Mercurial > hg > truffle
annotate src/share/vm/shark/sharkCompiler.cpp @ 14669:81ccf2c854c7
8036619: Shark: add LLVM 3.4 support
Reviewed-by: twisti
| author | neugens |
|---|---|
| date | Tue, 04 Mar 2014 18:52:06 -0800 |
| parents | 16e101c8691f |
| children | b51e29501f30 |
| rev | line source |
|---|---|
| 1692 | 1 /* |
| 14225 | 2 * Copyright (c) 1999, 2014, 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() | |
| 14225 | 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 | |
|
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136 execution_engine()->addModule(_native_context->module()); |
| 1692 | 137 |
| 138 // All done | |
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139 set_state(initialized); |
| 1692 | 140 } |
| 141 | |
| 142 void SharkCompiler::initialize() { | |
| 143 ShouldNotCallThis(); | |
| 144 } | |
| 145 | |
| 146 void SharkCompiler::compile_method(ciEnv* env, | |
| 147 ciMethod* target, | |
| 148 int entry_bci) { | |
| 149 assert(is_initialized(), "should be"); | |
| 150 ResourceMark rm; | |
| 151 const char *name = methodname( | |
| 152 target->holder()->name()->as_utf8(), target->name()->as_utf8()); | |
| 153 | |
| 154 // Do the typeflow analysis | |
| 155 ciTypeFlow *flow; | |
| 156 if (entry_bci == InvocationEntryBci) | |
| 157 flow = target->get_flow_analysis(); | |
| 158 else | |
| 159 flow = target->get_osr_flow_analysis(entry_bci); | |
| 160 if (flow->failing()) | |
| 161 return; | |
| 162 if (SharkPrintTypeflowOf != NULL) { | |
| 163 if (!fnmatch(SharkPrintTypeflowOf, name, 0)) | |
| 164 flow->print_on(tty); | |
| 165 } | |
| 166 | |
| 167 // Create the recorders | |
| 168 Arena arena; | |
| 169 env->set_oop_recorder(new OopRecorder(&arena)); | |
| 170 OopMapSet oopmaps; | |
| 171 env->set_debug_info(new DebugInformationRecorder(env->oop_recorder())); | |
| 172 env->debug_info()->set_oopmaps(&oopmaps); | |
| 173 env->set_dependencies(new Dependencies(env)); | |
| 174 | |
| 175 // Create the code buffer and builder | |
| 176 CodeBuffer hscb("Shark", 256 * K, 64 * K); | |
| 177 hscb.initialize_oop_recorder(env->oop_recorder()); | |
| 178 MacroAssembler *masm = new MacroAssembler(&hscb); | |
| 179 SharkCodeBuffer cb(masm); | |
| 180 SharkBuilder builder(&cb); | |
| 181 | |
| 182 // Emit the entry point | |
| 183 SharkEntry *entry = (SharkEntry *) cb.malloc(sizeof(SharkEntry)); | |
| 184 | |
| 185 // Build the LLVM IR for the method | |
| 186 Function *function = SharkFunction::build(env, &builder, flow, name); | |
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187 if (env->failing()) { |
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188 return; |
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189 } |
| 1692 | 190 |
| 191 // Generate native code. It's unpleasant that we have to drop into | |
| 192 // the VM to do this -- it blocks safepoints -- but I can't see any | |
| 193 // other way to handle the locking. | |
| 194 { | |
| 195 ThreadInVMfromNative tiv(JavaThread::current()); | |
| 196 generate_native_code(entry, function, name); | |
| 197 } | |
| 198 | |
| 199 // Install the method into the VM | |
| 200 CodeOffsets offsets; | |
| 201 offsets.set_value(CodeOffsets::Deopt, 0); | |
| 202 offsets.set_value(CodeOffsets::Exceptions, 0); | |
| 203 offsets.set_value(CodeOffsets::Verified_Entry, | |
| 204 target->is_static() ? 0 : wordSize); | |
| 205 | |
| 206 ExceptionHandlerTable handler_table; | |
| 207 ImplicitExceptionTable inc_table; | |
| 208 | |
| 209 env->register_method(target, | |
| 210 entry_bci, | |
| 211 &offsets, | |
| 212 0, | |
| 213 &hscb, | |
| 214 0, | |
| 215 &oopmaps, | |
| 216 &handler_table, | |
| 217 &inc_table, | |
| 218 this, | |
| 219 env->comp_level(), | |
| 220 false, | |
| 221 false); | |
| 222 } | |
| 223 | |
| 224 nmethod* SharkCompiler::generate_native_wrapper(MacroAssembler* masm, | |
| 225 methodHandle target, | |
| 2447 | 226 int compile_id, |
| 1692 | 227 BasicType* arg_types, |
| 228 BasicType return_type) { | |
| 229 assert(is_initialized(), "should be"); | |
| 230 ResourceMark rm; | |
| 231 const char *name = methodname( | |
| 232 target->klass_name()->as_utf8(), target->name()->as_utf8()); | |
| 233 | |
| 234 // Create the code buffer and builder | |
| 235 SharkCodeBuffer cb(masm); | |
| 236 SharkBuilder builder(&cb); | |
| 237 | |
| 238 // Emit the entry point | |
| 239 SharkEntry *entry = (SharkEntry *) cb.malloc(sizeof(SharkEntry)); | |
| 240 | |
| 241 // Build the LLVM IR for the method | |
| 242 SharkNativeWrapper *wrapper = SharkNativeWrapper::build( | |
| 243 &builder, target, name, arg_types, return_type); | |
| 244 | |
| 245 // Generate native code | |
| 246 generate_native_code(entry, wrapper->function(), name); | |
| 247 | |
| 248 // Return the nmethod for installation in the VM | |
| 249 return nmethod::new_native_nmethod(target, | |
| 2447 | 250 compile_id, |
| 1692 | 251 masm->code(), |
| 252 0, | |
| 253 0, | |
| 254 wrapper->frame_size(), | |
| 255 wrapper->receiver_offset(), | |
| 256 wrapper->lock_offset(), | |
| 257 wrapper->oop_maps()); | |
| 258 } | |
| 259 | |
| 260 void SharkCompiler::generate_native_code(SharkEntry* entry, | |
| 261 Function* function, | |
| 262 const char* name) { | |
| 263 // Print the LLVM bitcode, if requested | |
| 264 if (SharkPrintBitcodeOf != NULL) { | |
| 265 if (!fnmatch(SharkPrintBitcodeOf, name, 0)) | |
| 266 function->dump(); | |
| 267 } | |
| 268 | |
| 7195 | 269 if (SharkVerifyFunction != NULL) { |
| 270 if (!fnmatch(SharkVerifyFunction, name, 0)) { | |
| 271 verifyFunction(*function); | |
| 272 } | |
| 273 } | |
| 274 | |
| 1692 | 275 // Compile to native code |
| 276 address code = NULL; | |
| 277 context()->add_function(function); | |
| 278 { | |
| 279 MutexLocker locker(execution_engine_lock()); | |
| 280 free_queued_methods(); | |
| 281 | |
| 7195 | 282 #ifndef NDEBUG |
| 283 #if SHARK_LLVM_VERSION <= 31 | |
| 284 #define setCurrentDebugType SetCurrentDebugType | |
| 285 #endif | |
| 1692 | 286 if (SharkPrintAsmOf != NULL) { |
| 287 if (!fnmatch(SharkPrintAsmOf, name, 0)) { | |
| 7195 | 288 llvm::setCurrentDebugType(X86_ONLY("x86-emitter") NOT_X86("jit")); |
| 1692 | 289 llvm::DebugFlag = true; |
| 290 } | |
| 291 else { | |
| 7195 | 292 llvm::setCurrentDebugType(""); |
| 1692 | 293 llvm::DebugFlag = false; |
| 294 } | |
| 7195 | 295 } |
| 296 #ifdef setCurrentDebugType | |
| 297 #undef setCurrentDebugType | |
| 298 #endif | |
| 1692 | 299 #endif // !NDEBUG |
| 300 memory_manager()->set_entry_for_function(function, entry); | |
| 301 code = (address) execution_engine()->getPointerToFunction(function); | |
| 302 } | |
| 7195 | 303 assert(code != NULL, "code must be != NULL"); |
| 1692 | 304 entry->set_entry_point(code); |
| 305 entry->set_function(function); | |
| 306 entry->set_context(context()); | |
| 307 address code_start = entry->code_start(); | |
| 308 address code_limit = entry->code_limit(); | |
| 309 | |
| 310 // Register generated code for profiling, etc | |
| 311 if (JvmtiExport::should_post_dynamic_code_generated()) | |
| 312 JvmtiExport::post_dynamic_code_generated(name, code_start, code_limit); | |
| 313 | |
| 314 // Print debug information, if requested | |
| 315 if (SharkTraceInstalls) { | |
| 316 tty->print_cr( | |
| 317 " [%p-%p): %s (%d bytes code)", | |
| 318 code_start, code_limit, name, code_limit - code_start); | |
| 319 } | |
| 320 } | |
| 321 | |
| 322 void SharkCompiler::free_compiled_method(address code) { | |
| 323 // This method may only be called when the VM is at a safepoint. | |
| 324 // All _thread_in_vm threads will be waiting for the safepoint to | |
| 325 // finish with the exception of the VM thread, so we can consider | |
| 326 // ourself the owner of the execution engine lock even though we | |
| 327 // can't actually acquire it at this time. | |
| 7195 | 328 assert(Thread::current()->is_Compiler_thread(), "must be called by compiler thread"); |
| 329 assert_locked_or_safepoint(CodeCache_lock); | |
| 1692 | 330 |
| 331 SharkEntry *entry = (SharkEntry *) code; | |
| 332 entry->context()->push_to_free_queue(entry->function()); | |
| 333 } | |
| 334 | |
| 335 void SharkCompiler::free_queued_methods() { | |
| 336 // The free queue is protected by the execution engine lock | |
| 337 assert(execution_engine_lock()->owned_by_self(), "should be"); | |
| 338 | |
| 339 while (true) { | |
| 340 Function *function = context()->pop_from_free_queue(); | |
| 341 if (function == NULL) | |
| 342 break; | |
| 343 | |
| 344 execution_engine()->freeMachineCodeForFunction(function); | |
| 345 function->eraseFromParent(); | |
| 346 } | |
| 347 } | |
| 348 | |
| 349 const char* SharkCompiler::methodname(const char* klass, const char* method) { | |
| 350 char *buf = NEW_RESOURCE_ARRAY(char, strlen(klass) + 2 + strlen(method) + 1); | |
| 351 | |
| 352 char *dst = buf; | |
| 353 for (const char *c = klass; *c; c++) { | |
| 354 if (*c == '/') | |
| 355 *(dst++) = '.'; | |
| 356 else | |
| 357 *(dst++) = *c; | |
| 358 } | |
| 359 *(dst++) = ':'; | |
| 360 *(dst++) = ':'; | |
| 361 for (const char *c = method; *c; c++) { | |
| 362 *(dst++) = *c; | |
| 363 } | |
| 364 *(dst++) = '\0'; | |
| 365 return buf; | |
| 366 } | |
| 14669 | 367 |
| 368 void SharkCompiler::print_timers() { | |
| 369 // do nothing | |
| 370 } |