Mercurial > hg > graal-compiler
view src/share/vm/c1/c1_MacroAssembler.hpp @ 2149:7e37af9d69ef
7011379: G1: overly long concurrent marking cycles
Summary: This changeset introduces filtering of SATB buffers at the point when they are about to be enqueued. If this filtering clears enough entries on each buffer, the buffer can then be re-used and not enqueued. This cuts down the number of SATB buffers that need to be processed by the concurrent marking threads.
Reviewed-by: johnc, ysr
author | tonyp |
---|---|
date | Wed, 19 Jan 2011 09:35:17 -0500 |
parents | f95d63e2154a |
children | b92c45f2bc75 |
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/* * Copyright (c) 2000, 2010, 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 * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_C1_C1_MACROASSEMBLER_HPP #define SHARE_VM_C1_C1_MACROASSEMBLER_HPP #include "asm/assembler.hpp" #ifdef TARGET_ARCH_x86 # include "assembler_x86.inline.hpp" #endif #ifdef TARGET_ARCH_sparc # include "assembler_sparc.inline.hpp" #endif #ifdef TARGET_ARCH_zero # include "assembler_zero.inline.hpp" #endif class CodeEmitInfo; class C1_MacroAssembler: public MacroAssembler { public: // creation C1_MacroAssembler(CodeBuffer* code) : MacroAssembler(code) { pd_init(); } //---------------------------------------------------- void explicit_null_check(Register base); void inline_cache_check(Register receiver, Register iCache); void build_frame(int frame_size_in_bytes); void remove_frame(int frame_size_in_bytes); void unverified_entry(Register receiver, Register ic_klass); void verified_entry(); void verify_stack_oop(int offset) PRODUCT_RETURN; void verify_not_null_oop(Register r) PRODUCT_RETURN; #ifdef TARGET_ARCH_x86 # include "c1_MacroAssembler_x86.hpp" #endif #ifdef TARGET_ARCH_sparc # include "c1_MacroAssembler_sparc.hpp" #endif }; // A StubAssembler is a MacroAssembler w/ extra functionality for runtime // stubs. Currently it 'knows' some stub info. Eventually, the information // may be set automatically or can be asserted when using specialised // StubAssembler functions. class StubAssembler: public C1_MacroAssembler { private: const char* _name; bool _must_gc_arguments; int _frame_size; int _num_rt_args; int _stub_id; public: // creation StubAssembler(CodeBuffer* code, const char * name, int stub_id); void set_info(const char* name, bool must_gc_arguments); void set_frame_size(int size); void set_num_rt_args(int args); // accessors const char* name() const { return _name; } bool must_gc_arguments() const { return _must_gc_arguments; } int frame_size() const { return _frame_size; } int num_rt_args() const { return _num_rt_args; } int stub_id() const { return _stub_id; } // runtime calls (return offset of call to be used by GC map) int call_RT(Register oop_result1, Register oop_result2, address entry, int args_size = 0); int call_RT(Register oop_result1, Register oop_result2, address entry, Register arg1); int call_RT(Register oop_result1, Register oop_result2, address entry, Register arg1, Register arg2); int call_RT(Register oop_result1, Register oop_result2, address entry, Register arg1, Register arg2, Register arg3); }; #endif // SHARE_VM_C1_C1_MACROASSEMBLER_HPP