Mercurial > hg > truffle
annotate src/share/vm/shark/sharkCompiler.cpp @ 7212:291ffc492eb6
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Fri, 14 Dec 2012 14:35:13 +0100 |
| parents | 5d0bb7d52783 2cd5e15048e6 |
| children | 3ac7d10a6572 |
| 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 namespace { | |
| 52 cl::opt<std::string> | |
| 53 MCPU("mcpu"); | |
| 54 | |
| 55 cl::list<std::string> | |
| 56 MAttrs("mattr", | |
| 57 cl::CommaSeparated); | |
| 58 } | |
| 59 | |
| 60 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
|
61 : AbstractCompiler(shark) { |
| 1692 | 62 // Create the lock to protect the memory manager and execution engine |
| 63 _execution_engine_lock = new Monitor(Mutex::leaf, "SharkExecutionEngineLock"); | |
| 64 MutexLocker locker(execution_engine_lock()); | |
| 65 | |
| 66 // Make LLVM safe for multithreading | |
| 67 if (!llvm_start_multithreaded()) | |
| 68 fatal("llvm_start_multithreaded() failed"); | |
| 69 | |
| 70 // Initialize the native target | |
| 71 InitializeNativeTarget(); | |
| 72 | |
| 7195 | 73 // MCJIT require a native AsmPrinter |
| 74 InitializeNativeTargetAsmPrinter(); | |
| 75 | |
| 1692 | 76 // Create the two contexts which we'll use |
| 77 _normal_context = new SharkContext("normal"); | |
| 78 _native_context = new SharkContext("native"); | |
| 79 | |
| 80 // Create the memory manager | |
| 81 _memory_manager = new SharkMemoryManager(); | |
| 82 | |
| 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); | |
| 7195 | 116 if (! fnmatch(SharkOptimizationLevel, "None", 0)) { |
| 117 tty->print_cr("Shark optimization level set to: None"); | |
| 118 builder.setOptLevel(llvm::CodeGenOpt::None); | |
| 119 } else if (! fnmatch(SharkOptimizationLevel, "Less", 0)) { | |
| 120 tty->print_cr("Shark optimization level set to: Less"); | |
| 121 builder.setOptLevel(llvm::CodeGenOpt::Less); | |
| 122 } else if (! fnmatch(SharkOptimizationLevel, "Aggressive", 0)) { | |
| 123 tty->print_cr("Shark optimization level set to: Aggressive"); | |
| 124 builder.setOptLevel(llvm::CodeGenOpt::Aggressive); | |
| 125 } // else Default is selected by, well, default :-) | |
| 1692 | 126 _execution_engine = builder.create(); |
| 127 | |
| 128 if (!execution_engine()) { | |
| 129 if (!ErrorMsg.empty()) | |
| 130 printf("Error while creating Shark JIT: %s\n",ErrorMsg.c_str()); | |
| 131 else | |
| 132 printf("Unknown error while creating Shark JIT\n"); | |
| 133 exit(1); | |
| 134 } | |
| 135 | |
| 136 execution_engine()->addModule( | |
| 137 _native_context->module()); | |
| 138 | |
| 139 // All done | |
| 140 mark_initialized(); | |
| 141 } | |
| 142 | |
| 143 void SharkCompiler::initialize() { | |
| 144 ShouldNotCallThis(); | |
| 145 } | |
| 146 | |
| 147 void SharkCompiler::compile_method(ciEnv* env, | |
| 148 ciMethod* target, | |
| 149 int entry_bci) { | |
| 150 assert(is_initialized(), "should be"); | |
| 151 ResourceMark rm; | |
| 152 const char *name = methodname( | |
| 153 target->holder()->name()->as_utf8(), target->name()->as_utf8()); | |
| 154 | |
| 155 // Do the typeflow analysis | |
| 156 ciTypeFlow *flow; | |
| 157 if (entry_bci == InvocationEntryBci) | |
| 158 flow = target->get_flow_analysis(); | |
| 159 else | |
| 160 flow = target->get_osr_flow_analysis(entry_bci); | |
| 161 if (flow->failing()) | |
| 162 return; | |
| 163 if (SharkPrintTypeflowOf != NULL) { | |
| 164 if (!fnmatch(SharkPrintTypeflowOf, name, 0)) | |
| 165 flow->print_on(tty); | |
| 166 } | |
| 167 | |
| 168 // Create the recorders | |
| 169 Arena arena; | |
| 170 env->set_oop_recorder(new OopRecorder(&arena)); | |
| 171 OopMapSet oopmaps; | |
| 172 env->set_debug_info(new DebugInformationRecorder(env->oop_recorder())); | |
| 173 env->debug_info()->set_oopmaps(&oopmaps); | |
| 174 env->set_dependencies(new Dependencies(env)); | |
| 175 | |
| 176 // Create the code buffer and builder | |
| 177 CodeBuffer hscb("Shark", 256 * K, 64 * K); | |
| 178 hscb.initialize_oop_recorder(env->oop_recorder()); | |
| 179 MacroAssembler *masm = new MacroAssembler(&hscb); | |
| 180 SharkCodeBuffer cb(masm); | |
| 181 SharkBuilder builder(&cb); | |
| 182 | |
| 183 // Emit the entry point | |
| 184 SharkEntry *entry = (SharkEntry *) cb.malloc(sizeof(SharkEntry)); | |
| 185 | |
| 186 // Build the LLVM IR for the method | |
| 187 Function *function = SharkFunction::build(env, &builder, flow, name); | |
| 188 | |
| 189 // Generate native code. It's unpleasant that we have to drop into | |
| 190 // the VM to do this -- it blocks safepoints -- but I can't see any | |
| 191 // other way to handle the locking. | |
| 192 { | |
| 193 ThreadInVMfromNative tiv(JavaThread::current()); | |
| 194 generate_native_code(entry, function, name); | |
| 195 } | |
| 196 | |
| 197 // Install the method into the VM | |
| 198 CodeOffsets offsets; | |
| 199 offsets.set_value(CodeOffsets::Deopt, 0); | |
| 200 offsets.set_value(CodeOffsets::Exceptions, 0); | |
| 201 offsets.set_value(CodeOffsets::Verified_Entry, | |
| 202 target->is_static() ? 0 : wordSize); | |
| 203 | |
| 204 ExceptionHandlerTable handler_table; | |
| 205 ImplicitExceptionTable inc_table; | |
| 206 | |
| 207 env->register_method(target, | |
| 208 entry_bci, | |
| 209 &offsets, | |
| 210 0, | |
| 211 &hscb, | |
| 212 0, | |
| 213 &oopmaps, | |
| 214 &handler_table, | |
| 215 &inc_table, | |
| 216 this, | |
| 217 env->comp_level(), | |
| 218 false, | |
| 219 false); | |
| 220 } | |
| 221 | |
| 222 nmethod* SharkCompiler::generate_native_wrapper(MacroAssembler* masm, | |
| 223 methodHandle target, | |
| 2447 | 224 int compile_id, |
| 1692 | 225 BasicType* arg_types, |
| 226 BasicType return_type) { | |
| 227 assert(is_initialized(), "should be"); | |
| 228 ResourceMark rm; | |
| 229 const char *name = methodname( | |
| 230 target->klass_name()->as_utf8(), target->name()->as_utf8()); | |
| 231 | |
| 232 // Create the code buffer and builder | |
| 233 SharkCodeBuffer cb(masm); | |
| 234 SharkBuilder builder(&cb); | |
| 235 | |
| 236 // Emit the entry point | |
| 237 SharkEntry *entry = (SharkEntry *) cb.malloc(sizeof(SharkEntry)); | |
| 238 | |
| 239 // Build the LLVM IR for the method | |
| 240 SharkNativeWrapper *wrapper = SharkNativeWrapper::build( | |
| 241 &builder, target, name, arg_types, return_type); | |
| 242 | |
| 243 // Generate native code | |
| 244 generate_native_code(entry, wrapper->function(), name); | |
| 245 | |
| 246 // Return the nmethod for installation in the VM | |
| 247 return nmethod::new_native_nmethod(target, | |
| 2447 | 248 compile_id, |
| 1692 | 249 masm->code(), |
| 250 0, | |
| 251 0, | |
| 252 wrapper->frame_size(), | |
| 253 wrapper->receiver_offset(), | |
| 254 wrapper->lock_offset(), | |
| 255 wrapper->oop_maps()); | |
| 256 } | |
| 257 | |
| 258 void SharkCompiler::generate_native_code(SharkEntry* entry, | |
| 259 Function* function, | |
| 260 const char* name) { | |
| 261 // Print the LLVM bitcode, if requested | |
| 262 if (SharkPrintBitcodeOf != NULL) { | |
| 263 if (!fnmatch(SharkPrintBitcodeOf, name, 0)) | |
| 264 function->dump(); | |
| 265 } | |
| 266 | |
| 7195 | 267 if (SharkVerifyFunction != NULL) { |
| 268 if (!fnmatch(SharkVerifyFunction, name, 0)) { | |
| 269 verifyFunction(*function); | |
| 270 } | |
| 271 } | |
| 272 | |
| 1692 | 273 // Compile to native code |
| 274 address code = NULL; | |
| 275 context()->add_function(function); | |
| 276 { | |
| 277 MutexLocker locker(execution_engine_lock()); | |
| 278 free_queued_methods(); | |
| 279 | |
| 7195 | 280 #ifndef NDEBUG |
| 281 #if SHARK_LLVM_VERSION <= 31 | |
| 282 #define setCurrentDebugType SetCurrentDebugType | |
| 283 #endif | |
| 1692 | 284 if (SharkPrintAsmOf != NULL) { |
| 285 if (!fnmatch(SharkPrintAsmOf, name, 0)) { | |
| 7195 | 286 llvm::setCurrentDebugType(X86_ONLY("x86-emitter") NOT_X86("jit")); |
| 1692 | 287 llvm::DebugFlag = true; |
| 288 } | |
| 289 else { | |
| 7195 | 290 llvm::setCurrentDebugType(""); |
| 1692 | 291 llvm::DebugFlag = false; |
| 292 } | |
| 7195 | 293 } |
| 294 #ifdef setCurrentDebugType | |
| 295 #undef setCurrentDebugType | |
| 296 #endif | |
| 1692 | 297 #endif // !NDEBUG |
| 298 memory_manager()->set_entry_for_function(function, entry); | |
| 299 code = (address) execution_engine()->getPointerToFunction(function); | |
| 300 } | |
| 7195 | 301 assert(code != NULL, "code must be != NULL"); |
| 1692 | 302 entry->set_entry_point(code); |
| 303 entry->set_function(function); | |
| 304 entry->set_context(context()); | |
| 305 address code_start = entry->code_start(); | |
| 306 address code_limit = entry->code_limit(); | |
| 307 | |
| 308 // Register generated code for profiling, etc | |
| 309 if (JvmtiExport::should_post_dynamic_code_generated()) | |
| 310 JvmtiExport::post_dynamic_code_generated(name, code_start, code_limit); | |
| 311 | |
| 312 // Print debug information, if requested | |
| 313 if (SharkTraceInstalls) { | |
| 314 tty->print_cr( | |
| 315 " [%p-%p): %s (%d bytes code)", | |
| 316 code_start, code_limit, name, code_limit - code_start); | |
| 317 } | |
| 318 } | |
| 319 | |
| 320 void SharkCompiler::free_compiled_method(address code) { | |
| 321 // This method may only be called when the VM is at a safepoint. | |
| 322 // All _thread_in_vm threads will be waiting for the safepoint to | |
| 323 // finish with the exception of the VM thread, so we can consider | |
| 324 // ourself the owner of the execution engine lock even though we | |
| 325 // can't actually acquire it at this time. | |
| 7195 | 326 assert(Thread::current()->is_Compiler_thread(), "must be called by compiler thread"); |
| 327 assert_locked_or_safepoint(CodeCache_lock); | |
| 1692 | 328 |
| 329 SharkEntry *entry = (SharkEntry *) code; | |
| 330 entry->context()->push_to_free_queue(entry->function()); | |
| 331 } | |
| 332 | |
| 333 void SharkCompiler::free_queued_methods() { | |
| 334 // The free queue is protected by the execution engine lock | |
| 335 assert(execution_engine_lock()->owned_by_self(), "should be"); | |
| 336 | |
| 337 while (true) { | |
| 338 Function *function = context()->pop_from_free_queue(); | |
| 339 if (function == NULL) | |
| 340 break; | |
| 341 | |
| 342 execution_engine()->freeMachineCodeForFunction(function); | |
| 343 function->eraseFromParent(); | |
| 344 } | |
| 345 } | |
| 346 | |
| 347 const char* SharkCompiler::methodname(const char* klass, const char* method) { | |
| 348 char *buf = NEW_RESOURCE_ARRAY(char, strlen(klass) + 2 + strlen(method) + 1); | |
| 349 | |
| 350 char *dst = buf; | |
| 351 for (const char *c = klass; *c; c++) { | |
| 352 if (*c == '/') | |
| 353 *(dst++) = '.'; | |
| 354 else | |
| 355 *(dst++) = *c; | |
| 356 } | |
| 357 *(dst++) = ':'; | |
| 358 *(dst++) = ':'; | |
| 359 for (const char *c = method; *c; c++) { | |
| 360 *(dst++) = *c; | |
| 361 } | |
| 362 *(dst++) = '\0'; | |
| 363 return buf; | |
| 364 } |