1 /*
   2  * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_C1_C1_MACROASSEMBLER_HPP
  26 #define SHARE_C1_C1_MACROASSEMBLER_HPP
  27 
  28 #include "asm/macroAssembler.hpp"
  29 #include "utilities/macros.hpp"
  30 
  31 class CodeEmitInfo;
  32 
  33 class C1_MacroAssembler: public MacroAssembler {
  34  public:
  35   // creation
  36   C1_MacroAssembler(CodeBuffer* code) : MacroAssembler(code) { pd_init(); }
  37 
  38   //----------------------------------------------------
  39   void explicit_null_check(Register base);
  40 
  41   void inline_cache_check(Register receiver, Register iCache);
  42   void build_frame(int frame_size_in_bytes, int bang_size_in_bytes);
  43   void remove_frame(int frame_size_in_bytes);
  44 
  45   void oopmap_metadata(CodeEmitInfo* info);
  46 
  47   void verified_entry();
  48   void verify_stack_oop(int offset) PRODUCT_RETURN;
  49   void verify_not_null_oop(Register r)  PRODUCT_RETURN;
  50 
  51 #include CPU_HEADER(c1_MacroAssembler)
  52 
  53 };
  54 
  55 
  56 
  57 // A StubAssembler is a MacroAssembler w/ extra functionality for runtime
  58 // stubs. Currently it 'knows' some stub info. Eventually, the information
  59 // may be set automatically or can be asserted when using specialised
  60 // StubAssembler functions.
  61 
  62 class StubAssembler: public C1_MacroAssembler {
  63  private:
  64   const char* _name;
  65   bool        _must_gc_arguments;
  66   int         _frame_size;
  67   int         _num_rt_args;
  68   int         _stub_id;
  69 
  70  public:
  71   // creation
  72   StubAssembler(CodeBuffer* code, const char * name, int stub_id);
  73   void set_info(const char* name, bool must_gc_arguments);
  74 
  75   void set_frame_size(int size);
  76   void set_num_rt_args(int args);
  77 
  78   void save_live_registers();
  79   void restore_live_registers_without_return();
  80 
  81   // accessors
  82   const char* name() const                       { return _name; }
  83   bool  must_gc_arguments() const                { return _must_gc_arguments; }
  84   int frame_size() const                         { return _frame_size; }
  85   int num_rt_args() const                        { return _num_rt_args; }
  86   int stub_id() const                            { return _stub_id; }
  87 
  88   // runtime calls (return offset of call to be used by GC map)
  89   int call_RT(Register oop_result1, Register metadata_result, address entry, int args_size = 0);
  90   int call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1);
  91   int call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2);
  92   int call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2, Register arg3);
  93 
  94   void prologue(const char* name, bool must_gc_arguments);
  95   void epilogue();
  96 };
  97 
  98 #endif // SHARE_C1_C1_MACROASSEMBLER_HPP