author | kvn |
Tue, 26 Jun 2012 09:06:16 -0700 | |
changeset 13111 | e8a578a9b20a |
parent 12160 | c3ce1d6b88e1 |
child 13391 | 30245956af37 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1998, 2011, 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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#include "precompiled.hpp" |
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#include "classfile/systemDictionary.hpp" |
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#include "classfile/vmSymbols.hpp" |
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#include "compiler/compileBroker.hpp" |
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#include "compiler/compileLog.hpp" |
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#include "interpreter/linkResolver.hpp" |
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#include "oops/objArrayKlass.hpp" |
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#include "opto/callGenerator.hpp" |
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#include "opto/parse.hpp" |
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#include "runtime/handles.inline.hpp" |
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//============================================================================= |
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//------------------------------InlineTree------------------------------------- |
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InlineTree::InlineTree(Compile* c, |
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const InlineTree *caller_tree, ciMethod* callee, |
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JVMState* caller_jvms, int caller_bci, |
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float site_invoke_ratio, int max_inline_level) : |
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C(c), |
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_caller_jvms(caller_jvms), |
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_caller_tree((InlineTree*) caller_tree), |
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_method(callee), |
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_site_invoke_ratio(site_invoke_ratio), |
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_max_inline_level(max_inline_level), |
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_count_inline_bcs(method()->code_size_for_inlining()) |
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{ |
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NOT_PRODUCT(_count_inlines = 0;) |
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if (_caller_jvms != NULL) { |
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// Keep a private copy of the caller_jvms: |
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_caller_jvms = new (C) JVMState(caller_jvms->method(), caller_tree->caller_jvms()); |
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_caller_jvms->set_bci(caller_jvms->bci()); |
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assert(!caller_jvms->should_reexecute(), "there should be no reexecute bytecode with inlining"); |
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} |
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assert(_caller_jvms->same_calls_as(caller_jvms), "consistent JVMS"); |
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assert((caller_tree == NULL ? 0 : caller_tree->stack_depth() + 1) == stack_depth(), "correct (redundant) depth parameter"); |
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assert(caller_bci == this->caller_bci(), "correct (redundant) bci parameter"); |
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if (UseOldInlining) { |
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// Update hierarchical counts, count_inline_bcs() and count_inlines() |
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InlineTree *caller = (InlineTree *)caller_tree; |
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for( ; caller != NULL; caller = ((InlineTree *)(caller->caller_tree())) ) { |
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caller->_count_inline_bcs += count_inline_bcs(); |
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NOT_PRODUCT(caller->_count_inlines++;) |
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} |
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} |
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} |
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InlineTree::InlineTree(Compile* c, ciMethod* callee_method, JVMState* caller_jvms, |
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float site_invoke_ratio, int max_inline_level) : |
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C(c), |
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_caller_jvms(caller_jvms), |
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_caller_tree(NULL), |
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_method(callee_method), |
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_site_invoke_ratio(site_invoke_ratio), |
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_max_inline_level(max_inline_level), |
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_count_inline_bcs(method()->code_size()) |
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{ |
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NOT_PRODUCT(_count_inlines = 0;) |
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assert(!UseOldInlining, "do not use for old stuff"); |
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} |
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static bool is_init_with_ea(ciMethod* callee_method, |
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ciMethod* caller_method, Compile* C) { |
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// True when EA is ON and a java constructor is called or |
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// a super constructor is called from an inlined java constructor. |
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return C->do_escape_analysis() && EliminateAllocations && |
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( callee_method->is_initializer() || |
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(caller_method->is_initializer() && |
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caller_method != C->method() && |
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caller_method->holder()->is_subclass_of(callee_method->holder())) |
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); |
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} |
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// positive filter: should send be inlined? returns NULL, if yes, or rejection msg |
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const char* InlineTree::should_inline(ciMethod* callee_method, ciMethod* caller_method, int caller_bci, ciCallProfile& profile, WarmCallInfo* wci_result) const { |
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// Allows targeted inlining |
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if(callee_method->should_inline()) { |
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*wci_result = *(WarmCallInfo::always_hot()); |
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if (PrintInlining && Verbose) { |
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CompileTask::print_inline_indent(inline_level()); |
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tty->print_cr("Inlined method is hot: "); |
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} |
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return NULL; |
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} |
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// positive filter: should send be inlined? returns NULL (--> yes) |
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// or rejection msg |
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int size = callee_method->code_size_for_inlining(); |
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// Check for too many throws (and not too huge) |
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if(callee_method->interpreter_throwout_count() > InlineThrowCount && |
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size < InlineThrowMaxSize ) { |
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wci_result->set_profit(wci_result->profit() * 100); |
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if (PrintInlining && Verbose) { |
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CompileTask::print_inline_indent(inline_level()); |
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tty->print_cr("Inlined method with many throws (throws=%d):", callee_method->interpreter_throwout_count()); |
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} |
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return NULL; |
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} |
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if (!UseOldInlining) { |
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return NULL; // size and frequency are represented in a new way |
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} |
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int default_max_inline_size = C->max_inline_size(); |
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int inline_small_code_size = InlineSmallCode / 4; |
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int max_inline_size = default_max_inline_size; |
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int call_site_count = method()->scale_count(profile.count()); |
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int invoke_count = method()->interpreter_invocation_count(); |
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// Bytecoded method handle adapters do not have interpreter |
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// profiling data but only made up MDO data. Get the counter from |
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// there. |
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if (caller_method->is_method_handle_adapter()) { |
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assert(method()->method_data_or_null(), "must have an MDO"); |
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ciMethodData* mdo = method()->method_data(); |
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ciProfileData* mha_profile = mdo->bci_to_data(caller_bci); |
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assert(mha_profile, "must exist"); |
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CounterData* cd = mha_profile->as_CounterData(); |
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invoke_count = cd->count(); |
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if (invoke_count == 0) { |
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return "method handle not reached"; |
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} |
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if (_caller_jvms != NULL && _caller_jvms->method() != NULL && |
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_caller_jvms->method()->method_data() != NULL && |
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!_caller_jvms->method()->method_data()->is_empty()) { |
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ciMethodData* mdo = _caller_jvms->method()->method_data(); |
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ciProfileData* mha_profile = mdo->bci_to_data(_caller_jvms->bci()); |
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assert(mha_profile, "must exist"); |
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CounterData* cd = mha_profile->as_CounterData(); |
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call_site_count = cd->count(); |
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} else { |
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call_site_count = invoke_count; // use the same value |
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} |
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} |
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assert(invoke_count != 0, "require invocation count greater than zero"); |
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int freq = call_site_count / invoke_count; |
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// bump the max size if the call is frequent |
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if ((freq >= InlineFrequencyRatio) || |
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(call_site_count >= InlineFrequencyCount) || |
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is_init_with_ea(callee_method, caller_method, C)) { |
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max_inline_size = C->freq_inline_size(); |
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if (size <= max_inline_size && TraceFrequencyInlining) { |
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CompileTask::print_inline_indent(inline_level()); |
1 | 172 |
tty->print_cr("Inlined frequent method (freq=%d count=%d):", freq, call_site_count); |
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CompileTask::print_inline_indent(inline_level()); |
1 | 174 |
callee_method->print(); |
175 |
tty->cr(); |
|
176 |
} |
|
177 |
} else { |
|
178 |
// Not hot. Check for medium-sized pre-existing nmethod at cold sites. |
|
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if (callee_method->has_compiled_code() && |
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callee_method->instructions_size(CompLevel_full_optimization) > inline_small_code_size) |
1 | 181 |
return "already compiled into a medium method"; |
182 |
} |
|
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if (size > max_inline_size) { |
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if (max_inline_size > default_max_inline_size) |
1 | 185 |
return "hot method too big"; |
186 |
return "too big"; |
|
187 |
} |
|
188 |
return NULL; |
|
189 |
} |
|
190 |
||
191 |
||
192 |
// negative filter: should send NOT be inlined? returns NULL, ok to inline, or rejection msg |
|
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193 |
const char* InlineTree::should_not_inline(ciMethod *callee_method, ciMethod* caller_method, WarmCallInfo* wci_result) const { |
1 | 194 |
// negative filter: should send NOT be inlined? returns NULL (--> inline) or rejection msg |
195 |
if (!UseOldInlining) { |
|
196 |
const char* fail = NULL; |
|
197 |
if (callee_method->is_abstract()) fail = "abstract method"; |
|
198 |
// note: we allow ik->is_abstract() |
|
199 |
if (!callee_method->holder()->is_initialized()) fail = "method holder not initialized"; |
|
200 |
if (callee_method->is_native()) fail = "native method"; |
|
201 |
||
202 |
if (fail) { |
|
203 |
*wci_result = *(WarmCallInfo::always_cold()); |
|
204 |
return fail; |
|
205 |
} |
|
206 |
||
207 |
if (callee_method->has_unloaded_classes_in_signature()) { |
|
208 |
wci_result->set_profit(wci_result->profit() * 0.1); |
|
209 |
} |
|
210 |
||
211 |
// don't inline exception code unless the top method belongs to an |
|
212 |
// exception class |
|
213 |
if (callee_method->holder()->is_subclass_of(C->env()->Throwable_klass())) { |
|
214 |
ciMethod* top_method = caller_jvms() ? caller_jvms()->of_depth(1)->method() : method(); |
|
215 |
if (!top_method->holder()->is_subclass_of(C->env()->Throwable_klass())) { |
|
216 |
wci_result->set_profit(wci_result->profit() * 0.1); |
|
217 |
} |
|
218 |
} |
|
219 |
||
6453 | 220 |
if (callee_method->has_compiled_code() && callee_method->instructions_size(CompLevel_full_optimization) > InlineSmallCode) { |
1 | 221 |
wci_result->set_profit(wci_result->profit() * 0.1); |
222 |
// %%% adjust wci_result->size()? |
|
223 |
} |
|
224 |
||
225 |
return NULL; |
|
226 |
} |
|
227 |
||
5687 | 228 |
// Always inline MethodHandle methods and generated MethodHandle adapters. |
229 |
if (callee_method->is_method_handle_invoke() || callee_method->is_method_handle_adapter()) |
|
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return NULL; |
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231 |
|
1 | 232 |
// First check all inlining restrictions which are required for correctness |
233 |
if (callee_method->is_abstract()) return "abstract method"; |
|
234 |
// note: we allow ik->is_abstract() |
|
235 |
if (!callee_method->holder()->is_initialized()) return "method holder not initialized"; |
|
236 |
if (callee_method->is_native()) return "native method"; |
|
237 |
if (callee_method->has_unloaded_classes_in_signature()) return "unloaded signature classes"; |
|
238 |
||
239 |
if (callee_method->should_inline()) { |
|
240 |
// ignore heuristic controls on inlining |
|
241 |
return NULL; |
|
242 |
} |
|
243 |
||
244 |
// Now perform checks which are heuristic |
|
245 |
||
6453 | 246 |
if( callee_method->has_compiled_code() && callee_method->instructions_size(CompLevel_full_optimization) > InlineSmallCode ) |
1 | 247 |
return "already compiled into a big method"; |
248 |
||
249 |
// don't inline exception code unless the top method belongs to an |
|
250 |
// exception class |
|
251 |
if (caller_tree() != NULL && |
|
252 |
callee_method->holder()->is_subclass_of(C->env()->Throwable_klass())) { |
|
253 |
const InlineTree *top = this; |
|
254 |
while (top->caller_tree() != NULL) top = top->caller_tree(); |
|
255 |
ciInstanceKlass* k = top->method()->holder(); |
|
256 |
if (!k->is_subclass_of(C->env()->Throwable_klass())) |
|
257 |
return "exception method"; |
|
258 |
} |
|
259 |
||
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260 |
if (callee_method->should_not_inline()) { |
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261 |
return "disallowed by CompilerOracle"; |
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|
262 |
} |
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|
263 |
|
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|
264 |
if (UseStringCache) { |
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|
265 |
// Do not inline StringCache::profile() method used only at the beginning. |
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|
266 |
if (callee_method->name() == ciSymbol::profile_name() && |
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|
267 |
callee_method->holder()->name() == ciSymbol::java_lang_StringCache()) { |
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|
268 |
return "profiling method"; |
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|
269 |
} |
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|
270 |
} |
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|
271 |
|
1 | 272 |
// use frequency-based objections only for non-trivial methods |
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273 |
if (callee_method->code_size_for_inlining() <= MaxTrivialSize) return NULL; |
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|
274 |
|
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|
275 |
// don't use counts with -Xcomp or CTW |
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|
276 |
if (UseInterpreter && !CompileTheWorld) { |
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|
277 |
|
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|
278 |
if (!callee_method->has_compiled_code() && |
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|
279 |
!callee_method->was_executed_more_than(0)) { |
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|
280 |
return "never executed"; |
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|
281 |
} |
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|
282 |
|
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|
283 |
if (is_init_with_ea(callee_method, caller_method, C)) { |
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|
284 |
|
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|
285 |
// Escape Analysis: inline all executed constructors |
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|
286 |
|
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|
287 |
} else if (!callee_method->was_executed_more_than(MIN2(MinInliningThreshold, |
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|
288 |
CompileThreshold >> 1))) { |
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|
289 |
return "executed < MinInliningThreshold times"; |
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|
290 |
} |
1 | 291 |
} |
292 |
||
293 |
return NULL; |
|
294 |
} |
|
295 |
||
296 |
//-----------------------------try_to_inline----------------------------------- |
|
297 |
// return NULL if ok, reason for not inlining otherwise |
|
298 |
// Relocated from "InliningClosure::try_to_inline" |
|
214
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|
299 |
const char* InlineTree::try_to_inline(ciMethod* callee_method, ciMethod* caller_method, int caller_bci, ciCallProfile& profile, WarmCallInfo* wci_result) { |
1 | 300 |
|
301 |
// Old algorithm had funny accumulating BC-size counters |
|
302 |
if (UseOldInlining && ClipInlining |
|
303 |
&& (int)count_inline_bcs() >= DesiredMethodLimit) { |
|
304 |
return "size > DesiredMethodLimit"; |
|
305 |
} |
|
306 |
||
307 |
const char *msg = NULL; |
|
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|
308 |
msg = should_inline(callee_method, caller_method, caller_bci, profile, wci_result); |
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|
309 |
if (msg != NULL) |
214
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|
310 |
return msg; |
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|
311 |
|
92a7a2841a16
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changeset
|
312 |
msg = should_not_inline(callee_method, caller_method, wci_result); |
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|
313 |
if (msg != NULL) |
214
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|
314 |
return msg; |
1 | 315 |
|
4586
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|
316 |
if (InlineAccessors && callee_method->is_accessor()) { |
f1c484fca023
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|
317 |
// accessor methods are not subject to any of the following limits. |
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|
318 |
return NULL; |
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changeset
|
319 |
} |
1 | 320 |
|
321 |
// suppress a few checks for accessors and trivial methods |
|
10506
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|
322 |
if (callee_method->code_size_for_inlining() > MaxTrivialSize) { |
214
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|
323 |
|
1 | 324 |
// don't inline into giant methods |
214
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|
325 |
if (C->unique() > (uint)NodeCountInliningCutoff) { |
c5d9b4456687
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|
326 |
return "NodeCountInliningCutoff"; |
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|
327 |
} |
1 | 328 |
|
214
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|
329 |
if ((!UseInterpreter || CompileTheWorld) && |
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|
330 |
is_init_with_ea(callee_method, caller_method, C)) { |
c5d9b4456687
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|
331 |
|
c5d9b4456687
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|
332 |
// Escape Analysis stress testing when running Xcomp or CTW: |
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|
333 |
// inline constructors even if they are not reached. |
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|
334 |
|
c5d9b4456687
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|
335 |
} else if (profile.count() == 0) { |
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|
336 |
// don't inline unreached call sites |
c5d9b4456687
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|
337 |
return "call site not reached"; |
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|
338 |
} |
1 | 339 |
} |
340 |
||
4586
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|
341 |
if (!C->do_inlining() && InlineAccessors) { |
214
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|
342 |
return "not an accessor"; |
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|
343 |
} |
10007
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7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
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|
344 |
if (inline_level() > _max_inline_level) { |
214
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|
345 |
return "inlining too deep"; |
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diff
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|
346 |
} |
8872
36680c58660e
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changeset
|
347 |
|
9435
b16821523fe3
6552561: MaxRecursiveInlineLevel flag doesn't operate correctly
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changeset
|
348 |
// detect direct and indirect recursive inlining |
b16821523fe3
6552561: MaxRecursiveInlineLevel flag doesn't operate correctly
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diff
changeset
|
349 |
{ |
b16821523fe3
6552561: MaxRecursiveInlineLevel flag doesn't operate correctly
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changeset
|
350 |
// count the current method and the callee |
b16821523fe3
6552561: MaxRecursiveInlineLevel flag doesn't operate correctly
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changeset
|
351 |
int inline_level = (method() == callee_method) ? 1 : 0; |
b16821523fe3
6552561: MaxRecursiveInlineLevel flag doesn't operate correctly
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changeset
|
352 |
if (inline_level > MaxRecursiveInlineLevel) |
b16821523fe3
6552561: MaxRecursiveInlineLevel flag doesn't operate correctly
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changeset
|
353 |
return "recursively inlining too deep"; |
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6552561: MaxRecursiveInlineLevel flag doesn't operate correctly
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changeset
|
354 |
// count callers of current method and callee |
8872
36680c58660e
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|
355 |
JVMState* jvms = caller_jvms(); |
36680c58660e
7022998: JSR 292 recursive method handle calls inline themselves infinitely
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|
356 |
while (jvms != NULL && jvms->has_method()) { |
36680c58660e
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|
357 |
if (jvms->method() == callee_method) { |
36680c58660e
7022998: JSR 292 recursive method handle calls inline themselves infinitely
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|
358 |
inline_level++; |
36680c58660e
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changeset
|
359 |
if (inline_level > MaxRecursiveInlineLevel) |
36680c58660e
7022998: JSR 292 recursive method handle calls inline themselves infinitely
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|
360 |
return "recursively inlining too deep"; |
36680c58660e
7022998: JSR 292 recursive method handle calls inline themselves infinitely
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diff
changeset
|
361 |
} |
36680c58660e
7022998: JSR 292 recursive method handle calls inline themselves infinitely
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changeset
|
362 |
jvms = jvms->caller(); |
36680c58660e
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changeset
|
363 |
} |
36680c58660e
7022998: JSR 292 recursive method handle calls inline themselves infinitely
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changeset
|
364 |
} |
36680c58660e
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
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diff
changeset
|
365 |
|
10506
575ad9bccff5
7078382: JSR 292: don't count method handle adapters against inlining budgets
twisti
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diff
changeset
|
366 |
int size = callee_method->code_size_for_inlining(); |
1 | 367 |
|
368 |
if (UseOldInlining && ClipInlining |
|
369 |
&& (int)count_inline_bcs() + size >= DesiredMethodLimit) { |
|
370 |
return "size > DesiredMethodLimit"; |
|
371 |
} |
|
372 |
||
373 |
// ok, inline this method |
|
374 |
return NULL; |
|
375 |
} |
|
376 |
||
377 |
//------------------------------pass_initial_checks---------------------------- |
|
378 |
bool pass_initial_checks(ciMethod* caller_method, int caller_bci, ciMethod* callee_method) { |
|
379 |
ciInstanceKlass *callee_holder = callee_method ? callee_method->holder() : NULL; |
|
380 |
// Check if a callee_method was suggested |
|
381 |
if( callee_method == NULL ) return false; |
|
382 |
// Check if klass of callee_method is loaded |
|
383 |
if( !callee_holder->is_loaded() ) return false; |
|
384 |
if( !callee_holder->is_initialized() ) return false; |
|
385 |
if( !UseInterpreter || CompileTheWorld /* running Xcomp or CTW */ ) { |
|
386 |
// Checks that constant pool's call site has been visited |
|
387 |
// stricter than callee_holder->is_initialized() |
|
388 |
ciBytecodeStream iter(caller_method); |
|
389 |
iter.force_bci(caller_bci); |
|
390 |
Bytecodes::Code call_bc = iter.cur_bc(); |
|
4566
b363f6ef4068
6829187: compiler optimizations required for JSR 292
twisti
parents:
3603
diff
changeset
|
391 |
// An invokedynamic instruction does not have a klass. |
b363f6ef4068
6829187: compiler optimizations required for JSR 292
twisti
parents:
3603
diff
changeset
|
392 |
if (call_bc != Bytecodes::_invokedynamic) { |
5688 | 393 |
int index = iter.get_index_u2_cpcache(); |
4566
b363f6ef4068
6829187: compiler optimizations required for JSR 292
twisti
parents:
3603
diff
changeset
|
394 |
if (!caller_method->is_klass_loaded(index, true)) { |
b363f6ef4068
6829187: compiler optimizations required for JSR 292
twisti
parents:
3603
diff
changeset
|
395 |
return false; |
b363f6ef4068
6829187: compiler optimizations required for JSR 292
twisti
parents:
3603
diff
changeset
|
396 |
} |
b363f6ef4068
6829187: compiler optimizations required for JSR 292
twisti
parents:
3603
diff
changeset
|
397 |
// Try to do constant pool resolution if running Xcomp |
b363f6ef4068
6829187: compiler optimizations required for JSR 292
twisti
parents:
3603
diff
changeset
|
398 |
if( !caller_method->check_call(index, call_bc == Bytecodes::_invokestatic) ) { |
b363f6ef4068
6829187: compiler optimizations required for JSR 292
twisti
parents:
3603
diff
changeset
|
399 |
return false; |
b363f6ef4068
6829187: compiler optimizations required for JSR 292
twisti
parents:
3603
diff
changeset
|
400 |
} |
1 | 401 |
} |
402 |
} |
|
403 |
// We will attempt to see if a class/field/etc got properly loaded. If it |
|
404 |
// did not, it may attempt to throw an exception during our probing. Catch |
|
405 |
// and ignore such exceptions and do not attempt to compile the method. |
|
406 |
if( callee_method->should_exclude() ) return false; |
|
407 |
||
408 |
return true; |
|
409 |
} |
|
410 |
||
10509
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
411 |
//------------------------------check_can_parse-------------------------------- |
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
412 |
const char* InlineTree::check_can_parse(ciMethod* callee) { |
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
413 |
// Certain methods cannot be parsed at all: |
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
414 |
if ( callee->is_native()) return "native method"; |
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
415 |
if (!callee->can_be_compiled()) return "not compilable (disabled)"; |
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
416 |
if (!callee->has_balanced_monitors()) return "not compilable (unbalanced monitors)"; |
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
417 |
if ( callee->get_flow_analysis()->failing()) return "not compilable (flow analysis failed)"; |
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
418 |
return NULL; |
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
419 |
} |
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
420 |
|
1 | 421 |
//------------------------------print_inlining--------------------------------- |
422 |
// Really, the failure_msg can be a success message also. |
|
8872
36680c58660e
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
8676
diff
changeset
|
423 |
void InlineTree::print_inlining(ciMethod* callee_method, int caller_bci, const char* failure_msg) const { |
10007
43d4a6542551
7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents:
9633
diff
changeset
|
424 |
CompileTask::print_inlining(callee_method, inline_level(), caller_bci, failure_msg ? failure_msg : "inline"); |
8872
36680c58660e
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
8676
diff
changeset
|
425 |
if (callee_method == NULL) tty->print(" callee not monotonic or profiled"); |
36680c58660e
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
8676
diff
changeset
|
426 |
if (Verbose && callee_method) { |
1 | 427 |
const InlineTree *top = this; |
428 |
while( top->caller_tree() != NULL ) { top = top->caller_tree(); } |
|
429 |
tty->print(" bcs: %d+%d invoked: %d", top->count_inline_bcs(), callee_method->code_size(), callee_method->interpreter_invocation_count()); |
|
430 |
} |
|
431 |
} |
|
432 |
||
433 |
//------------------------------ok_to_inline----------------------------------- |
|
434 |
WarmCallInfo* InlineTree::ok_to_inline(ciMethod* callee_method, JVMState* jvms, ciCallProfile& profile, WarmCallInfo* initial_wci) { |
|
435 |
assert(callee_method != NULL, "caller checks for optimized virtual!"); |
|
436 |
#ifdef ASSERT |
|
437 |
// Make sure the incoming jvms has the same information content as me. |
|
438 |
// This means that we can eventually make this whole class AllStatic. |
|
439 |
if (jvms->caller() == NULL) { |
|
440 |
assert(_caller_jvms == NULL, "redundant instance state"); |
|
441 |
} else { |
|
442 |
assert(_caller_jvms->same_calls_as(jvms->caller()), "redundant instance state"); |
|
443 |
} |
|
444 |
assert(_method == jvms->method(), "redundant instance state"); |
|
445 |
#endif |
|
446 |
const char *failure_msg = NULL; |
|
447 |
int caller_bci = jvms->bci(); |
|
448 |
ciMethod *caller_method = jvms->method(); |
|
449 |
||
10509
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
450 |
// Do some initial checks. |
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
451 |
if (!pass_initial_checks(caller_method, caller_bci, callee_method)) { |
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
452 |
if (PrintInlining) { |
1 | 453 |
failure_msg = "failed_initial_checks"; |
10509
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
454 |
print_inlining(callee_method, caller_bci, failure_msg); |
1 | 455 |
} |
456 |
return NULL; |
|
457 |
} |
|
458 |
||
10509
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
459 |
// Do some parse checks. |
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
460 |
failure_msg = check_can_parse(callee_method); |
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
461 |
if (failure_msg != NULL) { |
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
462 |
if (PrintInlining) print_inlining(callee_method, caller_bci, failure_msg); |
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
463 |
return NULL; |
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
464 |
} |
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
465 |
|
1 | 466 |
// Check if inlining policy says no. |
467 |
WarmCallInfo wci = *(initial_wci); |
|
214
c5d9b4456687
6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents:
1
diff
changeset
|
468 |
failure_msg = try_to_inline(callee_method, caller_method, caller_bci, profile, &wci); |
1 | 469 |
if (failure_msg != NULL && C->log() != NULL) { |
470 |
C->log()->begin_elem("inline_fail reason='"); |
|
471 |
C->log()->text("%s", failure_msg); |
|
472 |
C->log()->end_elem("'"); |
|
473 |
} |
|
474 |
||
475 |
#ifndef PRODUCT |
|
476 |
if (UseOldInlining && InlineWarmCalls |
|
477 |
&& (PrintOpto || PrintOptoInlining || PrintInlining)) { |
|
478 |
bool cold = wci.is_cold(); |
|
479 |
bool hot = !cold && wci.is_hot(); |
|
480 |
bool old_cold = (failure_msg != NULL); |
|
481 |
if (old_cold != cold || (Verbose || WizardMode)) { |
|
482 |
tty->print(" OldInlining= %4s : %s\n WCI=", |
|
483 |
old_cold ? "cold" : "hot", failure_msg ? failure_msg : "OK"); |
|
484 |
wci.print(); |
|
485 |
} |
|
486 |
} |
|
487 |
#endif |
|
488 |
if (UseOldInlining) { |
|
489 |
if (failure_msg == NULL) |
|
490 |
wci = *(WarmCallInfo::always_hot()); |
|
491 |
else |
|
492 |
wci = *(WarmCallInfo::always_cold()); |
|
493 |
} |
|
494 |
if (!InlineWarmCalls) { |
|
495 |
if (!wci.is_cold() && !wci.is_hot()) { |
|
496 |
// Do not inline the warm calls. |
|
497 |
wci = *(WarmCallInfo::always_cold()); |
|
498 |
} |
|
499 |
} |
|
500 |
||
501 |
if (!wci.is_cold()) { |
|
502 |
// In -UseOldInlining, the failure_msg may also be a success message. |
|
503 |
if (failure_msg == NULL) failure_msg = "inline (hot)"; |
|
504 |
||
505 |
// Inline! |
|
10509
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
506 |
if (PrintInlining) print_inlining(callee_method, caller_bci, failure_msg); |
1 | 507 |
if (UseOldInlining) |
508 |
build_inline_tree_for_callee(callee_method, jvms, caller_bci); |
|
509 |
if (InlineWarmCalls && !wci.is_hot()) |
|
510 |
return new (C) WarmCallInfo(wci); // copy to heap |
|
511 |
return WarmCallInfo::always_hot(); |
|
512 |
} |
|
513 |
||
514 |
// Do not inline |
|
515 |
if (failure_msg == NULL) failure_msg = "too cold to inline"; |
|
10509
43d670e5701e
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
10506
diff
changeset
|
516 |
if (PrintInlining) print_inlining(callee_method, caller_bci, failure_msg); |
1 | 517 |
return NULL; |
518 |
} |
|
519 |
||
520 |
//------------------------------compute_callee_frequency----------------------- |
|
521 |
float InlineTree::compute_callee_frequency( int caller_bci ) const { |
|
522 |
int count = method()->interpreter_call_site_count(caller_bci); |
|
523 |
int invcnt = method()->interpreter_invocation_count(); |
|
524 |
float freq = (float)count/(float)invcnt; |
|
525 |
// Call-site count / interpreter invocation count, scaled recursively. |
|
526 |
// Always between 0.0 and 1.0. Represents the percentage of the method's |
|
527 |
// total execution time used at this call site. |
|
528 |
||
529 |
return freq; |
|
530 |
} |
|
531 |
||
532 |
//------------------------------build_inline_tree_for_callee------------------- |
|
533 |
InlineTree *InlineTree::build_inline_tree_for_callee( ciMethod* callee_method, JVMState* caller_jvms, int caller_bci) { |
|
534 |
float recur_frequency = _site_invoke_ratio * compute_callee_frequency(caller_bci); |
|
535 |
// Attempt inlining. |
|
536 |
InlineTree* old_ilt = callee_at(caller_bci, callee_method); |
|
537 |
if (old_ilt != NULL) { |
|
538 |
return old_ilt; |
|
539 |
} |
|
10007
43d4a6542551
7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents:
9633
diff
changeset
|
540 |
int max_inline_level_adjust = 0; |
4586
f1c484fca023
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
4567
diff
changeset
|
541 |
if (caller_jvms->method() != NULL) { |
f1c484fca023
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
4567
diff
changeset
|
542 |
if (caller_jvms->method()->is_method_handle_adapter()) |
10007
43d4a6542551
7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents:
9633
diff
changeset
|
543 |
max_inline_level_adjust += 1; // don't count actions in MH or indy adapter frames |
4586
f1c484fca023
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
4567
diff
changeset
|
544 |
else if (callee_method->is_method_handle_invoke()) { |
10007
43d4a6542551
7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents:
9633
diff
changeset
|
545 |
max_inline_level_adjust += 1; // don't count method handle calls from java.lang.invoke implem |
4586
f1c484fca023
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
4567
diff
changeset
|
546 |
} |
10007
43d4a6542551
7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents:
9633
diff
changeset
|
547 |
if (max_inline_level_adjust != 0 && PrintInlining && (Verbose || WizardMode)) { |
43d4a6542551
7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents:
9633
diff
changeset
|
548 |
CompileTask::print_inline_indent(inline_level()); |
9633
92a7a2841a16
7042122: JSR 292: adjust various inline thresholds for JSR 292 API methods and method handle adapters
twisti
parents:
9446
diff
changeset
|
549 |
tty->print_cr(" \\-> discounting inline depth"); |
4586
f1c484fca023
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
4567
diff
changeset
|
550 |
} |
10007
43d4a6542551
7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents:
9633
diff
changeset
|
551 |
if (max_inline_level_adjust != 0 && C->log()) { |
4586
f1c484fca023
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
4567
diff
changeset
|
552 |
int id1 = C->log()->identify(caller_jvms->method()); |
f1c484fca023
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
4567
diff
changeset
|
553 |
int id2 = C->log()->identify(callee_method); |
10007
43d4a6542551
7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents:
9633
diff
changeset
|
554 |
C->log()->elem("inline_level_discount caller='%d' callee='%d'", id1, id2); |
4586
f1c484fca023
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
4567
diff
changeset
|
555 |
} |
f1c484fca023
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
4567
diff
changeset
|
556 |
} |
10007
43d4a6542551
7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents:
9633
diff
changeset
|
557 |
InlineTree* ilt = new InlineTree(C, this, callee_method, caller_jvms, caller_bci, recur_frequency, _max_inline_level + max_inline_level_adjust); |
43d4a6542551
7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents:
9633
diff
changeset
|
558 |
_subtrees.append(ilt); |
1 | 559 |
|
560 |
NOT_PRODUCT( _count_inlines += 1; ) |
|
561 |
||
562 |
return ilt; |
|
563 |
} |
|
564 |
||
565 |
||
566 |
//---------------------------------------callee_at----------------------------- |
|
567 |
InlineTree *InlineTree::callee_at(int bci, ciMethod* callee) const { |
|
568 |
for (int i = 0; i < _subtrees.length(); i++) { |
|
569 |
InlineTree* sub = _subtrees.at(i); |
|
570 |
if (sub->caller_bci() == bci && callee == sub->method()) { |
|
571 |
return sub; |
|
572 |
} |
|
573 |
} |
|
574 |
return NULL; |
|
575 |
} |
|
576 |
||
577 |
||
578 |
//------------------------------build_inline_tree_root------------------------- |
|
579 |
InlineTree *InlineTree::build_inline_tree_root() { |
|
580 |
Compile* C = Compile::current(); |
|
581 |
||
582 |
// Root of inline tree |
|
10007
43d4a6542551
7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents:
9633
diff
changeset
|
583 |
InlineTree* ilt = new InlineTree(C, NULL, C->method(), NULL, -1, 1.0F, MaxInlineLevel); |
1 | 584 |
|
585 |
return ilt; |
|
586 |
} |
|
587 |
||
588 |
||
589 |
//-------------------------find_subtree_from_root----------------------------- |
|
590 |
// Given a jvms, which determines a call chain from the root method, |
|
591 |
// find the corresponding inline tree. |
|
592 |
// Note: This method will be removed or replaced as InlineTree goes away. |
|
593 |
InlineTree* InlineTree::find_subtree_from_root(InlineTree* root, JVMState* jvms, ciMethod* callee, bool create_if_not_found) { |
|
594 |
InlineTree* iltp = root; |
|
595 |
uint depth = jvms && jvms->has_method() ? jvms->depth() : 0; |
|
596 |
for (uint d = 1; d <= depth; d++) { |
|
597 |
JVMState* jvmsp = jvms->of_depth(d); |
|
598 |
// Select the corresponding subtree for this bci. |
|
599 |
assert(jvmsp->method() == iltp->method(), "tree still in sync"); |
|
600 |
ciMethod* d_callee = (d == depth) ? callee : jvms->of_depth(d+1)->method(); |
|
601 |
InlineTree* sub = iltp->callee_at(jvmsp->bci(), d_callee); |
|
602 |
if (!sub) { |
|
603 |
if (create_if_not_found && d == depth) { |
|
604 |
return iltp->build_inline_tree_for_callee(d_callee, jvmsp, jvmsp->bci()); |
|
605 |
} |
|
606 |
assert(sub != NULL, "should be a sub-ilt here"); |
|
607 |
return NULL; |
|
608 |
} |
|
609 |
iltp = sub; |
|
610 |
} |
|
611 |
return iltp; |
|
612 |
} |
|
10547 | 613 |
|
614 |
||
615 |
||
616 |
#ifndef PRODUCT |
|
617 |
void InlineTree::print_impl(outputStream* st, int indent) const { |
|
618 |
for (int i = 0; i < indent; i++) st->print(" "); |
|
619 |
st->print(" @ %d ", caller_bci()); |
|
620 |
method()->print_short_name(st); |
|
621 |
st->cr(); |
|
622 |
||
623 |
for (int i = 0 ; i < _subtrees.length(); i++) { |
|
624 |
_subtrees.at(i)->print_impl(st, indent + 2); |
|
625 |
} |
|
626 |
} |
|
627 |
||
628 |
void InlineTree::print_value_on(outputStream* st) const { |
|
629 |
print_impl(st, 2); |
|
630 |
} |
|
631 |
#endif |