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https://gitlab.com/freepascal.org/fpc/source.git
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2313 lines
104 KiB
ObjectPascal
2313 lines
104 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1998-2000 by Florian Klaempfl
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Generate i386 assembler for in add node
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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 cg386add;
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interface
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{$define usecreateset}
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uses
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tree;
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procedure secondadd(var p : ptree);
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implementation
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uses
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globtype,systems,
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cobjects,verbose,globals,
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symconst,symtable,aasm,types,
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hcodegen,temp_gen,pass_2,
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cpubase,cpuasm,
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cgai386,tgeni386;
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{*****************************************************************************
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Helpers
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*****************************************************************************}
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procedure locflags2reg(var l:tlocation;opsize:topsize);
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var
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hregister : tregister;
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begin
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if (l.loc=LOC_FLAGS) then
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begin
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case opsize of
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S_L : hregister:=getregister32;
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S_W : hregister:=reg32toreg16(getregister32);
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S_B : hregister:=reg32toreg8(getregister32);
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end;
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emit_flag2reg(l.resflags,hregister);
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l.loc:=LOC_REGISTER;
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l.register:=hregister;
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end;
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end;
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function getresflags(p : ptree;unsigned : boolean) : tresflags;
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begin
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if not(unsigned) then
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begin
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if p^.swaped then
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case p^.treetype of
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equaln : getresflags:=F_E;
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unequaln : getresflags:=F_NE;
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ltn : getresflags:=F_G;
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lten : getresflags:=F_GE;
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gtn : getresflags:=F_L;
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gten : getresflags:=F_LE;
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end
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else
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case p^.treetype of
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equaln : getresflags:=F_E;
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unequaln : getresflags:=F_NE;
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ltn : getresflags:=F_L;
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lten : getresflags:=F_LE;
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gtn : getresflags:=F_G;
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gten : getresflags:=F_GE;
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end;
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end
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else
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begin
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if p^.swaped then
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case p^.treetype of
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equaln : getresflags:=F_E;
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unequaln : getresflags:=F_NE;
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ltn : getresflags:=F_A;
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lten : getresflags:=F_AE;
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gtn : getresflags:=F_B;
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gten : getresflags:=F_BE;
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end
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else
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case p^.treetype of
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equaln : getresflags:=F_E;
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unequaln : getresflags:=F_NE;
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ltn : getresflags:=F_B;
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lten : getresflags:=F_BE;
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gtn : getresflags:=F_A;
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gten : getresflags:=F_AE;
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end;
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end;
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end;
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procedure SetResultLocation(cmpop,unsigned:boolean;var p :ptree);
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begin
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{ remove temporary location if not a set or string }
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{ that's a bad hack (FK) who did this ? }
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if (p^.left^.resulttype^.deftype<>stringdef) and
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((p^.left^.resulttype^.deftype<>setdef) or (psetdef(p^.left^.resulttype)^.settype=smallset)) and
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(p^.left^.location.loc in [LOC_MEM,LOC_REFERENCE]) then
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ungetiftemp(p^.left^.location.reference);
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if (p^.right^.resulttype^.deftype<>stringdef) and
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((p^.right^.resulttype^.deftype<>setdef) or (psetdef(p^.right^.resulttype)^.settype=smallset)) and
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(p^.right^.location.loc in [LOC_MEM,LOC_REFERENCE]) then
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ungetiftemp(p^.right^.location.reference);
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{ in case of comparison operation the put result in the flags }
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if cmpop then
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begin
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clear_location(p^.location);
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p^.location.loc:=LOC_FLAGS;
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p^.location.resflags:=getresflags(p,unsigned);
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end;
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end;
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{*****************************************************************************
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Addstring
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*****************************************************************************}
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procedure addstring(var p : ptree);
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var
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pushedregs : tpushed;
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href : treference;
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pushed,
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cmpop : boolean;
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begin
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{ string operations are not commutative }
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if p^.swaped then
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swaptree(p);
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case pstringdef(p^.left^.resulttype)^.string_typ of
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st_ansistring:
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begin
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case p^.treetype of
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addn:
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begin
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cmpop:=false;
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secondpass(p^.left);
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{ to avoid problem with maybe_push and restore }
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set_location(p^.location,p^.left^.location);
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pushed:=maybe_push(p^.right^.registers32,p,false);
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secondpass(p^.right);
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if pushed then
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begin
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restore(p,false);
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set_location(p^.left^.location,p^.location);
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end;
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{ get the temp location, must be done before regs are
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released/pushed because after the release the regs are
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still used for the push (PFV) }
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clear_location(p^.location);
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p^.location.loc:=LOC_MEM;
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gettempansistringreference(p^.location.reference);
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decrstringref(cansistringdef,p^.location.reference);
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{ release used registers }
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del_location(p^.right^.location);
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del_location(p^.left^.location);
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{ push the still used registers }
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pushusedregisters(pushedregs,$ff);
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{ push data }
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emitpushreferenceaddr(p^.location.reference);
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emit_push_loc(p^.right^.location);
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emit_push_loc(p^.left^.location);
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emitcall('FPC_ANSISTR_CONCAT');
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popusedregisters(pushedregs);
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maybe_loadesi;
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ungetiftempansi(p^.left^.location.reference);
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ungetiftempansi(p^.right^.location.reference);
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end;
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ltn,lten,gtn,gten,
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equaln,unequaln:
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begin
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cmpop:=true;
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secondpass(p^.left);
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pushed:=maybe_push(p^.right^.registers32,p^.left,false);
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secondpass(p^.right);
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if pushed then
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restore(p^.left,false);
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{ release used registers }
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del_location(p^.right^.location);
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del_location(p^.left^.location);
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{ push the still used registers }
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pushusedregisters(pushedregs,$ff);
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{ push data }
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case p^.right^.location.loc of
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LOC_REFERENCE,LOC_MEM:
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emit_push_mem(p^.right^.location.reference);
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LOC_REGISTER,LOC_CREGISTER:
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emit_reg(A_PUSH,S_L,p^.right^.location.register);
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end;
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case p^.left^.location.loc of
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LOC_REFERENCE,LOC_MEM:
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emit_push_mem(p^.left^.location.reference);
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LOC_REGISTER,LOC_CREGISTER:
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emit_reg(A_PUSH,S_L,p^.left^.location.register);
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end;
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emitcall('FPC_ANSISTR_COMPARE');
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emit_reg_reg(A_OR,S_L,R_EAX,R_EAX);
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popusedregisters(pushedregs);
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maybe_loadesi;
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ungetiftempansi(p^.left^.location.reference);
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ungetiftempansi(p^.right^.location.reference);
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end;
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end;
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{ the result of ansicompare is signed }
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SetResultLocation(cmpop,false,p);
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end;
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st_shortstring:
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begin
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case p^.treetype of
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addn:
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begin
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cmpop:=false;
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secondpass(p^.left);
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{ if str_concat is set in expr
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s:=s+ ... no need to create a temp string (PM) }
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if (p^.left^.treetype<>addn) and not (p^.use_strconcat) then
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begin
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{ can only reference be }
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{ string in register would be funny }
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{ therefore produce a temporary string }
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gettempofsizereference(256,href);
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copyshortstring(href,p^.left^.location.reference,255,false);
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{ release the registers }
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del_reference(p^.left^.location.reference);
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ungetiftemp(p^.left^.location.reference);
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{ does not hurt: }
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clear_location(p^.left^.location);
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p^.left^.location.loc:=LOC_MEM;
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p^.left^.location.reference:=href;
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end;
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secondpass(p^.right);
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{ on the right we do not need the register anymore too }
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{$IfNDef regallocfix}
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del_reference(p^.right^.location.reference);
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pushusedregisters(pushedregs,$ff);
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{$Else regallocfix}
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pushusedregisters(pushedregs,$ff
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xor ($80 shr byte(p^.right^.location.reference.base))
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xor ($80 shr byte(p^.right^.location.reference.index)));
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{$EndIf regallocfix}
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emitpushreferenceaddr(p^.left^.location.reference);
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emitpushreferenceaddr(p^.right^.location.reference);
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{$IfDef regallocfix}
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del_reference(p^.right^.location.reference);
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{$EndIf regallocfix}
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emitcall('FPC_SHORTSTR_CONCAT');
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maybe_loadesi;
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popusedregisters(pushedregs);
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set_location(p^.location,p^.left^.location);
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ungetiftemp(p^.right^.location.reference);
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end;
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ltn,lten,gtn,gten,
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equaln,unequaln :
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begin
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cmpop:=true;
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{ generate better code for s='' and s<>'' }
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if (p^.treetype in [equaln,unequaln]) and
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(((p^.left^.treetype=stringconstn) and (str_length(p^.left)=0)) or
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((p^.right^.treetype=stringconstn) and (str_length(p^.right)=0))) then
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begin
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secondpass(p^.left);
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{ are too few registers free? }
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pushed:=maybe_push(p^.right^.registers32,p^.left,false);
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secondpass(p^.right);
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if pushed then
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restore(p^.left,false);
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{ only one node can be stringconstn }
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{ else pass 1 would have evaluted }
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{ this node }
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if p^.left^.treetype=stringconstn then
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emit_const_ref(
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A_CMP,S_B,0,newreference(p^.right^.location.reference))
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else
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emit_const_ref(
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A_CMP,S_B,0,newreference(p^.left^.location.reference));
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del_reference(p^.right^.location.reference);
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del_reference(p^.left^.location.reference);
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end
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else
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begin
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pushusedregisters(pushedregs,$ff);
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secondpass(p^.left);
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emitpushreferenceaddr(p^.left^.location.reference);
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del_reference(p^.left^.location.reference);
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secondpass(p^.right);
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emitpushreferenceaddr(p^.right^.location.reference);
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del_reference(p^.right^.location.reference);
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emitcall('FPC_SHORTSTR_COMPARE');
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maybe_loadesi;
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popusedregisters(pushedregs);
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end;
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ungetiftemp(p^.left^.location.reference);
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ungetiftemp(p^.right^.location.reference);
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end;
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else CGMessage(type_e_mismatch);
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end;
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SetResultLocation(cmpop,true,p);
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end;
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end;
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end;
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{*****************************************************************************
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Addset
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*****************************************************************************}
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procedure addset(var p : ptree);
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var
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createset,
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cmpop,
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pushed : boolean;
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href : treference;
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pushedregs : tpushed;
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begin
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cmpop:=false;
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{ not commutative }
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if p^.swaped then
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swaptree(p);
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{ optimize first loading of a set }
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{$ifdef usecreateset}
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if (p^.right^.treetype=setelementn) and
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not(assigned(p^.right^.right)) and
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is_emptyset(p^.left) then
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createset:=true
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else
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{$endif}
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begin
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createset:=false;
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secondpass(p^.left);
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end;
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{ are too few registers free? }
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pushed:=maybe_push(p^.right^.registers32,p^.left,false);
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secondpass(p^.right);
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if codegenerror then
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exit;
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if pushed then
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restore(p^.left,false);
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set_location(p^.location,p^.left^.location);
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{ handle operations }
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{$IfDef regallocfix}
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pushusedregisters(pushedregs,$ff
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xor ($80 shr byte(p^.left^.location.reference.base))
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xor ($80 shr byte(p^.left^.location.reference.index))
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xor ($80 shr byte(p^.right^.location.reference.base))
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xor ($80 shr byte(p^.right^.location.reference.index)));
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{$EndIf regallocfix}
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case p^.treetype of
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equaln,
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unequaln
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{$IfNDef NoSetInclusion}
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,lten, gten
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{$EndIf NoSetInclusion}
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: begin
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cmpop:=true;
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del_location(p^.left^.location);
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del_location(p^.right^.location);
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pushusedregisters(pushedregs,$ff);
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{$IfNDef NoSetInclusion}
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If (p^.treetype in [equaln, unequaln, lten]) Then
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Begin
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{$EndIf NoSetInclusion}
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emitpushreferenceaddr(p^.right^.location.reference);
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emitpushreferenceaddr(p^.left^.location.reference);
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{$IfNDef NoSetInclusion}
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End
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Else {gten = lten, if the arguments are reversed}
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Begin
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emitpushreferenceaddr(p^.left^.location.reference);
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emitpushreferenceaddr(p^.right^.location.reference);
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End;
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Case p^.treetype of
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equaln, unequaln:
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{$EndIf NoSetInclusion}
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emitcall('FPC_SET_COMP_SETS');
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{$IfNDef NoSetInclusion}
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lten, gten:
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Begin
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emitcall('FPC_SET_CONTAINS_SETS');
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{ we need a jne afterwards, not a jnbe/jnae }
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p^.treetype := equaln;
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End;
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End;
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{$EndIf NoSetInclusion}
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maybe_loadesi;
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popusedregisters(pushedregs);
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ungetiftemp(p^.left^.location.reference);
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ungetiftemp(p^.right^.location.reference);
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end;
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addn : begin
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{ add can be an other SET or Range or Element ! }
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{$IfNDef regallocfix}
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del_location(p^.left^.location);
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{ del_location(p^.right^.location);
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done in pushsetelement below PM }
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del_location(p^.right^.location);
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pushusedregisters(pushedregs,$ff);
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{$EndIf regallocfix}
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href.symbol:=nil;
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gettempofsizereference(32,href);
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if createset then
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begin
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{$IfDef regallocfix}
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del_location(p^.left^.location);
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{ del_location(p^.right^.location);
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done in pushsetelement below PM }
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{$EndIf regallocfix}
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pushsetelement(p^.right^.left);
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emitpushreferenceaddr(href);
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emitcall('FPC_SET_CREATE_ELEMENT');
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end
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else
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begin
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{ add a range or a single element? }
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if p^.right^.treetype=setelementn then
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begin
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{$IfNDef regallocfix}
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concatcopy(p^.left^.location.reference,href,32,false,false);
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{$Else regallocfix}
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concatcopy(p^.left^.location.reference,href,32,true,false);
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{$EndIf regallocfix}
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if assigned(p^.right^.right) then
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begin
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pushsetelement(p^.right^.right);
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pushsetelement(p^.right^.left);
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emitpushreferenceaddr(href);
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emitcall('FPC_SET_SET_RANGE');
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end
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else
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begin
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pushsetelement(p^.right^.left);
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emitpushreferenceaddr(href);
|
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emitcall('FPC_SET_SET_BYTE');
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end;
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end
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else
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begin
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{ must be an other set }
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emitpushreferenceaddr(href);
|
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emitpushreferenceaddr(p^.right^.location.reference);
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{$IfDef regallocfix}
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del_location(p^.right^.location);
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{$EndIf regallocfix}
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emitpushreferenceaddr(p^.left^.location.reference);
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{$IfDef regallocfix}
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del_location(p^.left^.location);
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{$EndIf regallocfix}
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emitcall('FPC_SET_ADD_SETS');
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end;
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end;
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maybe_loadesi;
|
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popusedregisters(pushedregs);
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ungetiftemp(p^.left^.location.reference);
|
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ungetiftemp(p^.right^.location.reference);
|
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p^.location.loc:=LOC_MEM;
|
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p^.location.reference:=href;
|
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end;
|
|
subn,
|
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symdifn,
|
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muln : begin
|
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{$IfNDef regallocfix}
|
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del_location(p^.left^.location);
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del_location(p^.right^.location);
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pushusedregisters(pushedregs,$ff);
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{$EndIf regallocfix}
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href.symbol:=nil;
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gettempofsizereference(32,href);
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emitpushreferenceaddr(href);
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emitpushreferenceaddr(p^.right^.location.reference);
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{$IfDef regallocfix}
|
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del_location(p^.right^.location);
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{$EndIf regallocfix}
|
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emitpushreferenceaddr(p^.left^.location.reference);
|
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{$IfDef regallocfix}
|
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del_location(p^.left^.location);
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{$EndIf regallocfix}
|
|
case p^.treetype of
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subn : emitcall('FPC_SET_SUB_SETS');
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symdifn : emitcall('FPC_SET_SYMDIF_SETS');
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muln : emitcall('FPC_SET_MUL_SETS');
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end;
|
|
maybe_loadesi;
|
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popusedregisters(pushedregs);
|
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ungetiftemp(p^.left^.location.reference);
|
|
ungetiftemp(p^.right^.location.reference);
|
|
p^.location.loc:=LOC_MEM;
|
|
p^.location.reference:=href;
|
|
end;
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
SetResultLocation(cmpop,true,p);
|
|
end;
|
|
|
|
|
|
{*****************************************************************************
|
|
SecondAdd
|
|
*****************************************************************************}
|
|
|
|
procedure secondadd(var p : ptree);
|
|
{ is also being used for xor, and "mul", "sub, or and comparative }
|
|
{ operators }
|
|
|
|
label do_normal;
|
|
|
|
var
|
|
hregister,hregister2 : tregister;
|
|
noswap,popeax,popedx,
|
|
pushed,mboverflow,cmpop : boolean;
|
|
op,op2 : tasmop;
|
|
flags : tresflags;
|
|
otl,ofl,hl : pasmlabel;
|
|
power : longint;
|
|
opsize : topsize;
|
|
hl4: pasmlabel;
|
|
hr : preference;
|
|
|
|
{ true, if unsigned types are compared }
|
|
unsigned : boolean;
|
|
{ true, if a small set is handled with the longint code }
|
|
is_set : boolean;
|
|
{ is_in_dest if the result is put directly into }
|
|
{ the resulting refernce or varregister }
|
|
is_in_dest : boolean;
|
|
{ true, if for sets subtractions the extra not should generated }
|
|
extra_not : boolean;
|
|
|
|
{$ifdef SUPPORT_MMX}
|
|
mmxbase : tmmxtype;
|
|
{$endif SUPPORT_MMX}
|
|
pushedreg : tpushed;
|
|
hloc : tlocation;
|
|
|
|
procedure firstjmp64bitcmp;
|
|
|
|
var
|
|
oldtreetype : ttreetyp;
|
|
|
|
begin
|
|
{ the jump the sequence is a little bit hairy }
|
|
case p^.treetype of
|
|
ltn,gtn:
|
|
begin
|
|
emitjmp(flag_2_cond[getresflags(p,unsigned)],truelabel);
|
|
{ cheat a little bit for the negative test }
|
|
p^.swaped:=not(p^.swaped);
|
|
emitjmp(flag_2_cond[getresflags(p,unsigned)],falselabel);
|
|
p^.swaped:=not(p^.swaped);
|
|
end;
|
|
lten,gten:
|
|
begin
|
|
oldtreetype:=p^.treetype;
|
|
if p^.treetype=lten then
|
|
p^.treetype:=ltn
|
|
else
|
|
p^.treetype:=gtn;
|
|
emitjmp(flag_2_cond[getresflags(p,unsigned)],truelabel);
|
|
{ cheat for the negative test }
|
|
if p^.treetype=ltn then
|
|
p^.treetype:=gtn
|
|
else
|
|
p^.treetype:=ltn;
|
|
emitjmp(flag_2_cond[getresflags(p,unsigned)],falselabel);
|
|
p^.treetype:=oldtreetype;
|
|
end;
|
|
equaln:
|
|
emitjmp(C_NE,falselabel);
|
|
unequaln:
|
|
emitjmp(C_NE,truelabel);
|
|
end;
|
|
end;
|
|
|
|
procedure secondjmp64bitcmp;
|
|
|
|
begin
|
|
{ the jump the sequence is a little bit hairy }
|
|
case p^.treetype of
|
|
ltn,gtn,lten,gten:
|
|
begin
|
|
{ the comparisaion of the low dword have to be }
|
|
{ always unsigned! }
|
|
emitjmp(flag_2_cond[getresflags(p,true)],truelabel);
|
|
emitjmp(C_None,falselabel);
|
|
end;
|
|
equaln:
|
|
begin
|
|
emitjmp(C_NE,falselabel);
|
|
emitjmp(C_None,truelabel);
|
|
end;
|
|
unequaln:
|
|
begin
|
|
emitjmp(C_NE,truelabel);
|
|
emitjmp(C_None,falselabel);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
begin
|
|
{ to make it more readable, string and set (not smallset!) have their
|
|
own procedures }
|
|
case p^.left^.resulttype^.deftype of
|
|
stringdef : begin
|
|
addstring(p);
|
|
exit;
|
|
end;
|
|
setdef : begin
|
|
{ normalsets are handled separate }
|
|
if not(psetdef(p^.left^.resulttype)^.settype=smallset) then
|
|
begin
|
|
addset(p);
|
|
exit;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{ defaults }
|
|
unsigned:=false;
|
|
is_in_dest:=false;
|
|
extra_not:=false;
|
|
noswap:=false;
|
|
opsize:=S_L;
|
|
|
|
{ are we a (small)set, must be set here because the side can be
|
|
swapped ! (PFV) }
|
|
is_set:=(p^.left^.resulttype^.deftype=setdef);
|
|
|
|
{ calculate the operator which is more difficult }
|
|
firstcomplex(p);
|
|
|
|
{ handling boolean expressions extra: }
|
|
if is_boolean(p^.left^.resulttype) and
|
|
is_boolean(p^.right^.resulttype) then
|
|
begin
|
|
if (porddef(p^.left^.resulttype)^.typ=bool8bit) or
|
|
(porddef(p^.right^.resulttype)^.typ=bool8bit) then
|
|
opsize:=S_B
|
|
else
|
|
if (porddef(p^.left^.resulttype)^.typ=bool16bit) or
|
|
(porddef(p^.right^.resulttype)^.typ=bool16bit) then
|
|
opsize:=S_W
|
|
else
|
|
opsize:=S_L;
|
|
case p^.treetype of
|
|
andn,
|
|
orn : begin
|
|
clear_location(p^.location);
|
|
p^.location.loc:=LOC_JUMP;
|
|
cmpop:=false;
|
|
case p^.treetype of
|
|
andn : begin
|
|
otl:=truelabel;
|
|
getlabel(truelabel);
|
|
secondpass(p^.left);
|
|
maketojumpbool(p^.left);
|
|
emitlab(truelabel);
|
|
truelabel:=otl;
|
|
end;
|
|
orn : begin
|
|
ofl:=falselabel;
|
|
getlabel(falselabel);
|
|
secondpass(p^.left);
|
|
maketojumpbool(p^.left);
|
|
emitlab(falselabel);
|
|
falselabel:=ofl;
|
|
end;
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
secondpass(p^.right);
|
|
maketojumpbool(p^.right);
|
|
end;
|
|
unequaln,ltn,lten,gtn,gten,
|
|
equaln,xorn : begin
|
|
if p^.left^.treetype=ordconstn then
|
|
swaptree(p);
|
|
if p^.left^.location.loc=LOC_JUMP then
|
|
begin
|
|
otl:=truelabel;
|
|
getlabel(truelabel);
|
|
ofl:=falselabel;
|
|
getlabel(falselabel);
|
|
end;
|
|
|
|
secondpass(p^.left);
|
|
{ if in flags then copy first to register, because the
|
|
flags can be destroyed }
|
|
case p^.left^.location.loc of
|
|
LOC_FLAGS:
|
|
locflags2reg(p^.left^.location,opsize);
|
|
LOC_JUMP:
|
|
begin
|
|
case opsize of
|
|
S_L : hregister:=getregister32;
|
|
S_W : hregister:=reg32toreg16(getregister32);
|
|
S_B : hregister:=reg32toreg8(getregister32);
|
|
end;
|
|
p^.left^.location.loc:=LOC_REGISTER;
|
|
p^.left^.location.register:=hregister;
|
|
emitlab(truelabel);
|
|
truelabel:=otl;
|
|
emit_const_reg(A_MOV,opsize,1,hregister);
|
|
getlabel(hl);
|
|
emitjmp(C_None,hl);
|
|
emitlab(falselabel);
|
|
falselabel:=ofl;
|
|
emit_reg_reg(A_XOR,S_L,makereg32(hregister),
|
|
makereg32(hregister));
|
|
emitlab(hl);
|
|
end;
|
|
end;
|
|
set_location(p^.location,p^.left^.location);
|
|
pushed:=maybe_push(p^.right^.registers32,p,false);
|
|
if p^.right^.location.loc=LOC_JUMP then
|
|
begin
|
|
otl:=truelabel;
|
|
getlabel(truelabel);
|
|
ofl:=falselabel;
|
|
getlabel(falselabel);
|
|
end;
|
|
secondpass(p^.right);
|
|
if pushed then
|
|
begin
|
|
restore(p,false);
|
|
set_location(p^.left^.location,p^.location);
|
|
end;
|
|
case p^.right^.location.loc of
|
|
LOC_FLAGS:
|
|
locflags2reg(p^.right^.location,opsize);
|
|
LOC_JUMP:
|
|
begin
|
|
case opsize of
|
|
S_L : hregister:=getregister32;
|
|
S_W : hregister:=reg32toreg16(getregister32);
|
|
S_B : hregister:=reg32toreg8(getregister32);
|
|
end;
|
|
p^.right^.location.loc:=LOC_REGISTER;
|
|
p^.right^.location.register:=hregister;
|
|
emitlab(truelabel);
|
|
truelabel:=otl;
|
|
emit_const_reg(A_MOV,opsize,1,hregister);
|
|
getlabel(hl);
|
|
emitjmp(C_None,hl);
|
|
emitlab(falselabel);
|
|
falselabel:=ofl;
|
|
emit_reg_reg(A_XOR,S_L,makereg32(hregister),
|
|
makereg32(hregister));
|
|
emitlab(hl);
|
|
end;
|
|
end;
|
|
goto do_normal;
|
|
end
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end
|
|
end
|
|
else
|
|
begin
|
|
{ in case of constant put it to the left }
|
|
if (p^.left^.treetype=ordconstn) then
|
|
swaptree(p);
|
|
secondpass(p^.left);
|
|
{ this will be complicated as
|
|
a lot of code below assumes that
|
|
p^.location and p^.left^.location are the same }
|
|
|
|
{$ifdef test_dest_loc}
|
|
if dest_loc_known and (dest_loc_tree=p) and
|
|
((dest_loc.loc=LOC_REGISTER) or (dest_loc.loc=LOC_CREGISTER)) then
|
|
begin
|
|
set_location(p^.location,dest_loc);
|
|
in_dest_loc:=true;
|
|
is_in_dest:=true;
|
|
end
|
|
else
|
|
{$endif test_dest_loc}
|
|
set_location(p^.location,p^.left^.location);
|
|
|
|
{ are too few registers free? }
|
|
pushed:=maybe_push(p^.right^.registers32,p,is_64bitint(p^.left^.resulttype));
|
|
secondpass(p^.right);
|
|
if pushed then
|
|
begin
|
|
restore(p,is_64bitint(p^.left^.resulttype));
|
|
set_location(p^.left^.location,p^.location);
|
|
end;
|
|
|
|
if (p^.left^.resulttype^.deftype=pointerdef) or
|
|
|
|
(p^.right^.resulttype^.deftype=pointerdef) or
|
|
|
|
((p^.right^.resulttype^.deftype=objectdef) and
|
|
pobjectdef(p^.right^.resulttype)^.is_class and
|
|
(p^.left^.resulttype^.deftype=objectdef) and
|
|
pobjectdef(p^.left^.resulttype)^.is_class
|
|
) or
|
|
|
|
(p^.left^.resulttype^.deftype=classrefdef) or
|
|
|
|
(p^.left^.resulttype^.deftype=procvardef) or
|
|
|
|
((p^.left^.resulttype^.deftype=enumdef) and
|
|
(p^.left^.resulttype^.size=4)) or
|
|
|
|
((p^.left^.resulttype^.deftype=orddef) and
|
|
(porddef(p^.left^.resulttype)^.typ=s32bit)) or
|
|
((p^.right^.resulttype^.deftype=orddef) and
|
|
(porddef(p^.right^.resulttype)^.typ=s32bit)) or
|
|
|
|
((p^.left^.resulttype^.deftype=orddef) and
|
|
(porddef(p^.left^.resulttype)^.typ=u32bit)) or
|
|
((p^.right^.resulttype^.deftype=orddef) and
|
|
(porddef(p^.right^.resulttype)^.typ=u32bit)) or
|
|
|
|
{ as well as small sets }
|
|
is_set then
|
|
begin
|
|
do_normal:
|
|
mboverflow:=false;
|
|
cmpop:=false;
|
|
{$ifndef cardinalmulfix}
|
|
unsigned :=
|
|
(p^.left^.resulttype^.deftype=pointerdef) or
|
|
(p^.right^.resulttype^.deftype=pointerdef) or
|
|
((p^.left^.resulttype^.deftype=orddef) and
|
|
(porddef(p^.left^.resulttype)^.typ=u32bit)) or
|
|
((p^.right^.resulttype^.deftype=orddef) and
|
|
(porddef(p^.right^.resulttype)^.typ=u32bit));
|
|
{$else cardinalmulfix}
|
|
unsigned := not(is_signed(p^.left^.resulttype)) or
|
|
not(is_signed(p^.right^.resulttype));
|
|
{$endif cardinalmulfix}
|
|
case p^.treetype of
|
|
addn : begin
|
|
if is_set then
|
|
begin
|
|
{ adding elements is not commutative }
|
|
if p^.swaped and (p^.left^.treetype=setelementn) then
|
|
swaptree(p);
|
|
{ are we adding set elements ? }
|
|
if p^.right^.treetype=setelementn then
|
|
begin
|
|
{ no range support for smallsets! }
|
|
if assigned(p^.right^.right) then
|
|
internalerror(43244);
|
|
{ bts requires both elements to be registers }
|
|
if p^.left^.location.loc in [LOC_MEM,LOC_REFERENCE] then
|
|
begin
|
|
ungetiftemp(p^.left^.location.reference);
|
|
del_location(p^.left^.location);
|
|
{!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!}
|
|
hregister:=getregister32;
|
|
emit_ref_reg(A_MOV,opsize,
|
|
newreference(p^.left^.location.reference),hregister);
|
|
clear_location(p^.left^.location);
|
|
p^.left^.location.loc:=LOC_REGISTER;
|
|
p^.left^.location.register:=hregister;
|
|
set_location(p^.location,p^.left^.location);
|
|
end;
|
|
if p^.right^.location.loc in [LOC_MEM,LOC_REFERENCE] then
|
|
begin
|
|
ungetiftemp(p^.right^.location.reference);
|
|
del_location(p^.right^.location);
|
|
hregister:=getregister32;
|
|
emit_ref_reg(A_MOV,opsize,
|
|
newreference(p^.right^.location.reference),hregister);
|
|
clear_location(p^.right^.location);
|
|
p^.right^.location.loc:=LOC_REGISTER;
|
|
p^.right^.location.register:=hregister;
|
|
end;
|
|
op:=A_BTS;
|
|
noswap:=true;
|
|
end
|
|
else
|
|
op:=A_OR;
|
|
mboverflow:=false;
|
|
unsigned:=false;
|
|
end
|
|
else
|
|
begin
|
|
op:=A_ADD;
|
|
mboverflow:=true;
|
|
end;
|
|
end;
|
|
symdifn : begin
|
|
{ the symetric diff is only for sets }
|
|
if is_set then
|
|
begin
|
|
op:=A_XOR;
|
|
mboverflow:=false;
|
|
unsigned:=false;
|
|
end
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
muln : begin
|
|
if is_set then
|
|
begin
|
|
op:=A_AND;
|
|
mboverflow:=false;
|
|
unsigned:=false;
|
|
end
|
|
else
|
|
begin
|
|
if unsigned then
|
|
op:=A_MUL
|
|
else
|
|
op:=A_IMUL;
|
|
mboverflow:=true;
|
|
end;
|
|
end;
|
|
subn : begin
|
|
if is_set then
|
|
begin
|
|
op:=A_AND;
|
|
mboverflow:=false;
|
|
unsigned:=false;
|
|
{$IfNDef NoSetConstNot}
|
|
If (p^.right^.treetype = setconstn) then
|
|
p^.right^.location.reference.offset := not(p^.right^.location.reference.offset)
|
|
Else
|
|
{$EndIf NoNosetConstNot}
|
|
extra_not:=true;
|
|
end
|
|
else
|
|
begin
|
|
op:=A_SUB;
|
|
mboverflow:=true;
|
|
end;
|
|
end;
|
|
ltn,lten,
|
|
gtn,gten,
|
|
equaln,unequaln : begin
|
|
{$IfNDef NoSetInclusion}
|
|
If is_set Then
|
|
Case p^.treetype of
|
|
lten,gten:
|
|
Begin
|
|
If p^.treetype = lten then
|
|
swaptree(p);
|
|
if p^.left^.location.loc in [LOC_MEM,LOC_REFERENCE] then
|
|
begin
|
|
ungetiftemp(p^.left^.location.reference);
|
|
del_reference(p^.left^.location.reference);
|
|
hregister:=getregister32;
|
|
emit_ref_reg(A_MOV,opsize,
|
|
newreference(p^.left^.location.reference),hregister);
|
|
clear_location(p^.left^.location);
|
|
p^.left^.location.loc:=LOC_REGISTER;
|
|
p^.left^.location.register:=hregister;
|
|
set_location(p^.location,p^.left^.location);
|
|
end
|
|
else
|
|
if p^.left^.location.loc = LOC_CREGISTER Then
|
|
{save the register var in a temp register, because
|
|
its value is going to be modified}
|
|
begin
|
|
hregister := getregister32;
|
|
emit_reg_reg(A_MOV,opsize,
|
|
p^.left^.location.register,hregister);
|
|
clear_location(p^.left^.location);
|
|
p^.left^.location.loc:=LOC_REGISTER;
|
|
p^.left^.location.register:=hregister;
|
|
set_location(p^.location,p^.left^.location);
|
|
end;
|
|
{here, p^.left^.location should be LOC_REGISTER}
|
|
If p^.right^.location.loc in [LOC_MEM,LOC_REFERENCE] Then
|
|
emit_ref_reg(A_AND,opsize,
|
|
newreference(p^.right^.location.reference),p^.left^.location.register)
|
|
Else
|
|
emit_reg_reg(A_AND,opsize,
|
|
p^.right^.location.register,p^.left^.location.register);
|
|
{warning: ugly hack ahead: we need a "jne" after the cmp, so
|
|
change the treetype from lten/gten to equaln}
|
|
p^.treetype := equaln
|
|
End;
|
|
{no < or > support for sets}
|
|
ltn,gtn: CGMessage(type_e_mismatch);
|
|
End;
|
|
{$EndIf NoSetInclusion}
|
|
op:=A_CMP;
|
|
cmpop:=true;
|
|
end;
|
|
xorn : op:=A_XOR;
|
|
orn : op:=A_OR;
|
|
andn : op:=A_AND;
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
|
|
{ filter MUL, which requires special handling }
|
|
if op=A_MUL then
|
|
begin
|
|
popeax:=false;
|
|
popedx:=false;
|
|
{ here you need to free the symbol first }
|
|
{ This is VERY bad!!!! Now the optimizer assumes the current values of }
|
|
{ those registers are NOT needed anymore, which causes bugs! The }
|
|
{ optimizer now contains a workaround which tries to fix all wrong }
|
|
{ deallocations, but this kind of things should NOT be done (JM) }
|
|
clear_location(p^.location);
|
|
release_loc(p^.right^.location);
|
|
release_loc(p^.left^.location);
|
|
p^.location.register:=getregister32;
|
|
p^.location.loc:=LOC_REGISTER;
|
|
{$IfNDef NoShlMul}
|
|
if p^.right^.treetype=ordconstn then
|
|
swaptree(p);
|
|
If (p^.left^.treetype = ordconstn) and
|
|
ispowerof2(p^.left^.value, power) and
|
|
not(cs_check_overflow in aktlocalswitches) then
|
|
Begin
|
|
emitloadord2reg(p^.right^.location,u32bitdef,p^.location.register,true);
|
|
emit_const_reg(A_SHL,S_L,power,p^.location.register)
|
|
End
|
|
Else
|
|
Begin
|
|
{$EndIf NoShlMul}
|
|
if not(R_EAX in unused) and (p^.location.register<>R_EAX) then
|
|
begin
|
|
emit_reg(A_PUSH,S_L,R_EAX);
|
|
popeax:=true;
|
|
end;
|
|
if not(R_EDX in unused) and (p^.location.register<>R_EDX) then
|
|
begin
|
|
emit_reg(A_PUSH,S_L,R_EDX);
|
|
popedx:=true;
|
|
end;
|
|
{ p^.left^.location can be R_EAX !!! }
|
|
{$ifndef noAllocEdi}
|
|
getexplicitregister32(R_EDI);
|
|
{$endif noAllocEdi}
|
|
emitloadord2reg(p^.left^.location,u32bitdef,R_EDI,true);
|
|
emitloadord2reg(p^.right^.location,u32bitdef,R_EAX,true);
|
|
{$ifndef noAllocEdi}
|
|
if R_EDX in unused then
|
|
exprasmlist^.concat(new(pairegalloc,alloc(R_EDX)));
|
|
{$endif noAllocEdi}
|
|
emit_reg(A_MUL,S_L,R_EDI);
|
|
{$ifndef noAllocEdi}
|
|
ungetregister32(R_EDI);
|
|
if R_EDX in unused then
|
|
exprasmlist^.concat(new(pairegalloc,dealloc(R_EDX)));
|
|
{$endif noAllocEdi}
|
|
emit_reg_reg(A_MOV,S_L,R_EAX,p^.location.register);
|
|
if popedx then
|
|
emit_reg(A_POP,S_L,R_EDX);
|
|
if popeax then
|
|
emit_reg(A_POP,S_L,R_EAX);
|
|
{$IfNDef NoShlMul}
|
|
End;
|
|
{$endif NoShlMul}
|
|
SetResultLocation(false,true,p);
|
|
exit;
|
|
end;
|
|
|
|
{ Convert flags to register first }
|
|
if (p^.left^.location.loc=LOC_FLAGS) then
|
|
locflags2reg(p^.left^.location,opsize);
|
|
if (p^.right^.location.loc=LOC_FLAGS) then
|
|
locflags2reg(p^.right^.location,opsize);
|
|
|
|
{ left and right no register? }
|
|
{ then one must be demanded }
|
|
if (p^.left^.location.loc<>LOC_REGISTER) and
|
|
(p^.right^.location.loc<>LOC_REGISTER) then
|
|
begin
|
|
{ register variable ? }
|
|
if (p^.left^.location.loc=LOC_CREGISTER) then
|
|
begin
|
|
{ it is OK if this is the destination }
|
|
if is_in_dest then
|
|
begin
|
|
hregister:=p^.location.register;
|
|
emit_reg_reg(A_MOV,opsize,p^.left^.location.register,
|
|
hregister);
|
|
end
|
|
else
|
|
if cmpop then
|
|
begin
|
|
{ do not disturb the register }
|
|
hregister:=p^.location.register;
|
|
end
|
|
else
|
|
begin
|
|
case opsize of
|
|
S_L : hregister:=getregister32;
|
|
S_B : hregister:=reg32toreg8(getregister32);
|
|
end;
|
|
emit_reg_reg(A_MOV,opsize,p^.left^.location.register,
|
|
hregister);
|
|
end
|
|
end
|
|
else
|
|
begin
|
|
ungetiftemp(p^.left^.location.reference);
|
|
del_reference(p^.left^.location.reference);
|
|
if is_in_dest then
|
|
begin
|
|
hregister:=p^.location.register;
|
|
emit_ref_reg(A_MOV,opsize,
|
|
newreference(p^.left^.location.reference),hregister);
|
|
end
|
|
else
|
|
begin
|
|
{ first give free, then demand new register }
|
|
case opsize of
|
|
S_L : hregister:=getregister32;
|
|
S_W : hregister:=reg32toreg16(getregister32);
|
|
S_B : hregister:=reg32toreg8(getregister32);
|
|
end;
|
|
emit_ref_reg(A_MOV,opsize,
|
|
newreference(p^.left^.location.reference),hregister);
|
|
end;
|
|
end;
|
|
clear_location(p^.location);
|
|
p^.location.loc:=LOC_REGISTER;
|
|
p^.location.register:=hregister;
|
|
end
|
|
else
|
|
{ if on the right the register then swap }
|
|
if not(noswap) and (p^.right^.location.loc=LOC_REGISTER) then
|
|
begin
|
|
swap_location(p^.location,p^.right^.location);
|
|
|
|
{ newly swapped also set swapped flag }
|
|
p^.swaped:=not(p^.swaped);
|
|
end;
|
|
{ at this point, p^.location.loc should be LOC_REGISTER }
|
|
{ and p^.location.register should be a valid register }
|
|
{ containing the left result }
|
|
|
|
if p^.right^.location.loc<>LOC_REGISTER then
|
|
begin
|
|
if (p^.treetype=subn) and p^.swaped then
|
|
begin
|
|
if p^.right^.location.loc=LOC_CREGISTER then
|
|
begin
|
|
if extra_not then
|
|
emit_reg(A_NOT,opsize,p^.location.register);
|
|
{$ifndef noAllocEdi}
|
|
getexplicitregister32(R_EDI);
|
|
{$endif noAllocEdi}
|
|
emit_reg_reg(A_MOV,opsize,p^.right^.location.register,R_EDI);
|
|
emit_reg_reg(op,opsize,p^.location.register,R_EDI);
|
|
emit_reg_reg(A_MOV,opsize,R_EDI,p^.location.register);
|
|
{$ifndef noAllocEdi}
|
|
ungetregister32(R_EDI);
|
|
{$endif noAllocEdi}
|
|
end
|
|
else
|
|
begin
|
|
if extra_not then
|
|
emit_reg(A_NOT,opsize,p^.location.register);
|
|
|
|
{$ifndef noAllocEdi}
|
|
getexplicitregister32(R_EDI);
|
|
{$endif noAllocEdi}
|
|
emit_ref_reg(A_MOV,opsize,
|
|
newreference(p^.right^.location.reference),R_EDI);
|
|
emit_reg_reg(op,opsize,p^.location.register,R_EDI);
|
|
emit_reg_reg(A_MOV,opsize,R_EDI,p^.location.register);
|
|
{$ifndef noAllocEdi}
|
|
ungetregister32(R_EDI);
|
|
{$endif noAllocEdi}
|
|
ungetiftemp(p^.right^.location.reference);
|
|
del_reference(p^.right^.location.reference);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
if (p^.right^.treetype=ordconstn) and
|
|
(op=A_CMP) and
|
|
(p^.right^.value=0) then
|
|
begin
|
|
emit_reg_reg(A_TEST,opsize,p^.location.register,
|
|
p^.location.register);
|
|
end
|
|
else if (p^.right^.treetype=ordconstn) and
|
|
(op=A_ADD) and
|
|
(p^.right^.value=1) and
|
|
not(cs_check_overflow in aktlocalswitches) then
|
|
begin
|
|
emit_reg(A_INC,opsize,
|
|
p^.location.register);
|
|
end
|
|
else if (p^.right^.treetype=ordconstn) and
|
|
(op=A_SUB) and
|
|
(p^.right^.value=1) and
|
|
not(cs_check_overflow in aktlocalswitches) then
|
|
begin
|
|
emit_reg(A_DEC,opsize,
|
|
p^.location.register);
|
|
end
|
|
else if (p^.right^.treetype=ordconstn) and
|
|
(op=A_IMUL) and
|
|
(ispowerof2(p^.right^.value,power)) and
|
|
not(cs_check_overflow in aktlocalswitches) then
|
|
begin
|
|
emit_const_reg(A_SHL,opsize,power,
|
|
p^.location.register);
|
|
end
|
|
else
|
|
begin
|
|
if (p^.right^.location.loc=LOC_CREGISTER) then
|
|
begin
|
|
if extra_not then
|
|
begin
|
|
{$ifndef noAllocEdi}
|
|
getexplicitregister32(R_EDI);
|
|
{$endif noAllocEdi}
|
|
emit_reg_reg(A_MOV,S_L,p^.right^.location.register,R_EDI);
|
|
emit_reg(A_NOT,S_L,R_EDI);
|
|
emit_reg_reg(A_AND,S_L,R_EDI,
|
|
p^.location.register);
|
|
{$ifndef noAllocEdi}
|
|
ungetregister32(R_EDI);
|
|
{$endif noAllocEdi}
|
|
end
|
|
else
|
|
begin
|
|
emit_reg_reg(op,opsize,p^.right^.location.register,
|
|
p^.location.register);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
if extra_not then
|
|
begin
|
|
{$ifndef noAllocEdi}
|
|
getexplicitregister32(R_EDI);
|
|
{$endif noAllocEdi}
|
|
emit_ref_reg(A_MOV,S_L,newreference(
|
|
p^.right^.location.reference),R_EDI);
|
|
emit_reg(A_NOT,S_L,R_EDI);
|
|
emit_reg_reg(A_AND,S_L,R_EDI,
|
|
p^.location.register);
|
|
{$ifndef noAllocEdi}
|
|
ungetregister32(R_EDI);
|
|
{$endif noAllocEdi}
|
|
end
|
|
else
|
|
begin
|
|
emit_ref_reg(op,opsize,newreference(
|
|
p^.right^.location.reference),p^.location.register);
|
|
end;
|
|
ungetiftemp(p^.right^.location.reference);
|
|
del_reference(p^.right^.location.reference);
|
|
end;
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
{ when swapped another result register }
|
|
if (p^.treetype=subn) and p^.swaped then
|
|
begin
|
|
if extra_not then
|
|
emit_reg(A_NOT,S_L,p^.location.register);
|
|
|
|
emit_reg_reg(op,opsize,
|
|
p^.location.register,p^.right^.location.register);
|
|
swap_location(p^.location,p^.right^.location);
|
|
{ newly swapped also set swapped flag }
|
|
{ just to maintain ordering }
|
|
p^.swaped:=not(p^.swaped);
|
|
end
|
|
else
|
|
begin
|
|
if extra_not then
|
|
emit_reg(A_NOT,S_L,p^.right^.location.register);
|
|
emit_reg_reg(op,opsize,
|
|
p^.right^.location.register,
|
|
p^.location.register);
|
|
end;
|
|
case opsize of
|
|
S_L : ungetregister32(p^.right^.location.register);
|
|
S_B : ungetregister32(reg8toreg32(p^.right^.location.register));
|
|
end;
|
|
end;
|
|
|
|
if cmpop then
|
|
case opsize of
|
|
S_L : ungetregister32(p^.location.register);
|
|
S_B : ungetregister32(reg8toreg32(p^.location.register));
|
|
end;
|
|
|
|
{ only in case of overflow operations }
|
|
{ produce overflow code }
|
|
{ we must put it here directly, because sign of operation }
|
|
{ is in unsigned VAR!! }
|
|
if mboverflow then
|
|
begin
|
|
if cs_check_overflow in aktlocalswitches then
|
|
begin
|
|
getlabel(hl4);
|
|
if unsigned then
|
|
emitjmp(C_NB,hl4)
|
|
else
|
|
emitjmp(C_NO,hl4);
|
|
emitcall('FPC_OVERFLOW');
|
|
emitlab(hl4);
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
|
|
{ Char type }
|
|
if ((p^.left^.resulttype^.deftype=orddef) and
|
|
(porddef(p^.left^.resulttype)^.typ=uchar)) or
|
|
{ enumeration type 16 bit }
|
|
((p^.left^.resulttype^.deftype=enumdef) and
|
|
(p^.left^.resulttype^.size=1)) then
|
|
begin
|
|
case p^.treetype of
|
|
ltn,lten,gtn,gten,
|
|
equaln,unequaln :
|
|
cmpop:=true;
|
|
else CGMessage(type_e_mismatch);
|
|
end;
|
|
unsigned:=true;
|
|
{ left and right no register? }
|
|
{ the one must be demanded }
|
|
if (p^.location.loc<>LOC_REGISTER) and
|
|
(p^.right^.location.loc<>LOC_REGISTER) then
|
|
begin
|
|
if p^.location.loc=LOC_CREGISTER then
|
|
begin
|
|
if cmpop then
|
|
{ do not disturb register }
|
|
hregister:=p^.location.register
|
|
else
|
|
begin
|
|
hregister:=reg32toreg8(getregister32);
|
|
emit_reg_reg(A_MOV,S_B,p^.location.register,
|
|
hregister);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
del_reference(p^.location.reference);
|
|
|
|
{ first give free then demand new register }
|
|
hregister:=reg32toreg8(getregister32);
|
|
emit_ref_reg(A_MOV,S_B,newreference(p^.location.reference),
|
|
hregister);
|
|
end;
|
|
clear_location(p^.location);
|
|
p^.location.loc:=LOC_REGISTER;
|
|
p^.location.register:=hregister;
|
|
end;
|
|
|
|
{ now p always a register }
|
|
|
|
if (p^.right^.location.loc=LOC_REGISTER) and
|
|
(p^.location.loc<>LOC_REGISTER) then
|
|
begin
|
|
swap_location(p^.location,p^.right^.location);
|
|
{ newly swapped also set swapped flag }
|
|
p^.swaped:=not(p^.swaped);
|
|
end;
|
|
|
|
if p^.right^.location.loc<>LOC_REGISTER then
|
|
begin
|
|
if p^.right^.location.loc=LOC_CREGISTER then
|
|
begin
|
|
emit_reg_reg(A_CMP,S_B,
|
|
p^.right^.location.register,p^.location.register);
|
|
end
|
|
else
|
|
begin
|
|
emit_ref_reg(A_CMP,S_B,newreference(
|
|
p^.right^.location.reference),p^.location.register);
|
|
del_reference(p^.right^.location.reference);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
emit_reg_reg(A_CMP,S_B,p^.right^.location.register,
|
|
p^.location.register);
|
|
ungetregister32(reg8toreg32(p^.right^.location.register));
|
|
end;
|
|
ungetregister32(reg8toreg32(p^.location.register));
|
|
end
|
|
else
|
|
{ 16 bit enumeration type }
|
|
if ((p^.left^.resulttype^.deftype=enumdef) and
|
|
(p^.left^.resulttype^.size=2)) then
|
|
begin
|
|
case p^.treetype of
|
|
ltn,lten,gtn,gten,
|
|
equaln,unequaln :
|
|
cmpop:=true;
|
|
else CGMessage(type_e_mismatch);
|
|
end;
|
|
unsigned:=true;
|
|
{ left and right no register? }
|
|
{ the one must be demanded }
|
|
if (p^.location.loc<>LOC_REGISTER) and
|
|
(p^.right^.location.loc<>LOC_REGISTER) then
|
|
begin
|
|
if p^.location.loc=LOC_CREGISTER then
|
|
begin
|
|
if cmpop then
|
|
{ do not disturb register }
|
|
hregister:=p^.location.register
|
|
else
|
|
begin
|
|
hregister:=reg32toreg16(getregister32);
|
|
emit_reg_reg(A_MOV,S_W,p^.location.register,
|
|
hregister);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
del_reference(p^.location.reference);
|
|
|
|
{ first give free then demand new register }
|
|
hregister:=reg32toreg16(getregister32);
|
|
emit_ref_reg(A_MOV,S_W,newreference(p^.location.reference),
|
|
hregister);
|
|
end;
|
|
clear_location(p^.location);
|
|
p^.location.loc:=LOC_REGISTER;
|
|
p^.location.register:=hregister;
|
|
end;
|
|
|
|
{ now p always a register }
|
|
|
|
if (p^.right^.location.loc=LOC_REGISTER) and
|
|
(p^.location.loc<>LOC_REGISTER) then
|
|
begin
|
|
swap_location(p^.location,p^.right^.location);
|
|
{ newly swapped also set swapped flag }
|
|
p^.swaped:=not(p^.swaped);
|
|
end;
|
|
|
|
if p^.right^.location.loc<>LOC_REGISTER then
|
|
begin
|
|
if p^.right^.location.loc=LOC_CREGISTER then
|
|
begin
|
|
emit_reg_reg(A_CMP,S_W,
|
|
p^.right^.location.register,p^.location.register);
|
|
end
|
|
else
|
|
begin
|
|
emit_ref_reg(A_CMP,S_W,newreference(
|
|
p^.right^.location.reference),p^.location.register);
|
|
del_reference(p^.right^.location.reference);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
emit_reg_reg(A_CMP,S_W,p^.right^.location.register,
|
|
p^.location.register);
|
|
ungetregister32(reg16toreg32(p^.right^.location.register));
|
|
end;
|
|
ungetregister32(reg16toreg32(p^.location.register));
|
|
end
|
|
else
|
|
{ 64 bit types }
|
|
if is_64bitint(p^.left^.resulttype) then
|
|
begin
|
|
mboverflow:=false;
|
|
cmpop:=false;
|
|
unsigned:=((p^.left^.resulttype^.deftype=orddef) and
|
|
(porddef(p^.left^.resulttype)^.typ=u64bit)) or
|
|
((p^.right^.resulttype^.deftype=orddef) and
|
|
(porddef(p^.right^.resulttype)^.typ=u64bit));
|
|
case p^.treetype of
|
|
addn : begin
|
|
begin
|
|
op:=A_ADD;
|
|
op2:=A_ADC;
|
|
mboverflow:=true;
|
|
end;
|
|
end;
|
|
subn : begin
|
|
op:=A_SUB;
|
|
op2:=A_SBB;
|
|
mboverflow:=true;
|
|
end;
|
|
ltn,lten,
|
|
gtn,gten,
|
|
equaln,unequaln:
|
|
begin
|
|
op:=A_CMP;
|
|
op2:=A_CMP;
|
|
cmpop:=true;
|
|
end;
|
|
|
|
xorn:
|
|
begin
|
|
op:=A_XOR;
|
|
op2:=A_XOR;
|
|
end;
|
|
|
|
orn:
|
|
begin
|
|
op:=A_OR;
|
|
op2:=A_OR;
|
|
end;
|
|
|
|
andn:
|
|
begin
|
|
op:=A_AND;
|
|
op2:=A_AND;
|
|
end;
|
|
muln:
|
|
;
|
|
else
|
|
CGMessage(type_e_mismatch);
|
|
end;
|
|
|
|
if p^.treetype=muln then
|
|
begin
|
|
{ save p^.lcoation, because we change it now }
|
|
set_location(hloc,p^.location);
|
|
release_qword_loc(p^.location);
|
|
release_qword_loc(p^.right^.location);
|
|
p^.location.registerlow:=getexplicitregister32(R_EAX);
|
|
p^.location.registerhigh:=getexplicitregister32(R_EDX);
|
|
pushusedregisters(pushedreg,$ff
|
|
and not($80 shr byte(p^.location.registerlow))
|
|
and not($80 shr byte(p^.location.registerhigh)));
|
|
if cs_check_overflow in aktlocalswitches then
|
|
push_int(1)
|
|
else
|
|
push_int(0);
|
|
{ the left operand is in hloc, because the
|
|
location of left is p^.location but p^.location
|
|
is already destroyed
|
|
}
|
|
emit_pushq_loc(hloc);
|
|
clear_location(hloc);
|
|
emit_pushq_loc(p^.right^.location);
|
|
if porddef(p^.resulttype)^.typ=u64bit then
|
|
emitcall('FPC_MUL_QWORD')
|
|
else
|
|
emitcall('FPC_MUL_INT64');
|
|
emit_reg_reg(A_MOV,S_L,R_EAX,p^.location.registerlow);
|
|
emit_reg_reg(A_MOV,S_L,R_EDX,p^.location.registerhigh);
|
|
popusedregisters(pushedreg);
|
|
p^.location.loc:=LOC_REGISTER;
|
|
end
|
|
else
|
|
begin
|
|
{ left and right no register? }
|
|
{ then one must be demanded }
|
|
if (p^.left^.location.loc<>LOC_REGISTER) and
|
|
(p^.right^.location.loc<>LOC_REGISTER) then
|
|
begin
|
|
{ register variable ? }
|
|
if (p^.left^.location.loc=LOC_CREGISTER) then
|
|
begin
|
|
{ it is OK if this is the destination }
|
|
if is_in_dest then
|
|
begin
|
|
hregister:=p^.location.registerlow;
|
|
hregister2:=p^.location.registerhigh;
|
|
emit_reg_reg(A_MOV,S_L,p^.left^.location.registerlow,
|
|
hregister);
|
|
emit_reg_reg(A_MOV,S_L,p^.left^.location.registerlow,
|
|
hregister2);
|
|
end
|
|
else
|
|
if cmpop then
|
|
begin
|
|
{ do not disturb the register }
|
|
hregister:=p^.location.registerlow;
|
|
hregister2:=p^.location.registerhigh;
|
|
end
|
|
else
|
|
begin
|
|
hregister:=getregister32;
|
|
hregister2:=getregister32;
|
|
emit_reg_reg(A_MOV,S_L,p^.left^.location.registerlow,
|
|
hregister);
|
|
emit_reg_reg(A_MOV,S_L,p^.left^.location.registerhigh,
|
|
hregister2);
|
|
end
|
|
end
|
|
else
|
|
begin
|
|
ungetiftemp(p^.left^.location.reference);
|
|
del_reference(p^.left^.location.reference);
|
|
if is_in_dest then
|
|
begin
|
|
hregister:=p^.location.registerlow;
|
|
hregister2:=p^.location.registerhigh;
|
|
emit_ref_reg(A_MOV,S_L,
|
|
newreference(p^.left^.location.reference),hregister);
|
|
hr:=newreference(p^.left^.location.reference);
|
|
inc(hr^.offset,4);
|
|
emit_ref_reg(A_MOV,S_L,
|
|
hr,hregister2);
|
|
end
|
|
else
|
|
begin
|
|
hregister:=getregister32;
|
|
hregister2:=getregister32;
|
|
emit_ref_reg(A_MOV,S_L,
|
|
newreference(p^.left^.location.reference),hregister);
|
|
hr:=newreference(p^.left^.location.reference);
|
|
inc(hr^.offset,4);
|
|
emit_ref_reg(A_MOV,S_L,
|
|
hr,hregister2);
|
|
end;
|
|
end;
|
|
clear_location(p^.location);
|
|
p^.location.loc:=LOC_REGISTER;
|
|
p^.location.registerlow:=hregister;
|
|
p^.location.registerhigh:=hregister2;
|
|
end
|
|
else
|
|
{ if on the right the register then swap }
|
|
if not(noswap) and (p^.right^.location.loc=LOC_REGISTER) then
|
|
begin
|
|
swap_location(p^.location,p^.right^.location);
|
|
|
|
{ newly swapped also set swapped flag }
|
|
p^.swaped:=not(p^.swaped);
|
|
end;
|
|
{ at this point, p^.location.loc should be LOC_REGISTER }
|
|
{ and p^.location.register should be a valid register }
|
|
{ containing the left result }
|
|
|
|
if p^.right^.location.loc<>LOC_REGISTER then
|
|
begin
|
|
if (p^.treetype=subn) and p^.swaped then
|
|
begin
|
|
if p^.right^.location.loc=LOC_CREGISTER then
|
|
begin
|
|
{$ifndef noAllocEdi}
|
|
getexplicitregister32(R_EDI);
|
|
{$endif noAllocEdi}
|
|
emit_reg_reg(A_MOV,opsize,p^.right^.location.register,R_EDI);
|
|
emit_reg_reg(op,opsize,p^.location.register,R_EDI);
|
|
emit_reg_reg(A_MOV,opsize,R_EDI,p^.location.register);
|
|
{$ifndef noAllocEdi}
|
|
ungetregister32(R_EDI);
|
|
getexplicitregister32(R_EDI);
|
|
{$endif noAllocEdi}
|
|
emit_reg_reg(A_MOV,opsize,p^.right^.location.registerhigh,R_EDI);
|
|
{ the carry flag is still ok }
|
|
emit_reg_reg(op2,opsize,p^.location.registerhigh,R_EDI);
|
|
emit_reg_reg(A_MOV,opsize,R_EDI,p^.location.registerhigh);
|
|
{$ifndef noAllocEdi}
|
|
ungetregister32(R_EDI);
|
|
{$endif noAllocEdi}
|
|
end
|
|
else
|
|
begin
|
|
{$ifndef noAllocEdi}
|
|
getexplicitregister32(R_EDI);
|
|
{$endif noAllocEdi}
|
|
emit_ref_reg(A_MOV,opsize,
|
|
newreference(p^.right^.location.reference),R_EDI);
|
|
emit_reg_reg(op,opsize,p^.location.registerlow,R_EDI);
|
|
emit_reg_reg(A_MOV,opsize,R_EDI,p^.location.registerlow);
|
|
{$ifndef noAllocEdi}
|
|
ungetregister32(R_EDI);
|
|
getexplicitregister32(R_EDI);
|
|
{$endif noAllocEdi}
|
|
hr:=newreference(p^.right^.location.reference);
|
|
inc(hr^.offset,4);
|
|
emit_ref_reg(A_MOV,opsize,
|
|
hr,R_EDI);
|
|
{ here the carry flag is still preserved }
|
|
emit_reg_reg(op2,opsize,p^.location.registerhigh,R_EDI);
|
|
emit_reg_reg(A_MOV,opsize,R_EDI,
|
|
p^.location.registerhigh);
|
|
{$ifndef noAllocEdi}
|
|
ungetregister32(R_EDI);
|
|
{$endif noAllocEdi}
|
|
ungetiftemp(p^.right^.location.reference);
|
|
del_reference(p^.right^.location.reference);
|
|
end;
|
|
end
|
|
else if cmpop then
|
|
begin
|
|
if (p^.right^.location.loc=LOC_CREGISTER) then
|
|
begin
|
|
emit_reg_reg(A_CMP,S_L,p^.right^.location.registerhigh,
|
|
p^.location.registerhigh);
|
|
firstjmp64bitcmp;
|
|
emit_reg_reg(A_CMP,S_L,p^.right^.location.registerlow,
|
|
p^.location.registerlow);
|
|
secondjmp64bitcmp;
|
|
end
|
|
else
|
|
begin
|
|
hr:=newreference(p^.right^.location.reference);
|
|
inc(hr^.offset,4);
|
|
|
|
emit_ref_reg(A_CMP,S_L,
|
|
hr,p^.location.registerhigh);
|
|
firstjmp64bitcmp;
|
|
|
|
emit_ref_reg(A_CMP,S_L,newreference(
|
|
p^.right^.location.reference),p^.location.registerlow);
|
|
secondjmp64bitcmp;
|
|
|
|
emitjmp(C_None,falselabel);
|
|
|
|
ungetiftemp(p^.right^.location.reference);
|
|
del_reference(p^.right^.location.reference);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
{
|
|
if (p^.right^.treetype=ordconstn) and
|
|
(op=A_CMP) and
|
|
(p^.right^.value=0) then
|
|
begin
|
|
emit_reg_reg(A_TEST,opsize,p^.location.register,
|
|
p^.location.register);
|
|
end
|
|
else if (p^.right^.treetype=ordconstn) and
|
|
(op=A_IMUL) and
|
|
(ispowerof2(p^.right^.value,power)) then
|
|
begin
|
|
emit_const_reg(A_SHL,opsize,power,
|
|
p^.location.register);
|
|
end
|
|
else
|
|
}
|
|
begin
|
|
if (p^.right^.location.loc=LOC_CREGISTER) then
|
|
begin
|
|
emit_reg_reg(op,S_L,p^.right^.location.registerlow,
|
|
p^.location.registerlow);
|
|
emit_reg_reg(op2,S_L,p^.right^.location.registerhigh,
|
|
p^.location.registerhigh);
|
|
end
|
|
else
|
|
begin
|
|
emit_ref_reg(op,S_L,newreference(
|
|
p^.right^.location.reference),p^.location.registerlow);
|
|
hr:=newreference(p^.right^.location.reference);
|
|
inc(hr^.offset,4);
|
|
emit_ref_reg(op2,S_L,
|
|
hr,p^.location.registerhigh);
|
|
ungetiftemp(p^.right^.location.reference);
|
|
del_reference(p^.right^.location.reference);
|
|
end;
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
{ when swapped another result register }
|
|
if (p^.treetype=subn) and p^.swaped then
|
|
begin
|
|
emit_reg_reg(op,S_L,
|
|
p^.location.registerlow,
|
|
p^.right^.location.registerlow);
|
|
emit_reg_reg(op2,S_L,
|
|
p^.location.registerhigh,
|
|
p^.right^.location.registerhigh);
|
|
swap_location(p^.location,p^.right^.location);
|
|
{ newly swapped also set swapped flag }
|
|
{ just to maintain ordering }
|
|
p^.swaped:=not(p^.swaped);
|
|
end
|
|
else if cmpop then
|
|
begin
|
|
emit_reg_reg(A_CMP,S_L,
|
|
p^.right^.location.registerhigh,
|
|
p^.location.registerhigh);
|
|
firstjmp64bitcmp;
|
|
emit_reg_reg(A_CMP,S_L,
|
|
p^.right^.location.registerlow,
|
|
p^.location.registerlow);
|
|
secondjmp64bitcmp;
|
|
end
|
|
else
|
|
begin
|
|
emit_reg_reg(op,S_L,
|
|
p^.right^.location.registerlow,
|
|
p^.location.registerlow);
|
|
emit_reg_reg(op2,S_L,
|
|
p^.right^.location.registerhigh,
|
|
p^.location.registerhigh);
|
|
end;
|
|
ungetregister32(p^.right^.location.registerlow);
|
|
ungetregister32(p^.right^.location.registerhigh);
|
|
end;
|
|
|
|
if cmpop then
|
|
begin
|
|
ungetregister32(p^.location.registerlow);
|
|
ungetregister32(p^.location.registerhigh);
|
|
end;
|
|
|
|
{ only in case of overflow operations }
|
|
{ produce overflow code }
|
|
{ we must put it here directly, because sign of operation }
|
|
{ is in unsigned VAR!! }
|
|
if mboverflow then
|
|
begin
|
|
if cs_check_overflow in aktlocalswitches then
|
|
begin
|
|
getlabel(hl4);
|
|
if unsigned then
|
|
emitjmp(C_NB,hl4)
|
|
else
|
|
emitjmp(C_NO,hl4);
|
|
emitcall('FPC_OVERFLOW');
|
|
emitlab(hl4);
|
|
end;
|
|
end;
|
|
{ we have LOC_JUMP as result }
|
|
if cmpop then
|
|
begin
|
|
clear_location(p^.location);
|
|
p^.location.loc:=LOC_JUMP;
|
|
cmpop:=false;
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
{ Floating point }
|
|
if (p^.left^.resulttype^.deftype=floatdef) and
|
|
(pfloatdef(p^.left^.resulttype)^.typ<>f32bit) then
|
|
begin
|
|
{ real constants to the right, but only if it
|
|
isn't on the FPU stack, i.e. 1.0 or 0.0! }
|
|
if (p^.left^.treetype=realconstn) and
|
|
(p^.left^.location.loc<>LOC_FPU) then
|
|
swaptree(p);
|
|
cmpop:=false;
|
|
case p^.treetype of
|
|
addn : op:=A_FADDP;
|
|
muln : op:=A_FMULP;
|
|
subn : op:=A_FSUBP;
|
|
slashn : op:=A_FDIVP;
|
|
ltn,lten,gtn,gten,
|
|
equaln,unequaln : begin
|
|
op:=A_FCOMPP;
|
|
cmpop:=true;
|
|
end;
|
|
else CGMessage(type_e_mismatch);
|
|
end;
|
|
|
|
if (p^.right^.location.loc<>LOC_FPU) then
|
|
begin
|
|
if p^.right^.location.loc=LOC_CFPUREGISTER then
|
|
begin
|
|
emit_reg( A_FLD,S_NO,
|
|
correct_fpuregister(p^.right^.location.register,fpuvaroffset));
|
|
inc(fpuvaroffset);
|
|
end
|
|
else
|
|
floatload(pfloatdef(p^.right^.resulttype)^.typ,p^.right^.location.reference);
|
|
if (p^.left^.location.loc<>LOC_FPU) then
|
|
begin
|
|
if p^.left^.location.loc=LOC_CFPUREGISTER then
|
|
begin
|
|
emit_reg( A_FLD,S_NO,
|
|
correct_fpuregister(p^.left^.location.register,fpuvaroffset));
|
|
inc(fpuvaroffset);
|
|
end
|
|
else
|
|
floatload(pfloatdef(p^.left^.resulttype)^.typ,p^.left^.location.reference)
|
|
end
|
|
{ left was on the stack => swap }
|
|
else
|
|
p^.swaped:=not(p^.swaped);
|
|
|
|
{ releases the right reference }
|
|
del_reference(p^.right^.location.reference);
|
|
end
|
|
{ the nominator in st0 }
|
|
else if (p^.left^.location.loc<>LOC_FPU) then
|
|
begin
|
|
if p^.left^.location.loc=LOC_CFPUREGISTER then
|
|
begin
|
|
emit_reg( A_FLD,S_NO,
|
|
correct_fpuregister(p^.left^.location.register,fpuvaroffset));
|
|
inc(fpuvaroffset);
|
|
end
|
|
else
|
|
floatload(pfloatdef(p^.left^.resulttype)^.typ,p^.left^.location.reference)
|
|
end
|
|
{ fpu operands are always in the wrong order on the stack }
|
|
else
|
|
p^.swaped:=not(p^.swaped);
|
|
|
|
{ releases the left reference }
|
|
if (p^.left^.location.loc in [LOC_MEM,LOC_REFERENCE]) then
|
|
del_reference(p^.left^.location.reference);
|
|
|
|
{ if we swaped the tree nodes, then use the reverse operator }
|
|
if p^.swaped then
|
|
begin
|
|
if (p^.treetype=slashn) then
|
|
op:=A_FDIVRP
|
|
else if (p^.treetype=subn) then
|
|
op:=A_FSUBRP;
|
|
end;
|
|
{ to avoid the pentium bug
|
|
if (op=FDIVP) and (opt_processors=pentium) then
|
|
emitcall('EMUL_FDIVP')
|
|
else
|
|
}
|
|
{ the Intel assemblers want operands }
|
|
if op<>A_FCOMPP then
|
|
begin
|
|
emit_reg_reg(op,S_NO,R_ST,R_ST1);
|
|
dec(fpuvaroffset);
|
|
end
|
|
else
|
|
begin
|
|
emit_none(op,S_NO);
|
|
dec(fpuvaroffset,2);
|
|
end;
|
|
|
|
{ on comparison load flags }
|
|
if cmpop then
|
|
begin
|
|
if not(R_EAX in unused) then
|
|
begin
|
|
{$ifndef noAllocEdi}
|
|
getexplicitregister32(R_EDI);
|
|
{$endif noAllocEdi}
|
|
emit_reg_reg(A_MOV,S_L,R_EAX,R_EDI);
|
|
end;
|
|
emit_reg(A_FNSTSW,S_NO,R_AX);
|
|
emit_none(A_SAHF,S_NO);
|
|
if not(R_EAX in unused) then
|
|
begin
|
|
emit_reg_reg(A_MOV,S_L,R_EDI,R_EAX);
|
|
{$ifndef noAllocEdi}
|
|
ungetregister32(R_EDI);
|
|
{$endif noAllocEdi}
|
|
end;
|
|
if p^.swaped then
|
|
begin
|
|
case p^.treetype of
|
|
equaln : flags:=F_E;
|
|
unequaln : flags:=F_NE;
|
|
ltn : flags:=F_A;
|
|
lten : flags:=F_AE;
|
|
gtn : flags:=F_B;
|
|
gten : flags:=F_BE;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
case p^.treetype of
|
|
equaln : flags:=F_E;
|
|
unequaln : flags:=F_NE;
|
|
ltn : flags:=F_B;
|
|
lten : flags:=F_BE;
|
|
gtn : flags:=F_A;
|
|
gten : flags:=F_AE;
|
|
end;
|
|
end;
|
|
clear_location(p^.location);
|
|
p^.location.loc:=LOC_FLAGS;
|
|
p^.location.resflags:=flags;
|
|
cmpop:=false;
|
|
end
|
|
else
|
|
begin
|
|
clear_location(p^.location);
|
|
p^.location.loc:=LOC_FPU;
|
|
end;
|
|
end
|
|
{$ifdef SUPPORT_MMX}
|
|
else
|
|
|
|
{ MMX Arrays }
|
|
if is_mmx_able_array(p^.left^.resulttype) then
|
|
begin
|
|
cmpop:=false;
|
|
mmxbase:=mmx_type(p^.left^.resulttype);
|
|
case p^.treetype of
|
|
addn : begin
|
|
if (cs_mmx_saturation in aktlocalswitches) then
|
|
begin
|
|
case mmxbase of
|
|
mmxs8bit:
|
|
op:=A_PADDSB;
|
|
mmxu8bit:
|
|
op:=A_PADDUSB;
|
|
mmxs16bit,mmxfixed16:
|
|
op:=A_PADDSB;
|
|
mmxu16bit:
|
|
op:=A_PADDUSW;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
case mmxbase of
|
|
mmxs8bit,mmxu8bit:
|
|
op:=A_PADDB;
|
|
mmxs16bit,mmxu16bit,mmxfixed16:
|
|
op:=A_PADDW;
|
|
mmxs32bit,mmxu32bit:
|
|
op:=A_PADDD;
|
|
end;
|
|
end;
|
|
end;
|
|
muln : begin
|
|
case mmxbase of
|
|
mmxs16bit,mmxu16bit:
|
|
op:=A_PMULLW;
|
|
mmxfixed16:
|
|
op:=A_PMULHW;
|
|
end;
|
|
end;
|
|
subn : begin
|
|
if (cs_mmx_saturation in aktlocalswitches) then
|
|
begin
|
|
case mmxbase of
|
|
mmxs8bit:
|
|
op:=A_PSUBSB;
|
|
mmxu8bit:
|
|
op:=A_PSUBUSB;
|
|
mmxs16bit,mmxfixed16:
|
|
op:=A_PSUBSB;
|
|
mmxu16bit:
|
|
op:=A_PSUBUSW;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
case mmxbase of
|
|
mmxs8bit,mmxu8bit:
|
|
op:=A_PSUBB;
|
|
mmxs16bit,mmxu16bit,mmxfixed16:
|
|
op:=A_PSUBW;
|
|
mmxs32bit,mmxu32bit:
|
|
op:=A_PSUBD;
|
|
end;
|
|
end;
|
|
end;
|
|
{
|
|
ltn,lten,gtn,gten,
|
|
equaln,unequaln :
|
|
begin
|
|
op:=A_CMP;
|
|
cmpop:=true;
|
|
end;
|
|
}
|
|
xorn:
|
|
op:=A_PXOR;
|
|
orn:
|
|
op:=A_POR;
|
|
andn:
|
|
op:=A_PAND;
|
|
else CGMessage(type_e_mismatch);
|
|
end;
|
|
{ left and right no register? }
|
|
{ then one must be demanded }
|
|
if (p^.left^.location.loc<>LOC_MMXREGISTER) and
|
|
(p^.right^.location.loc<>LOC_MMXREGISTER) then
|
|
begin
|
|
{ register variable ? }
|
|
if (p^.left^.location.loc=LOC_CMMXREGISTER) then
|
|
begin
|
|
{ it is OK if this is the destination }
|
|
if is_in_dest then
|
|
begin
|
|
hregister:=p^.location.register;
|
|
emit_reg_reg(A_MOVQ,S_NO,p^.left^.location.register,
|
|
hregister);
|
|
end
|
|
else
|
|
begin
|
|
hregister:=getregistermmx;
|
|
emit_reg_reg(A_MOVQ,S_NO,p^.left^.location.register,
|
|
hregister);
|
|
end
|
|
end
|
|
else
|
|
begin
|
|
del_reference(p^.left^.location.reference);
|
|
|
|
if is_in_dest then
|
|
begin
|
|
hregister:=p^.location.register;
|
|
emit_ref_reg(A_MOVQ,S_NO,
|
|
newreference(p^.left^.location.reference),hregister);
|
|
end
|
|
else
|
|
begin
|
|
hregister:=getregistermmx;
|
|
emit_ref_reg(A_MOVQ,S_NO,
|
|
newreference(p^.left^.location.reference),hregister);
|
|
end;
|
|
end;
|
|
clear_location(p^.location);
|
|
p^.location.loc:=LOC_MMXREGISTER;
|
|
p^.location.register:=hregister;
|
|
end
|
|
else
|
|
{ if on the right the register then swap }
|
|
if (p^.right^.location.loc=LOC_MMXREGISTER) then
|
|
begin
|
|
swap_location(p^.location,p^.right^.location);
|
|
{ newly swapped also set swapped flag }
|
|
p^.swaped:=not(p^.swaped);
|
|
end;
|
|
{ at this point, p^.location.loc should be LOC_MMXREGISTER }
|
|
{ and p^.location.register should be a valid register }
|
|
{ containing the left result }
|
|
if p^.right^.location.loc<>LOC_MMXREGISTER then
|
|
begin
|
|
if (p^.treetype=subn) and p^.swaped then
|
|
begin
|
|
if p^.right^.location.loc=LOC_CMMXREGISTER then
|
|
begin
|
|
emit_reg_reg(A_MOVQ,S_NO,p^.right^.location.register,R_MM7);
|
|
emit_reg_reg(op,S_NO,p^.location.register,R_MM0);
|
|
emit_reg_reg(A_MOVQ,S_NO,R_MM7,p^.location.register);
|
|
end
|
|
else
|
|
begin
|
|
emit_ref_reg(A_MOVQ,S_NO,
|
|
newreference(p^.right^.location.reference),R_MM7);
|
|
emit_reg_reg(op,S_NO,p^.location.register,
|
|
R_MM7);
|
|
emit_reg_reg(A_MOVQ,S_NO,
|
|
R_MM7,p^.location.register);
|
|
del_reference(p^.right^.location.reference);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
if (p^.right^.location.loc=LOC_CREGISTER) then
|
|
begin
|
|
emit_reg_reg(op,S_NO,p^.right^.location.register,
|
|
p^.location.register);
|
|
end
|
|
else
|
|
begin
|
|
emit_ref_reg(op,S_NO,newreference(
|
|
p^.right^.location.reference),p^.location.register);
|
|
del_reference(p^.right^.location.reference);
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
{ when swapped another result register }
|
|
if (p^.treetype=subn) and p^.swaped then
|
|
begin
|
|
emit_reg_reg(op,S_NO,
|
|
p^.location.register,p^.right^.location.register);
|
|
swap_location(p^.location,p^.right^.location);
|
|
{ newly swapped also set swapped flag }
|
|
{ just to maintain ordering }
|
|
p^.swaped:=not(p^.swaped);
|
|
end
|
|
else
|
|
begin
|
|
emit_reg_reg(op,S_NO,
|
|
p^.right^.location.register,
|
|
p^.location.register);
|
|
end;
|
|
ungetregistermmx(p^.right^.location.register);
|
|
end;
|
|
end
|
|
{$endif SUPPORT_MMX}
|
|
else CGMessage(type_e_mismatch);
|
|
end;
|
|
SetResultLocation(cmpop,unsigned,p);
|
|
end;
|
|
|
|
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.89 2000-01-13 16:52:47 jonas
|
|
* moved deallocation of registers used in reference that points to string after
|
|
copyshortstring (this routine doesn't require extra regs)
|
|
|
|
Revision 1.88 2000/01/09 19:44:53 florian
|
|
* bug in secondadd(subn) with swaped mmx operands fixed
|
|
|
|
Revision 1.87 2000/01/09 16:35:39 jonas
|
|
+ comment about badly placed release_loc calls for a_mul which
|
|
causes wrong regdeallocations. Don't know how to fix :(
|
|
|
|
Revision 1.86 2000/01/09 12:34:59 jonas
|
|
* changed edi allocation to use getexplicitregister32/ungetregister
|
|
(adapted tgeni386 a bit for this) and enabled it by default
|
|
* fixed very big and stupid bug of mine in cg386mat that broke the
|
|
include() code (and make cycle :( ) if you compiled without
|
|
-dnewoptimizations
|
|
|
|
Revision 1.85 2000/01/09 01:44:18 jonas
|
|
+ (de)allocation info for EDI to fix reported bug on mailinglist.
|
|
Also some (de)allocation info for ESI added. Between -dallocEDI
|
|
because at this time of the night bugs could easily slip in ;)
|
|
|
|
Revision 1.84 2000/01/07 01:14:20 peter
|
|
* updated copyright to 2000
|
|
|
|
Revision 1.83 1999/12/11 18:53:31 jonas
|
|
* fixed type conversions of results of operations with cardinals
|
|
(between -dcardinalmulfix)
|
|
|
|
Revision 1.82 1999/11/06 14:34:17 peter
|
|
* truncated log to 20 revs
|
|
|
|
Revision 1.81 1999/09/28 19:43:45 florian
|
|
* the maybe_push fix of Pierre wasn't 100%, the tree parameter
|
|
must contain a valid location (which is saved if necessary)
|
|
|
|
Revision 1.80 1999/09/26 13:26:01 florian
|
|
* exception patch of Romio nevertheless the excpetion handling
|
|
needs some corections regarding register saving
|
|
* gettempansistring is again a procedure
|
|
|
|
Revision 1.79 1999/09/21 20:53:21 florian
|
|
* fixed 1/s problem from mailing list
|
|
|
|
Revision 1.78 1999/09/07 07:52:19 peter
|
|
* > < >= <= support for boolean
|
|
* boolean constants are now calculated like integer constants
|
|
|
|
Revision 1.77 1999/08/30 12:00:45 pierre
|
|
* problem with maybe_push/restore solved hopefully
|
|
|
|
Revision 1.76 1999/08/23 23:31:00 pierre
|
|
* double del_location removed in add_set
|
|
|
|
Revision 1.75 1999/08/23 10:35:13 jonas
|
|
* fixed <= and >= for sets
|
|
|
|
Revision 1.74 1999/08/19 13:08:43 pierre
|
|
* emit_??? used
|
|
|
|
Revision 1.73 1999/08/07 11:29:26 peter
|
|
* better fix for muln register allocation
|
|
|
|
Revision 1.72 1999/08/04 13:45:17 florian
|
|
+ floating point register variables !!
|
|
* pairegalloc is now generated for register variables
|
|
|
|
Revision 1.71 1999/08/04 00:22:40 florian
|
|
* renamed i386asm and i386base to cpuasm and cpubase
|
|
|
|
Revision 1.70 1999/08/03 22:02:31 peter
|
|
* moved bitmask constants to sets
|
|
* some other type/const renamings
|
|
|
|
Revision 1.69 1999/07/05 20:13:06 peter
|
|
* removed temp defines
|
|
|
|
Revision 1.68 1999/07/02 12:18:46 jonas
|
|
* released setconstnot (changed to $ifndef nosetconstnot)
|
|
* released shlmul (changed to $ifndef no shlmul)
|
|
|
|
Revision 1.67 1999/06/14 17:47:45 peter
|
|
* merged
|
|
|
|
Revision 1.66.2.1 1999/06/14 17:24:40 peter
|
|
* fixed saving of registers with decr_ansistr
|
|
|
|
Revision 1.66 1999/06/09 23:22:37 peter
|
|
+ del_location
|
|
|
|
Revision 1.65 1999/06/09 23:00:11 peter
|
|
* small ansistring fixes
|
|
* val_ansistr_sint destsize changed to longint
|
|
* don't write low/hi ascii with -al
|
|
|
|
Revision 1.64 1999/06/02 10:11:39 florian
|
|
* make cycle fixed i.e. compilation with 0.99.10
|
|
* some fixes for qword
|
|
* start of register calling conventions
|
|
|
|
Revision 1.63 1999/05/31 20:35:45 peter
|
|
* ansistring fixes, decr_ansistr called after all temp ansi reuses
|
|
|
|
}
|