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src/cpu/zero/vm/compiledIC_zero.cpp@a9becfeecd1b (annotated)

src/cpu/zero/vm/compiledIC_zero.cpp

Wed, 22 Jan 2014 17:42:23 -0800

author

kvn

date

Wed, 22 Jan 2014 17:42:23 -0800

changeset 6503

a9becfeecd1b

parent 0

f90c822e73f8

child 6985

c64b6b0c40c8

permissions

-rw-r--r--

Merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*
aoqi@0	23	*/
aoqi@0	24
aoqi@0	25	#include "precompiled.hpp"
aoqi@0	26	#include "classfile/systemDictionary.hpp"
aoqi@0	27	#include "code/codeCache.hpp"
aoqi@0	28	#include "code/compiledIC.hpp"
aoqi@0	29	#include "code/icBuffer.hpp"
aoqi@0	30	#include "code/nmethod.hpp"
aoqi@0	31	#include "code/vtableStubs.hpp"
aoqi@0	32	#include "interpreter/interpreter.hpp"
aoqi@0	33	#include "interpreter/linkResolver.hpp"
aoqi@0	34	#include "memory/metadataFactory.hpp"
aoqi@0	35	#include "memory/oopFactory.hpp"
aoqi@0	36	#include "oops/method.hpp"
aoqi@0	37	#include "oops/oop.inline.hpp"
aoqi@0	38	#include "oops/symbol.hpp"
aoqi@0	39	#include "runtime/icache.hpp"
aoqi@0	40	#include "runtime/sharedRuntime.hpp"
aoqi@0	41	#include "runtime/stubRoutines.hpp"
aoqi@0	42	#include "utilities/events.hpp"
aoqi@0	43
aoqi@0	44
aoqi@0	45	// Release the CompiledICHolder* associated with this call site is there is one.
aoqi@0	46	void CompiledIC::cleanup_call_site(virtual_call_Relocation* call_site) {
aoqi@0	47	// This call site might have become stale so inspect it carefully.
aoqi@0	48	NativeCall* call = nativeCall_at(call_site->addr());
aoqi@0	49	if (is_icholder_entry(call->destination())) {
aoqi@0	50	NativeMovConstReg* value = nativeMovConstReg_at(call_site->cached_value());
aoqi@0	51	InlineCacheBuffer::queue_for_release((CompiledICHolder*)value->data());
aoqi@0	52	}
aoqi@0	53	}
aoqi@0	54
aoqi@0	55	bool CompiledIC::is_icholder_call_site(virtual_call_Relocation* call_site) {
aoqi@0	56	// This call site might have become stale so inspect it carefully.
aoqi@0	57	NativeCall* call = nativeCall_at(call_site->addr());
aoqi@0	58	return is_icholder_entry(call->destination());
aoqi@0	59	}
aoqi@0	60
aoqi@0	61	//-----------------------------------------------------------------------------
aoqi@0	62	// High-level access to an inline cache. Guaranteed to be MT-safe.
aoqi@0	63
aoqi@0	64	CompiledIC::CompiledIC(nmethod* nm, NativeCall* call)
aoqi@0	65	: _ic_call(call)
aoqi@0	66	{
aoqi@0	67	address ic_call = call->instruction_address();
aoqi@0	68
aoqi@0	69	assert(ic_call != NULL, "ic_call address must be set");
aoqi@0	70	assert(nm != NULL, "must pass nmethod");
aoqi@0	71	assert(nm->contains(ic_call), "must be in nmethod");
aoqi@0	72
aoqi@0	73	// Search for the ic_call at the given address.
aoqi@0	74	RelocIterator iter(nm, ic_call, ic_call+1);
aoqi@0	75	bool ret = iter.next();
aoqi@0	76	assert(ret == true, "relocInfo must exist at this address");
aoqi@0	77	assert(iter.addr() == ic_call, "must find ic_call");
aoqi@0	78	if (iter.type() == relocInfo::virtual_call_type) {
aoqi@0	79	virtual_call_Relocation* r = iter.virtual_call_reloc();
aoqi@0	80	_is_optimized = false;
aoqi@0	81	_value = nativeMovConstReg_at(r->cached_value());
aoqi@0	82	} else {
aoqi@0	83	assert(iter.type() == relocInfo::opt_virtual_call_type, "must be a virtual call");
aoqi@0	84	_is_optimized = true;
aoqi@0	85	_value = NULL;
aoqi@0	86	}
aoqi@0	87	}
aoqi@0	88
aoqi@0	89	// ----------------------------------------------------------------------------
aoqi@0	90
aoqi@0	91	void CompiledStaticCall::emit_to_interp_stub(CodeBuffer &cbuf) {
aoqi@0	92	ShouldNotReachHere(); // Only needed for COMPILER2.
aoqi@0	93	}
aoqi@0	94
aoqi@0	95	int CompiledStaticCall::to_interp_stub_size() {
aoqi@0	96	ShouldNotReachHere(); // Only needed for COMPILER2.
aoqi@0	97	return 0;
aoqi@0	98	}
aoqi@0	99
aoqi@0	100	// Relocation entries for call stub, compiled java to interpreter.
aoqi@0	101	int CompiledStaticCall::reloc_to_interp_stub() {
aoqi@0	102	ShouldNotReachHere(); // Only needed for COMPILER2.
aoqi@0	103	return 0;
aoqi@0	104	}
aoqi@0	105
aoqi@0	106	void CompiledStaticCall::set_to_interpreted(methodHandle callee, address entry) {
aoqi@0	107	ShouldNotReachHere(); // Only needed for COMPILER2.
aoqi@0	108	}
aoqi@0	109
aoqi@0	110	void CompiledStaticCall::set_stub_to_clean(static_stub_Relocation* static_stub) {
aoqi@0	111	ShouldNotReachHere(); // Only needed for COMPILER2.
aoqi@0	112	}
aoqi@0	113
aoqi@0	114	//-----------------------------------------------------------------------------
aoqi@0	115	// Non-product mode code.
aoqi@0	116	#ifndef PRODUCT
aoqi@0	117
aoqi@0	118	void CompiledStaticCall::verify() {
aoqi@0	119	ShouldNotReachHere(); // Only needed for COMPILER2.
aoqi@0	120	}
aoqi@0	121
aoqi@0	122	#endif // !PRODUCT