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8010862: The Method counter fields used for profiling can be allocated lazily

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Allocate the method's profiling related metadata until they are needed.

Reviewed-by: coleenp, roland
This commit is contained in:
Jiangli Zhou 2013-04-09 17:17:41 -04:00
parent 0afa77628c
commit 56370657b9
34 changed files with 773 additions and 295 deletions
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13
hotspot/src/share/vm/interpreter/interpreterRuntime.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 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
@ -454,7 +454,7 @@ IRT_ENTRY(address, InterpreterRuntime::exception_handler_for_exception(JavaThrea
continuation = Interpreter::remove_activation_entry();
#endif
// Count this for compilation purposes
h_method->interpreter_throwout_increment();
h_method->interpreter_throwout_increment(THREAD);
} else {
// handler in this method => change bci/bcp to handler bci/bcp and continue there
handler_pc = h_method->code_base() + handler_bci;
@ -908,6 +908,15 @@ IRT_ENTRY(void, InterpreterRuntime::update_mdp_for_ret(JavaThread* thread, int r
fr.interpreter_frame_set_mdp(new_mdp);
IRT_END
IRT_ENTRY(MethodCounters*, InterpreterRuntime::build_method_counters(JavaThread* thread, Method* m))
MethodCounters* mcs = Method::build_method_counters(m, thread);
if (HAS_PENDING_EXCEPTION) {
assert((PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())), "we expect only an OOM error here");
CLEAR_PENDING_EXCEPTION;
}
return mcs;
IRT_END
IRT_ENTRY(void, InterpreterRuntime::at_safepoint(JavaThread* thread))
// We used to need an explict preserve_arguments here for invoke bytecodes. However,