Mercurial > hg > truffle
diff src/share/vm/opto/parseHelper.cpp @ 10105:aeaca88565e6
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 |
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--- a/src/share/vm/opto/parseHelper.cpp Thu Apr 04 21:15:43 2013 -0700 +++ b/src/share/vm/opto/parseHelper.cpp Tue Apr 09 17:17:41 2013 -0400 @@ -1,5 +1,5 @@ /* - * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 1998, 2013, Oracle and/or its affiliates. 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 @@ -337,19 +337,21 @@ if (!count_invocations()) return; // Get the Method* node. - const TypePtr* adr_type = TypeMetadataPtr::make(method()); - Node *method_node = makecon(adr_type); + ciMethod* m = method(); + address counters_adr = m->ensure_method_counters(); - // Load the interpreter_invocation_counter from the Method*. - int offset = Method::interpreter_invocation_counter_offset_in_bytes(); - Node* adr_node = basic_plus_adr(method_node, method_node, offset); - Node* cnt = make_load(NULL, adr_node, TypeInt::INT, T_INT, adr_type); + Node* ctrl = control(); + const TypePtr* adr_type = TypeRawPtr::make(counters_adr); + Node *counters_node = makecon(adr_type); + Node* adr_iic_node = basic_plus_adr(counters_node, counters_node, + MethodCounters::interpreter_invocation_counter_offset_in_bytes()); + Node* cnt = make_load(ctrl, adr_iic_node, TypeInt::INT, T_INT, adr_type); test_counter_against_threshold(cnt, limit); // Add one to the counter and store Node* incr = _gvn.transform(new (C) AddINode(cnt, _gvn.intcon(1))); - store_to_memory( NULL, adr_node, incr, T_INT, adr_type ); + store_to_memory( ctrl, adr_iic_node, incr, T_INT, adr_type ); } //----------------------------method_data_addressing---------------------------