Mercurial > hg > graal-compiler
view src/share/vm/runtime/compilationPolicy.hpp @ 1120:9127aa69352e
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
Summary: Return error on invalid JVMTI_PHASE instead of asserting.
Reviewed-by: dholmes, ohair
author | dcubed |
---|---|
date | Mon, 14 Dec 2009 09:51:09 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 2000-2006 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ // The CompilationPolicy selects which method (if any) should be compiled. // It also decides which methods must always be compiled (i.e., are never // interpreted). class CompilationPolicy : public CHeapObj { private: static CompilationPolicy* _policy; // Accumulated time static elapsedTimer _accumulated_time; static bool _in_vm_startup; public: virtual void method_invocation_event(methodHandle m, TRAPS) = 0; virtual void method_back_branch_event(methodHandle m, int branch_bci, int loop_top_bci, TRAPS) = 0; virtual int compilation_level(methodHandle m, int branch_bci) = 0; void reset_counter_for_invocation_event(methodHandle method); void reset_counter_for_back_branch_event(methodHandle method); static void set_in_vm_startup(bool in_vm_startup) { _in_vm_startup = in_vm_startup; } static void completed_vm_startup(); static bool delayCompilationDuringStartup() { return _in_vm_startup; } static bool mustBeCompiled(methodHandle m); // m must be compiled before executing it static bool canBeCompiled(methodHandle m); // m is allowed to be compiled static void set_policy(CompilationPolicy* policy) { _policy = policy; } static CompilationPolicy* policy() { return _policy; } // Profiling elapsedTimer* accumulated_time() { return &_accumulated_time; } void print_time() PRODUCT_RETURN; }; class SimpleCompPolicy : public CompilationPolicy { public: void method_invocation_event( methodHandle m, TRAPS); void method_back_branch_event(methodHandle m, int branch_bci, int loop_top_bci, TRAPS); int compilation_level(methodHandle m, int branch_bci); }; // StackWalkCompPolicy - existing C2 policy #ifdef COMPILER2 class StackWalkCompPolicy : public CompilationPolicy { public: void method_invocation_event(methodHandle m, TRAPS); void method_back_branch_event(methodHandle m, int branch_bci, int loop_top_bci, TRAPS); int compilation_level(methodHandle m, int branch_bci); private: RFrame* findTopInlinableFrame(GrowableArray<RFrame*>* stack); RFrame* senderOf(RFrame* rf, GrowableArray<RFrame*>* stack); // the following variables hold values computed by the last inlining decision // they are used for performance debugging only (print better messages) static const char* _msg; // reason for not inlining static const char* shouldInline (methodHandle callee, float frequency, int cnt); // positive filter: should send be inlined? returns NULL (--> yes) or rejection msg static const char* shouldNotInline(methodHandle callee); // negative filter: should send NOT be inlined? returns NULL (--> inline) or rejection msg }; #endif