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https://gitlab.com/freepascal.org/fpc/source.git
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2080 lines
61 KiB
ObjectPascal
2080 lines
61 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1998-2002 by Florian Klaempfl
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This unit implements an abstract asmoutput class for all processor types
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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{ @abstract(This unit implements an abstract asm output class for all processor types)
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This unit implements an abstract assembler output class for all processors, these
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are then overriden for each assembler writer to actually write the data in these
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classes to an assembler file.
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}
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unit aasmtai;
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{$i fpcdefs.inc}
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interface
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uses
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cutils,cclasses,
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globtype,globals,systems,
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cpuinfo,cpubase,
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symppu,
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aasmbase;
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type
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taitype = (
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ait_none,
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ait_align,
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ait_section,
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ait_comment,
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ait_direct,
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ait_string,
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ait_instruction,
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ait_datablock,
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ait_symbol,
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ait_symbol_end, { needed to calc the size of a symbol }
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ait_label,
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ait_const_32bit,
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ait_const_16bit,
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ait_const_8bit,
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ait_const_symbol,
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{ the following is only used by the win32 version of the compiler }
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{ and only the GNU AS Win32 is able to write it }
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ait_const_rva,
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ait_real_32bit,
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ait_real_64bit,
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ait_real_80bit,
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ait_comp_64bit,
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ait_real_128bit,
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{$ifdef GDB}
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ait_stabn,
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ait_stabs,
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ait_force_line,
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ait_stab_function_name,
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{$endif GDB}
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{$ifdef alpha}
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{ the follow is for the DEC Alpha }
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ait_frame,
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ait_ent,
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{$endif alpha}
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{$ifdef ia64}
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ait_bundle,
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ait_stop,
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{$endif ia64}
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{$ifdef m68k}
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ait_labeled_instruction,
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{$endif m68k}
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{$ifdef SPARC}
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ait_labeled_instruction,
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{$endif SPARC}
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ait_cut, { used to split into tiny assembler files }
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ait_regalloc,
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ait_tempalloc,
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ait_marker { used to mark assembler blocks and inlined functions }
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);
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const
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taitypestr : array[taitype] of string[14] = (
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'<none>',
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'align',
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'section',
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'comment',
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'direct',
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'string',
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'instruction',
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'datablock',
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'symbol',
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'symbol_end',
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'label',
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'const_32bit',
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'const_16bit',
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'const_8bit',
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'const_symbol',
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'const_rva',
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'real_32bit',
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'real_64bit',
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'real_80bit',
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'comp_64bit',
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'real_128bit',
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{$ifdef GDB}
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'stabn',
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'stabs',
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'force_line',
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'stab_funcname',
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{$endif GDB}
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{$ifdef alpha}
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{ the follow is for the DEC Alpha }
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'frame',
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'ent',
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{$endif alpha}
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{$ifdef ia64}
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'bundle',
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'stop',
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{$endif ia64}
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{$ifdef m68k}
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'labeled_instr',
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{$endif m68k}
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{$ifdef SPARC}
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'labeled_instr',
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{$endif SPARC}
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'cut',
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'regalloc',
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'tempalloc',
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'marker'
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);
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{ ait_* types which don't result in executable code or which don't influence }
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{ the way the program runs/behaves, but which may be encountered by the }
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{ optimizer (= if it's sometimes added to the exprasm list). Update if you add }
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{ a new ait type! }
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const
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SkipInstr = [ait_comment, ait_symbol,ait_section
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{$ifdef GDB}
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,ait_stabs, ait_stabn, ait_stab_function_name, ait_force_line
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{$endif GDB}
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,ait_regalloc, ait_tempalloc, ait_symbol_end];
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{ ait_* types which do not have line information (and hence which are of type
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tai, otherwise, they are of type tailineinfo }
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{ ait_* types which do not have line information (and hence which are of type
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tai, otherwise, they are of type tailineinfo }
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SkipLineInfo =[ait_label,
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ait_regalloc,ait_tempalloc,
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{$ifdef GDB}
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ait_stabn,ait_stabs,ait_stab_function_name,
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{$endif GDB}
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ait_cut,ait_marker,ait_align,ait_section,ait_comment,
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ait_const_8bit,ait_const_16bit,ait_const_32bit,
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ait_real_32bit,ait_real_64bit,ait_real_80bit,ait_comp_64bit
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];
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type
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{ cut type, required for alphanumeric ordering of the assembler filenames }
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TCutPlace=(cut_normal,cut_begin,cut_end);
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TMarker = (NoPropInfoStart,NoPropInfoEnd,
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AsmBlockStart,AsmBlockEnd,
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InlineStart,InlineEnd,marker_blockstart);
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{ Buffer type used for alignment }
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tfillbuffer = array[0..63] of char;
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Tspill_temp_list=array[0..255] of Treference;
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{ abstract assembler item }
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tai = class(TLinkedListItem)
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{$ifndef NOOPT}
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{ pointer to record with optimizer info about this tai object }
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optinfo : pointer;
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{$endif NOOPT}
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typ : taitype;
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constructor Create;
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);virtual;
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procedure ppuwrite(ppufile:tcompilerppufile);virtual;
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procedure derefimpl;virtual;
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end;
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{ abstract assembler item with line information }
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tailineinfo = class(tai)
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fileinfo : tfileposinfo;
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constructor Create;
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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end;
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taiclass = class of tai;
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taiclassarray = array[taitype] of taiclass;
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{ Generates an assembler string }
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tai_string = class(tailineinfo)
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str : pchar;
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{ extra len so the string can contain an \0 }
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len : longint;
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constructor Create(const _str : string);
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constructor Create_pchar(_str : pchar);
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constructor Create_length_pchar(_str : pchar;length : longint);
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destructor Destroy;override;
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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function getcopy:tlinkedlistitem;override;
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end;
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{ Generates a common label }
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tai_symbol = class(tailineinfo)
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is_global : boolean;
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sym : tasmsymbol;
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size : longint;
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constructor Create(_sym:tasmsymbol;siz:longint);
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constructor Create_Global(_sym:tasmsymbol;siz:longint);
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constructor Createname(const _name : string;siz:longint);
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constructor Createname_global(const _name : string;siz:longint);
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constructor Createdataname(const _name : string;siz:longint);
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constructor Createdataname_global(const _name : string;siz:longint);
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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procedure derefimpl;override;
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end;
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tai_symbol_end = class(tailineinfo)
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sym : tasmsymbol;
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constructor Create(_sym:tasmsymbol);
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constructor Createname(const _name : string);
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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procedure derefimpl;override;
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end;
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{ Generates an assembler label }
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tai_label = class(tai)
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is_global : boolean;
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l : tasmlabel;
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constructor Create(_l : tasmlabel);
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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procedure derefimpl;override;
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end;
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{ Directly output data to final assembler file }
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tai_direct = class(tailineinfo)
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str : pchar;
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constructor Create(_str : pchar);
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destructor Destroy; override;
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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function getcopy:tlinkedlistitem;override;
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end;
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{ Generates an assembler comment }
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tai_comment = class(tai)
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str : pchar;
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constructor Create(_str : pchar);
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destructor Destroy; override;
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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function getcopy:tlinkedlistitem;override;
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end;
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{ Generates a section / segment directive }
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tai_section = class(tai)
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sec : TSection;
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constructor Create(s : TSection);
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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end;
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{ Generates an uninitializised data block }
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tai_datablock = class(tailineinfo)
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is_global : boolean;
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sym : tasmsymbol;
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size : longint;
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constructor Create(const _name : string;_size : longint);
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constructor Create_global(const _name : string;_size : longint);
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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procedure derefimpl;override;
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end;
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{ Generates a long integer (32 bit) }
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tai_const = class(tai)
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value : longint;
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constructor Create_32bit(_value : longint);
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constructor Create_16bit(_value : word);
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constructor Create_8bit(_value : byte);
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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end;
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tai_const_symbol = class(tailineinfo)
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sym : tasmsymbol;
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offset : longint;
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constructor Create(_sym:tasmsymbol);
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constructor Create_offset(_sym:tasmsymbol;ofs:longint);
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constructor Create_rva(_sym:tasmsymbol);
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constructor Createname(const name:string);
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constructor Createname_offset(const name:string;ofs:longint);
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constructor Createname_rva(const name:string);
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constructor Createdataname(const name:string);
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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procedure derefimpl;override;
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function getcopy:tlinkedlistitem;override;
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end;
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{ Generates a single float (32 bit real) }
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tai_real_32bit = class(tai)
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value : ts32real;
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constructor Create(_value : ts32real);
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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end;
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{ Generates a double float (64 bit real) }
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tai_real_64bit = class(tai)
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value : ts64real;
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constructor Create(_value : ts64real);
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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end;
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{ Generates an extended float (80 bit real) }
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tai_real_80bit = class(tai)
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value : ts80real;
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constructor Create(_value : ts80real);
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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end;
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{ Generates a comp int (integer over 64 bits)
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This is Intel 80x86 specific, and is not
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really supported on other processors.
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}
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tai_comp_64bit = class(tai)
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value : ts64comp;
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constructor Create(_value : ts64comp);
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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end;
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{ Insert a cut to split assembler into several smaller files }
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tai_cut = class(tai)
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place : tcutplace;
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constructor Create;
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constructor Create_begin;
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constructor Create_end;
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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end;
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{ Insert a marker for assembler and inline blocks }
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tai_marker = class(tai)
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Kind: TMarker;
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Constructor Create(_Kind: TMarker);
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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end;
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tai_tempalloc = class(tai)
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allocation : boolean;
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{$ifdef EXTDEBUG}
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problem : pstring;
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{$endif EXTDEBUG}
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temppos,
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tempsize : longint;
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constructor alloc(pos,size:longint);
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constructor dealloc(pos,size:longint);
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{$ifdef EXTDEBUG}
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constructor allocinfo(pos,size:longint;const st:string);
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{$endif EXTDEBUG}
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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destructor destroy;override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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end;
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tai_regalloc = class(tai)
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allocation : boolean;
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reg : tregister;
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constructor alloc(r : tregister);
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constructor dealloc(r : tregister);
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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end;
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Taasmoutput=class;
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Trggetproc=procedure(list:Taasmoutput;position:Tai;subreg:Tsubregister;var result:Tregister) of object;
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Trgungetproc=procedure(list:Taasmoutput;position:Tai;const r:Tregister) of object;
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{ Class template for assembler instructions
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}
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taicpu_abstract = class(tailineinfo)
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protected
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procedure ppuloadoper(ppufile:tcompilerppufile;var o:toper);virtual;abstract;
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procedure ppuwriteoper(ppufile:tcompilerppufile;const o:toper);virtual;abstract;
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procedure ppuderefoper(var o:toper);virtual;abstract;
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public
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{ Condition flags for instruction }
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condition : TAsmCond;
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{ Number of operands to instruction }
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ops : byte;
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{ Operands of instruction }
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oper : array[0..max_operands-1] of toper;
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{ Actual opcode of instruction }
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opcode : tasmop;
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{$ifdef x86}
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segprefix : tregister;
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{$endif x86}
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{ true if instruction is a jmp }
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is_jmp : boolean; { is this instruction a jump? (needed for optimizer) }
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Constructor Create(op : tasmop);
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Destructor Destroy;override;
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function getcopy:TLinkedListItem;override;
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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procedure derefimpl;override;
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procedure SetCondition(const c:TAsmCond);
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procedure loadconst(opidx:longint;l:aword);
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procedure loadsymbol(opidx:longint;s:tasmsymbol;sofs:longint);
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procedure loadref(opidx:longint;const r:treference);
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procedure loadreg(opidx:longint;r:tregister);
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procedure loadoper(opidx:longint;o:toper);
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function is_nop:boolean;virtual;abstract;
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function is_move:boolean;virtual;abstract;
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{$ifdef NEWRA}
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{ register allocator }
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function get_insert_pos(p:Tai;huntfor1,huntfor2,huntfor3:Tsuperregister;var unusedregsint:Tsupregset):Tai;
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procedure forward_allocation(p:Tai;var unusedregsint:Tsupregset);
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function spill_registers(list:Taasmoutput;
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rgget:Trggetproc;
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rgunget:Trgungetproc;
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r:Tsupregset;
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var unusedregsint:Tsupregset;
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const spilltemplist:Tspill_temp_list):boolean;virtual;abstract;
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{$endif NEWRA}
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end;
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{ alignment for operator }
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tai_align_abstract = class(tai)
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aligntype : byte; { 1 = no align, 2 = word align, 4 = dword align }
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fillsize : byte; { real size to fill }
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fillop : byte; { value to fill with - optional }
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use_op : boolean;
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constructor Create(b:byte);
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constructor Create_op(b: byte; _op: byte);
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constructor ppuload(t:taitype;ppufile:tcompilerppufile);override;
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procedure ppuwrite(ppufile:tcompilerppufile);override;
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function calculatefillbuf(var buf : tfillbuffer):pchar;virtual;
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end;
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Ttranstable=array[Tsuperregister] of Tsuperregister;
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taasmoutput = class(tlinkedlist)
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constructor create;
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function getlasttaifilepos : pfileposinfo;
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procedure convert_registers;
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procedure translate_registers(const table:Ttranstable);
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end;
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var
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{ array with all class types for tais }
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aiclass : taiclassarray;
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{ temporary lists }
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exprasmlist,
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{ default lists }
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datasegment,codesegment,bsssegment,
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debuglist,withdebuglist,consts,
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importssection,exportssection,
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resourcesection,rttilist,
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resourcestringlist : taasmoutput;
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function ppuloadai(ppufile:tcompilerppufile):tai;
|
|
procedure ppuwriteai(ppufile:tcompilerppufile;n:tai);
|
|
|
|
|
|
implementation
|
|
|
|
uses
|
|
{$ifdef delphi}
|
|
sysutils,
|
|
{$else}
|
|
strings,
|
|
{$endif}
|
|
verbose;
|
|
|
|
const
|
|
pputaimarker = 254;
|
|
|
|
|
|
{****************************************************************************
|
|
Helpers
|
|
****************************************************************************}
|
|
|
|
function ppuloadai(ppufile:tcompilerppufile):tai;
|
|
var
|
|
b : byte;
|
|
t : taitype;
|
|
begin
|
|
{ marker }
|
|
b:=ppufile.getbyte;
|
|
if b<>pputaimarker then
|
|
internalerror(200208181);
|
|
{ load nodetype }
|
|
t:=taitype(ppufile.getbyte);
|
|
if t<>ait_none then
|
|
begin
|
|
if t>high(taitype) then
|
|
internalerror(200208182);
|
|
if not assigned(aiclass[t]) then
|
|
internalerror(200208183);
|
|
{writeln('taiload: ',taitypestr[t]);}
|
|
{ generate tai of the correct class }
|
|
ppuloadai:=aiclass[t].ppuload(t,ppufile);
|
|
end
|
|
else
|
|
ppuloadai:=nil;
|
|
end;
|
|
|
|
|
|
procedure ppuwriteai(ppufile:tcompilerppufile;n:tai);
|
|
begin
|
|
{ marker, read by ppuloadnode }
|
|
ppufile.putbyte(pputaimarker);
|
|
if assigned(n) then
|
|
begin
|
|
{ type, read by ppuloadnode }
|
|
ppufile.putbyte(byte(n.typ));
|
|
{writeln('taiwrite: ',taitypestr[n.typ]);}
|
|
n.ppuwrite(ppufile);
|
|
end
|
|
else
|
|
ppufile.putbyte(byte(ait_none));
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TAI
|
|
****************************************************************************}
|
|
|
|
constructor tai.Create;
|
|
begin
|
|
{$ifndef NOOPT}
|
|
optinfo:=nil;
|
|
{$endif NOOPT}
|
|
end;
|
|
|
|
|
|
constructor tai.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
typ:=t;
|
|
{$ifndef NOOPT}
|
|
optinfo:=nil;
|
|
{$endif}
|
|
end;
|
|
|
|
|
|
procedure tai.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
end;
|
|
|
|
|
|
procedure tai.derefimpl;
|
|
begin
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TAILINEINFO
|
|
****************************************************************************}
|
|
|
|
constructor tailineinfo.create;
|
|
begin
|
|
inherited create;
|
|
fileinfo:=aktfilepos;
|
|
end;
|
|
|
|
|
|
constructor tailineinfo.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
ppufile.getposinfo(fileinfo);
|
|
end;
|
|
|
|
|
|
procedure tailineinfo.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putposinfo(fileinfo);
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TAI_SECTION
|
|
****************************************************************************}
|
|
|
|
constructor tai_section.Create(s : TSection);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_section;
|
|
sec:=s;
|
|
end;
|
|
|
|
|
|
constructor tai_section.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
sec:=tsection(ppufile.getbyte);
|
|
end;
|
|
|
|
|
|
procedure tai_section.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putbyte(byte(sec));
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TAI_DATABLOCK
|
|
****************************************************************************}
|
|
|
|
constructor tai_datablock.Create(const _name : string;_size : longint);
|
|
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_datablock;
|
|
sym:=objectlibrary.newasmsymboltype(_name,AB_LOCAL,AT_DATA);
|
|
{ keep things aligned }
|
|
if _size<=0 then
|
|
_size:=4;
|
|
size:=_size;
|
|
is_global:=false;
|
|
end;
|
|
|
|
|
|
constructor tai_datablock.Create_global(const _name : string;_size : longint);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_datablock;
|
|
sym:=objectlibrary.newasmsymboltype(_name,AB_GLOBAL,AT_DATA);
|
|
{ keep things aligned }
|
|
if _size<=0 then
|
|
_size:=4;
|
|
size:=_size;
|
|
is_global:=true;
|
|
end;
|
|
|
|
|
|
constructor tai_datablock.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited Create;
|
|
sym:=ppufile.getasmsymbol;
|
|
size:=ppufile.getlongint;
|
|
is_global:=boolean(ppufile.getbyte);
|
|
end;
|
|
|
|
|
|
procedure tai_datablock.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putasmsymbol(sym);
|
|
ppufile.putlongint(size);
|
|
ppufile.putbyte(byte(is_global));
|
|
end;
|
|
|
|
|
|
procedure tai_datablock.derefimpl;
|
|
begin
|
|
objectlibrary.DerefAsmsymbol(sym);
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TAI_SYMBOL
|
|
****************************************************************************}
|
|
|
|
constructor tai_symbol.Create(_sym:tasmsymbol;siz:longint);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_symbol;
|
|
sym:=_sym;
|
|
size:=siz;
|
|
sym.defbind:=AB_LOCAL;
|
|
is_global:=false;
|
|
end;
|
|
|
|
constructor tai_symbol.Create_global(_sym:tasmsymbol;siz:longint);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_symbol;
|
|
sym:=_sym;
|
|
size:=siz;
|
|
sym.defbind:=AB_GLOBAL;
|
|
is_global:=true;
|
|
end;
|
|
|
|
constructor tai_symbol.Createname(const _name : string;siz:longint);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_symbol;
|
|
sym:=objectlibrary.newasmsymboltype(_name,AB_LOCAL,AT_FUNCTION);
|
|
size:=siz;
|
|
is_global:=false;
|
|
end;
|
|
|
|
constructor tai_symbol.Createname_global(const _name : string;siz:longint);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_symbol;
|
|
sym:=objectlibrary.newasmsymboltype(_name,AB_GLOBAL,AT_FUNCTION);
|
|
size:=siz;
|
|
is_global:=true;
|
|
end;
|
|
|
|
constructor tai_symbol.Createdataname(const _name : string;siz:longint);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_symbol;
|
|
sym:=objectlibrary.newasmsymboltype(_name,AB_LOCAL,AT_DATA);
|
|
size:=siz;
|
|
is_global:=false;
|
|
end;
|
|
|
|
constructor tai_symbol.Createdataname_global(const _name : string;siz:longint);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_symbol;
|
|
sym:=objectlibrary.newasmsymboltype(_name,AB_GLOBAL,AT_DATA);
|
|
size:=siz;
|
|
is_global:=true;
|
|
end;
|
|
|
|
|
|
constructor tai_symbol.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
sym:=ppufile.getasmsymbol;
|
|
size:=ppufile.getlongint;
|
|
is_global:=boolean(ppufile.getbyte);
|
|
end;
|
|
|
|
|
|
procedure tai_symbol.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putasmsymbol(sym);
|
|
ppufile.putlongint(size);
|
|
ppufile.putbyte(byte(is_global));
|
|
end;
|
|
|
|
|
|
procedure tai_symbol.derefimpl;
|
|
begin
|
|
objectlibrary.DerefAsmsymbol(sym);
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TAI_SYMBOL
|
|
****************************************************************************}
|
|
|
|
constructor tai_symbol_end.Create(_sym:tasmsymbol);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_symbol_end;
|
|
sym:=_sym;
|
|
end;
|
|
|
|
constructor tai_symbol_end.Createname(const _name : string);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_symbol_end;
|
|
sym:=objectlibrary.newasmsymboltype(_name,AB_GLOBAL,AT_NONE);
|
|
end;
|
|
|
|
constructor tai_symbol_end.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
sym:=ppufile.getasmsymbol;
|
|
end;
|
|
|
|
|
|
procedure tai_symbol_end.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putasmsymbol(sym);
|
|
end;
|
|
|
|
|
|
procedure tai_symbol_end.derefimpl;
|
|
begin
|
|
objectlibrary.DerefAsmsymbol(sym);
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TAI_CONST
|
|
****************************************************************************}
|
|
|
|
constructor tai_const.Create_32bit(_value : longint);
|
|
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_const_32bit;
|
|
value:=_value;
|
|
end;
|
|
|
|
constructor tai_const.Create_16bit(_value : word);
|
|
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_const_16bit;
|
|
value:=_value;
|
|
end;
|
|
|
|
constructor tai_const.Create_8bit(_value : byte);
|
|
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_const_8bit;
|
|
value:=_value;
|
|
end;
|
|
|
|
|
|
constructor tai_const.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
value:=ppufile.getlongint;
|
|
end;
|
|
|
|
|
|
procedure tai_const.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putlongint(value);
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TAI_CONST_SYMBOL
|
|
****************************************************************************}
|
|
|
|
constructor tai_const_symbol.Create(_sym:tasmsymbol);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_const_symbol;
|
|
sym:=_sym;
|
|
offset:=0;
|
|
{ update sym info }
|
|
sym.increfs;
|
|
end;
|
|
|
|
constructor tai_const_symbol.Create_offset(_sym:tasmsymbol;ofs:longint);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_const_symbol;
|
|
sym:=_sym;
|
|
offset:=ofs;
|
|
{ update sym info }
|
|
sym.increfs;
|
|
end;
|
|
|
|
constructor tai_const_symbol.Create_rva(_sym:tasmsymbol);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_const_rva;
|
|
sym:=_sym;
|
|
offset:=0;
|
|
{ update sym info }
|
|
sym.increfs;
|
|
end;
|
|
|
|
constructor tai_const_symbol.Createname(const name:string);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_const_symbol;
|
|
sym:=objectlibrary.newasmsymbol(name);
|
|
offset:=0;
|
|
{ update sym info }
|
|
sym.increfs;
|
|
end;
|
|
|
|
constructor tai_const_symbol.Createname_offset(const name:string;ofs:longint);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_const_symbol;
|
|
sym:=objectlibrary.newasmsymbol(name);
|
|
offset:=ofs;
|
|
{ update sym info }
|
|
sym.increfs;
|
|
end;
|
|
|
|
constructor tai_const_symbol.Createname_rva(const name:string);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_const_rva;
|
|
sym:=objectlibrary.newasmsymbol(name);
|
|
offset:=0;
|
|
{ update sym info }
|
|
sym.increfs;
|
|
end;
|
|
|
|
|
|
constructor tai_const_symbol.Createdataname(const name:string);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_const_symbol;
|
|
sym:=objectlibrary.newasmsymboltype(name,AB_EXTERNAL,AT_DATA);
|
|
offset:=0;
|
|
{ update sym info }
|
|
sym.increfs;
|
|
end;
|
|
|
|
|
|
constructor tai_const_symbol.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
sym:=ppufile.getasmsymbol;
|
|
offset:=ppufile.getlongint;
|
|
end;
|
|
|
|
|
|
procedure tai_const_symbol.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putasmsymbol(sym);
|
|
ppufile.putlongint(offset);
|
|
end;
|
|
|
|
|
|
procedure tai_const_symbol.derefimpl;
|
|
begin
|
|
objectlibrary.DerefAsmsymbol(sym);
|
|
end;
|
|
|
|
|
|
function tai_const_symbol.getcopy:tlinkedlistitem;
|
|
begin
|
|
getcopy:=inherited getcopy;
|
|
{ we need to increase the reference number }
|
|
sym.increfs;
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TAI_real_32bit
|
|
****************************************************************************}
|
|
|
|
constructor tai_real_32bit.Create(_value : ts32real);
|
|
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_real_32bit;
|
|
value:=_value;
|
|
end;
|
|
|
|
constructor tai_real_32bit.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
value:=ppufile.getreal;
|
|
end;
|
|
|
|
|
|
procedure tai_real_32bit.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putreal(value);
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TAI_real_64bit
|
|
****************************************************************************}
|
|
|
|
constructor tai_real_64bit.Create(_value : ts64real);
|
|
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_real_64bit;
|
|
value:=_value;
|
|
end;
|
|
|
|
|
|
constructor tai_real_64bit.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
value:=ppufile.getreal;
|
|
end;
|
|
|
|
|
|
procedure tai_real_64bit.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putreal(value);
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TAI_real_80bit
|
|
****************************************************************************}
|
|
|
|
constructor tai_real_80bit.Create(_value : ts80real);
|
|
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_real_80bit;
|
|
value:=_value;
|
|
end;
|
|
|
|
|
|
constructor tai_real_80bit.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
value:=ppufile.getreal;
|
|
end;
|
|
|
|
|
|
procedure tai_real_80bit.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putreal(value);
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
Tai_comp_64bit
|
|
****************************************************************************}
|
|
|
|
constructor tai_comp_64bit.Create(_value : ts64comp);
|
|
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_comp_64bit;
|
|
value:=_value;
|
|
end;
|
|
|
|
|
|
constructor tai_comp_64bit.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
ppufile.putdata(value,sizeof(value));
|
|
end;
|
|
|
|
|
|
procedure tai_comp_64bit.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.getdata(value,sizeof(value));
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TAI_STRING
|
|
****************************************************************************}
|
|
|
|
constructor tai_string.Create(const _str : string);
|
|
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_string;
|
|
len:=length(_str);
|
|
getmem(str,len+1);
|
|
strpcopy(str,_str);
|
|
end;
|
|
|
|
constructor tai_string.Create_pchar(_str : pchar);
|
|
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_string;
|
|
str:=_str;
|
|
len:=strlen(_str);
|
|
end;
|
|
|
|
constructor tai_string.Create_length_pchar(_str : pchar;length : longint);
|
|
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_string;
|
|
str:=_str;
|
|
len:=length;
|
|
end;
|
|
|
|
destructor tai_string.destroy;
|
|
|
|
begin
|
|
{ you can have #0 inside the strings so }
|
|
if str<>nil then
|
|
freemem(str,len+1);
|
|
inherited Destroy;
|
|
end;
|
|
|
|
|
|
constructor tai_string.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
len:=ppufile.getlongint;
|
|
getmem(str,len+1);
|
|
ppufile.getdata(str^,len);
|
|
str[len]:=#0;
|
|
end;
|
|
|
|
|
|
procedure tai_string.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putlongint(len);
|
|
ppufile.putdata(str^,len);
|
|
end;
|
|
|
|
|
|
function tai_string.getcopy : tlinkedlistitem;
|
|
var
|
|
p : tlinkedlistitem;
|
|
begin
|
|
p:=inherited getcopy;
|
|
getmem(tai_string(p).str,len+1);
|
|
move(str^,tai_string(p).str^,len+1);
|
|
getcopy:=p;
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TAI_LABEL
|
|
****************************************************************************}
|
|
|
|
constructor tai_label.create(_l : tasmlabel);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_label;
|
|
l:=_l;
|
|
l.is_set:=true;
|
|
is_global:=(l.defbind=AB_GLOBAL);
|
|
end;
|
|
|
|
|
|
constructor tai_label.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
l:=tasmlabel(ppufile.getasmsymbol);
|
|
is_global:=boolean(ppufile.getbyte);
|
|
end;
|
|
|
|
|
|
procedure tai_label.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putasmsymbol(l);
|
|
ppufile.putbyte(byte(is_global));
|
|
end;
|
|
|
|
|
|
procedure tai_label.derefimpl;
|
|
begin
|
|
objectlibrary.DerefAsmsymbol(tasmsymbol(l));
|
|
l.is_set:=true;
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TAI_DIRECT
|
|
****************************************************************************}
|
|
|
|
constructor tai_direct.Create(_str : pchar);
|
|
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_direct;
|
|
str:=_str;
|
|
end;
|
|
|
|
destructor tai_direct.destroy;
|
|
|
|
begin
|
|
strdispose(str);
|
|
inherited Destroy;
|
|
end;
|
|
|
|
constructor tai_direct.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
var
|
|
len : longint;
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
len:=ppufile.getlongint;
|
|
getmem(str,len+1);
|
|
ppufile.getdata(str^,len);
|
|
str[len]:=#0;
|
|
end;
|
|
|
|
|
|
procedure tai_direct.ppuwrite(ppufile:tcompilerppufile);
|
|
var
|
|
len : longint;
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
len:=strlen(str);
|
|
ppufile.putlongint(len);
|
|
ppufile.putdata(str^,len);
|
|
end;
|
|
|
|
|
|
function tai_direct.getcopy : tlinkedlistitem;
|
|
var
|
|
p : tlinkedlistitem;
|
|
begin
|
|
p:=inherited getcopy;
|
|
getmem(tai_direct(p).str,strlen(str)+1);
|
|
move(str^,tai_direct(p).str^,strlen(str)+1);
|
|
getcopy:=p;
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
tai_comment comment to be inserted in the assembler file
|
|
****************************************************************************}
|
|
|
|
constructor tai_comment.Create(_str : pchar);
|
|
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_comment;
|
|
str:=_str;
|
|
end;
|
|
|
|
destructor tai_comment.destroy;
|
|
|
|
begin
|
|
strdispose(str);
|
|
inherited Destroy;
|
|
end;
|
|
|
|
constructor tai_comment.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
var
|
|
len : longint;
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
len:=ppufile.getlongint;
|
|
getmem(str,len+1);
|
|
ppufile.getdata(str^,len);
|
|
str[len]:=#0;
|
|
end;
|
|
|
|
|
|
procedure tai_comment.ppuwrite(ppufile:tcompilerppufile);
|
|
var
|
|
len : longint;
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
len:=strlen(str);
|
|
ppufile.putlongint(len);
|
|
ppufile.putdata(str^,len);
|
|
end;
|
|
|
|
|
|
function tai_comment.getcopy : tlinkedlistitem;
|
|
var
|
|
p : tlinkedlistitem;
|
|
begin
|
|
p:=inherited getcopy;
|
|
getmem(tai_comment(p).str,strlen(str)+1);
|
|
move(str^,tai_comment(p).str^,strlen(str)+1);
|
|
getcopy:=p;
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
TAI_CUT
|
|
****************************************************************************}
|
|
|
|
constructor tai_cut.Create;
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_cut;
|
|
place:=cut_normal;
|
|
end;
|
|
|
|
|
|
constructor tai_cut.Create_begin;
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_cut;
|
|
place:=cut_begin;
|
|
end;
|
|
|
|
|
|
constructor tai_cut.Create_end;
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_cut;
|
|
place:=cut_end;
|
|
end;
|
|
|
|
|
|
constructor tai_cut.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
place:=TCutPlace(ppufile.getbyte);
|
|
end;
|
|
|
|
|
|
procedure tai_cut.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putbyte(byte(place));
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
Tai_Marker
|
|
****************************************************************************}
|
|
|
|
constructor Tai_Marker.Create(_Kind: TMarker);
|
|
begin
|
|
Inherited Create;
|
|
typ := ait_marker;
|
|
Kind := _Kind;
|
|
end;
|
|
|
|
|
|
constructor Tai_Marker.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
kind:=TMarker(ppufile.getbyte);
|
|
end;
|
|
|
|
|
|
procedure Tai_Marker.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putbyte(byte(kind));
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
tai_tempalloc
|
|
*****************************************************************************}
|
|
|
|
constructor tai_tempalloc.alloc(pos,size:longint);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_tempalloc;
|
|
allocation:=true;
|
|
temppos:=pos;
|
|
tempsize:=size;
|
|
{$ifdef EXTDEBUG}
|
|
problem:=nil;
|
|
{$endif EXTDEBUG}
|
|
end;
|
|
|
|
|
|
destructor tai_tempalloc.destroy;
|
|
begin
|
|
{$ifdef EXTDEBUG}
|
|
stringdispose(problem);
|
|
{$endif EXTDEBUG}
|
|
inherited destroy;
|
|
end;
|
|
|
|
|
|
constructor tai_tempalloc.dealloc(pos,size:longint);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_tempalloc;
|
|
allocation:=false;
|
|
temppos:=pos;
|
|
tempsize:=size;
|
|
{$ifdef EXTDEBUG}
|
|
problem:=nil;
|
|
{$endif EXTDEBUG}
|
|
end;
|
|
|
|
|
|
{$ifdef EXTDEBUG}
|
|
constructor tai_tempalloc.allocinfo(pos,size:longint;const st:string);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_tempalloc;
|
|
allocation:=false;
|
|
temppos:=pos;
|
|
tempsize:=size;
|
|
problem:=stringdup(st);
|
|
end;
|
|
{$endif EXTDEBUG}
|
|
|
|
|
|
constructor tai_tempalloc.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
temppos:=ppufile.getlongint;
|
|
tempsize:=ppufile.getlongint;
|
|
allocation:=boolean(ppufile.getbyte);
|
|
{$ifdef EXTDEBUG}
|
|
problem:=nil;
|
|
{$endif EXTDEBUG}
|
|
end;
|
|
|
|
|
|
procedure tai_tempalloc.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putlongint(temppos);
|
|
ppufile.putlongint(tempsize);
|
|
ppufile.putbyte(byte(allocation));
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
tai_regalloc
|
|
*****************************************************************************}
|
|
|
|
constructor tai_regalloc.alloc(r : tregister);
|
|
begin
|
|
inherited create;
|
|
typ:=ait_regalloc;
|
|
allocation:=true;
|
|
reg:=r;
|
|
end;
|
|
|
|
|
|
constructor tai_regalloc.dealloc(r : tregister);
|
|
begin
|
|
inherited create;
|
|
typ:=ait_regalloc;
|
|
allocation:=false;
|
|
reg:=r;
|
|
end;
|
|
|
|
|
|
constructor tai_regalloc.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
ppufile.getdata(reg,sizeof(Tregister));
|
|
allocation:=boolean(ppufile.getbyte);
|
|
end;
|
|
|
|
|
|
procedure tai_regalloc.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putdata(reg,sizeof(Tregister));
|
|
ppufile.putbyte(byte(allocation));
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
TaiInstruction
|
|
*****************************************************************************}
|
|
|
|
constructor taicpu_abstract.Create(op : tasmop);
|
|
|
|
begin
|
|
inherited create;
|
|
typ:=ait_instruction;
|
|
is_jmp:=false;
|
|
opcode:=op;
|
|
ops:=0;
|
|
fillchar(condition,sizeof(condition),0);
|
|
fillchar(oper,sizeof(oper),0);
|
|
end;
|
|
|
|
|
|
destructor taicpu_abstract.Destroy;
|
|
|
|
var
|
|
i : longint;
|
|
begin
|
|
for i:=0 to ops-1 do
|
|
case oper[i].typ of
|
|
top_ref:
|
|
dispose(oper[i].ref);
|
|
end;
|
|
inherited destroy;
|
|
end;
|
|
|
|
|
|
{ ---------------------------------------------------------------------
|
|
Loading of operands.
|
|
---------------------------------------------------------------------}
|
|
|
|
procedure taicpu_abstract.loadconst(opidx:longint;l:aword);
|
|
begin
|
|
if opidx>=ops then
|
|
ops:=opidx+1;
|
|
with oper[opidx] do
|
|
begin
|
|
if typ=top_ref then
|
|
dispose(ref);
|
|
val:=l;
|
|
typ:=top_const;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure taicpu_abstract.loadsymbol(opidx:longint;s:tasmsymbol;sofs:longint);
|
|
begin
|
|
if not assigned(s) then
|
|
internalerror(200204251);
|
|
if opidx>=ops then
|
|
ops:=opidx+1;
|
|
with oper[opidx] do
|
|
begin
|
|
if typ=top_ref then
|
|
dispose(ref);
|
|
sym:=s;
|
|
symofs:=sofs;
|
|
typ:=top_symbol;
|
|
end;
|
|
s.increfs;
|
|
end;
|
|
|
|
|
|
procedure taicpu_abstract.loadref(opidx:longint;const r:treference);
|
|
begin
|
|
if (r.base.enum=R_NO) or (r.index.enum=R_NO) then
|
|
internalerror(200308192);
|
|
if opidx>=ops then
|
|
ops:=opidx+1;
|
|
with oper[opidx] do
|
|
begin
|
|
if typ<>top_ref then
|
|
new(ref);
|
|
ref^:=r;
|
|
{$ifdef i386}
|
|
{ We allow this exception for i386, since overloading this would be
|
|
too much of a a speed penalty}
|
|
if ref^.segment.enum=R_INTREGISTER then
|
|
begin
|
|
if (ref^.segment.number <> NR_NO) and (ref^.segment.number <> NR_DS) then
|
|
segprefix:=ref^.segment;
|
|
end
|
|
else
|
|
if not(ref^.segment.enum in [R_DS,R_NO]) then
|
|
segprefix:=ref^.segment;
|
|
{$endif}
|
|
typ:=top_ref;
|
|
{ mark symbol as used }
|
|
if assigned(ref^.symbol) then
|
|
ref^.symbol.increfs;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure taicpu_abstract.loadreg(opidx:longint;r:tregister);
|
|
begin
|
|
if opidx>=ops then
|
|
ops:=opidx+1;
|
|
with oper[opidx] do
|
|
begin
|
|
if typ=top_ref then
|
|
dispose(ref);
|
|
reg:=r;
|
|
typ:=top_reg;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure taicpu_abstract.loadoper(opidx:longint;o:toper);
|
|
begin
|
|
if opidx>=ops then
|
|
ops:=opidx+1;
|
|
if oper[opidx].typ=top_ref then
|
|
dispose(oper[opidx].ref);
|
|
oper[opidx]:=o;
|
|
{ copy also the reference }
|
|
if oper[opidx].typ=top_ref then
|
|
begin
|
|
new(oper[opidx].ref);
|
|
oper[opidx].ref^:=o.ref^;
|
|
end;
|
|
end;
|
|
|
|
{$ifdef NEWRA}
|
|
{ ---------------------------------------------------------------------
|
|
Register allocator methods.
|
|
---------------------------------------------------------------------}
|
|
|
|
function taicpu_abstract.get_insert_pos(p:Tai;huntfor1,huntfor2,huntfor3:Tsuperregister;var unusedregsint:Tsupregset):Tai;
|
|
var
|
|
back:Tsupregset;
|
|
begin
|
|
back:=unusedregsint;
|
|
get_insert_pos:=p;
|
|
while (p<>nil) and (p.typ=ait_regalloc) do
|
|
begin
|
|
{Rewind the register allocation.}
|
|
if Tai_regalloc(p).allocation then
|
|
include(unusedregsint,Tai_regalloc(p).reg.number shr 8)
|
|
else
|
|
begin
|
|
exclude(unusedregsint,Tai_regalloc(p).reg.number shr 8);
|
|
if Tai_regalloc(p).reg.number shr 8=huntfor1 then
|
|
begin
|
|
get_insert_pos:=Tai(p.previous);
|
|
back:=unusedregsint;
|
|
end;
|
|
if Tai_regalloc(p).reg.number shr 8=huntfor2 then
|
|
begin
|
|
get_insert_pos:=Tai(p.previous);
|
|
back:=unusedregsint;
|
|
end;
|
|
if Tai_regalloc(p).reg.number shr 8=huntfor3 then
|
|
begin
|
|
get_insert_pos:=Tai(p.previous);
|
|
back:=unusedregsint;
|
|
end;
|
|
end;
|
|
p:=Tai(p.previous);
|
|
end;
|
|
unusedregsint:=back;
|
|
end;
|
|
|
|
|
|
procedure taicpu_abstract.forward_allocation(p:Tai;var unusedregsint:Tsupregset);
|
|
begin
|
|
{Forward the register allocation again.}
|
|
while (p<>self) do
|
|
begin
|
|
if p.typ<>ait_regalloc then
|
|
internalerror(200305311);
|
|
if Tai_regalloc(p).allocation then
|
|
exclude(unusedregsint,Tai_regalloc(p).reg.number shr 8)
|
|
else
|
|
include(unusedregsint,Tai_regalloc(p).reg.number shr 8);
|
|
p:=Tai(p.next);
|
|
end;
|
|
end;
|
|
{$endif NEWRA}
|
|
|
|
{ ---------------------------------------------------------------------
|
|
Miscellaneous methods.
|
|
---------------------------------------------------------------------}
|
|
|
|
procedure taicpu_abstract.SetCondition(const c:TAsmCond);
|
|
begin
|
|
condition:=c;
|
|
end;
|
|
|
|
|
|
Function taicpu_abstract.getcopy:TLinkedListItem;
|
|
var
|
|
i : longint;
|
|
p : TLinkedListItem;
|
|
begin
|
|
p:=inherited getcopy;
|
|
{ make a copy of the references }
|
|
for i:=1 to ops do
|
|
if (taicpu_abstract(p).oper[i-1].typ=top_ref) then
|
|
begin
|
|
new(taicpu_abstract(p).oper[i-1].ref);
|
|
taicpu_abstract(p).oper[i-1].ref^:=oper[i-1].ref^;
|
|
end;
|
|
getcopy:=p;
|
|
end;
|
|
|
|
|
|
constructor taicpu_abstract.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
var
|
|
i : integer;
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
{ hopefully, we don't get problems with big/litte endian here when cross compiling :/ }
|
|
ppufile.getdata(condition,sizeof(tasmcond));
|
|
ops:=ppufile.getbyte;
|
|
for i:=1 to ops do
|
|
ppuloadoper(ppufile,oper[i-1]);
|
|
opcode:=tasmop(ppufile.getword);
|
|
{$ifdef i386}
|
|
ppufile.getdata(segprefix,sizeof(Tregister));
|
|
{$endif i386}
|
|
is_jmp:=boolean(ppufile.getbyte);
|
|
end;
|
|
|
|
|
|
procedure taicpu_abstract.ppuwrite(ppufile:tcompilerppufile);
|
|
var
|
|
i : integer;
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putdata(condition,sizeof(tasmcond));
|
|
ppufile.putbyte(ops);
|
|
for i:=1 to ops do
|
|
ppuwriteoper(ppufile,oper[i-1]);
|
|
ppufile.putword(word(opcode));
|
|
{$ifdef i386}
|
|
ppufile.putdata(segprefix,sizeof(Tregister));
|
|
{$endif i386}
|
|
ppufile.putbyte(byte(is_jmp));
|
|
end;
|
|
|
|
|
|
procedure taicpu_abstract.derefimpl;
|
|
|
|
var i:byte;
|
|
|
|
begin
|
|
for i:=1 to ops do
|
|
ppuderefoper(oper[i-1]);
|
|
end;
|
|
|
|
{****************************************************************************
|
|
tai_align_abstract
|
|
****************************************************************************}
|
|
|
|
constructor tai_align_abstract.Create(b: byte);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_align;
|
|
if b in [1,2,4,8,16,32] then
|
|
aligntype := b
|
|
else
|
|
aligntype := 1;
|
|
fillsize:=0;
|
|
fillop:=0;
|
|
use_op:=false;
|
|
end;
|
|
|
|
|
|
constructor tai_align_abstract.Create_op(b: byte; _op: byte);
|
|
begin
|
|
inherited Create;
|
|
typ:=ait_align;
|
|
if b in [1,2,4,8,16,32] then
|
|
aligntype := b
|
|
else
|
|
aligntype := 1;
|
|
fillsize:=0;
|
|
fillop:=_op;
|
|
use_op:=true;
|
|
end;
|
|
|
|
|
|
function tai_align_abstract.calculatefillbuf(var buf : tfillbuffer):pchar;
|
|
begin
|
|
fillchar(buf,high(buf),fillop);
|
|
calculatefillbuf:=pchar(@buf);
|
|
end;
|
|
|
|
|
|
constructor tai_align_abstract.ppuload(t:taitype;ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuload(t,ppufile);
|
|
aligntype:=ppufile.getbyte;
|
|
fillsize:=0;
|
|
fillop:=ppufile.getbyte;
|
|
use_op:=boolean(ppufile.getbyte);
|
|
end;
|
|
|
|
|
|
procedure tai_align_abstract.ppuwrite(ppufile:tcompilerppufile);
|
|
begin
|
|
inherited ppuwrite(ppufile);
|
|
ppufile.putbyte(aligntype);
|
|
ppufile.putbyte(fillop);
|
|
ppufile.putbyte(byte(use_op));
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
TAAsmOutput
|
|
*****************************************************************************}
|
|
|
|
constructor taasmoutput.create;
|
|
begin
|
|
inherited create;
|
|
{ make sure the optimizer won't remove the first tai of this list}
|
|
insert(tai_marker.create(marker_blockstart));
|
|
end;
|
|
|
|
function taasmoutput.getlasttaifilepos : pfileposinfo;
|
|
var
|
|
hp : tlinkedlistitem;
|
|
begin
|
|
getlasttaifilepos := nil;
|
|
if assigned(last) then
|
|
begin
|
|
{ find the last file information record }
|
|
if not (tai(last).typ in SkipLineInfo) then
|
|
getlasttaifilepos:=@tailineinfo(last).fileinfo
|
|
else
|
|
{ go through list backwards to find the first entry
|
|
with line information
|
|
}
|
|
begin
|
|
hp:=tai(last);
|
|
while assigned(hp) and (tai(hp).typ in SkipLineInfo) do
|
|
hp:=hp.Previous;
|
|
{ found entry }
|
|
if assigned(hp) then
|
|
getlasttaifilepos:=@tailineinfo(hp).fileinfo
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure Taasmoutput.convert_registers;
|
|
|
|
var p:Tai;
|
|
i:shortint;
|
|
r:Preference;
|
|
|
|
begin
|
|
p:=Tai(first);
|
|
while assigned(p) do
|
|
begin
|
|
case p.typ of
|
|
ait_regalloc:
|
|
convert_register_to_enum(Tai_regalloc(p).reg);
|
|
ait_instruction:
|
|
begin
|
|
for i:=0 to Taicpu_abstract(p).ops-1 do
|
|
if Taicpu_abstract(p).oper[i].typ=Top_reg then
|
|
begin
|
|
if Taicpu_abstract(p).oper[i].reg.enum=R_NO then
|
|
internalerror(200302052);
|
|
convert_register_to_enum(Taicpu_abstract(p).oper[i].reg)
|
|
end
|
|
else if Taicpu_abstract(p).oper[i].typ=Top_ref then
|
|
begin
|
|
r:=Taicpu_abstract(p).oper[i].ref;
|
|
{$ifdef i386}
|
|
convert_register_to_enum(r^.segment);
|
|
{$endif i386}
|
|
convert_register_to_enum(r^.base);
|
|
convert_register_to_enum(r^.index);
|
|
end;
|
|
{$ifdef i386}
|
|
convert_register_to_enum(Taicpu_abstract(p).segprefix);
|
|
{$endif}
|
|
end;
|
|
end;
|
|
p:=Tai(p.next);
|
|
end;
|
|
end;
|
|
|
|
procedure Taasmoutput.translate_registers(const table:Ttranstable);
|
|
|
|
var p,q:Tai;
|
|
i:shortint;
|
|
r:Preference;
|
|
|
|
begin
|
|
p:=Tai(first);
|
|
while assigned(p) do
|
|
begin
|
|
case p.typ of
|
|
ait_regalloc:
|
|
Tai_regalloc(p).reg.number:=(Tai_regalloc(p).reg.number and $ff) or
|
|
(table[Tai_regalloc(p).reg.number shr 8] shl 8);
|
|
ait_instruction:
|
|
begin
|
|
for i:=0 to Taicpu_abstract(p).ops-1 do
|
|
if Taicpu_abstract(p).oper[i].typ=Top_reg then
|
|
Taicpu_abstract(p).oper[i].reg.number:=(Taicpu_abstract(p).oper[i].reg.number and $ff) or
|
|
(table[Taicpu_abstract(p).oper[i].reg.number shr 8] shl 8)
|
|
else if Taicpu_abstract(p).oper[i].typ=Top_ref then
|
|
begin
|
|
r:=Taicpu_abstract(p).oper[i].ref;
|
|
if r^.base.number<>NR_NO then
|
|
r^.base.number:=(r^.base.number and $ff) or
|
|
(table[r^.base.number shr 8] shl 8);
|
|
if r^.index.number<>NR_NO then
|
|
r^.index.number:=(r^.index.number and $ff) or
|
|
(table[r^.index.number shr 8] shl 8);
|
|
end;
|
|
if Taicpu_abstract(p).is_nop then
|
|
begin
|
|
q:=p;
|
|
p:=Tai(p.next);
|
|
remove(q);
|
|
continue;
|
|
end;
|
|
end;
|
|
end;
|
|
p:=Tai(p.next);
|
|
end;
|
|
end;
|
|
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.34 2003-08-20 20:29:06 daniel
|
|
* Some more R_NO changes
|
|
* Preventive code to loadref added
|
|
|
|
Revision 1.33 2003/08/17 20:47:47 daniel
|
|
* Notranslation changed into -sr functionality
|
|
|
|
Revision 1.32 2003/08/17 16:59:20 jonas
|
|
* fixed regvars so they work with newra (at least for ppc)
|
|
* fixed some volatile register bugs
|
|
+ -dnotranslation option for -dnewra, which causes the registers not to
|
|
be translated from virtual to normal registers. Requires support in
|
|
the assembler writer as well, which is only implemented in aggas/
|
|
agppcgas currently
|
|
|
|
Revision 1.31 2003/08/11 21:18:20 peter
|
|
* start of sparc support for newra
|
|
|
|
Revision 1.30 2003/07/02 16:43:48 jonas
|
|
* always add dummy marker object at the start of an assembler list, so
|
|
the optimizer can't remove the first object
|
|
|
|
Revision 1.29 2003/06/03 13:01:59 daniel
|
|
* Register allocator finished
|
|
|
|
Revision 1.28 2003/05/12 18:13:57 peter
|
|
* create rtti label using newasmsymboldata and update binding
|
|
only when calling tai_symbol.create
|
|
* tai_symbol.create_global added
|
|
|
|
Revision 1.27 2003/04/25 20:59:33 peter
|
|
* removed funcretn,funcretsym, function result is now in varsym
|
|
and aliases for result and function name are added using absolutesym
|
|
* vs_hidden parameter for funcret passed in parameter
|
|
* vs_hidden fixes
|
|
* writenode changed to printnode and released from extdebug
|
|
* -vp option added to generate a tree.log with the nodetree
|
|
* nicer printnode for statements, callnode
|
|
|
|
Revision 1.26 2002/04/25 16:12:09 florian
|
|
* fixed more problems with cpubase and x86-64
|
|
|
|
Revision 1.25 2003/04/25 08:25:26 daniel
|
|
* Ifdefs around a lot of calls to cleartempgen
|
|
* Fixed registers that are allocated but not freed in several nodes
|
|
* Tweak to register allocator to cause less spills
|
|
* 8-bit registers now interfere with esi,edi and ebp
|
|
Compiler can now compile rtl successfully when using new register
|
|
allocator
|
|
|
|
Revision 1.24 2003/04/24 13:03:01 florian
|
|
* comp is now written with its bit pattern to the ppu instead as an extended
|
|
|
|
Revision 1.23 2003/04/22 14:33:38 peter
|
|
* removed some notes/hints
|
|
|
|
Revision 1.22 2003/04/22 10:09:34 daniel
|
|
+ Implemented the actual register allocator
|
|
+ Scratch registers unavailable when new register allocator used
|
|
+ maybe_save/maybe_restore unavailable when new register allocator used
|
|
|
|
Revision 1.21 2003/02/19 22:00:14 daniel
|
|
* Code generator converted to new register notation
|
|
- Horribily outdated todo.txt removed
|
|
|
|
Revision 1.20 2003/01/30 21:46:20 peter
|
|
* tai_const_symbol.createdataname added
|
|
|
|
Revision 1.19 2003/01/21 08:48:08 daniel
|
|
* Another 200301081 fixed
|
|
|
|
Revision 1.18 2003/01/09 20:40:59 daniel
|
|
* Converted some code in cgx86.pas to new register numbering
|
|
|
|
Revision 1.17 2003/01/09 15:49:56 daniel
|
|
* Added register conversion
|
|
|
|
Revision 1.16 2003/01/08 18:43:56 daniel
|
|
* Tregister changed into a record
|
|
|
|
Revision 1.15 2003/01/05 13:36:53 florian
|
|
* x86-64 compiles
|
|
+ very basic support for float128 type (x86-64 only)
|
|
|
|
Revision 1.14 2002/12/06 17:50:21 peter
|
|
* symbol count fix merged
|
|
|
|
Revision 1.13 2002/11/17 16:31:55 carl
|
|
* memory optimization (3-4%) : cleanup of tai fields,
|
|
cleanup of tdef and tsym fields.
|
|
* make it work for m68k
|
|
|
|
Revision 1.12 2002/11/15 16:29:30 peter
|
|
* made tasmsymbol.refs private (merged)
|
|
|
|
Revision 1.11 2002/11/15 01:58:45 peter
|
|
* merged changes from 1.0.7 up to 04-11
|
|
- -V option for generating bug report tracing
|
|
- more tracing for option parsing
|
|
- errors for cdecl and high()
|
|
- win32 import stabs
|
|
- win32 records<=8 are returned in eax:edx (turned off by default)
|
|
- heaptrc update
|
|
- more info for temp management in .s file with EXTDEBUG
|
|
|
|
Revision 1.10 2002/11/09 15:38:03 carl
|
|
+ NOOPT removed the optinfo field
|
|
|
|
Revision 1.9 2002/10/05 12:43:23 carl
|
|
* fixes for Delphi 6 compilation
|
|
(warning : Some features do not work under Delphi)
|
|
|
|
Revision 1.8 2002/08/19 19:36:42 peter
|
|
* More fixes for cross unit inlining, all tnodes are now implemented
|
|
* Moved pocall_internconst to po_internconst because it is not a
|
|
calling type at all and it conflicted when inlining of these small
|
|
functions was requested
|
|
|
|
Revision 1.7 2002/08/18 20:06:23 peter
|
|
* inlining is now also allowed in interface
|
|
* renamed write/load to ppuwrite/ppuload
|
|
* tnode storing in ppu
|
|
* nld,ncon,nbas are already updated for storing in ppu
|
|
|
|
Revision 1.6 2002/08/16 05:21:09 florian
|
|
* powerpc compilation fix
|
|
|
|
Revision 1.5 2002/08/15 19:10:35 peter
|
|
* first things tai,tnode storing in ppu
|
|
|
|
Revision 1.4 2002/08/11 14:32:25 peter
|
|
* renamed current_library to objectlibrary
|
|
|
|
Revision 1.3 2002/08/11 13:24:10 peter
|
|
* saving of asmsymbols in ppu supported
|
|
* asmsymbollist global is removed and moved into a new class
|
|
tasmlibrarydata that will hold the info of a .a file which
|
|
corresponds with a single module. Added librarydata to tmodule
|
|
to keep the library info stored for the module. In the future the
|
|
objectfiles will also be stored to the tasmlibrarydata class
|
|
* all getlabel/newasmsymbol and friends are moved to the new class
|
|
|
|
Revision 1.2 2002/08/05 18:27:48 carl
|
|
+ more more more documentation
|
|
+ first version include/exclude (can't test though, not enough scratch for i386 :()...
|
|
|
|
Revision 1.1 2002/07/01 18:46:20 peter
|
|
* internal linker
|
|
* reorganized aasm layer
|
|
|
|
Revision 1.27 2002/05/18 13:34:04 peter
|
|
* readded missing revisions
|
|
|
|
Revision 1.25 2002/05/14 19:34:38 peter
|
|
* removed old logs and updated copyright year
|
|
|
|
Revision 1.24 2002/05/14 17:28:08 peter
|
|
* synchronized cpubase between powerpc and i386
|
|
* moved more tables from cpubase to cpuasm
|
|
* tai_align_abstract moved to tainst, cpuasm must define
|
|
the tai_align class now, which may be empty
|
|
|
|
Revision 1.23 2002/04/15 18:54:34 carl
|
|
- removed tcpuflags
|
|
|
|
Revision 1.22 2002/04/07 13:18:19 carl
|
|
+ more documentation
|
|
|
|
Revision 1.21 2002/04/07 10:17:40 carl
|
|
- remove packenumfixed (requires version 1.0.2 or later to compile now!)
|
|
+ changing some comments so its commented automatically
|
|
|
|
Revision 1.20 2002/03/24 19:04:31 carl
|
|
+ patch for SPARC from Mazen NEIFER
|
|
|
|
}
|