hotspot/src/share/vm/c1/c1_MacroAssembler.hpp
author twisti
Tue, 09 Mar 2010 20:16:19 +0100
changeset 5046 27e801a857cb
parent 1 489c9b5090e2
child 5547 f4b087cbb361
permissions -rw-r--r--
6919934: JSR 292 needs to support x86 C1 Summary: This implements JSR 292 support for C1 x86. Reviewed-by: never, jrose, kvn
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/*
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 * Copyright 2000-2010 Sun Microsystems, Inc.  All Rights Reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 *
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 */
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class CodeEmitInfo;
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class C1_MacroAssembler: public MacroAssembler {
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 public:
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  // creation
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  C1_MacroAssembler(CodeBuffer* code) : MacroAssembler(code) { pd_init(); }
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  //----------------------------------------------------
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  void explicit_null_check(Register base);
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  void inline_cache_check(Register receiver, Register iCache);
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  void build_frame(int frame_size_in_bytes);
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  void remove_frame(int frame_size_in_bytes);
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  void unverified_entry(Register receiver, Register ic_klass);
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  void verified_entry();
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  void verify_stack_oop(int offset) PRODUCT_RETURN;
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  void verify_not_null_oop(Register r)  PRODUCT_RETURN;
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#include "incls/_c1_MacroAssembler_pd.hpp.incl"
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};
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// A StubAssembler is a MacroAssembler w/ extra functionality for runtime
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// stubs. Currently it 'knows' some stub info. Eventually, the information
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// may be set automatically or can be asserted when using specialised
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// StubAssembler functions.
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class StubAssembler: public C1_MacroAssembler {
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 private:
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  const char* _name;
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  bool        _must_gc_arguments;
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  int         _frame_size;
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  int         _num_rt_args;
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  int         _stub_id;
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 public:
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  // creation
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  StubAssembler(CodeBuffer* code, const char * name, int stub_id);
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  void set_info(const char* name, bool must_gc_arguments);
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  void set_frame_size(int size);
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  void set_num_rt_args(int args);
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  // accessors
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  const char* name() const                       { return _name; }
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  bool  must_gc_arguments() const                { return _must_gc_arguments; }
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  int frame_size() const                         { return _frame_size; }
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  int num_rt_args() const                        { return _num_rt_args; }
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  int stub_id() const                            { return _stub_id; }
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  // runtime calls (return offset of call to be used by GC map)
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  int call_RT(Register oop_result1, Register oop_result2, address entry, int args_size = 0);
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  int call_RT(Register oop_result1, Register oop_result2, address entry, Register arg1);
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  int call_RT(Register oop_result1, Register oop_result2, address entry, Register arg1, Register arg2);
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  int call_RT(Register oop_result1, Register oop_result2, address entry, Register arg1, Register arg2, Register arg3);
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};