Mercurial > hg > truffle
annotate src/share/vm/shark/sharkCompiler.cpp @ 7154:5d0bb7d52783
changes to support Graal co-existing with the other HotSpot compiler(s) and being used for explicit compilation requests and code installation via the Graal API
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Wed, 12 Dec 2012 21:36:40 +0100 |
| parents | e863062e521d |
| children | 291ffc492eb6 |
| rev | line source |
|---|---|
| 1692 | 1 /* |
| 1972 | 2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
| 2447 | 3 * Copyright 2008, 2009, 2010, 2011 Red Hat, Inc. |
| 1692 | 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 5 * | |
| 6 * This code is free software; you can redistribute it and/or modify it | |
| 7 * under the terms of the GNU General Public License version 2 only, as | |
| 8 * published by the Free Software Foundation. | |
| 9 * | |
| 10 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 13 * version 2 for more details (a copy is included in the LICENSE file that | |
| 14 * accompanied this code). | |
| 15 * | |
| 16 * You should have received a copy of the GNU General Public License version | |
| 17 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 19 * | |
| 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 21 * or visit www.oracle.com if you need additional information or have any | |
| 22 * questions. | |
| 23 * | |
| 24 */ | |
| 25 | |
| 1972 | 26 #include "precompiled.hpp" |
| 27 #include "ci/ciEnv.hpp" | |
| 28 #include "ci/ciMethod.hpp" | |
| 29 #include "code/debugInfoRec.hpp" | |
| 30 #include "code/dependencies.hpp" | |
| 31 #include "code/exceptionHandlerTable.hpp" | |
| 32 #include "code/oopRecorder.hpp" | |
| 33 #include "compiler/abstractCompiler.hpp" | |
| 34 #include "compiler/oopMap.hpp" | |
| 35 #include "shark/llvmHeaders.hpp" | |
| 36 #include "shark/sharkBuilder.hpp" | |
| 37 #include "shark/sharkCodeBuffer.hpp" | |
| 38 #include "shark/sharkCompiler.hpp" | |
| 39 #include "shark/sharkContext.hpp" | |
| 40 #include "shark/sharkEntry.hpp" | |
| 41 #include "shark/sharkFunction.hpp" | |
| 42 #include "shark/sharkMemoryManager.hpp" | |
| 43 #include "shark/sharkNativeWrapper.hpp" | |
| 44 #include "shark/shark_globals.hpp" | |
| 45 #include "utilities/debug.hpp" | |
| 1692 | 46 |
| 47 #include <fnmatch.h> | |
| 48 | |
| 49 using namespace llvm; | |
| 50 | |
| 51 #if SHARK_LLVM_VERSION >= 27 | |
| 52 namespace { | |
| 53 cl::opt<std::string> | |
| 54 MCPU("mcpu"); | |
| 55 | |
| 56 cl::list<std::string> | |
| 57 MAttrs("mattr", | |
| 58 cl::CommaSeparated); | |
| 59 } | |
| 60 #endif | |
| 61 | |
| 62 SharkCompiler::SharkCompiler() | |
|
7154
5d0bb7d52783
changes to support Graal co-existing with the other HotSpot compiler(s) and being used for explicit compilation requests and code installation via the Graal API
Doug Simon <doug.simon@oracle.com>
parents:
2447
diff
changeset
|
63 : AbstractCompiler(shark) { |
| 1692 | 64 // Create the lock to protect the memory manager and execution engine |
| 65 _execution_engine_lock = new Monitor(Mutex::leaf, "SharkExecutionEngineLock"); | |
| 66 MutexLocker locker(execution_engine_lock()); | |
| 67 | |
| 68 // Make LLVM safe for multithreading | |
| 69 if (!llvm_start_multithreaded()) | |
| 70 fatal("llvm_start_multithreaded() failed"); | |
| 71 | |
| 72 // Initialize the native target | |
| 73 InitializeNativeTarget(); | |
| 74 | |
| 75 // Create the two contexts which we'll use | |
| 76 _normal_context = new SharkContext("normal"); | |
| 77 _native_context = new SharkContext("native"); | |
| 78 | |
| 79 // Create the memory manager | |
| 80 _memory_manager = new SharkMemoryManager(); | |
| 81 | |
| 82 #if SHARK_LLVM_VERSION >= 27 | |
| 83 // Finetune LLVM for the current host CPU. | |
| 84 StringMap<bool> Features; | |
| 85 bool gotCpuFeatures = llvm::sys::getHostCPUFeatures(Features); | |
| 86 std::string cpu("-mcpu=" + llvm::sys::getHostCPUName()); | |
| 87 | |
| 88 std::vector<const char*> args; | |
| 89 args.push_back(""); // program name | |
| 90 args.push_back(cpu.c_str()); | |
| 91 | |
| 92 std::string mattr("-mattr="); | |
| 93 if(gotCpuFeatures){ | |
| 94 for(StringMap<bool>::iterator I = Features.begin(), | |
| 95 E = Features.end(); I != E; ++I){ | |
| 96 if(I->second){ | |
| 97 std::string attr(I->first()); | |
| 98 mattr+="+"+attr+","; | |
| 99 } | |
| 100 } | |
| 101 args.push_back(mattr.c_str()); | |
| 102 } | |
| 103 | |
| 104 args.push_back(0); // terminator | |
| 105 cl::ParseCommandLineOptions(args.size() - 1, (char **) &args[0]); | |
| 106 | |
| 107 // Create the JIT | |
| 108 std::string ErrorMsg; | |
| 109 | |
| 110 EngineBuilder builder(_normal_context->module()); | |
| 111 builder.setMCPU(MCPU); | |
| 112 builder.setMAttrs(MAttrs); | |
| 113 builder.setJITMemoryManager(memory_manager()); | |
| 114 builder.setEngineKind(EngineKind::JIT); | |
| 115 builder.setErrorStr(&ErrorMsg); | |
| 116 _execution_engine = builder.create(); | |
| 117 | |
| 118 if (!execution_engine()) { | |
| 119 if (!ErrorMsg.empty()) | |
| 120 printf("Error while creating Shark JIT: %s\n",ErrorMsg.c_str()); | |
| 121 else | |
| 122 printf("Unknown error while creating Shark JIT\n"); | |
| 123 exit(1); | |
| 124 } | |
| 125 | |
| 126 execution_engine()->addModule( | |
| 127 _native_context->module()); | |
| 128 #else | |
| 129 _execution_engine = ExecutionEngine::createJIT( | |
| 130 _normal_context->module_provider(), | |
| 131 NULL, memory_manager(), CodeGenOpt::Default); | |
| 132 execution_engine()->addModuleProvider( | |
| 133 _native_context->module_provider()); | |
| 134 #endif | |
| 135 | |
| 136 // All done | |
| 137 mark_initialized(); | |
| 138 } | |
| 139 | |
| 140 void SharkCompiler::initialize() { | |
| 141 ShouldNotCallThis(); | |
| 142 } | |
| 143 | |
| 144 void SharkCompiler::compile_method(ciEnv* env, | |
| 145 ciMethod* target, | |
| 146 int entry_bci) { | |
| 147 assert(is_initialized(), "should be"); | |
| 148 ResourceMark rm; | |
| 149 const char *name = methodname( | |
| 150 target->holder()->name()->as_utf8(), target->name()->as_utf8()); | |
| 151 | |
| 152 // Do the typeflow analysis | |
| 153 ciTypeFlow *flow; | |
| 154 if (entry_bci == InvocationEntryBci) | |
| 155 flow = target->get_flow_analysis(); | |
| 156 else | |
| 157 flow = target->get_osr_flow_analysis(entry_bci); | |
| 158 if (flow->failing()) | |
| 159 return; | |
| 160 if (SharkPrintTypeflowOf != NULL) { | |
| 161 if (!fnmatch(SharkPrintTypeflowOf, name, 0)) | |
| 162 flow->print_on(tty); | |
| 163 } | |
| 164 | |
| 165 // Create the recorders | |
| 166 Arena arena; | |
| 167 env->set_oop_recorder(new OopRecorder(&arena)); | |
| 168 OopMapSet oopmaps; | |
| 169 env->set_debug_info(new DebugInformationRecorder(env->oop_recorder())); | |
| 170 env->debug_info()->set_oopmaps(&oopmaps); | |
| 171 env->set_dependencies(new Dependencies(env)); | |
| 172 | |
| 173 // Create the code buffer and builder | |
| 174 CodeBuffer hscb("Shark", 256 * K, 64 * K); | |
| 175 hscb.initialize_oop_recorder(env->oop_recorder()); | |
| 176 MacroAssembler *masm = new MacroAssembler(&hscb); | |
| 177 SharkCodeBuffer cb(masm); | |
| 178 SharkBuilder builder(&cb); | |
| 179 | |
| 180 // Emit the entry point | |
| 181 SharkEntry *entry = (SharkEntry *) cb.malloc(sizeof(SharkEntry)); | |
| 182 | |
| 183 // Build the LLVM IR for the method | |
| 184 Function *function = SharkFunction::build(env, &builder, flow, name); | |
| 185 | |
| 186 // Generate native code. It's unpleasant that we have to drop into | |
| 187 // the VM to do this -- it blocks safepoints -- but I can't see any | |
| 188 // other way to handle the locking. | |
| 189 { | |
| 190 ThreadInVMfromNative tiv(JavaThread::current()); | |
| 191 generate_native_code(entry, function, name); | |
| 192 } | |
| 193 | |
| 194 // Install the method into the VM | |
| 195 CodeOffsets offsets; | |
| 196 offsets.set_value(CodeOffsets::Deopt, 0); | |
| 197 offsets.set_value(CodeOffsets::Exceptions, 0); | |
| 198 offsets.set_value(CodeOffsets::Verified_Entry, | |
| 199 target->is_static() ? 0 : wordSize); | |
| 200 | |
| 201 ExceptionHandlerTable handler_table; | |
| 202 ImplicitExceptionTable inc_table; | |
| 203 | |
| 204 env->register_method(target, | |
| 205 entry_bci, | |
| 206 &offsets, | |
| 207 0, | |
| 208 &hscb, | |
| 209 0, | |
| 210 &oopmaps, | |
| 211 &handler_table, | |
| 212 &inc_table, | |
| 213 this, | |
| 214 env->comp_level(), | |
| 215 false, | |
| 216 false); | |
| 217 } | |
| 218 | |
| 219 nmethod* SharkCompiler::generate_native_wrapper(MacroAssembler* masm, | |
| 220 methodHandle target, | |
| 2447 | 221 int compile_id, |
| 1692 | 222 BasicType* arg_types, |
| 223 BasicType return_type) { | |
| 224 assert(is_initialized(), "should be"); | |
| 225 ResourceMark rm; | |
| 226 const char *name = methodname( | |
| 227 target->klass_name()->as_utf8(), target->name()->as_utf8()); | |
| 228 | |
| 229 // Create the code buffer and builder | |
| 230 SharkCodeBuffer cb(masm); | |
| 231 SharkBuilder builder(&cb); | |
| 232 | |
| 233 // Emit the entry point | |
| 234 SharkEntry *entry = (SharkEntry *) cb.malloc(sizeof(SharkEntry)); | |
| 235 | |
| 236 // Build the LLVM IR for the method | |
| 237 SharkNativeWrapper *wrapper = SharkNativeWrapper::build( | |
| 238 &builder, target, name, arg_types, return_type); | |
| 239 | |
| 240 // Generate native code | |
| 241 generate_native_code(entry, wrapper->function(), name); | |
| 242 | |
| 243 // Return the nmethod for installation in the VM | |
| 244 return nmethod::new_native_nmethod(target, | |
| 2447 | 245 compile_id, |
| 1692 | 246 masm->code(), |
| 247 0, | |
| 248 0, | |
| 249 wrapper->frame_size(), | |
| 250 wrapper->receiver_offset(), | |
| 251 wrapper->lock_offset(), | |
| 252 wrapper->oop_maps()); | |
| 253 } | |
| 254 | |
| 255 void SharkCompiler::generate_native_code(SharkEntry* entry, | |
| 256 Function* function, | |
| 257 const char* name) { | |
| 258 // Print the LLVM bitcode, if requested | |
| 259 if (SharkPrintBitcodeOf != NULL) { | |
| 260 if (!fnmatch(SharkPrintBitcodeOf, name, 0)) | |
| 261 function->dump(); | |
| 262 } | |
| 263 | |
| 264 // Compile to native code | |
| 265 address code = NULL; | |
| 266 context()->add_function(function); | |
| 267 { | |
| 268 MutexLocker locker(execution_engine_lock()); | |
| 269 free_queued_methods(); | |
| 270 | |
| 271 if (SharkPrintAsmOf != NULL) { | |
| 272 #if SHARK_LLVM_VERSION >= 27 | |
| 273 #ifndef NDEBUG | |
| 274 if (!fnmatch(SharkPrintAsmOf, name, 0)) { | |
| 275 llvm::SetCurrentDebugType(X86_ONLY("x86-emitter") NOT_X86("jit")); | |
| 276 llvm::DebugFlag = true; | |
| 277 } | |
| 278 else { | |
| 279 llvm::SetCurrentDebugType(""); | |
| 280 llvm::DebugFlag = false; | |
| 281 } | |
| 282 #endif // !NDEBUG | |
| 283 #else | |
| 284 // NB you need to patch LLVM with http://tinyurl.com/yf3baln for this | |
| 285 std::vector<const char*> args; | |
| 286 args.push_back(""); // program name | |
| 287 if (!fnmatch(SharkPrintAsmOf, name, 0)) | |
| 288 args.push_back("-debug-only=x86-emitter"); | |
| 289 else | |
| 290 args.push_back("-debug-only=none"); | |
| 291 args.push_back(0); // terminator | |
| 292 cl::ParseCommandLineOptions(args.size() - 1, (char **) &args[0]); | |
| 293 #endif // SHARK_LLVM_VERSION | |
| 294 } | |
| 295 memory_manager()->set_entry_for_function(function, entry); | |
| 296 code = (address) execution_engine()->getPointerToFunction(function); | |
| 297 } | |
| 298 entry->set_entry_point(code); | |
| 299 entry->set_function(function); | |
| 300 entry->set_context(context()); | |
| 301 address code_start = entry->code_start(); | |
| 302 address code_limit = entry->code_limit(); | |
| 303 | |
| 304 // Register generated code for profiling, etc | |
| 305 if (JvmtiExport::should_post_dynamic_code_generated()) | |
| 306 JvmtiExport::post_dynamic_code_generated(name, code_start, code_limit); | |
| 307 | |
| 308 // Print debug information, if requested | |
| 309 if (SharkTraceInstalls) { | |
| 310 tty->print_cr( | |
| 311 " [%p-%p): %s (%d bytes code)", | |
| 312 code_start, code_limit, name, code_limit - code_start); | |
| 313 } | |
| 314 } | |
| 315 | |
| 316 void SharkCompiler::free_compiled_method(address code) { | |
| 317 // This method may only be called when the VM is at a safepoint. | |
| 318 // All _thread_in_vm threads will be waiting for the safepoint to | |
| 319 // finish with the exception of the VM thread, so we can consider | |
| 320 // ourself the owner of the execution engine lock even though we | |
| 321 // can't actually acquire it at this time. | |
| 322 assert(Thread::current()->is_VM_thread(), "must be called by VM thread"); | |
| 323 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); | |
| 324 | |
| 325 SharkEntry *entry = (SharkEntry *) code; | |
| 326 entry->context()->push_to_free_queue(entry->function()); | |
| 327 } | |
| 328 | |
| 329 void SharkCompiler::free_queued_methods() { | |
| 330 // The free queue is protected by the execution engine lock | |
| 331 assert(execution_engine_lock()->owned_by_self(), "should be"); | |
| 332 | |
| 333 while (true) { | |
| 334 Function *function = context()->pop_from_free_queue(); | |
| 335 if (function == NULL) | |
| 336 break; | |
| 337 | |
| 338 execution_engine()->freeMachineCodeForFunction(function); | |
| 339 function->eraseFromParent(); | |
| 340 } | |
| 341 } | |
| 342 | |
| 343 const char* SharkCompiler::methodname(const char* klass, const char* method) { | |
| 344 char *buf = NEW_RESOURCE_ARRAY(char, strlen(klass) + 2 + strlen(method) + 1); | |
| 345 | |
| 346 char *dst = buf; | |
| 347 for (const char *c = klass; *c; c++) { | |
| 348 if (*c == '/') | |
| 349 *(dst++) = '.'; | |
| 350 else | |
| 351 *(dst++) = *c; | |
| 352 } | |
| 353 *(dst++) = ':'; | |
| 354 *(dst++) = ':'; | |
| 355 for (const char *c = method; *c; c++) { | |
| 356 *(dst++) = *c; | |
| 357 } | |
| 358 *(dst++) = '\0'; | |
| 359 return buf; | |
| 360 } |