1 /* 2 * Copyright (c) 2000, 2010, 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 "code/compiledIC.hpp" 27 #include "code/nmethod.hpp" 28 #include "code/scopeDesc.hpp" 29 #include "compiler/compilerOracle.hpp" 30 #include "interpreter/interpreter.hpp" 31 #include "oops/methodDataOop.hpp" 32 #include "oops/methodOop.hpp" 33 #include "oops/oop.inline.hpp" 34 #include "prims/nativeLookup.hpp" 35 #include "runtime/compilationPolicy.hpp" 36 #include "runtime/frame.hpp" 37 #include "runtime/handles.inline.hpp" 38 #include "runtime/rframe.hpp" 39 #include "runtime/simpleThresholdPolicy.hpp" 40 #include "runtime/stubRoutines.hpp" 41 #include "runtime/thread.hpp" 42 #include "runtime/timer.hpp" 43 #include "runtime/vframe.hpp" 44 #include "runtime/vm_operations.hpp" 45 #include "utilities/events.hpp" 46 #include "utilities/globalDefinitions.hpp" 47 48 CompilationPolicy* CompilationPolicy::_policy; 49 elapsedTimer CompilationPolicy::_accumulated_time; 50 bool CompilationPolicy::_in_vm_startup; 51 52 // Determine compilation policy based on command line argument 53 void compilationPolicy_init() { 54 CompilationPolicy::set_in_vm_startup(DelayCompilationDuringStartup); 55 56 switch(CompilationPolicyChoice) { 57 case 0: 58 CompilationPolicy::set_policy(new SimpleCompPolicy()); 59 break; 60 61 case 1: 62 #ifdef COMPILER2 63 CompilationPolicy::set_policy(new StackWalkCompPolicy()); 64 #else 65 Unimplemented(); 66 #endif 67 break; 68 case 2: 69 #ifdef TIERED 70 CompilationPolicy::set_policy(new SimpleThresholdPolicy()); 71 #else 72 Unimplemented(); 73 #endif 74 break; 75 default: 76 fatal("CompilationPolicyChoice must be in the range: [0-2]"); 77 } 78 CompilationPolicy::policy()->initialize(); 79 } 80 81 void CompilationPolicy::completed_vm_startup() { 82 if (TraceCompilationPolicy) { 83 tty->print("CompilationPolicy: completed vm startup.\n"); 84 } 85 _in_vm_startup = false; 86 } 87 88 // Returns true if m must be compiled before executing it 89 // This is intended to force compiles for methods (usually for 90 // debugging) that would otherwise be interpreted for some reason. 91 bool CompilationPolicy::must_be_compiled(methodHandle m, int comp_level) { 92 if (m->has_compiled_code()) return false; // already compiled 93 if (!can_be_compiled(m, comp_level)) return false; 94 95 return !UseInterpreter || // must compile all methods 96 (UseCompiler && AlwaysCompileLoopMethods && m->has_loops() && CompileBroker::should_compile_new_jobs()); // eagerly compile loop methods | 1 /* 2 * Copyright (c) 2000, 2011, 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 "code/compiledIC.hpp" 27 #include "code/nmethod.hpp" 28 #include "code/scopeDesc.hpp" 29 #include "compiler/compilerOracle.hpp" 30 #include "interpreter/interpreter.hpp" 31 #include "oops/methodDataOop.hpp" 32 #include "oops/methodOop.hpp" 33 #include "oops/oop.inline.hpp" 34 #include "prims/nativeLookup.hpp" 35 #include "runtime/advancedThresholdPolicy.hpp" 36 #include "runtime/compilationPolicy.hpp" 37 #include "runtime/frame.hpp" 38 #include "runtime/handles.inline.hpp" 39 #include "runtime/rframe.hpp" 40 #include "runtime/simpleThresholdPolicy.hpp" 41 #include "runtime/stubRoutines.hpp" 42 #include "runtime/thread.hpp" 43 #include "runtime/timer.hpp" 44 #include "runtime/vframe.hpp" 45 #include "runtime/vm_operations.hpp" 46 #include "utilities/events.hpp" 47 #include "utilities/globalDefinitions.hpp" 48 49 CompilationPolicy* CompilationPolicy::_policy; 50 elapsedTimer CompilationPolicy::_accumulated_time; 51 bool CompilationPolicy::_in_vm_startup; 52 53 // Determine compilation policy based on command line argument 54 void compilationPolicy_init() { 55 CompilationPolicy::set_in_vm_startup(DelayCompilationDuringStartup); 56 57 switch(CompilationPolicyChoice) { 58 case 0: 59 CompilationPolicy::set_policy(new SimpleCompPolicy()); 60 break; 61 62 case 1: 63 #ifdef COMPILER2 64 CompilationPolicy::set_policy(new StackWalkCompPolicy()); 65 #else 66 Unimplemented(); 67 #endif 68 break; 69 case 2: 70 #ifdef TIERED 71 CompilationPolicy::set_policy(new SimpleThresholdPolicy()); 72 #else 73 Unimplemented(); 74 #endif 75 break; 76 case 3: 77 #ifdef TIERED 78 CompilationPolicy::set_policy(new AdvancedThresholdPolicy()); 79 #else 80 Unimplemented(); 81 #endif 82 break; 83 default: 84 fatal("CompilationPolicyChoice must be in the range: [0-3]"); 85 } 86 CompilationPolicy::policy()->initialize(); 87 } 88 89 void CompilationPolicy::completed_vm_startup() { 90 if (TraceCompilationPolicy) { 91 tty->print("CompilationPolicy: completed vm startup.\n"); 92 } 93 _in_vm_startup = false; 94 } 95 96 // Returns true if m must be compiled before executing it 97 // This is intended to force compiles for methods (usually for 98 // debugging) that would otherwise be interpreted for some reason. 99 bool CompilationPolicy::must_be_compiled(methodHandle m, int comp_level) { 100 if (m->has_compiled_code()) return false; // already compiled 101 if (!can_be_compiled(m, comp_level)) return false; 102 103 return !UseInterpreter || // must compile all methods 104 (UseCompiler && AlwaysCompileLoopMethods && m->has_loops() && CompileBroker::should_compile_new_jobs()); // eagerly compile loop methods |