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+ implemented bool_to_int and int_to_int (+ helper in nppcutil)
This commit is contained in:
Jonas Maebe
parent
fc6d300a95
commit
ca8623dfb6
238
compiler/powerpc/nppccnv.pas
Normal file
238
compiler/powerpc/nppccnv.pas
Normal file
@ -0,0 +1,238 @@
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{
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$Id$
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Copyright (c) 1998-2000 by Florian Klaempfl
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Generate PowerPC assembler for type converting 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 n386cnv;
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{$i defines.inc}
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interface
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uses
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node,ncnv,ncgcnv,types;
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type
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tppctypeconvnode = class(tcgtypeconvnode)
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protected
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procedure second_int_to_int;override;
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{ procedure second_string_to_string;override; }
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{ procedure second_cstring_to_pchar;override; }
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{ procedure second_string_to_chararray;override; }
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{ procedure second_array_to_pointer;override; }
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{ procedure second_pointer_to_array;override; }
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{ procedure second_chararray_to_string;override; }
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{ procedure second_char_to_string;override; }
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procedure second_int_to_real;override;
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procedure second_real_to_real;override;
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procedure second_cord_to_pointer;override;
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{ procedure second_proc_to_procvar;override; }
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{ procedure second_bool_to_int;override; }
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procedure second_int_to_bool;override;
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{ procedure second_load_smallset;override; }
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{ procedure second_ansistring_to_pchar;override; }
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{ procedure second_pchar_to_string;override; }
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{ procedure second_class_to_intf;override; }
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{ procedure second_char_to_char;override; }
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procedure pass_2;override;
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procedure second_call_helper(c : tconverttype);
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end;
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implementation
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uses
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verbose,globals,systems,
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symconst,symdef,aasm,
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cgbase,temp_gen,pass_2,
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ncon,ncal,
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cpubase,cpuasm,
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cga,tgcpu;
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{*****************************************************************************
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SecondTypeConv
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*****************************************************************************}
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procedure tppctypeconvnode.second_int_to_int;
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var
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fromsize,
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tosize : longint;
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opsize,
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tempsize : tcgsize;
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begin
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{ insert range check if not explicit conversion }
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if not(nf_explizit in flags) then
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emitrangecheck(left,resulttype.def);
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fromsize := left.resulttype.def.size;
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tosize := resulttype.def.size
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{ is the result size smaller ? }
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if tosize < fromsize then
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begin
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opsize := def_cgsize(resulttype.def);
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case left.location.loc of
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LOC_REGISTER,LOC_CREGISTER:
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begin
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if location = LOC_REGISTER then
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location.register:= left.location.register
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else
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location.register := getregister32;
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case opsize of
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OS_8:
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exprasmlist.concat(taicpu.op_reg_reg_const_const_const(
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A_RLWINM,location.register,left.location.register,
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0,24,31));
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OS_S8:
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exprasmlist.concat(taicpu.op_reg_reg(A_EXTSB,
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location.register,left.location.register));
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OS_16:
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exprasmlist.concat(taicpu.op_reg_reg_const_const_const(
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A_RLWINM,location.register,left.location.register,
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0,16,31));
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OS_S16:
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exprasmlist.concat(taicpu.op_reg_reg(A_EXTSH,
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location.register,left.location.register));
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else
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begin
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if location.register <> left.location.register then
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exprasmlist.concat(taicpu.op_reg_reg(A_MR,
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location.register,left.location.register));
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{ we can release the upper register }
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if opsize in [OS_64,OS_S64] then
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ungetregister(left.location.registerhigh);
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end;
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end;
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end;
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LOC_REFERENCE,LOC_MEM:
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begin
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set_location(location,left.location);
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increfofs(location.reference,fromsize-tosize);
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end;
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end;
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end
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{ is the result size bigger ? }
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else if resulttype.def.size>left.resulttype.def.size then
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begin
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opsize := def_cgsize(fromsize);
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location.loc := LOC_REGISTER;
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case left.location.loc of
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LOC_REFERENCE,LOC_MEM:
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begin
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del_reference(left.location.reference);
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location.register := getregister32;
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if not (opsize in [OS_64,OS_S64]) then
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tempsize := pred(opsize)
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else
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tempsize := opsize;
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{ this one takes care of the necessary sign extensions }
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cg.a_load_ref_reg(exprasmlist,tempsize,
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left.location.reference,location.register);
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ungetiftemp(left.location.reference);
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end;
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LOC_CREGISTER:
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{ since we only have 32bit registers and everything is }
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{ always loaded with sign-extending or zeroeing }
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{ instructions as appropriate, the source will contain }
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{ the correct value already, so simply copy it }
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begin
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location.register := getregister32;
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exprasmlist.concat(taicpu.op_reg_reg(A_MR,location.register,
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left.location.register));
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end;
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{ see LOC_CREGISTER }
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LOC_REGISTER:;
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end;
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{ sign extend even further if necessary }
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if opsize in [OS_64,OS_S64] then
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begin
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location.registerhigh := getregister32;
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if (opsize = OS_64) then
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cg.a_load_const_reg(exprasmlist,OS_32,0,
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location.registerhigh)
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else
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{ duplicate the sign bit 32 times in the high reg }
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exprasmlist.concat(taicpu.op_reg_reg_const(A_SRAWI,
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location.registerhigh,location.register,31));
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end;
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end;
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end;
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procedure tppctypeconvnode.second_int_to_bool;
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var
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hreg1,
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hreg2 : tregister;
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resflags : tresflags;
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opsize : tcgsize;
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begin
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clear_location(location);
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{ byte(boolean) or word(wordbool) or longint(longbool) must
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be accepted for var parameters }
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if (nf_explizit in flags) and
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(left.resulttype.def.size=resulttype.def.size) and
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(left.location.loc in [LOC_REFERENCE,LOC_MEM,LOC_CREGISTER]) then
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begin
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set_location(location,left.location);
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exit;
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end;
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location.loc:=LOC_REGISTER;
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opsize := def_cgsize(left.resulttype.def);
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case left.location.loc of
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LOC_MEM,LOC_REFERENCE,LOC_REGISTER,LOC_CREGISTER :
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begin
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if left.location.loc in [LOC_MEM,LOC_REFERENCE] then
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begin
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del_reference(left.location);
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hreg2:=getregister32;
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cg.a_load_ref_reg(exprasmlist,opsize,
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left.location.reference,hreg2);
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end
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else
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hreg2 := left.location.register;
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hreg1 := getregister32;
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exprasmlist.concat(taicpu.op_reg_reg_const(A_SUBIC,hreg1,
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hreg2,1);
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exprasmlist.concat(taicpu.op_reg_reg_reg(A_SUBFE,hreg1,hreg1,
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hreg2);
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ungetregister(hreg2);
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end;
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LOC_FLAGS :
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begin
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hreg1:=getregister32;
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resflags:=left.location.resflags;
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emit_flag2reg(resflags,hreg1);
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end;
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else
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internalerror(10062);
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end;
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location.register := hreg1;
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end;
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begin
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ctypeconvnode:=tppctypeconvnode;
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end.
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{
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$Log$
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Revision 1.1 2001-09-29 21:33:12 jonas
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+ implemented bool_to_int and int_to_int (+ helper in nppcutil)
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}
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73
compiler/powerpc/nppcutil.pas
Normal file
73
compiler/powerpc/nppcutil.pas
Normal file
@ -0,0 +1,73 @@
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{
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$Id$
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Copyright (c) 1998-2000 by Florian Klaempfl
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Helper routines for the PowerPC code generator
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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 n386util;
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{$i defines.inc}
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interface
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uses
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symtype,node,cpubase;
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procedure increfofs(var ref: treference; amount: longint);
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implementation
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uses
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globtype,globals,systems,verbose,
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cutils,
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aasm,cpuasm,
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symconst,symbase,symdef,symsym,symtable,
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{$ifdef GDB}
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gdb,
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{$endif GDB}
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types,
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ncon,nld,
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pass_1,pass_2,
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cgbase,tgcpu,temp_gen,
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cga,regvars,cgobj,cgcpu;
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procedure increfofs(var ref: treference; amount: longint);
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begin
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if (ref.index = R_NO) and
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((ref.offset + amount) >= low(smallint)) and
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((ref.offset + amount) <= high(smallint)) then
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inc(offset,amount)
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else
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begin
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cg.load_address_ref_reg(exprasmlist,ref,ref.base);
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ref.index := R_NO;
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ref.symbol := nil;
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ref.offset := amount;
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end;
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end.
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{
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$Log$
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Revision 1.1 2001-09-29 21:33:12 jonas
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+ implemented bool_to_int and int_to_int (+ helper in nppcutil)
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}
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