author | dnsimon |
Tue, 10 May 2016 11:48:06 +0200 | |
changeset 38666 | 5ff19807abd5 |
parent 38218 | f5ba1dea04eb |
child 40034 | 4a288aaf8511 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2010, 2016, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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#include "precompiled.hpp" |
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#include "compiler/compileBroker.hpp" |
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#include "memory/resourceArea.hpp" |
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#include "runtime/arguments.hpp" |
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#include "runtime/simpleThresholdPolicy.hpp" |
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#include "runtime/simpleThresholdPolicy.inline.hpp" |
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#include "code/scopeDesc.hpp" |
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#if INCLUDE_JVMCI |
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#include "jvmci/jvmciRuntime.hpp" |
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#endif |
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|
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|
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void SimpleThresholdPolicy::print_counters(const char* prefix, methodHandle mh) { |
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int invocation_count = mh->invocation_count(); |
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int backedge_count = mh->backedge_count(); |
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MethodData* mdh = mh->method_data(); |
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int mdo_invocations = 0, mdo_backedges = 0; |
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int mdo_invocations_start = 0, mdo_backedges_start = 0; |
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if (mdh != NULL) { |
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mdo_invocations = mdh->invocation_count(); |
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mdo_backedges = mdh->backedge_count(); |
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mdo_invocations_start = mdh->invocation_count_start(); |
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mdo_backedges_start = mdh->backedge_count_start(); |
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} |
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tty->print(" %stotal=%d,%d %smdo=%d(%d),%d(%d)", prefix, |
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invocation_count, backedge_count, prefix, |
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mdo_invocations, mdo_invocations_start, |
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mdo_backedges, mdo_backedges_start); |
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tty->print(" %smax levels=%d,%d", prefix, |
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mh->highest_comp_level(), mh->highest_osr_comp_level()); |
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} |
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// Print an event. |
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void SimpleThresholdPolicy::print_event(EventType type, methodHandle mh, methodHandle imh, |
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int bci, CompLevel level) { |
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bool inlinee_event = mh() != imh(); |
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ttyLocker tty_lock; |
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tty->print("%lf: [", os::elapsedTime()); |
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switch(type) { |
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case CALL: |
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tty->print("call"); |
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break; |
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case LOOP: |
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tty->print("loop"); |
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break; |
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case COMPILE: |
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tty->print("compile"); |
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break; |
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case REMOVE_FROM_QUEUE: |
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tty->print("remove-from-queue"); |
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break; |
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case UPDATE_IN_QUEUE: |
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tty->print("update-in-queue"); |
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break; |
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case REPROFILE: |
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tty->print("reprofile"); |
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break; |
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case MAKE_NOT_ENTRANT: |
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tty->print("make-not-entrant"); |
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break; |
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default: |
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tty->print("unknown"); |
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6453 | 89 |
} |
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tty->print(" level=%d ", level); |
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ResourceMark rm; |
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char *method_name = mh->name_and_sig_as_C_string(); |
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tty->print("[%s", method_name); |
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if (inlinee_event) { |
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char *inlinee_name = imh->name_and_sig_as_C_string(); |
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tty->print(" [%s]] ", inlinee_name); |
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} |
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else tty->print("] "); |
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tty->print("@%d queues=%d,%d", bci, CompileBroker::queue_size(CompLevel_full_profile), |
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CompileBroker::queue_size(CompLevel_full_optimization)); |
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print_specific(type, mh, imh, bci, level); |
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||
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if (type != COMPILE) { |
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print_counters("", mh); |
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if (inlinee_event) { |
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print_counters("inlinee ", imh); |
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} |
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tty->print(" compilable="); |
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bool need_comma = false; |
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if (!mh->is_not_compilable(CompLevel_full_profile)) { |
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tty->print("c1"); |
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need_comma = true; |
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} |
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if (!mh->is_not_osr_compilable(CompLevel_full_profile)) { |
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if (need_comma) tty->print(","); |
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tty->print("c1-osr"); |
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need_comma = true; |
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} |
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if (!mh->is_not_compilable(CompLevel_full_optimization)) { |
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if (need_comma) tty->print(","); |
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tty->print("c2"); |
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need_comma = true; |
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} |
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if (!mh->is_not_osr_compilable(CompLevel_full_optimization)) { |
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if (need_comma) tty->print(","); |
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tty->print("c2-osr"); |
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} |
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tty->print(" status="); |
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if (mh->queued_for_compilation()) { |
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tty->print("in-queue"); |
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} else tty->print("idle"); |
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} |
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tty->print_cr("]"); |
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} |
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||
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void SimpleThresholdPolicy::initialize() { |
|
140 |
if (FLAG_IS_DEFAULT(CICompilerCount)) { |
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FLAG_SET_DEFAULT(CICompilerCount, 3); |
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} |
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int count = CICompilerCount; |
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#ifdef _LP64 |
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// On 64-bit systems, scale the number of compiler threads with |
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// the number of cores available on the system. Scaling is not |
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// performed on 32-bit systems because it can lead to exhaustion |
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// of the virtual memory address space available to the JVM. |
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if (CICompilerCountPerCPU) { |
150 |
count = MAX2(log2_intptr(os::active_processor_count()), 1) * 3 / 2; |
|
151 |
} |
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#endif |
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set_c1_count(MAX2(count / 3, 1)); |
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set_c2_count(MAX2(count - c1_count(), 1)); |
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FLAG_SET_ERGO(intx, CICompilerCount, c1_count() + c2_count()); |
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} |
157 |
||
158 |
void SimpleThresholdPolicy::set_carry_if_necessary(InvocationCounter *counter) { |
|
159 |
if (!counter->carry() && counter->count() > InvocationCounter::count_limit / 2) { |
|
160 |
counter->set_carry_flag(); |
|
161 |
} |
|
162 |
} |
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163 |
||
164 |
// Set carry flags on the counters if necessary |
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void SimpleThresholdPolicy::handle_counter_overflow(Method* method) { |
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MethodCounters *mcs = method->method_counters(); |
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if (mcs != NULL) { |
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set_carry_if_necessary(mcs->invocation_counter()); |
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set_carry_if_necessary(mcs->backedge_counter()); |
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} |
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MethodData* mdo = method->method_data(); |
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if (mdo != NULL) { |
173 |
set_carry_if_necessary(mdo->invocation_counter()); |
|
174 |
set_carry_if_necessary(mdo->backedge_counter()); |
|
175 |
} |
|
176 |
} |
|
177 |
||
178 |
// Called with the queue locked and with at least one element |
|
179 |
CompileTask* SimpleThresholdPolicy::select_task(CompileQueue* compile_queue) { |
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return select_task_helper(compile_queue); |
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} |
182 |
||
8322 | 183 |
void SimpleThresholdPolicy::reprofile(ScopeDesc* trap_scope, bool is_osr) { |
184 |
for (ScopeDesc* sd = trap_scope;; sd = sd->sender()) { |
|
185 |
if (PrintTieredEvents) { |
|
186 |
methodHandle mh(sd->method()); |
|
187 |
print_event(REPROFILE, mh, mh, InvocationEntryBci, CompLevel_none); |
|
188 |
} |
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MethodData* mdo = sd->method()->method_data(); |
8322 | 190 |
if (mdo != NULL) { |
191 |
mdo->reset_start_counters(); |
|
192 |
} |
|
193 |
if (sd->is_top()) break; |
|
194 |
} |
|
195 |
} |
|
196 |
||
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nmethod* SimpleThresholdPolicy::event(const methodHandle& method, const methodHandle& inlinee, |
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int branch_bci, int bci, CompLevel comp_level, CompiledMethod* nm, JavaThread* thread) { |
6453 | 199 |
if (comp_level == CompLevel_none && |
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200 |
JvmtiExport::can_post_interpreter_events() && |
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201 |
thread->is_interp_only_mode()) { |
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202 |
return NULL; |
6453 | 203 |
} |
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204 |
if (CompileTheWorld || ReplayCompiles) { |
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205 |
// Don't trigger other compiles in testing mode |
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206 |
return NULL; |
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|
207 |
} |
6453 | 208 |
|
209 |
handle_counter_overflow(method()); |
|
210 |
if (method() != inlinee()) { |
|
211 |
handle_counter_overflow(inlinee()); |
|
212 |
} |
|
213 |
||
214 |
if (PrintTieredEvents) { |
|
215 |
print_event(bci == InvocationEntryBci ? CALL : LOOP, method, inlinee, bci, comp_level); |
|
216 |
} |
|
217 |
||
218 |
if (bci == InvocationEntryBci) { |
|
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219 |
method_invocation_event(method, inlinee, comp_level, nm, thread); |
6453 | 220 |
} else { |
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221 |
// method == inlinee if the event originated in the main method |
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222 |
method_back_branch_event(method, inlinee, bci, comp_level, nm, thread); |
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223 |
// Check if event led to a higher level OSR compilation |
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224 |
nmethod* osr_nm = inlinee->lookup_osr_nmethod_for(bci, comp_level, false); |
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225 |
if (osr_nm != NULL && osr_nm->comp_level() > comp_level) { |
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|
226 |
// Perform OSR with new nmethod |
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|
227 |
return osr_nm; |
6453 | 228 |
} |
229 |
} |
|
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230 |
return NULL; |
6453 | 231 |
} |
232 |
||
233 |
// Check if the method can be compiled, change level if necessary |
|
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234 |
void SimpleThresholdPolicy::compile(const methodHandle& mh, int bci, CompLevel level, JavaThread* thread) { |
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235 |
assert(level <= TieredStopAtLevel, "Invalid compilation level"); |
6453 | 236 |
if (level == CompLevel_none) { |
237 |
return; |
|
238 |
} |
|
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|
239 |
|
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|
240 |
#if INCLUDE_JVMCI |
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|
241 |
// We can't compile with a JVMCI compiler until the module system is initialized. |
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|
242 |
if (level == CompLevel_full_optimization && UseJVMCICompiler && !Universe::is_module_initialized()) { |
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|
243 |
return; |
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|
244 |
} |
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|
245 |
#endif |
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|
246 |
|
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|
247 |
// Check if the method can be compiled. If it cannot be compiled with C1, continue profiling |
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248 |
// in the interpreter and then compile with C2 (the transition function will request that, |
93110864f81e
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|
249 |
// see common() ). If the method cannot be compiled with C2 but still can with C1, compile it with |
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|
250 |
// pure C1. |
6453 | 251 |
if (!can_be_compiled(mh, level)) { |
252 |
if (level == CompLevel_full_optimization && can_be_compiled(mh, CompLevel_simple)) { |
|
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|
253 |
compile(mh, bci, CompLevel_simple, thread); |
6453 | 254 |
} |
255 |
return; |
|
256 |
} |
|
13891
35dabd293e56
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changeset
|
257 |
if (bci != InvocationEntryBci && mh->is_not_osr_compilable(level)) { |
6453 | 258 |
return; |
259 |
} |
|
24321
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|
260 |
if (!CompileBroker::compilation_is_in_queue(mh)) { |
10250
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|
261 |
if (PrintTieredEvents) { |
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|
262 |
print_event(COMPILE, mh, mh, bci, level); |
0794cd144834
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|
263 |
} |
11572
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|
264 |
submit_compile(mh, bci, level, thread); |
6453 | 265 |
} |
266 |
} |
|
267 |
||
268 |
// Tell the broker to compile the method |
|
33593
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|
269 |
void SimpleThresholdPolicy::submit_compile(const methodHandle& mh, int bci, CompLevel level, JavaThread* thread) { |
6453 | 270 |
int hot_count = (bci == InvocationEntryBci) ? mh->invocation_count() : mh->backedge_count(); |
38218 | 271 |
CompileBroker::compile_method(mh, bci, level, mh, hot_count, CompileTask::Reason_Tiered, thread); |
6453 | 272 |
} |
273 |
||
274 |
// Call and loop predicates determine whether a transition to a higher |
|
275 |
// compilation level should be performed (pointers to predicate functions |
|
276 |
// are passed to common() transition function). |
|
28650
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|
277 |
bool SimpleThresholdPolicy::loop_predicate(int i, int b, CompLevel cur_level, Method* method) { |
6453 | 278 |
switch(cur_level) { |
279 |
case CompLevel_none: |
|
280 |
case CompLevel_limited_profile: { |
|
28650
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|
281 |
return loop_predicate_helper<CompLevel_none>(i, b, 1.0, method); |
6453 | 282 |
} |
283 |
case CompLevel_full_profile: { |
|
28650
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changeset
|
284 |
return loop_predicate_helper<CompLevel_full_profile>(i, b, 1.0, method); |
6453 | 285 |
} |
286 |
default: |
|
287 |
return true; |
|
288 |
} |
|
289 |
} |
|
290 |
||
28650
772aaab2582f
8059606: Enable per-method usage of CompileThresholdScaling (per-method compilation thresholds)
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diff
changeset
|
291 |
bool SimpleThresholdPolicy::call_predicate(int i, int b, CompLevel cur_level, Method* method) { |
6453 | 292 |
switch(cur_level) { |
293 |
case CompLevel_none: |
|
294 |
case CompLevel_limited_profile: { |
|
28650
772aaab2582f
8059606: Enable per-method usage of CompileThresholdScaling (per-method compilation thresholds)
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27447
diff
changeset
|
295 |
return call_predicate_helper<CompLevel_none>(i, b, 1.0, method); |
6453 | 296 |
} |
297 |
case CompLevel_full_profile: { |
|
28650
772aaab2582f
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diff
changeset
|
298 |
return call_predicate_helper<CompLevel_full_profile>(i, b, 1.0, method); |
6453 | 299 |
} |
300 |
default: |
|
301 |
return true; |
|
302 |
} |
|
303 |
} |
|
304 |
||
305 |
// Determine is a method is mature. |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
11572
diff
changeset
|
306 |
bool SimpleThresholdPolicy::is_mature(Method* method) { |
6453 | 307 |
if (is_trivial(method)) return true; |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
11572
diff
changeset
|
308 |
MethodData* mdo = method->method_data(); |
6453 | 309 |
if (mdo != NULL) { |
310 |
int i = mdo->invocation_count(); |
|
311 |
int b = mdo->backedge_count(); |
|
312 |
double k = ProfileMaturityPercentage / 100.0; |
|
28650
772aaab2582f
8059606: Enable per-method usage of CompileThresholdScaling (per-method compilation thresholds)
zmajo
parents:
27447
diff
changeset
|
313 |
return call_predicate_helper<CompLevel_full_profile>(i, b, k, method) || |
772aaab2582f
8059606: Enable per-method usage of CompileThresholdScaling (per-method compilation thresholds)
zmajo
parents:
27447
diff
changeset
|
314 |
loop_predicate_helper<CompLevel_full_profile>(i, b, k, method); |
6453 | 315 |
} |
316 |
return false; |
|
317 |
} |
|
318 |
||
319 |
// Common transition function. Given a predicate determines if a method should transition to another level. |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
11572
diff
changeset
|
320 |
CompLevel SimpleThresholdPolicy::common(Predicate p, Method* method, CompLevel cur_level) { |
6453 | 321 |
CompLevel next_level = cur_level; |
322 |
int i = method->invocation_count(); |
|
323 |
int b = method->backedge_count(); |
|
324 |
||
10250
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
325 |
if (is_trivial(method)) { |
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
326 |
next_level = CompLevel_simple; |
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
327 |
} else { |
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
328 |
switch(cur_level) { |
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
329 |
case CompLevel_none: |
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
330 |
// If we were at full profile level, would we switch to full opt? |
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
331 |
if (common(p, method, CompLevel_full_profile) == CompLevel_full_optimization) { |
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
332 |
next_level = CompLevel_full_optimization; |
28650
772aaab2582f
8059606: Enable per-method usage of CompileThresholdScaling (per-method compilation thresholds)
zmajo
parents:
27447
diff
changeset
|
333 |
} else if ((this->*p)(i, b, cur_level, method)) { |
10250
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
334 |
next_level = CompLevel_full_profile; |
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
335 |
} |
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
336 |
break; |
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
337 |
case CompLevel_limited_profile: |
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
338 |
case CompLevel_full_profile: |
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
339 |
{ |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
11572
diff
changeset
|
340 |
MethodData* mdo = method->method_data(); |
10250
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
341 |
if (mdo != NULL) { |
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
342 |
if (mdo->would_profile()) { |
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
343 |
int mdo_i = mdo->invocation_count_delta(); |
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
344 |
int mdo_b = mdo->backedge_count_delta(); |
28650
772aaab2582f
8059606: Enable per-method usage of CompileThresholdScaling (per-method compilation thresholds)
zmajo
parents:
27447
diff
changeset
|
345 |
if ((this->*p)(mdo_i, mdo_b, cur_level, method)) { |
10250
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
346 |
next_level = CompLevel_full_optimization; |
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
347 |
} |
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
348 |
} else { |
8322 | 349 |
next_level = CompLevel_full_optimization; |
350 |
} |
|
6453 | 351 |
} |
352 |
} |
|
10250
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
353 |
break; |
6453 | 354 |
} |
355 |
} |
|
10250
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
10014
diff
changeset
|
356 |
return MIN2(next_level, (CompLevel)TieredStopAtLevel); |
6453 | 357 |
} |
358 |
||
359 |
// Determine if a method should be compiled with a normal entry point at a different level. |
|
38666
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38218
diff
changeset
|
360 |
CompLevel SimpleThresholdPolicy::call_event(Method* method, CompLevel cur_level, JavaThread* thread) { |
10013
714ad59b56cb
7058689: Tiered: Reprofiling doesn't happen in presence of level 4 OSR methods
iveresov
parents:
9625
diff
changeset
|
361 |
CompLevel osr_level = MIN2((CompLevel) method->highest_osr_comp_level(), |
714ad59b56cb
7058689: Tiered: Reprofiling doesn't happen in presence of level 4 OSR methods
iveresov
parents:
9625
diff
changeset
|
362 |
common(&SimpleThresholdPolicy::loop_predicate, method, cur_level)); |
6453 | 363 |
CompLevel next_level = common(&SimpleThresholdPolicy::call_predicate, method, cur_level); |
364 |
||
365 |
// If OSR method level is greater than the regular method level, the levels should be |
|
366 |
// equalized by raising the regular method level in order to avoid OSRs during each |
|
367 |
// invocation of the method. |
|
368 |
if (osr_level == CompLevel_full_optimization && cur_level == CompLevel_full_profile) { |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
11572
diff
changeset
|
369 |
MethodData* mdo = method->method_data(); |
6453 | 370 |
guarantee(mdo != NULL, "MDO should not be NULL"); |
371 |
if (mdo->invocation_count() >= 1) { |
|
372 |
next_level = CompLevel_full_optimization; |
|
373 |
} |
|
374 |
} else { |
|
375 |
next_level = MAX2(osr_level, next_level); |
|
376 |
} |
|
38666
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38218
diff
changeset
|
377 |
#if INCLUDE_JVMCI |
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38218
diff
changeset
|
378 |
if (UseJVMCICompiler) { |
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38218
diff
changeset
|
379 |
next_level = JVMCIRuntime::adjust_comp_level(method, false, next_level, thread); |
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38218
diff
changeset
|
380 |
} |
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38218
diff
changeset
|
381 |
#endif |
6453 | 382 |
return next_level; |
383 |
} |
|
384 |
||
385 |
// Determine if we should do an OSR compilation of a given method. |
|
38666
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38218
diff
changeset
|
386 |
CompLevel SimpleThresholdPolicy::loop_event(Method* method, CompLevel cur_level, JavaThread* thread) { |
10013
714ad59b56cb
7058689: Tiered: Reprofiling doesn't happen in presence of level 4 OSR methods
iveresov
parents:
9625
diff
changeset
|
387 |
CompLevel next_level = common(&SimpleThresholdPolicy::loop_predicate, method, cur_level); |
6453 | 388 |
if (cur_level == CompLevel_none) { |
389 |
// If there is a live OSR method that means that we deopted to the interpreter |
|
390 |
// for the transition. |
|
10013
714ad59b56cb
7058689: Tiered: Reprofiling doesn't happen in presence of level 4 OSR methods
iveresov
parents:
9625
diff
changeset
|
391 |
CompLevel osr_level = MIN2((CompLevel)method->highest_osr_comp_level(), next_level); |
6453 | 392 |
if (osr_level > CompLevel_none) { |
393 |
return osr_level; |
|
394 |
} |
|
395 |
} |
|
38666
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38218
diff
changeset
|
396 |
#if INCLUDE_JVMCI |
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38218
diff
changeset
|
397 |
if (UseJVMCICompiler) { |
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38218
diff
changeset
|
398 |
next_level = JVMCIRuntime::adjust_comp_level(method, true, next_level, thread); |
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38218
diff
changeset
|
399 |
} |
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38218
diff
changeset
|
400 |
#endif |
10013
714ad59b56cb
7058689: Tiered: Reprofiling doesn't happen in presence of level 4 OSR methods
iveresov
parents:
9625
diff
changeset
|
401 |
return next_level; |
6453 | 402 |
} |
403 |
||
404 |
||
405 |
// Handle the invocation event. |
|
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8140274: methodHandles and constantPoolHandles should be passed as const references
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|
406 |
void SimpleThresholdPolicy::method_invocation_event(const methodHandle& mh, const methodHandle& imh, |
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|
407 |
CompLevel level, CompiledMethod* nm, JavaThread* thread) { |
24321
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8040798: compiler/startup/SmallCodeCacheStartup.java timed out in RT_Baseline
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|
408 |
if (is_compilation_enabled() && !CompileBroker::compilation_is_in_queue(mh)) { |
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|
409 |
CompLevel next_level = call_event(mh(), level, thread); |
6453 | 410 |
if (next_level != level) { |
11572
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7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
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|
411 |
compile(mh, InvocationEntryBci, next_level, thread); |
6453 | 412 |
} |
413 |
} |
|
414 |
} |
|
415 |
||
416 |
// Handle the back branch event. Notice that we can compile the method |
|
417 |
// with a regular entry from here. |
|
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8140274: methodHandles and constantPoolHandles should be passed as const references
coleenp
parents:
28650
diff
changeset
|
418 |
void SimpleThresholdPolicy::method_back_branch_event(const methodHandle& mh, const methodHandle& imh, |
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changeset
|
419 |
int bci, CompLevel level, CompiledMethod* nm, JavaThread* thread) { |
6453 | 420 |
// If the method is already compiling, quickly bail out. |
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8040798: compiler/startup/SmallCodeCacheStartup.java timed out in RT_Baseline
anoll
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diff
changeset
|
421 |
if (is_compilation_enabled() && !CompileBroker::compilation_is_in_queue(mh)) { |
22551 | 422 |
// Use loop event as an opportunity to also check there's been |
6453 | 423 |
// enough calls. |
424 |
CompLevel cur_level = comp_level(mh()); |
|
38666
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8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38218
diff
changeset
|
425 |
CompLevel next_level = call_event(mh(), cur_level, thread); |
5ff19807abd5
8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
dnsimon
parents:
38218
diff
changeset
|
426 |
CompLevel next_osr_level = loop_event(mh(), level, thread); |
6453 | 427 |
|
428 |
next_level = MAX2(next_level, |
|
429 |
next_osr_level < CompLevel_full_optimization ? next_osr_level : cur_level); |
|
430 |
bool is_compiling = false; |
|
431 |
if (next_level != cur_level) { |
|
11572
84afef481892
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
11192
diff
changeset
|
432 |
compile(mh, InvocationEntryBci, next_level, thread); |
6453 | 433 |
is_compiling = true; |
434 |
} |
|
435 |
||
436 |
// Do the OSR version |
|
437 |
if (!is_compiling && next_osr_level != level) { |
|
11572
84afef481892
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
11192
diff
changeset
|
438 |
compile(mh, bci, next_osr_level, thread); |
6453 | 439 |
} |
440 |
} |
|
441 |
} |