{ $Id$ Copyright (c) 1998-2002 by Florian Klaempfl Generate i386 assembler for in call nodes This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. **************************************************************************** } unit ncgcal; {$i fpcdefs.inc} interface uses cpubase, globtype, symdef,node,ncal; type tcgcallparanode = class(tcallparanode) private tempparaloc : tparalocation; public procedure secondcallparan(push_from_left_to_right:boolean;calloption:tproccalloption; para_alignment,para_offset : longint);override; end; tcgcallnode = class(tcallnode) private procedure release_para_temps; procedure normal_pass_2; procedure inlined_pass_2; protected refcountedtemp : treference; procedure handle_return_value; {# This routine is used to push the current frame pointer on the stack. This is used in nested routines where the value of the frame pointer is always pushed as an extra parameter. The default handling is the standard handling used on most stack based machines, where the frame pointer is the first invisible parameter. } function align_parasize:longint;virtual; procedure pop_parasize(pop_size:longint);virtual; procedure push_framepointer;virtual; procedure free_pushed_framepointer;virtual; procedure extra_interrupt_code;virtual; public procedure pass_2;override; end; implementation uses systems, cutils,verbose,globals, symconst,symbase,symsym,symtable,defutil,paramgr, {$ifdef GDB} {$ifdef delphi} sysutils, {$else} strings, {$endif} gdb, {$endif GDB} cginfo,cgbase,pass_2, cpuinfo,aasmbase,aasmtai,aasmcpu, nbas,nmem,nld,ncnv, {$ifdef x86} cga, {$endif x86} {$ifdef cpu64bit} cg64f64, {$else cpu64bit} cg64f32, {$endif cpu64bit} ncgutil,cgobj,tgobj,regvars,rgobj,rgcpu; {***************************************************************************** TCGCALLPARANODE *****************************************************************************} procedure tcgcallparanode.secondcallparan(push_from_left_to_right:boolean;calloption:tproccalloption;para_alignment,para_offset : longint); var otlabel, oflabel : tasmlabel; tmpreg : tregister; href : treference; begin if not(assigned(paraitem.paratype.def) or assigned(paraitem.parasym)) then internalerror(200304242); { set default para_alignment to target_info.stackalignment } if para_alignment=0 then para_alignment:=aktalignment.paraalign; { push from left to right if specified } if push_from_left_to_right and assigned(right) then begin tcallparanode(right).secondcallparan(push_from_left_to_right, calloption,para_alignment,para_offset); end; otlabel:=truelabel; oflabel:=falselabel; objectlibrary.getlabel(truelabel); objectlibrary.getlabel(falselabel); secondpass(left); { Allocate (temporary) paralocation } tempparaloc:=paraitem.paraloc[callerside]; if tempparaloc.loc=LOC_REGISTER then paramanager.alloctempregs(exprasmlist,tempparaloc) else paramanager.allocparaloc(exprasmlist,tempparaloc); { handle varargs first, because defcoll is not valid } if (nf_varargs_para in flags) then begin if paramanager.push_addr_param(left.resulttype.def,calloption) then begin inc(pushedparasize,POINTER_SIZE); cg.a_paramaddr_ref(exprasmlist,left.location.reference,tempparaloc); location_release(exprasmlist,left.location); end else push_value_para(exprasmlist,left,calloption,para_offset,para_alignment,tempparaloc); end { hidden parameters } else if paraitem.is_hidden then begin { don't push a node that already generated a pointer type by address for implicit hidden parameters } if (vo_is_funcret in tvarsym(paraitem.parasym).varoptions) or (not(left.resulttype.def.deftype in [pointerdef,classrefdef]) and paramanager.push_addr_param(paraitem.paratype.def,calloption)) then begin if not(left.location.loc in [LOC_CREFERENCE,LOC_REFERENCE]) then internalerror(200305071); inc(pushedparasize,POINTER_SIZE); if calloption=pocall_inline then begin tmpreg:=rg.getaddressregister(exprasmlist); cg.a_loadaddr_ref_reg(exprasmlist,left.location.reference,tmpreg); reference_reset_base(href,current_procinfo.framepointer,para_offset-pushedparasize); cg.a_load_reg_ref(exprasmlist,OS_ADDR,OS_ADDR,tmpreg,href); rg.ungetregisterint(exprasmlist,tmpreg); end else cg.a_paramaddr_ref(exprasmlist,left.location.reference,tempparaloc); location_release(exprasmlist,left.location); end else begin push_value_para(exprasmlist,left,calloption, para_offset,para_alignment,tempparaloc); end; end { filter array of const c styled args } else if is_array_of_const(left.resulttype.def) and (nf_cargs in left.flags) then begin { nothing, everything is already pushed } end { in codegen.handleread.. paraitem.data is set to nil } else if assigned(paraitem.paratype.def) and (paraitem.paratype.def.deftype=formaldef) then begin { allow passing of a constant to a const formaldef } if (tvarsym(paraitem.parasym).varspez=vs_const) and (left.location.loc=LOC_CONSTANT) then location_force_mem(exprasmlist,left.location); { allow @var } inc(pushedparasize,POINTER_SIZE); if (left.nodetype=addrn) and (not(nf_procvarload in left.flags)) then begin if calloption=pocall_inline then begin reference_reset_base(href,current_procinfo.framepointer,para_offset-pushedparasize); cg.a_load_loc_ref(exprasmlist,OS_ADDR,left.location,href); end else cg.a_param_loc(exprasmlist,left.location,tempparaloc); location_release(exprasmlist,left.location); end else begin if not(left.location.loc in [LOC_CREFERENCE,LOC_REFERENCE]) then internalerror(200304235); if calloption=pocall_inline then begin tmpreg:=rg.getaddressregister(exprasmlist); cg.a_loadaddr_ref_reg(exprasmlist,left.location.reference,tmpreg); reference_reset_base(href,current_procinfo.framepointer,para_offset-pushedparasize); cg.a_load_reg_ref(exprasmlist,OS_ADDR,OS_ADDR,tmpreg,href); rg.ungetregisterint(exprasmlist,tmpreg); end else cg.a_paramaddr_ref(exprasmlist,left.location.reference,tempparaloc); location_release(exprasmlist,left.location); end; end { handle call by reference parameter } else if (paraitem.paratyp in [vs_var,vs_out]) then begin if (left.location.loc<>LOC_REFERENCE) then begin { passing self to a var parameter is allowed in TP and delphi } if not((left.location.loc=LOC_CREFERENCE) and is_self_node(left)) then internalerror(200106041); end; if (paraitem.paratyp=vs_out) and assigned(paraitem.paratype.def) and not is_class(paraitem.paratype.def) and paraitem.paratype.def.needs_inittable then cg.g_finalize(exprasmlist,paraitem.paratype.def,left.location.reference,false); inc(pushedparasize,POINTER_SIZE); if calloption=pocall_inline then begin tmpreg:=rg.getaddressregister(exprasmlist); cg.a_loadaddr_ref_reg(exprasmlist,left.location.reference,tmpreg); reference_reset_base(href,current_procinfo.framepointer,para_offset-pushedparasize); cg.a_load_reg_ref(exprasmlist,OS_ADDR,OS_ADDR,tmpreg,href); rg.ungetregisterint(exprasmlist,tmpreg); end else cg.a_paramaddr_ref(exprasmlist,left.location.reference,tempparaloc); location_release(exprasmlist,left.location); end else begin { don't push a node that already generated a pointer type by address for implicit hidden parameters } if (not( paraitem.is_hidden and (left.resulttype.def.deftype in [pointerdef,classrefdef]) ) and paramanager.push_addr_param(paraitem.paratype.def,calloption)) then begin if not(left.location.loc in [LOC_CREFERENCE,LOC_REFERENCE]) then begin { allow passing nil to a procvardef (methodpointer) } if (left.nodetype=typeconvn) and (left.resulttype.def.deftype=procvardef) and (ttypeconvnode(left).left.nodetype=niln) then begin tg.GetTemp(exprasmlist,tcgsize2size[left.location.size],tt_normal,href); if not (left.location.size in [OS_64,OS_S64]) then cg.a_load_loc_ref(exprasmlist,left.location.size,left.location,href) else cg64.a_load64_loc_ref(exprasmlist,left.location,href); location_reset(left.location,LOC_REFERENCE,left.location.size); left.location.reference:=href; end else internalerror(200204011); end; inc(pushedparasize,POINTER_SIZE); if calloption=pocall_inline then begin tmpreg:=rg.getaddressregister(exprasmlist); cg.a_loadaddr_ref_reg(exprasmlist,left.location.reference,tmpreg); reference_reset_base(href,current_procinfo.framepointer,para_offset-pushedparasize); cg.a_load_reg_ref(exprasmlist,OS_ADDR,OS_ADDR,tmpreg,href); rg.ungetregisterint(exprasmlist,tmpreg); end else cg.a_paramaddr_ref(exprasmlist,left.location.reference,tempparaloc); location_release(exprasmlist,left.location); end else begin push_value_para(exprasmlist,left,calloption, para_offset,para_alignment,tempparaloc); end; end; truelabel:=otlabel; falselabel:=oflabel; { update return location in callnode when this is the function result } if (vo_is_funcret in tvarsym(paraitem.parasym).varoptions) then begin location_copy(aktcallnode.location,left.location); end; { push from right to left } if not push_from_left_to_right and assigned(right) then begin tcallparanode(right).secondcallparan(push_from_left_to_right, calloption,para_alignment,para_offset); end; end; {***************************************************************************** TCGCALLNODE *****************************************************************************} procedure tcgcallnode.extra_interrupt_code; begin end; function tcgcallnode.align_parasize:longint; begin result:=0; end; procedure tcgcallnode.pop_parasize(pop_size:longint); begin end; procedure tcgcallnode.push_framepointer; var href : treference; hregister : tregister; begin { this routine is itself not nested } if current_procinfo.procdef.parast.symtablelevel=(tprocdef(procdefinition).parast.symtablelevel) then begin reference_reset_base(href,current_procinfo.framepointer,current_procinfo.parent_framepointer_offset); cg.a_param_ref(exprasmlist,OS_ADDR,href,paramanager.getintparaloc(exprasmlist,1)); end { one nesting level } else if (current_procinfo.procdef.parast.symtablelevel=(tprocdef(procdefinition).parast.symtablelevel)-1) then begin cg.a_param_reg(exprasmlist,OS_ADDR,current_procinfo.framepointer,paramanager.getintparaloc(exprasmlist,1)); end { very complex nesting level ... } else if (current_procinfo.procdef.parast.symtablelevel>(tprocdef(procdefinition).parast.symtablelevel)) then begin hregister:=rg.getaddressregister(exprasmlist); cg.g_load_parent_framepointer(exprasmlist,tprocdef(procdefinition).parast,hregister); cg.a_param_reg(exprasmlist,OS_ADDR,hregister,paramanager.getintparaloc(exprasmlist,1)); rg.ungetaddressregister(exprasmlist,hregister); end; end; procedure tcgcallnode.free_pushed_framepointer; begin paramanager.freeintparaloc(exprasmlist,1); end; procedure tcgcallnode.handle_return_value; var cgsize : tcgsize; hregister : tregister; tempnode: tnode; begin { structured results are easy to handle.... } { needed also when result_no_used !! } if paramanager.ret_in_param(resulttype.def,procdefinition.proccalloption) then begin { Location should be setup by the funcret para } if location.loc<>LOC_REFERENCE then internalerror(200304241); end else { ansi/widestrings must be registered, so we can dispose them } if is_ansistring(resulttype.def) or is_widestring(resulttype.def) then begin { the FUNCTION_RESULT_REG is already allocated } rg.ungetregisterint(exprasmlist,NR_FUNCTION_RESULT_REG); if not assigned(funcretnode) then begin location_reset(location,LOC_CREFERENCE,OS_ADDR); location.reference:=refcountedtemp; cg.a_load_reg_ref(exprasmlist,OS_ADDR,OS_ADDR,NR_FUNCTION_RESULT_REG,location.reference); end else begin hregister := rg.getaddressregister(exprasmlist); cg.a_load_reg_reg(exprasmlist,OS_ADDR,OS_ADDR,NR_FUNCTION_RESULT_REG,hregister); { in case of a regular funcretnode with ret_in_param, the } { original funcretnode isn't touched -> make sure it's } { the same here (not sure if it's necessary) } tempnode := funcretnode.getcopy; tempnode.pass_2; location := tempnode.location; tempnode.free; cg.g_decrrefcount(exprasmlist,resulttype.def,location.reference, false); cg.a_load_reg_ref(exprasmlist,OS_ADDR,OS_ADDR,hregister,location.reference); rg.ungetregisterint(exprasmlist,hregister); end; end else { we have only to handle the result if it is used } if (nf_return_value_used in flags) then begin if (resulttype.def.deftype=floatdef) then begin location_reset(location,LOC_FPUREGISTER,def_cgsize(resulttype.def)); {$ifdef cpufpemu} if cs_fp_emulation in aktmoduleswitches then location.register:=NR_FUNCTION_RESULT_REG else {$endif cpufpemu} location.register:=NR_FPU_RESULT_REG; {$ifdef x86} inc(trgcpu(rg).fpuvaroffset); {$else x86} hregister := rg.getregisterfpu(exprasmlist,location.size); cg.a_loadfpu_reg_reg(exprasmlist,location.size,location.register,hregister); location.register := hregister; {$endif x86} end else begin cgsize:=def_cgsize(resulttype.def); { an object constructor is a function with pointer result } if (procdefinition.proctypeoption=potype_constructor) then cgsize:=OS_ADDR; if cgsize<>OS_NO then begin location_reset(location,LOC_REGISTER,cgsize); {$ifndef cpu64bit} if cgsize in [OS_64,OS_S64] then begin { Move the function result to free registers, preferably the FUNCTION_RESULT_REG/FUNCTION_RESULTHIGH_REG, so no move is necessary.} { the FUNCTION_RESULT_LOW_REG/FUNCTION_RESULT_HIGH_REG are already allocated } rg.ungetregisterint(exprasmlist,NR_FUNCTION_RESULT64_LOW_REG); location.registerlow:=rg.getregisterint(exprasmlist,OS_INT); cg.a_load_reg_reg(exprasmlist,OS_32,OS_32,NR_FUNCTION_RESULT64_LOW_REG,location.registerlow); rg.ungetregisterint(exprasmlist,NR_FUNCTION_RESULT64_HIGH_REG); location.registerhigh:=rg.getregisterint(exprasmlist,OS_INT); cg.a_load_reg_reg(exprasmlist,OS_32,OS_32,NR_FUNCTION_RESULT64_HIGH_REG,location.registerhigh); end else {$endif cpu64bit} begin {Move the function result to a free register, preferably the FUNCTION_RESULT_REG, so no move is necessary.} { the FUNCTION_RESULT_REG is already allocated } rg.ungetregisterint(exprasmlist,NR_FUNCTION_RESULT_REG); { change register size after the unget because the getregister was done for the full register } location.register:=rg.getregisterint(exprasmlist,cgsize); cg.a_load_reg_reg(exprasmlist,cgsize,cgsize,rg.makeregsize(NR_FUNCTION_RESULT_REG,cgsize),location.register); end; end else begin if resulttype.def.size>0 then internalerror(200305131); end; end; end else begin cgsize:=def_cgsize(resulttype.def); { an object constructor is a function with pointer result } if (procdefinition.proctypeoption=potype_constructor) then cgsize:=OS_ADDR; if cgsize<>OS_NO then {$ifndef cpu64bit} if cgsize in [OS_64,OS_S64] then begin rg.ungetregisterint(exprasmlist,NR_FUNCTION_RESULT64_LOW_REG); rg.ungetregisterint(exprasmlist,NR_FUNCTION_RESULT64_HIGH_REG); end else {$endif cpu64bit} rg.ungetregisterint(exprasmlist,NR_FUNCTION_RESULT_REG); location_reset(location,LOC_VOID,OS_NO); end; end; procedure tcgcallnode.release_para_temps; var hp : tnode; ppn : tcallparanode; begin { Release temps from parameters } ppn:=tcallparanode(left); while assigned(ppn) do begin if assigned(ppn.left) then begin { don't release the funcret temp } if not(vo_is_funcret in tvarsym(ppn.paraitem.parasym).varoptions) then location_freetemp(exprasmlist,ppn.left.location); { process also all nodes of an array of const } if ppn.left.nodetype=arrayconstructorn then begin if assigned(tarrayconstructornode(ppn.left).left) then begin hp:=ppn.left; while assigned(hp) do begin location_freetemp(exprasmlist,tarrayconstructornode(hp).left.location); hp:=tarrayconstructornode(hp).right; end; end; end; end; ppn:=tcallparanode(ppn.right); end; end; procedure tcgcallnode.normal_pass_2; var regs_to_push_other : totherregisterset; unusedstate: pointer; regs_to_alloc,regs_to_free:Tsuperregisterset; pushedother : tpushedsavedother; oldpushedparasize : longint; { adress returned from an I/O-error } iolabel : tasmlabel; { help reference pointer } href,helpref : treference; para_alignment, pop_size : longint; vmtreg,vmtreg2 : tregister; oldaktcallnode : tcallnode; procedure pushparas; var ppn : tcgcallparanode; begin { copy all resources to the allocated registers } ppn:=tcgcallparanode(left); while assigned(ppn) do begin if ppn.tempparaloc.loc=LOC_REGISTER then begin paramanager.allocparaloc(exprasmlist,ppn.paraitem.paraloc[callerside]); {$ifdef sparc} case ppn.tempparaloc.size of OS_F32 : ppn.tempparaloc.size:=OS_32; OS_F64 : ppn.tempparaloc.size:=OS_64; end; {$endif sparc} {$ifndef cpu64bit} if ppn.tempparaloc.size in [OS_64,OS_S64] then begin cg.a_load_reg_reg(exprasmlist,OS_32,OS_32,ppn.tempparaloc.registerlow, ppn.paraitem.paraloc[callerside].registerlow); cg.a_load_reg_reg(exprasmlist,OS_32,OS_32,ppn.tempparaloc.registerhigh, ppn.paraitem.paraloc[callerside].registerhigh); end else {$endif cpu64bit} cg.a_load_reg_reg(exprasmlist,ppn.tempparaloc.size,ppn.tempparaloc.size, ppn.tempparaloc.register,ppn.paraitem.paraloc[callerside].register); end; ppn:=tcgcallparanode(ppn.right); end; end; procedure freeparas; var ppn : tcgcallparanode; begin { free the resources allocated for the parameters } ppn:=tcgcallparanode(left); while assigned(ppn) do begin if ppn.tempparaloc.loc=LOC_REGISTER then paramanager.freeparaloc(exprasmlist,ppn.tempparaloc); paramanager.freeparaloc(exprasmlist,ppn.paraitem.paraloc[callerside]); ppn:=tcgcallparanode(ppn.right); end; { free pushed base pointer } if (right=nil) and (current_procinfo.procdef.parast.symtablelevel>=normal_function_level) and assigned(tprocdef(procdefinition).parast) and ((tprocdef(procdefinition).parast.symtablelevel)>normal_function_level) then free_pushed_framepointer; end; begin if not assigned(procdefinition) then internalerror(200305264); { calculate the parameter info for the procdef } if not procdefinition.has_paraloc_info then begin paramanager.create_paraloc_info(procdefinition,callerside); procdefinition.has_paraloc_info:=true; end; iolabel:=nil; rg.saveunusedstate(unusedstate); if not assigned(funcretnode) then begin { if we allocate the temp. location for ansi- or widestrings } { already here, we avoid later a push/pop } if is_widestring(resulttype.def) then begin tg.gettemp(exprasmlist,pointer_size,tt_widestring,refcountedtemp); cg.g_decrrefcount(exprasmlist,resulttype.def,refcountedtemp,false); end else if is_ansistring(resulttype.def) then begin tg.GetTemp(exprasmlist,pointer_size,tt_ansistring,refcountedtemp); cg.g_decrrefcount(exprasmlist,resulttype.def,refcountedtemp,false); end; end; if (procdefinition.proccalloption in [pocall_cdecl,pocall_cppdecl,pocall_stdcall]) then para_alignment:=4 else para_alignment:=aktalignment.paraalign; { proc variables destroy all registers } if (right=nil) and { virtual methods too } not(po_virtualmethod in procdefinition.procoptions) then begin if (cs_check_io in aktlocalswitches) and (po_iocheck in procdefinition.procoptions) and not(po_iocheck in current_procinfo.procdef.procoptions) then begin objectlibrary.getaddrlabel(iolabel); cg.a_label(exprasmlist,iolabel); end else iolabel:=nil; regs_to_alloc:=Tprocdef(procdefinition).usedintregisters; {$ifdef i386} regs_to_push_other := tprocdef(procdefinition).usedotherregisters; {$else i386} regs_to_push_other := VOLATILE_FPUREGISTERS; {$endif i386} { on the ppc, ever procedure saves the non-volatile registers it uses itself } { and must make sure it saves its volatile registers before doing a call } {$ifdef i386} { give used registers through } rg.used_in_proc_int:=rg.used_in_proc_int + tprocdef(procdefinition).usedintregisters; rg.used_in_proc_other:=rg.used_in_proc_other + tprocdef(procdefinition).usedotherregisters; {$endif i386} end else begin regs_to_alloc:=VOLATILE_INTREGISTERS; {$ifdef i386} regs_to_push_other := all_otherregisters; {$else i386} regs_to_push_other := VOLATILE_FPUREGISTERS; {$endif i386} {$ifdef i386} rg.used_in_proc_int:=VOLATILE_INTREGISTERS; rg.used_in_proc_other:=all_otherregisters; {$endif i386} { no IO check for methods and procedure variables } iolabel:=nil; end; { Include Function result registers } if (not is_void(resulttype.def)) then begin case procdefinition.funcret_paraloc[callerside].loc of LOC_REGISTER,LOC_CREGISTER: begin {$ifndef cpu64bit} if procdefinition.funcret_paraloc[callerside].size in [OS_S64,OS_64] then begin include(regs_to_alloc,getsupreg(procdefinition.funcret_paraloc[callerside].registerlow)); include(regs_to_alloc,getsupreg(procdefinition.funcret_paraloc[callerside].registerhigh)); end else {$endif cpu64bit} include(regs_to_alloc,getsupreg(procdefinition.funcret_paraloc[callerside].register)); end; end; end; { Save registers destroyed by the call } rg.saveusedotherregisters(exprasmlist,pushedother,regs_to_push_other); { Initialize for pushing the parameters } oldpushedparasize:=pushedparasize; pushedparasize:=0; { Align stack if required } pop_size:=align_parasize; { Push parameters } oldaktcallnode:=aktcallnode; aktcallnode:=self; {$ifndef i386} { process procvar. Done here already, because otherwise it may } { destroy registers containing a parameter for the actual } { function call (e.g. if it's a function, its result will } { overwrite r3, which contains the first parameter) (JM) } if assigned(right) then secondpass(right); if (po_virtualmethod in procdefinition.procoptions) and assigned(methodpointer) then begin secondpass(methodpointer); location_force_reg(exprasmlist,methodpointer.location,OS_ADDR,false); { virtual methods require an index } if tprocdef(procdefinition).extnumber=-1 then internalerror(200304021); { VMT should already be loaded in a register } if methodpointer.location.register=NR_NO then internalerror(200304022); { test validity of VMT } if not(is_interface(tprocdef(procdefinition)._class)) and not(is_cppclass(tprocdef(procdefinition)._class)) then cg.g_maybe_testvmt(exprasmlist,methodpointer.location.register,tprocdef(procdefinition)._class); end; {$endif not i386} { Process parameters } if assigned(left) then begin tcallparanode(left).secondcallparan( (po_leftright in procdefinition.procoptions),procdefinition.proccalloption, para_alignment,0); pushparas; end; aktcallnode:=oldaktcallnode; { procedure variable or normal function call ? } if (right=nil) then begin { push base pointer ?} if (current_procinfo.procdef.parast.symtablelevel>=normal_function_level) and assigned(tprocdef(procdefinition).parast) and ((tprocdef(procdefinition).parast.symtablelevel)>normal_function_level) then push_framepointer; rg.saveotherregvars(exprasmlist,regs_to_push_other); if (po_virtualmethod in procdefinition.procoptions) and assigned(methodpointer) then begin {$ifdef i386} secondpass(methodpointer); location_force_reg(exprasmlist,methodpointer.location,OS_ADDR,false); vmtreg:=methodpointer.location.register; { virtual methods require an index } if tprocdef(procdefinition).extnumber=-1 then internalerror(200304021); { VMT should already be loaded in a register } if vmtreg=NR_NO then internalerror(200304022); { test validity of VMT } if not(is_interface(tprocdef(procdefinition)._class)) and not(is_cppclass(tprocdef(procdefinition)._class)) then cg.g_maybe_testvmt(exprasmlist,vmtreg,tprocdef(procdefinition)._class); {$else} vmtreg:=methodpointer.location.register; {$endif} { release self } rg.ungetaddressregister(exprasmlist,vmtreg); vmtreg2:=rg.getabtregisterint(exprasmlist,OS_ADDR); rg.ungetregisterint(exprasmlist,vmtreg2); cg.a_load_reg_reg(exprasmlist,OS_ADDR,OS_ADDR,vmtreg,vmtreg2); { free the resources allocated for the parameters } freeparas; rg.allocexplicitregistersint(exprasmlist,regs_to_alloc); { call method } reference_reset_base(href,vmtreg2, tprocdef(procdefinition)._class.vmtmethodoffset(tprocdef(procdefinition).extnumber)); cg.a_call_ref(exprasmlist,href); end else begin { free the resources allocated for the parameters } freeparas; rg.allocexplicitregistersint(exprasmlist,regs_to_alloc); { Calling interrupt from the same code requires some extra code } if (po_interrupt in procdefinition.procoptions) then extra_interrupt_code; cg.a_call_name(exprasmlist,tprocdef(procdefinition).mangledname); end; end else { now procedure variable case } begin {$ifdef i386} secondpass(right); {$endif i386} if right.location.loc in [LOC_REFERENCE,LOC_CREFERENCE] then begin helpref:=right.location.reference; if (helpref.index<>NR_NO) and (helpref.index<>NR_FRAME_POINTER_REG) then begin rg.ungetregisterint(exprasmlist,helpref.index); helpref.index:=rg.getabtregisterint(exprasmlist,OS_ADDR); cg.a_load_reg_reg(exprasmlist,OS_ADDR,OS_ADDR, right.location.reference.index,helpref.index); end; if (helpref.base<>NR_NO) and (helpref.base<>NR_FRAME_POINTER_REG) then begin rg.ungetregisterint(exprasmlist,helpref.base); helpref.base:=rg.getabtregisterint(exprasmlist,OS_ADDR); cg.a_load_reg_reg(exprasmlist,OS_ADDR,OS_ADDR, right.location.reference.base,helpref.base); end; reference_release(exprasmlist,helpref); end else rg.ungetregisterint(exprasmlist,right.location.register); location_freetemp(exprasmlist,right.location); { free the resources allocated for the parameters } freeparas; rg.allocexplicitregistersint(exprasmlist,regs_to_alloc); { Calling interrupt from the same code requires some extra code } if (po_interrupt in procdefinition.procoptions) then extra_interrupt_code; rg.saveotherregvars(exprasmlist,ALL_OTHERREGISTERS); if right.location.loc in [LOC_REFERENCE,LOC_CREFERENCE] then cg.a_call_ref(exprasmlist,helpref) else cg.a_call_reg(exprasmlist,right.location.register); { cg.a_call_loc(exprasmlist,right.location);} location_release(exprasmlist,right.location); location_freetemp(exprasmlist,right.location); end; { Need to remove the parameters from the stack? } if (po_clearstack in procdefinition.procoptions) then begin { the old pop_size was already included in pushedparasize } pop_size:=pushedparasize; { for Cdecl functions we don't need to pop the funcret when it was pushed by para } if paramanager.ret_in_param(procdefinition.rettype.def,procdefinition.proccalloption) then dec(pop_size,POINTER_SIZE); end; { Remove parameters/alignment from the stack } if pop_size>0 then pop_parasize(pop_size); { Reserve space for storing parameters that will be pushed } current_procinfo.allocate_push_parasize(pushedparasize); { Restore } pushedparasize:=oldpushedparasize; rg.restoreunusedstate(unusedstate); {$ifdef TEMPREGDEBUG} testregisters32; {$endif TEMPREGDEBUG} { Release registers, but not the registers that contain the function result } regs_to_free:=regs_to_alloc; if (not is_void(resulttype.def)) then begin case procdefinition.funcret_paraloc[callerside].loc of LOC_REGISTER,LOC_CREGISTER: begin {$ifndef cpu64bit} if procdefinition.funcret_paraloc[callerside].size in [OS_S64,OS_64] then begin exclude(regs_to_free,getsupreg(procdefinition.funcret_paraloc[callerside].registerlow)); exclude(regs_to_free,getsupreg(procdefinition.funcret_paraloc[callerside].registerhigh)); end else {$endif cpu64bit} exclude(regs_to_free,getsupreg(procdefinition.funcret_paraloc[callerside].register)); end; end; end; rg.deallocexplicitregistersint(exprasmlist,regs_to_free); { handle function results } if (not is_void(resulttype.def)) then handle_return_value else location_reset(location,LOC_VOID,OS_NO); { perhaps i/o check ? } if iolabel<>nil then begin //reference_reset_symbol(href,iolabel,0); //cg.a_paramaddr_ref(exprasmlist,href,paramanager.getintparaloc(exprasmlist,1)); //paramanager.freeintparaloc(exprasmlist,1); rg.allocexplicitregistersint(exprasmlist,VOLATILE_INTREGISTERS); cg.a_call_name(exprasmlist,'FPC_IOCHECK'); rg.deallocexplicitregistersint(exprasmlist,VOLATILE_INTREGISTERS); end; { restore registers } rg.restoreusedotherregisters(exprasmlist,pushedother); { release temps of paras } release_para_temps; { if return value is not used } if (not(nf_return_value_used in flags)) and (not is_void(resulttype.def)) then begin if location.loc in [LOC_CREFERENCE,LOC_REFERENCE] then begin { data which must be finalized ? } if (resulttype.def.needs_inittable) then cg.g_finalize(exprasmlist,resulttype.def,location.reference,false); { release unused temp } tg.ungetiftemp(exprasmlist,location.reference) end else if location.loc=LOC_FPUREGISTER then begin {$ifdef x86} { release FPU stack } emit_reg(A_FSTP,S_NO,NR_FPU_RESULT_REG); { dec(trgcpu(rg).fpuvaroffset); do NOT decrement as the increment before is not called for unused results PM } {$endif x86} end; end; end; procedure tcgcallnode.inlined_pass_2; var regs_to_push_int : Tsuperregisterset; regs_to_push_other : totherregisterset; unusedstate: pointer; pushedother : tpushedsavedother; oldpushedparasize : longint; { adress returned from an I/O-error } iolabel : tasmlabel; oldaktcallnode : tcallnode; oldprocdef : tprocdef; i : longint; oldprocinfo : tprocinfo; oldinlining_procedure : boolean; inlineentrycode,inlineexitcode : TAAsmoutput; oldregstate: pointer; old_local_fixup, old_para_fixup : longint; usesacc,usesacchi,usesfpu : boolean; pararef, localsref : treference; {$ifdef GDB} startlabel,endlabel : tasmlabel; pp : pchar; mangled_length : longint; {$endif GDB} begin if not(assigned(procdefinition) and (procdefinition.deftype=procdef)) then internalerror(200305262); oldinlining_procedure:=inlining_procedure; oldprocdef:=current_procinfo.procdef; oldprocinfo:=current_procinfo; { we're inlining a procedure } inlining_procedure:=true; { calculate the parameter info for the procdef } if not procdefinition.has_paraloc_info then begin paramanager.create_paraloc_info(procdefinition,callerside); procdefinition.has_paraloc_info:=true; end; { deallocate the registers used for the current procedure's regvars } if assigned(current_procinfo.procdef.regvarinfo) then begin with pregvarinfo(current_procinfo.procdef.regvarinfo)^ do for i := 1 to maxvarregs do if assigned(regvars[i]) then store_regvar(exprasmlist,regvars[i].reg); rg.saveStateForInline(oldregstate); { make sure the register allocator knows what the regvars in the } { inlined code block are (JM) } rg.resetusableregisters; rg.clearregistercount; if assigned(tprocdef(procdefinition).regvarinfo) then with pregvarinfo(tprocdef(procdefinition).regvarinfo)^ do for i := 1 to maxvarregs do if assigned(regvars[i]) then begin {Fix me!!} {tmpreg:=rg.makeregsize(regvars[i].reg,OS_INT); rg.makeregvar(tmpreg);} internalerror(200301232); end; end; { create temp procinfo } current_procinfo:=cprocinfo.create(nil); current_procinfo.procdef:=tprocdef(procdefinition); { Localsymtable } current_procinfo.procdef.localst.symtablelevel:=oldprocdef.localst.symtablelevel; if current_procinfo.procdef.localst.datasize>0 then begin old_local_fixup:=current_procinfo.procdef.localst.address_fixup; tg.GetTemp(exprasmlist,current_procinfo.procdef.localst.datasize,tt_persistent,localsref); if tg.direction>0 then current_procinfo.procdef.localst.address_fixup:=localsref.offset else current_procinfo.procdef.localst.address_fixup:=localsref.offset+current_procinfo.procdef.localst.datasize; {$ifdef extdebug} Comment(V_debug,'inlined local symtable ('+tostr(current_procinfo.procdef.localst.datasize)+' bytes) is at offset '+tostr(current_procinfo.procdef.localst.address_fixup)); exprasmList.concat(tai_comment.Create(strpnew( 'inlined local symtable ('+tostr(current_procinfo.procdef.localst.datasize)+' bytes) is at offset '+tostr(current_procinfo.procdef.localst.address_fixup)))); {$endif extdebug} end; { Parasymtable } current_procinfo.procdef.parast.symtablelevel:=oldprocdef.localst.symtablelevel; if current_procinfo.procdef.parast.datasize>0 then begin old_para_fixup:=current_procinfo.procdef.parast.address_fixup; tg.GetTemp(exprasmlist,current_procinfo.procdef.parast.datasize,tt_persistent,pararef); current_procinfo.procdef.parast.address_fixup:=pararef.offset; {$ifdef extdebug} Comment(V_debug,'inlined para symtable ('+tostr(current_procinfo.procdef.parast.datasize)+' bytes) is at offset '+tostr(current_procinfo.procdef.parast.address_fixup)); exprasmList.concat(tai_comment.Create(strpnew( 'inlined para symtable ('+tostr(current_procinfo.procdef.parast.datasize)+' bytes) is at offset '+tostr(current_procinfo.procdef.parast.address_fixup)))); {$endif extdebug} end; exprasmList.concat(Tai_Marker.Create(InlineStart)); {$ifdef extdebug} exprasmList.concat(tai_comment.Create(strpnew('Start of inlined proc'))); {$endif extdebug} {$ifdef GDB} if (cs_debuginfo in aktmoduleswitches) then begin objectlibrary.getaddrlabel(startlabel); objectlibrary.getaddrlabel(endlabel); cg.a_label(exprasmlist,startlabel); tprocdef(procdefinition).localst.symtabletype:=inlinelocalsymtable; procdefinition.parast.symtabletype:=inlineparasymtable; { Here we must include the para and local symtable info } procdefinition.concatstabto(withdebuglist); { set it back for safety } tprocdef(procdefinition).localst.symtabletype:=localsymtable; procdefinition.parast.symtabletype:=parasymtable; mangled_length:=length(oldprocdef.mangledname); getmem(pp,mangled_length+50); strpcopy(pp,'192,0,0,'+startlabel.name); if (target_info.use_function_relative_addresses) then begin strpcopy(strend(pp),'-'); strpcopy(strend(pp),oldprocdef.mangledname); end; withdebugList.concat(Tai_stabn.Create(strnew(pp))); end; {$endif GDB} iolabel:=nil; rg.saveunusedstate(unusedstate); { if we allocate the temp. location for ansi- or widestrings } { already here, we avoid later a push/pop } if is_widestring(resulttype.def) then begin tg.GetTemp(exprasmlist,pointer_size,tt_widestring,refcountedtemp); cg.g_decrrefcount(exprasmlist,resulttype.def,refcountedtemp,false); end else if is_ansistring(resulttype.def) then begin tg.GetTemp(exprasmlist,pointer_size,tt_ansistring,refcountedtemp); cg.g_decrrefcount(exprasmlist,resulttype.def,refcountedtemp,false); end; if (cs_check_io in aktlocalswitches) and (po_iocheck in procdefinition.procoptions) and not(po_iocheck in current_procinfo.procdef.procoptions) then begin objectlibrary.getaddrlabel(iolabel); cg.a_label(exprasmlist,iolabel); end else iolabel:=nil; { save all used registers and possible registers used for the return value } regs_to_push_int := tprocdef(procdefinition).usedintregisters; regs_to_push_other := tprocdef(procdefinition).usedotherregisters; if (not is_void(resulttype.def)) then begin case procdefinition.funcret_paraloc[callerside].loc of LOC_REGISTER,LOC_CREGISTER: begin {$ifndef cpu64bit} if procdefinition.funcret_paraloc[callerside].size in [OS_S64,OS_64] then begin include(regs_to_push_int,getsupreg(procdefinition.funcret_paraloc[callerside].registerlow)); include(regs_to_push_int,getsupreg(procdefinition.funcret_paraloc[callerside].registerhigh)); end else {$endif cpu64bit} include(regs_to_push_int,getsupreg(procdefinition.funcret_paraloc[callerside].register)); end; end; end; rg.saveusedotherregisters(exprasmlist,pushedother,regs_to_push_other); {$ifdef i386} { give used registers through } rg.used_in_proc_int:=rg.used_in_proc_int + tprocdef(procdefinition).usedintregisters; rg.used_in_proc_other:=rg.used_in_proc_other + tprocdef(procdefinition).usedotherregisters; {$endif i386} { Initialize for pushing the parameters } oldpushedparasize:=pushedparasize; pushedparasize:=0; { Push parameters } oldaktcallnode:=aktcallnode; aktcallnode:=self; if assigned(left) then begin { we push from right to left, so start with parameters at the end of the parameter block } tcallparanode(left).secondcallparan( (po_leftright in procdefinition.procoptions),procdefinition.proccalloption, 0,procdefinition.parast.address_fixup+procdefinition.parast.datasize); end; aktcallnode:=oldaktcallnode; rg.saveotherregvars(exprasmlist,regs_to_push_other); { takes care of local data initialization } inlineentrycode:=TAAsmoutput.Create; inlineexitcode:=TAAsmoutput.Create; gen_initialize_code(inlineentrycode,true); if po_assembler in current_procinfo.procdef.procoptions then inlineentrycode.insert(Tai_marker.Create(asmblockstart)); exprasmList.concatlist(inlineentrycode); { process the inline code } secondpass(inlinecode); { Reserve space for storing parameters that will be pushed } current_procinfo.allocate_push_parasize(pushedparasize); { Restore } pushedparasize:=oldpushedparasize; rg.restoreunusedstate(unusedstate); {$ifdef TEMPREGDEBUG} testregisters32; {$endif TEMPREGDEBUG} gen_finalize_code(inlineexitcode,true); gen_load_return_value(inlineexitcode,usesacc,usesacchi,usesfpu); if po_assembler in current_procinfo.procdef.procoptions then inlineexitcode.concat(Tai_marker.Create(asmblockend)); exprasmList.concatlist(inlineexitcode); inlineentrycode.free; inlineexitcode.free; {$ifdef extdebug} exprasmList.concat(tai_comment.Create(strpnew('End of inlined proc'))); {$endif extdebug} exprasmList.concat(Tai_Marker.Create(InlineEnd)); {we can free the local data now, reset also the fixup address } if current_procinfo.procdef.localst.datasize>0 then begin tg.UnGetTemp(exprasmlist,localsref); current_procinfo.procdef.localst.address_fixup:=old_local_fixup; end; {we can free the para data now, reset also the fixup address } if current_procinfo.procdef.parast.datasize>0 then begin tg.UnGetTemp(exprasmlist,pararef); current_procinfo.procdef.parast.address_fixup:=old_para_fixup; end; { free return reference } if (resulttype.def.size>0) then begin { from now on the result can be freed normally } // if assigned(funcretnode) and // paramanager.ret_in_param(resulttype.def,procdefinition.proccalloption) then // tg.ChangeTempType(exprasmlist,funcretnode.location.reference,tt_normal); end; { handle function results } if (not is_void(resulttype.def)) then handle_return_value else location_reset(location,LOC_VOID,OS_NO); { perhaps i/o check ? } if iolabel<>nil then begin //reference_reset_symbol(href,iolabel,0); //cg.a_paramaddr_ref(exprasmlist,href,paramanager.getintparaloc(exprasmlist,1)); //paramanager.freeintparaloc(exprasmlist,1); rg.allocexplicitregistersint(exprasmlist,VOLATILE_INTREGISTERS); cg.a_call_name(exprasmlist,'FPC_IOCHECK'); rg.deallocexplicitregistersint(exprasmlist,VOLATILE_INTREGISTERS); end; { restore registers } rg.restoreusedotherregisters(exprasmlist,pushedother); { release temps of paras } release_para_temps; { if return value is not used } if (not is_void(resulttype.def)) and (not(nf_return_value_used in flags)) then begin if location.loc in [LOC_CREFERENCE,LOC_REFERENCE] then begin { data which must be finalized ? } if (resulttype.def.needs_inittable) then cg.g_finalize(exprasmlist,resulttype.def,location.reference,false); { release unused temp } tg.ungetiftemp(exprasmlist,location.reference) end else if location.loc=LOC_FPUREGISTER then begin {$ifdef x86} { release FPU stack } emit_reg(A_FSTP,S_NO,NR_FPU_RESULT_REG); { dec(trgcpu(rg).fpuvaroffset); do NOT decrement as the increment before is not called for unused results PM } {$endif x86} end; end; { release procinfo } current_procinfo.free; current_procinfo:=oldprocinfo; {$ifdef GDB} if (cs_debuginfo in aktmoduleswitches) then begin cg.a_label(exprasmlist,endlabel); strpcopy(pp,'224,0,0,'+endlabel.name); if (target_info.use_function_relative_addresses) then begin strpcopy(strend(pp),'-'); strpcopy(strend(pp),oldprocdef.mangledname); end; withdebugList.concat(Tai_stabn.Create(strnew(pp))); freemem(pp,mangled_length+50); end; {$endif GDB} { restore } current_procinfo.procdef:=oldprocdef; inlining_procedure:=oldinlining_procedure; { reallocate the registers used for the current procedure's regvars, } { since they may have been used and then deallocated in the inlined } { procedure (JM) } if assigned(current_procinfo.procdef.regvarinfo) then rg.restoreStateAfterInline(oldregstate); end; procedure tcgcallnode.pass_2; begin if assigned(inlinecode) then inlined_pass_2 else normal_pass_2; end; begin ccallparanode:=tcgcallparanode; ccallnode:=tcgcallnode; end. { $Log$ Revision 1.110 2003-09-04 15:39:58 peter * released useparatemp Revision 1.109 2003/09/03 15:55:00 peter * NEWRA branch merged Revision 1.108.2.4 2003/09/01 21:02:55 peter * sparc updates for new tregister Revision 1.108.2.3 2003/08/31 21:07:44 daniel * callparatemp ripped Revision 1.108.2.2 2003/08/29 17:28:59 peter * next batch of updates Revision 1.108.2.1 2003/08/27 20:23:55 peter * remove old ra code Revision 1.108 2003/08/21 22:14:16 olle - removed parameter from fpc_iocheck Revision 1.107 2003/08/17 16:59:20 jonas * fixed regvars so they work with newra (at least for ppc) * fixed some volatile register bugs + -dnotranslation option for -dnewra, which causes the registers not to be translated from virtual to normal registers. Requires support in the assembler writer as well, which is only implemented in aggas/ agppcgas currently Revision 1.106 2003/08/16 18:56:40 marco * fix from Jonas. Revision 1.105 2003/08/11 21:18:20 peter * start of sparc support for newra Revision 1.104 2003/08/11 14:22:06 mazen - dupplicated code removed Revision 1.103 2003/07/23 11:01:14 jonas * several rg.allocexplicitregistersint/rg.deallocexplicitregistersint pairs round calls to helpers Revision 1.102 2003/07/21 13:51:50 jonas * fixed 64bit int results with -dnewra (you can't free both registers and then allocate two new ones, because then the registers could be reversed afterwards -> you get something like "movl %eax, %edx; movl %edx,%eax") Revision 1.101 2003/07/08 21:24:59 peter * sparc fixes Revision 1.100 2003/07/06 21:50:33 jonas * fixed ppc compilation problems and changed VOLATILE_REGISTERS for x86 so that it doesn't include ebp and esp anymore Revision 1.99 2003/07/06 17:58:22 peter * framepointer fixes for sparc * parent framepointer code more generic Revision 1.98 2003/07/06 15:31:20 daniel * Fixed register allocator. *Lots* of fixes. Revision 1.97 2003/07/05 20:21:26 jonas * create_paraloc_info() is now called separately for the caller and callee info * fixed ppc cycle Revision 1.96 2003/07/02 22:18:04 peter * paraloc splitted in paraloc[callerside],calleeparaloc * sparc calling convention updates Revision 1.95 2003/06/17 16:34:44 jonas * lots of newra fixes (need getfuncretparaloc implementation for i386)! * renamed all_intregisters to volatile_intregisters and made it processor dependent Revision 1.94 2003/06/15 16:52:02 jonas * release function result registers if the functino result isn't used * don't allocate function result register with -dnewra if there is none * some optimizations for non-x86 processor (don't save any registers before a call) Revision 1.93 2003/06/13 21:19:30 peter * current_procdef removed, use current_procinfo.procdef instead Revision 1.92 2003/06/12 21:10:50 peter * newra fixes Revision 1.91 2003/06/12 18:38:45 jonas * deallocate parameter registers in time for newra * for non-i386, procvars and methodpointers always have to be processed in advance, whether or not newra is defined Revision 1.90 2003/06/09 14:54:26 jonas * (de)allocation of registers for parameters is now performed properly (and checked on the ppc) - removed obsolete allocation of all parameter registers at the start of a procedure (and deallocation at the end) Revision 1.89 2003/06/09 12:23:29 peter * init/final of procedure data splitted from genentrycode * use asmnode getposition to insert final at the correct position als for the implicit try...finally Revision 1.88 2003/06/08 20:01:53 jonas * optimized assignments with on the right side a function that returns an ansi- or widestring Revision 1.87 2003/06/08 18:21:47 jonas * fixed weird error in the copyleft statement :) Revision 1.86 2003/06/07 18:57:04 jonas + added freeintparaloc * ppc get/freeintparaloc now check whether the parameter regs are properly allocated/deallocated (and get an extra list para) * ppc a_call_* now internalerrors if pi_do_call is not yet set * fixed lot of missing pi_do_call's Revision 1.85 2003/06/04 06:43:36 jonas * fixed double secondpassing of procvar loads Revision 1.84 2003/06/03 21:11:09 peter * cg.a_load_* get a from and to size specifier * makeregsize only accepts newregister * i386 uses generic tcgnotnode,tcgunaryminus Revision 1.83 2003/06/03 20:27:02 daniel * Restored original methodpointer code for non newra case Revision 1.82 2003/06/03 13:01:59 daniel * Register allocator finished Revision 1.81 2003/06/01 21:38:06 peter * getregisterfpu size parameter added * op_const_reg size parameter added * sparc updates Revision 1.80 2003/05/31 15:05:28 peter * FUNCTION_RESULT64_LOW/HIGH_REG added for int64 results Revision 1.79 2003/05/31 00:59:44 peter * typo in FUNCTION_RESULT_REG Revision 1.78 2003/05/30 23:57:08 peter * more sparc cleanup * accumulator removed, splitted in function_return_reg (called) and function_result_reg (caller) Revision 1.77 2003/05/29 10:05:40 jonas * free callparatemps created for call-by-reference parameters Revision 1.76 2003/05/28 23:58:18 jonas * added missing initialization of rg.usedintin,byproc * ppc now also saves/restores used fpu registers * ncgcal doesn't add used registers to usedby/inproc anymore, except for i386 Revision 1.75 2003/05/26 21:17:17 peter * procinlinenode removed * aktexit2label removed, fast exit removed + tcallnode.inlined_pass_2 added Revision 1.74 2003/05/25 11:34:17 peter * methodpointer self pushing fixed Revision 1.73 2003/05/25 08:59:16 peter * inline fixes Revision 1.72 2003/05/24 13:36:54 jonas * save fpu results in a normal fpu register on non-x86 processors Revision 1.71 2003/05/23 19:35:50 jonas - undid previous commit, it was wrong Revision 1.70 2003/05/23 19:11:58 jonas * fixed tests for whether a certain int register is unused Revision 1.69 2003/05/23 18:01:56 jonas * fixed ppc compiler Revision 1.68 2003/05/23 14:27:35 peter * remove some unit dependencies * current_procinfo changes to store more info Revision 1.67 2003/05/17 13:30:08 jonas * changed tt_persistant to tt_persistent :) * tempcreatenode now doesn't accept a boolean anymore for persistent temps, but a ttemptype, so you can also create ansistring temps etc Revision 1.66 2003/05/16 14:33:31 peter * regvar fixes Revision 1.65 2003/05/15 18:58:53 peter * removed selfpointer_offset, vmtpointer_offset * tvarsym.adjusted_address * address in localsymtable is now in the real direction * removed some obsolete globals Revision 1.64 2003/05/14 19:36:54 jonas * patch from Peter for int64 function results Revision 1.63 2003/05/13 19:14:41 peter * failn removed * inherited result code check moven to pexpr Revision 1.62 2003/05/13 15:18:18 peter * generate code for procvar first before pushing parameters. Made the already existing code for powerpc available for all platforms Revision 1.61 2003/05/12 18:17:55 jonas * moved fpc_check_object call earlier for the ppc, so it can't destroy already-loaded parameter registers Revision 1.60 2003/05/11 21:48:38 jonas * fixed procvar bug on the ppc (load procvar before loading para's, because the procvar may otherwise destroy the already loaded paras) Revision 1.59 2003/05/09 17:47:02 peter * self moved to hidden parameter * removed hdisposen,hnewn,selfn Revision 1.58 2003/05/05 14:53:16 peter * vs_hidden replaced by is_hidden boolean Revision 1.57 2003/04/30 20:53:32 florian * error when address of an abstract method is taken * fixed some x86-64 problems * merged some more x86-64 and i386 code Revision 1.56 2003/04/29 07:28:52 michael + Patch from peter to fix wrong pushing of ansistring function results in open array Revision 1.55 2003/04/27 11:21:33 peter * aktprocdef renamed to current_procinfo.procdef * procinfo renamed to current_procinfo * procinfo will now be stored in current_module so it can be cleaned up properly * gen_main_procsym changed to create_main_proc and release_main_proc to also generate a tprocinfo structure * fixed unit implicit initfinal Revision 1.54 2003/04/27 07:29:50 peter * current_procinfo.procdef cleanup, current_procinfo.procdef is now always nil when parsing a new procdef declaration * aktprocsym removed * lexlevel removed, use symtable.symtablelevel instead * implicit init/final code uses the normal genentry/genexit * funcret state checking updated for new funcret handling Revision 1.53 2003/04/25 20:59:33 peter * removed funcretn,funcretsym, function result is now in varsym and aliases for result and function name are added using absolutesym * vs_hidden parameter for funcret passed in parameter * vs_hidden fixes * writenode changed to printnode and released from extdebug * -vp option added to generate a tree.log with the nodetree * nicer printnode for statements, callnode Revision 1.52 2003/04/25 08:25:26 daniel * Ifdefs around a lot of calls to cleartempgen * Fixed registers that are allocated but not freed in several nodes * Tweak to register allocator to cause less spills * 8-bit registers now interfere with esi,edi and ebp Compiler can now compile rtl successfully when using new register allocator Revision 1.51 2003/04/22 23:50:22 peter * firstpass uses expectloc * checks if there are differences between the expectloc and location.loc from secondpass in EXTDEBUG Revision 1.50 2003/04/22 14:33:38 peter * removed some notes/hints Revision 1.49 2003/04/22 13:47:08 peter * fixed C style array of const * fixed C array passing * fixed left to right with high parameters Revision 1.48 2003/04/22 10:09:34 daniel + Implemented the actual register allocator + Scratch registers unavailable when new register allocator used + maybe_save/maybe_restore unavailable when new register allocator used Revision 1.47 2003/04/22 09:49:44 peter * do not load self when calling a non-inherited class constructor Revision 1.46 2003/04/21 20:03:32 peter * forgot to copy vmtrefaddr to selfrefaddr when self=vmt Revision 1.45 2003/04/21 13:53:16 jonas - removed copying of all paras when secondpassing a callnode (this used to be necessary for inlinign support, but currently the whole inlined procedure is already copied in advance). Note that the compiler crashes when compiling ucomplex with -dTEST_INLINE (also after fixing the syntax errors), but that was also the case before this change. Revision 1.44 2003/04/10 17:57:52 peter * vs_hidden released Revision 1.43 2003/04/06 21:11:23 olle * changed newasmsymbol to newasmsymboldata for data symbols Revision 1.42 2003/04/04 15:38:56 peter * moved generic code from n386cal to ncgcal, i386 now also uses the generic ncgcal Revision 1.41 2003/03/28 19:16:56 peter * generic constructor working for i386 * remove fixed self register * esi added as address register for i386 Revision 1.40 2003/03/06 11:35:50 daniel * Fixed internalerror 7843 issue Revision 1.39 2003/02/19 22:00:14 daniel * Code generator converted to new register notation - Horribily outdated todo.txt removed Revision 1.38 2003/02/15 22:17:38 carl * bugfix of FPU emulation code Revision 1.37 2003/02/12 22:10:07 carl * load_frame_pointer is now generic * change fpu emulation routine names Revision 1.36 2003/01/30 21:46:57 peter * self fixes for static methods (merged) Revision 1.35 2003/01/22 20:45:15 mazen * making math code in RTL compiling. *NB : This does NOT mean necessary that it will generate correct code! Revision 1.34 2003/01/17 12:03:45 daniel * Optalign conditional code adapted to record Tregister Revision 1.33 2003/01/08 18:43:56 daniel * Tregister changed into a record Revision 1.32 2002/12/15 22:50:00 florian + some stuff for the new hidden parameter handling added Revision 1.31 2002/12/15 21:30:12 florian * tcallnode.paraitem introduced, all references to defcoll removed Revision 1.30 2002/11/27 20:04:39 peter * cdecl array of const fixes Revision 1.29 2002/11/25 17:43:17 peter * splitted defbase in defutil,symutil,defcmp * merged isconvertable and is_equal into compare_defs(_ext) * made operator search faster by walking the list only once Revision 1.28 2002/11/18 17:31:54 peter * pass proccalloption to ret_in_xxx and push_xxx functions Revision 1.27 2002/11/16 15:34:30 florian * generic location for float results Revision 1.26 2002/11/15 01:58:51 peter * merged changes from 1.0.7 up to 04-11 - -V option for generating bug report tracing - more tracing for option parsing - errors for cdecl and high() - win32 import stabs - win32 records<=8 are returned in eax:edx (turned off by default) - heaptrc update - more info for temp management in .s file with EXTDEBUG Revision 1.25 2002/10/05 12:43:25 carl * fixes for Delphi 6 compilation (warning : Some features do not work under Delphi) Revision 1.24 2002/09/30 07:00:45 florian * fixes to common code to get the alpha compiler compiled applied Revision 1.23 2002/09/17 18:54:02 jonas * a_load_reg_reg() now has two size parameters: source and dest. This allows some optimizations on architectures that don't encode the register size in the register name. Revision 1.22 2002/09/07 15:25:02 peter * old logs removed and tabs fixed Revision 1.21 2002/09/07 11:50:02 jonas * fixed small regalloction info bug Revision 1.20 2002/09/02 11:25:20 florian * fixed generic procedure variable calling Revision 1.19 2002/09/01 21:04:48 florian * several powerpc related stuff fixed Revision 1.18 2002/09/01 18:43:27 peter * include FUNCTION_RETURN_REG in regs_to_push list Revision 1.17 2002/09/01 12:13:00 peter * use a_call_reg * ungetiftemp for procvar of object temp Revision 1.16 2002/08/25 19:25:18 peter * sym.insert_in_data removed * symtable.insertvardata/insertconstdata added * removed insert_in_data call from symtable.insert, it needs to be called separatly. This allows to deref the address calculation * procedures now calculate the parast addresses after the procedure directives are parsed. This fixes the cdecl parast problem * push_addr_param has an extra argument that specifies if cdecl is used or not Revision 1.15 2002/08/23 16:14:48 peter * tempgen cleanup * tt_noreuse temp type added that will be used in genentrycode Revision 1.14 2002/08/20 16:55:38 peter * don't write (stabs)line info when inlining a procedure Revision 1.13 2002/08/19 19:36:42 peter * More fixes for cross unit inlining, all tnodes are now implemented * Moved pocall_internconst to po_internconst because it is not a calling type at all and it conflicted when inlining of these small functions was requested Revision 1.12 2002/08/18 20:06:23 peter * inlining is now also allowed in interface * renamed write/load to ppuwrite/ppuload * tnode storing in ppu * nld,ncon,nbas are already updated for storing in ppu Revision 1.11 2002/08/17 22:09:44 florian * result type handling in tcgcal.pass_2 overhauled * better tnode.dowrite * some ppc stuff fixed Revision 1.10 2002/08/17 09:23:35 florian * first part of procinfo rewrite Revision 1.9 2002/08/13 21:40:55 florian * more fixes for ppc calling conventions Revision 1.8 2002/08/13 18:01:51 carl * rename swatoperands to swapoperands + m68k first compilable version (still needs a lot of testing): assembler generator, system information , inline assembler reader. Revision 1.7 2002/08/12 15:08:39 carl + stab register indexes for powerpc (moved from gdb to cpubase) + tprocessor enumeration moved to cpuinfo + linker in target_info is now a class * many many updates for m68k (will soon start to compile) - removed some ifdef or correct them for correct cpu Revision 1.6 2002/08/11 14:32:26 peter * renamed current_library to objectlibrary Revision 1.5 2002/08/11 13:24:11 peter * saving of asmsymbols in ppu supported * asmsymbollist global is removed and moved into a new class tasmlibrarydata that will hold the info of a .a file which corresponds with a single module. Added librarydata to tmodule to keep the library info stored for the module. In the future the objectfiles will also be stored to the tasmlibrarydata class * all getlabel/newasmsymbol and friends are moved to the new class Revision 1.4 2002/08/06 20:55:20 florian * first part of ppc calling conventions fix Revision 1.3 2002/07/20 11:57:53 florian * types.pas renamed to defbase.pas because D6 contains a types unit so this would conflicts if D6 programms are compiled + Willamette/SSE2 instructions to assembler added Revision 1.2 2002/07/13 19:38:43 florian * some more generic calling stuff fixed }