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https://gitlab.com/freepascal.org/fpc/source.git
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677 lines
25 KiB
ObjectPascal
677 lines
25 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1998-2002 by Florian Klaempfl and Carl Eric Codere
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Generate generic inline nodes
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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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unit ncginl;
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{$i fpcdefs.inc}
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interface
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uses
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node,ninl;
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type
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tcginlinenode = class(tinlinenode)
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procedure pass_2;override;
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procedure second_assigned;virtual; abstract;
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procedure second_assert;virtual;
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procedure second_sizeoftypeof;virtual;
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procedure second_length;virtual;
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procedure second_predsucc;virtual;
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procedure second_incdec;virtual;
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procedure second_typeinfo;virtual;
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procedure second_includeexclude;virtual;
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procedure second_pi; virtual;
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procedure second_arctan_real; virtual;
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procedure second_abs_real; virtual;
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procedure second_sqr_real; virtual;
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procedure second_sqrt_real; virtual;
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procedure second_ln_real; virtual;
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procedure second_cos_real; virtual;
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procedure second_sin_real; virtual;
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end;
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implementation
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uses
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globtype,systems,
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cutils,verbose,globals,fmodule,
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symconst,symdef,defbase,
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aasmbase,aasmtai,aasmcpu,
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cginfo,cgbase,pass_1,pass_2,
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cpubase,paramgr,
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nbas,ncon,ncal,ncnv,nld,
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cga,tgobj,ncgutil,cgobj,cg64f32,rgobj,rgcpu;
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{*****************************************************************************
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TCGINLINENODE
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*****************************************************************************}
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procedure tcginlinenode.pass_2;
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var
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asmop : tasmop;
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l : longint;
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oldpushedparasize : longint;
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begin
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{ save & reset pushedparasize }
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oldpushedparasize:=pushedparasize;
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pushedparasize:=0;
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case inlinenumber of
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in_assert_x_y:
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begin
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second_Assert;
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end;
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in_sizeof_x,
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in_typeof_x :
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begin
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second_SizeofTypeOf;
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end;
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in_length_x :
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begin
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second_Length;
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end;
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in_pred_x,
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in_succ_x:
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begin
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second_PredSucc;
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end;
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in_dec_x,
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in_inc_x :
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begin
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second_IncDec;
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end;
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in_typeinfo_x:
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begin
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second_TypeInfo;
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end;
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in_assigned_x :
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begin
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second_Assigned;
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end;
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in_include_x_y,
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in_exclude_x_y:
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begin
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second_IncludeExclude;
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end;
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in_pi:
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begin
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second_pi;
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end;
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in_sin_extended:
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begin
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second_sin_real;
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end;
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in_arctan_extended:
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begin
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second_arctan_real;
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end;
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in_abs_extended:
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begin
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second_abs_real;
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end;
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in_sqr_extended:
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begin
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second_sqr_real;
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end;
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in_sqrt_extended:
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begin
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second_sqrt_real;
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end;
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in_ln_extended:
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begin
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second_ln_real;
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end;
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in_cos_extended:
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begin
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second_cos_real;
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end;
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{$ifdef SUPPORT_MMX}
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in_mmx_pcmpeqb..in_mmx_pcmpgtw:
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begin
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location_reset(location,LOC_MMXREGISTER,OS_NO);
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if left.location.loc=LOC_REGISTER then
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begin
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{!!!!!!!}
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end
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else if tcallparanode(left).left.location.loc=LOC_REGISTER then
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begin
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{!!!!!!!}
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end
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else
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begin
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{!!!!!!!}
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end;
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end;
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{$endif SUPPORT_MMX}
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else internalerror(9);
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end;
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{ reset pushedparasize }
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pushedparasize:=oldpushedparasize;
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end;
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{*****************************************************************************
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ASSERT GENERIC HANDLING
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*****************************************************************************}
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procedure tcginlinenode.second_Assert;
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var
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hp2 : tstringconstnode;
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otlabel,oflabel{,l1} : tasmlabel;
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begin
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{ the node should be removed in the firstpass }
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if not (cs_do_assertion in aktlocalswitches) then
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internalerror(7123458);
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otlabel:=truelabel;
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oflabel:=falselabel;
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getlabel(truelabel);
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getlabel(falselabel);
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secondpass(tcallparanode(left).left);
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maketojumpbool(exprasmlist,tcallparanode(left).left,lr_load_regvars);
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cg.a_label(exprasmlist,falselabel);
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{ erroraddr }
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cg.a_param_reg(exprasmlist,OS_ADDR,FRAME_POINTER_REG,paramanager.getintparaloc(4));
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{ lineno }
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cg.a_param_const(exprasmlist,OS_INT,aktfilepos.line,paramanager.getintparaloc(3));
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{ filename string }
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hp2:=cstringconstnode.createstr(current_module.sourcefiles.get_file_name(aktfilepos.fileindex),st_shortstring);
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firstpass(hp2);
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secondpass(hp2);
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if codegenerror then
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exit;
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cg.a_paramaddr_ref(exprasmlist,hp2.location.reference,paramanager.getintparaloc(2));
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hp2.free;
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{ push msg }
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secondpass(tcallparanode(tcallparanode(left).right).left);
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cg.a_paramaddr_ref(exprasmlist,tcallparanode(tcallparanode(left).right).left.location.reference,paramanager.getintparaloc(1));
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{ call }
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cg.a_call_name(exprasmlist,'FPC_ASSERT');
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cg.a_label(exprasmlist,truelabel);
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truelabel:=otlabel;
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falselabel:=oflabel;
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end;
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{*****************************************************************************
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SIZEOF / TYPEOF GENERIC HANDLING
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*****************************************************************************}
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{ second_handle_ the sizeof and typeof routines }
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procedure tcginlinenode.second_SizeOfTypeOf;
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var
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href : treference;
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hregister : tregister;
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begin
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location_reset(location,LOC_REGISTER,OS_ADDR);
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{ for both cases load vmt }
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if left.nodetype=typen then
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begin
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hregister:=rg.getaddressregister(exprasmlist);
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reference_reset_symbol(href,newasmsymbol(tobjectdef(left.resulttype.def).vmt_mangledname),0);
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cg.a_loadaddr_ref_reg(exprasmlist,href,hregister);
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end
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else
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begin
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secondpass(left);
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location_release(exprasmlist,left.location);
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hregister:=rg.getaddressregister(exprasmlist);
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{ load VMT pointer }
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inc(left.location.reference.offset,tobjectdef(left.resulttype.def).vmt_offset);
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cg.a_load_ref_reg(exprasmlist,OS_ADDR,left.location.reference,hregister);
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end;
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{ in sizeof load size }
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if inlinenumber=in_sizeof_x then
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begin
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reference_reset_base(href,hregister,0);
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rg.ungetaddressregister(exprasmlist,hregister);
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hregister:=rg.getregisterint(exprasmlist);
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cg.a_load_ref_reg(exprasmlist,OS_INT,href,hregister);
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end;
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location.register:=hregister;
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end;
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{*****************************************************************************
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LENGTH GENERIC HANDLING
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*****************************************************************************}
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procedure tcginlinenode.second_Length;
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var
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lengthlab : tasmlabel;
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hregister : tregister;
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href : treference;
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begin
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secondpass(left);
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{ length in ansi strings is at offset -8 }
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if is_ansistring(left.resulttype.def) or
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is_widestring(left.resulttype.def) then
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begin
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location_force_reg(exprasmlist,left.location,OS_ADDR,false);
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hregister:=left.location.register;
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getlabel(lengthlab);
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cg.a_cmp_const_reg_label(exprasmlist,OS_ADDR,OC_EQ,0,hregister,lengthlab);
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reference_reset_base(href,hregister,-8);
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cg.a_load_ref_reg(exprasmlist,OS_32,href,hregister);
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cg.a_label(exprasmlist,lengthlab);
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location_reset(location,LOC_REGISTER,OS_32);
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location.register:=hregister;
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end
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else
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begin
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location_copy(location,left.location);
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location.size:=OS_8;
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end;
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end;
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{*****************************************************************************
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PRED/SUCC GENERIC HANDLING
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*****************************************************************************}
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procedure tcginlinenode.second_PredSucc;
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var
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cgsize : TCGSize;
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cgop : topcg;
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begin
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secondpass(left);
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if inlinenumber=in_pred_x then
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cgop:=OP_SUB
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else
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cgop:=OP_ADD;
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cgsize:=def_cgsize(resulttype.def);
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{ we need a value in a register }
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location_copy(location,left.location);
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location_force_reg(exprasmlist,location,cgsize,false);
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if cgsize in [OS_64,OS_S64] then
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cg64.a_op64_const_reg(exprasmlist,cgop,1,
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location.register64)
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else
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cg.a_op_const_reg(exprasmlist,cgop,1,location.register);
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cg.g_overflowcheck(exprasmlist,self);
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cg.g_rangecheck(exprasmlist,self,resulttype.def);
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end;
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{*****************************************************************************
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INC/DEC GENERIC HANDLING
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*****************************************************************************}
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procedure tcginlinenode.second_IncDec;
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const
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addsubop:array[in_inc_x..in_dec_x] of TOpCG=(OP_ADD,OP_SUB);
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var
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addvalue : longint;
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addconstant : boolean;
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hregisterhi,
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hregister : tregister;
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cgsize : tcgsize;
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pushedregs : tmaybesave;
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begin
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{ set defaults }
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addconstant:=true;
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{ load first parameter, must be a reference }
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secondpass(tcallparanode(left).left);
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cgsize:=def_cgsize(tcallparanode(left).left.resulttype.def);
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{ get addvalue }
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case tcallparanode(left).left.resulttype.def.deftype of
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orddef,
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enumdef :
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addvalue:=1;
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pointerdef :
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begin
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if is_void(tpointerdef(tcallparanode(left).left.resulttype.def).pointertype.def) then
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addvalue:=1
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else
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addvalue:=tpointerdef(tcallparanode(left).left.resulttype.def).pointertype.def.size;
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end;
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else
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internalerror(10081);
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end;
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{ second_ argument specified?, must be a s32bit in register }
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if assigned(tcallparanode(left).right) then
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begin
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maybe_save(exprasmlist,tcallparanode(tcallparanode(left).right).left.registers32,
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tcallparanode(left).left.location,pushedregs);
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secondpass(tcallparanode(tcallparanode(left).right).left);
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maybe_restore(exprasmlist,tcallparanode(left).left.location,pushedregs);
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{ when constant, just multiply the addvalue }
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if is_constintnode(tcallparanode(tcallparanode(left).right).left) then
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addvalue:=addvalue*get_ordinal_value(tcallparanode(tcallparanode(left).right).left)
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else
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begin
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location_force_reg(exprasmlist,tcallparanode(tcallparanode(left).right).left.location,cgsize,false);
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hregister:=tcallparanode(tcallparanode(left).right).left.location.register;
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hregisterhi:=tcallparanode(tcallparanode(left).right).left.location.registerhigh;
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{ insert multiply with addvalue if its >1 }
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if addvalue>1 then
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cg.a_op_const_reg(exprasmlist,OP_IMUL,addvalue,hregister);
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addconstant:=false;
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end;
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end;
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{ write the add instruction }
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if addconstant then
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begin
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if cgsize in [OS_64,OS_S64] then
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cg64.a_op64_const_loc(exprasmlist,addsubop[inlinenumber],
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addvalue,tcallparanode(left).left.location)
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else
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cg.a_op_const_loc(exprasmlist,addsubop[inlinenumber],
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addvalue,tcallparanode(left).left.location);
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end
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else
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begin
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if cgsize in [OS_64,OS_S64] then
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cg64.a_op64_reg_loc(exprasmlist,addsubop[inlinenumber],
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joinreg64(hregister,hregisterhi),tcallparanode(left).left.location)
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else
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cg.a_op_reg_loc(exprasmlist,addsubop[inlinenumber],
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hregister,tcallparanode(left).left.location);
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location_release(exprasmlist,tcallparanode(tcallparanode(left).right).left.location);
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end;
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cg.g_overflowcheck(exprasmlist,tcallparanode(left).left);
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cg.g_rangecheck(exprasmlist,tcallparanode(left).left,tcallparanode(left).left.resulttype.def);
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end;
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{*****************************************************************************
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TYPEINFO GENERIC HANDLING
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*****************************************************************************}
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procedure tcginlinenode.second_typeinfo;
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var
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href : treference;
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begin
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location_reset(location,LOC_REGISTER,OS_ADDR);
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location.register:=rg.getaddressregister(exprasmlist);
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reference_reset_symbol(href,tstoreddef(ttypenode(tcallparanode(left).left).resulttype.def).get_rtti_label(fullrtti),0);
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cg.a_loadaddr_ref_reg(exprasmlist,href,location.register);
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end;
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{*****************************************************************************
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ASSIGNED GENERIC HANDLING
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*****************************************************************************}
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(*
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procedure tcginlinenode.second_Assigned;
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var
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hreg : tregister;
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ptrvalidlabel : tasmlabel;
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begin
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secondpass(tcallparanode(left).left);
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location_release(exprasmlist,tcallparanode(left).left.location);
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hreg := rg.getregisterint(exprasmlist);
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if (tcallparanode(left).left.location.loc in [LOC_REGISTER,LOC_CREGISTER]) then
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begin
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{ if pointer is non-nil, and is in register, this directly the value we can use }
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cg.a_load_reg_reg(exprasmlist, OS_ADDR, tcallparanode(left).left.location.register, hreg);
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end
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else
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begin
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getlabel(ptrvalidlabel);
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cg.a_load_const_reg(exprasmlist, OS_INT, 1, hreg);
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cg.a_cmp_const_ref_label(exprasmlist, OS_ADDR, OC_NE, 0,
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tcallparanode(left).left.location.reference, ptrvalidlabel);
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cg.a_load_const_reg(exprasmlist, OS_INT, 0, hreg);
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cg.a_label(exprasmlist,ptrvalidlabel);
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end;
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location.register := hreg;
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location_reset(location,LOC_REGISTER,OS_INT);
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WriteLn('Exiting assigned node!');
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end;
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*)
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{*****************************************************************************
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INCLUDE/EXCLUDE GENERIC HANDLING
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*****************************************************************************}
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procedure tcginlinenode.second_IncludeExclude;
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var
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scratch_reg : boolean;
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hregister : tregister;
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asmop : tasmop;
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L : longint;
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pushedregs : TMaybesave;
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cgop : topcg;
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addrreg, hregister2: tregister;
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use_small : boolean;
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cgsize : tcgsize;
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href : treference;
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begin
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location_copy(location,left.location);
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secondpass(tcallparanode(left).left);
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if tcallparanode(tcallparanode(left).right).left.nodetype=ordconstn then
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begin
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{ calculate bit position }
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l:=1 shl (tordconstnode(tcallparanode(tcallparanode(left).right).left).value mod 32);
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{ determine operator }
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if inlinenumber=in_include_x_y then
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cgop:=OP_OR
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else
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begin
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cgop:=OP_AND;
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l:=not(l);
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end;
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if (tcallparanode(left).left.location.loc=LOC_REFERENCE) then
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begin
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inc(tcallparanode(left).left.location.reference.offset,
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(tordconstnode(tcallparanode(tcallparanode(left).right).left).value div 32)*4);
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cg.a_op_const_ref(exprasmlist,cgop,OS_INT,l,tcallparanode(left).left.location.reference);
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location_release(exprasmlist,tcallparanode(left).left.location);
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end
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else
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{ LOC_CREGISTER }
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begin
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cg.a_op_const_reg(exprasmlist,cgop,l,tcallparanode(left).left.location.register);
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end;
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end
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else
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begin
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use_small:=
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{ set type }
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(tsetdef(tcallparanode(left).left.resulttype.def).settype=smallset)
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and
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{ elemenut number between 1 and 32 }
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((tcallparanode(tcallparanode(left).right).left.resulttype.def.deftype=orddef) and
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(torddef(tcallparanode(tcallparanode(left).right).left.resulttype.def).high<=32) or
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(tcallparanode(tcallparanode(left).right).left.resulttype.def.deftype=enumdef) and
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(tenumdef(tcallparanode(tcallparanode(left).right).left.resulttype.def).max<=32));
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|
|
{ generate code for the element to set }
|
|
maybe_save(exprasmlist,tcallparanode(tcallparanode(left).right).left.registers32,
|
|
tcallparanode(left).left.location,pushedregs);
|
|
secondpass(tcallparanode(tcallparanode(left).right).left);
|
|
maybe_restore(exprasmlist,tcallparanode(left).left.location,pushedregs);
|
|
|
|
{ bitnumber - which must be loaded into register }
|
|
hregister := cg.get_scratch_reg_int(exprasmlist);
|
|
hregister2 := rg.getregisterint(exprasmlist);
|
|
|
|
case tcallparanode(tcallparanode(left).right).left.location.loc of
|
|
LOC_CREGISTER,
|
|
LOC_REGISTER:
|
|
begin
|
|
cg.a_load_reg_reg(exprasmlist,OS_INT,
|
|
tcallparanode(tcallparanode(left).right).left.location.register,hregister);
|
|
end;
|
|
LOC_REFERENCE:
|
|
begin
|
|
cgsize := def_cgsize(tcallparanode(tcallparanode(left).right).left.resulttype.def);
|
|
cg.a_load_ref_reg(exprasmlist,cgsize,
|
|
tcallparanode(tcallparanode(left).right).left.location.reference,hregister);
|
|
end;
|
|
else
|
|
internalerror(20020727);
|
|
end;
|
|
{ hregister contains the bitnumber to add }
|
|
cg.a_load_const_reg(exprasmlist, OS_INT, 1, hregister2);
|
|
cg.a_op_reg_reg(exprasmlist, OP_SHL, OS_INT, hregister, hregister2);
|
|
|
|
|
|
if use_small then
|
|
begin
|
|
{ possiblities :
|
|
bitnumber : LOC_REFERENCE, LOC_REGISTER, LOC_CREGISTER
|
|
set value : LOC_REFERENCE, LOC_REGISTER
|
|
}
|
|
{ location of set }
|
|
if (tcallparanode(left).left.location.loc=LOC_REFERENCE) then
|
|
begin
|
|
if inlinenumber=in_include_x_y then
|
|
begin
|
|
cg.a_op_reg_ref(exprasmlist, OP_OR, OS_32, hregister2,
|
|
tcallparanode(left).left.location.reference);
|
|
end
|
|
else
|
|
begin
|
|
cg.a_op_reg_reg(exprasmlist, OP_NOT, OS_32, hregister2,
|
|
hregister2);
|
|
cg.a_op_reg_ref(exprasmlist, OP_AND, OS_32, hregister2,
|
|
tcallparanode(left).left.location.reference);
|
|
end;
|
|
|
|
end
|
|
else
|
|
internalerror(20020728);
|
|
end
|
|
else
|
|
begin
|
|
{ possiblities :
|
|
bitnumber : LOC_REFERENCE, LOC_REGISTER, LOC_CREGISTER
|
|
set value : LOC_REFERENCE
|
|
}
|
|
{ hregister contains the bitnumber (div 32 to get the correct offset) }
|
|
cg.a_op_const_reg(exprasmlist, OP_SHR, 5, hregister);
|
|
addrreg := cg.get_scratch_reg_address(exprasmlist);
|
|
{ calculate the correct address of the operand }
|
|
cg.a_loadaddr_ref_reg(exprasmlist, tcallparanode(left).left.location.reference,addrreg);
|
|
cg.a_op_reg_reg(exprasmlist, OP_ADD, OS_INT, hregister, addrreg);
|
|
reference_reset_base(href,addrreg,0);
|
|
|
|
if inlinenumber=in_include_x_y then
|
|
begin
|
|
cg.a_op_reg_ref(exprasmlist, OP_OR, OS_32, hregister2, href);
|
|
end
|
|
else
|
|
begin
|
|
cg.a_op_reg_reg(exprasmlist, OP_NOT, OS_32, hregister2, hregister2);
|
|
cg.a_op_reg_ref(exprasmlist, OP_AND, OS_32, hregister2, href);
|
|
end;
|
|
|
|
cg.free_scratch_reg(exprasmlist, addrreg);
|
|
end;
|
|
cg.free_scratch_reg(exprasmlist,hregister);
|
|
rg.ungetregisterint(exprasmlist,hregister2);
|
|
end;
|
|
end;
|
|
|
|
{*****************************************************************************
|
|
FLOAT GENERIC HANDLING
|
|
*****************************************************************************}
|
|
|
|
{
|
|
These routines all call internal RTL routines, so if they are
|
|
called here, they give an internal error
|
|
}
|
|
procedure tcginlinenode.second_pi;
|
|
begin
|
|
internalerror(20020718);
|
|
end;
|
|
|
|
procedure tcginlinenode.second_arctan_real;
|
|
begin
|
|
internalerror(20020718);
|
|
end;
|
|
|
|
procedure tcginlinenode.second_abs_real;
|
|
begin
|
|
internalerror(20020718);
|
|
end;
|
|
|
|
|
|
procedure tcginlinenode.second_sqr_real;
|
|
begin
|
|
internalerror(20020718);
|
|
end;
|
|
|
|
procedure tcginlinenode.second_sqrt_real;
|
|
begin
|
|
internalerror(20020718);
|
|
end;
|
|
|
|
procedure tcginlinenode.second_ln_real;
|
|
begin
|
|
internalerror(20020718);
|
|
end;
|
|
|
|
procedure tcginlinenode.second_cos_real;
|
|
begin
|
|
internalerror(20020718);
|
|
end;
|
|
|
|
procedure tcginlinenode.second_sin_real;
|
|
begin
|
|
internalerror(20020718);
|
|
end;
|
|
|
|
begin
|
|
cinlinenode:=tcginlinenode;
|
|
end.
|
|
|
|
{
|
|
$Log$
|
|
Revision 1.10 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 1.9 2002/08/04 19:06:41 carl
|
|
+ added generic exception support (still does not work!)
|
|
+ more documentation
|
|
|
|
Revision 1.8 2002/07/31 07:54:59 jonas
|
|
* re-enabled second_assigned()
|
|
|
|
Revision 1.7 2002/07/30 20:50:43 florian
|
|
* the code generator knows now if parameters are in registers
|
|
|
|
Revision 1.6 2002/07/29 21:23:42 florian
|
|
* more fixes for the ppc
|
|
+ wrappers for the tcnvnode.first_* stuff introduced
|
|
|
|
Revision 1.5 2002/07/28 20:45:22 florian
|
|
+ added direct assembler reader for PowerPC
|
|
|
|
Revision 1.4 2002/07/26 09:45:20 florian
|
|
* fixed a mistake in yesterday's commit, forgot to commit it
|
|
|
|
Revision 1.3 2002/07/25 22:58:30 florian
|
|
no message
|
|
|
|
Revision 1.2 2002/07/25 17:55:41 carl
|
|
+ First working revision
|
|
|
|
Revision 1.1 2002/07/24 04:07:49 carl
|
|
+ first revision (incomplete)
|
|
}
|