registered by the G1 pre-barrier code. 148 // Also to prevent commoning reads from this field across safepoint 149 // since GC can change its value. 150 case vmIntrinsics::_loadFence: 151 case vmIntrinsics::_storeFence: 152 case vmIntrinsics::_storeStoreFence: 153 case vmIntrinsics::_fullFence: 154 case vmIntrinsics::_floatToRawIntBits: 155 case vmIntrinsics::_intBitsToFloat: 156 case vmIntrinsics::_doubleToRawLongBits: 157 case vmIntrinsics::_longBitsToDouble: 158 case vmIntrinsics::_getClass: 159 case vmIntrinsics::_isInstance: 160 case vmIntrinsics::_isPrimitive: 161 case vmIntrinsics::_getModifiers: 162 case vmIntrinsics::_currentCarrierThread: 163 case vmIntrinsics::_currentThread: 164 case vmIntrinsics::_scopedValueCache: 165 case vmIntrinsics::_dabs: 166 case vmIntrinsics::_dsqrt: 167 case vmIntrinsics::_dsqrt_strict: 168 case vmIntrinsics::_dsin: 169 case vmIntrinsics::_dcos: 170 case vmIntrinsics::_dtan: 171 case vmIntrinsics::_dlog: 172 case vmIntrinsics::_dlog10: 173 case vmIntrinsics::_dexp: 174 case vmIntrinsics::_dpow: 175 case vmIntrinsics::_fmaD: 176 case vmIntrinsics::_fmaF: 177 case vmIntrinsics::_getReference: 178 case vmIntrinsics::_getBoolean: 179 case vmIntrinsics::_getByte: 180 case vmIntrinsics::_getShort: 181 case vmIntrinsics::_getChar: 182 case vmIntrinsics::_getInt: 183 case vmIntrinsics::_getLong: 184 case vmIntrinsics::_getFloat: 185 case vmIntrinsics::_getDouble: 186 case vmIntrinsics::_putReference: 187 case vmIntrinsics::_putBoolean: 188 case vmIntrinsics::_putByte: 189 case vmIntrinsics::_putShort: 190 case vmIntrinsics::_putChar: 191 case vmIntrinsics::_putInt: 192 case vmIntrinsics::_putLong: 193 case vmIntrinsics::_putFloat: 194 case vmIntrinsics::_putDouble: 195 case vmIntrinsics::_getReferenceVolatile: 196 case vmIntrinsics::_getBooleanVolatile: 197 case vmIntrinsics::_getByteVolatile: 198 case vmIntrinsics::_getShortVolatile: 199 case vmIntrinsics::_getCharVolatile: 200 case vmIntrinsics::_getIntVolatile: 201 case vmIntrinsics::_getLongVolatile: 202 case vmIntrinsics::_getFloatVolatile: 203 case vmIntrinsics::_getDoubleVolatile: 204 case vmIntrinsics::_putReferenceVolatile: 205 case vmIntrinsics::_putBooleanVolatile: 206 case vmIntrinsics::_putByteVolatile: 207 case vmIntrinsics::_putShortVolatile: 208 case vmIntrinsics::_putCharVolatile: 209 case vmIntrinsics::_putIntVolatile: 210 case vmIntrinsics::_putLongVolatile: 211 case vmIntrinsics::_putFloatVolatile: 212 case vmIntrinsics::_putDoubleVolatile: 213 case vmIntrinsics::_getShortUnaligned: 214 case vmIntrinsics::_getCharUnaligned: 215 case vmIntrinsics::_getIntUnaligned: 216 case vmIntrinsics::_getLongUnaligned: 217 case vmIntrinsics::_putShortUnaligned: 218 case vmIntrinsics::_putCharUnaligned: 219 case vmIntrinsics::_putIntUnaligned: 220 case vmIntrinsics::_putLongUnaligned: 221 case vmIntrinsics::_Preconditions_checkIndex: 222 case vmIntrinsics::_Preconditions_checkLongIndex: 223 case vmIntrinsics::_updateCRC32: 224 case vmIntrinsics::_updateBytesCRC32: 225 case vmIntrinsics::_updateByteBufferCRC32: 226 #if defined(S390) || defined(PPC64) || defined(AARCH64) 227 case vmIntrinsics::_updateBytesCRC32C: 228 case vmIntrinsics::_updateDirectByteBufferCRC32C: 229 #endif 230 case vmIntrinsics::_vectorizedMismatch: 231 case vmIntrinsics::_compareAndSetInt: 232 case vmIntrinsics::_compareAndSetReference: 233 case vmIntrinsics::_getCharStringU: 234 case vmIntrinsics::_putCharStringU: 235 #ifdef JFR_HAVE_INTRINSICS 236 case vmIntrinsics::_counterTime: 237 #endif 238 case vmIntrinsics::_getObjectSize: 239 case vmIntrinsics::_shipilev_magic_sizeOf: 240 case vmIntrinsics::_shipilev_magic_addressOf: 241 break; 242 case vmIntrinsics::_blackhole: 243 break; 244 default: 245 return false; // Intrinsics not on the previous list are not available. 246 } 247 248 return true; 249 } 250 251 void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci, bool install_code, DirectiveSet* directive) { 252 BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob(); 253 assert(buffer_blob != nullptr, "Must exist"); 254 // invoke compilation 255 { 256 // We are nested here because we need for the destructor 257 // of Compilation to occur before we release the any 258 // competing compiler thread 259 ResourceMark rm; 260 Compilation c(this, env, method, entry_bci, buffer_blob, install_code, directive); 261 } 262 } 263 264 265 void Compiler::print_timers() { 266 Compilation::print_timers(); 267 }