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comparison src/share/vm/opto/parseHelper.cpp @ 10105:aeaca88565e6

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8010862: The Method counter fields used for profiling can be allocated lazily. Summary: Allocate the method's profiling related metadata until they are needed. Reviewed-by: coleenp, roland
author jiangli
date Tue, 09 Apr 2013 17:17:41 -0400
parents beebba0acc11
children 6f3fd5150b67
comparison
equal deleted inserted replaced
9055:dcdeb150988c 10105:aeaca88565e6
1 /* 1 /*
2 * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
335 //----------------------increment_and_test_invocation_counter------------------- 335 //----------------------increment_and_test_invocation_counter-------------------
336 void Parse::increment_and_test_invocation_counter(int limit) { 336 void Parse::increment_and_test_invocation_counter(int limit) {
337 if (!count_invocations()) return; 337 if (!count_invocations()) return;
338 338
339 // Get the Method* node. 339 // Get the Method* node.
340 const TypePtr* adr_type = TypeMetadataPtr::make(method()); 340 ciMethod* m = method();
341 Node *method_node = makecon(adr_type); 341 address counters_adr = m->ensure_method_counters();
342 342
343 // Load the interpreter_invocation_counter from the Method*. 343 Node* ctrl = control();
344 int offset = Method::interpreter_invocation_counter_offset_in_bytes(); 344 const TypePtr* adr_type = TypeRawPtr::make(counters_adr);
345 Node* adr_node = basic_plus_adr(method_node, method_node, offset); 345 Node *counters_node = makecon(adr_type);
346 Node* cnt = make_load(NULL, adr_node, TypeInt::INT, T_INT, adr_type); 346 Node* adr_iic_node = basic_plus_adr(counters_node, counters_node,
347 MethodCounters::interpreter_invocation_counter_offset_in_bytes());
348 Node* cnt = make_load(ctrl, adr_iic_node, TypeInt::INT, T_INT, adr_type);
347 349
348 test_counter_against_threshold(cnt, limit); 350 test_counter_against_threshold(cnt, limit);
349 351
350 // Add one to the counter and store 352 // Add one to the counter and store
351 Node* incr = _gvn.transform(new (C) AddINode(cnt, _gvn.intcon(1))); 353 Node* incr = _gvn.transform(new (C) AddINode(cnt, _gvn.intcon(1)));
352 store_to_memory( NULL, adr_node, incr, T_INT, adr_type ); 354 store_to_memory( ctrl, adr_iic_node, incr, T_INT, adr_type );
353 } 355 }
354 356
355 //----------------------------method_data_addressing--------------------------- 357 //----------------------------method_data_addressing---------------------------
356 Node* Parse::method_data_addressing(ciMethodData* md, ciProfileData* data, ByteSize counter_offset, Node* idx, uint stride) { 358 Node* Parse::method_data_addressing(ciMethodData* md, ciProfileData* data, ByteSize counter_offset, Node* idx, uint stride) {
357 // Get offset within MethodData* of the data array 359 // Get offset within MethodData* of the data array