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+ copying of open array value parameters to the heap implemented
This commit is contained in:
florian
parent
73a0939a2b
commit
f72431af31
@ -42,7 +42,6 @@ unit cgcpu;
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procedure done_register_allocators;override;
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function getintregister(list:Taasmoutput;size:Tcgsize):Tregister;override;
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function getaddressregister(list:Taasmoutput):Tregister;
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function getfpuregister(list:Taasmoutput;size:Tcgsize):Tregister;override;
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function getmmregister(list:Taasmoutput;size:Tcgsize):Tregister;override;
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procedure getexplicitregister(list:Taasmoutput;r:Tregister);override;
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@ -95,7 +94,9 @@ unit cgcpu;
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procedure g_flags2reg(list: taasmoutput; size: TCgSize; const f: TResFlags; reg: TRegister); override;
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procedure g_copyvaluepara_openarray(list : taasmoutput;const ref, lenref:treference;elesize:integer);override;
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procedure g_copyvaluepara_openarray(list : taasmoutput;const ref, lenref:treference;elesize:aword);override;
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procedure g_releasevaluepara_openarray(list : taasmoutput;const ref:treference);override;
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procedure g_stackframe_entry(list : taasmoutput;localsize : longint);override;
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procedure g_return_from_proc(list : taasmoutput;parasize : aword); override;
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procedure g_restore_frame_pointer(list : taasmoutput);override;
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@ -173,7 +174,7 @@ const
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uses
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globtype,globals,verbose,systems,cutils,
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symconst,symdef,symsym,
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rgobj,tgobj,cpupi,procinfo;
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rgobj,tgobj,cpupi,procinfo,paramgr;
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procedure tcgppc.init_register_allocators;
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@ -207,12 +208,6 @@ const
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end;
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function tcgppc.getaddressregister(list:Taasmoutput):Tregister;
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begin
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result:=rgint.getregister(list,R_SUBWHOLE);
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end;
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function tcgppc.getfpuregister(list:Taasmoutput;size:Tcgsize):Tregister;
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begin
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result:=rgfpu.getregister(list,R_SUBWHOLE);
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@ -1992,131 +1987,80 @@ const
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tg.ungetiftemp(list,source);
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end;
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procedure tcgppc.g_copyvaluepara_openarray(list : taasmoutput;const ref, lenref:treference;elesize:integer);
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procedure tcgppc.g_copyvaluepara_openarray(list : taasmoutput;const ref, lenref:treference;elesize:aword);
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var
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power,len : longint;
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{$ifndef __NOWINPECOFF__}
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again,ok : tasmlabel;
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{$endif}
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// r,r2,rsp:Tregister;
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sizereg,sourcereg : tregister;
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paraloc1,paraloc2,paraloc3 : tparalocation;
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begin
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{$warning !!!! FIX ME !!!!}
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internalerror(200305231);
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(* !!!!
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lenref:=ref;
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inc(lenref.offset,4);
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{ get stack space }
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r.enum:=R_INTREGISTER;
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r.number:=NR_EDI;
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rsp.enum:=R_INTREGISTER;
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rsp.number:=NR_ESP;
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r2.enum:=R_INTREGISTER;
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rg.getexplicitregisterint(list,NR_EDI);
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list.concat(Taicpu.op_ref_reg(A_MOV,S_L,lenref,r));
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list.concat(Taicpu.op_reg(A_INC,S_L,r));
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if (elesize<>1) then
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begin
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if ispowerof2(elesize, power) then
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list.concat(Taicpu.op_const_reg(A_SHL,S_L,power,r))
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else
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list.concat(Taicpu.op_const_reg(A_IMUL,S_L,elesize,r));
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end;
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{$ifndef __NOWINPECOFF__}
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{ windows guards only a few pages for stack growing, }
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{ so we have to access every page first }
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if target_info.system=system_i386_win32 then
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begin
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objectlibrary.getlabel(again);
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objectlibrary.getlabel(ok);
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a_label(list,again);
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list.concat(Taicpu.op_const_reg(A_CMP,S_L,winstackpagesize,r));
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a_jmp_cond(list,OC_B,ok);
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list.concat(Taicpu.op_const_reg(A_SUB,S_L,winstackpagesize-4,rsp));
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r2.number:=NR_EAX;
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list.concat(Taicpu.op_reg(A_PUSH,S_L,r));
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list.concat(Taicpu.op_const_reg(A_SUB,S_L,winstackpagesize,r));
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a_jmp_always(list,again);
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a_label(list,ok);
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list.concat(Taicpu.op_reg_reg(A_SUB,S_L,r,rsp));
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rgint.ungetregister(list,r);
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{ now reload EDI }
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rg.getexplicitregisterint(list,NR_EDI);
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list.concat(Taicpu.op_ref_reg(A_MOV,S_L,lenref,r));
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list.concat(Taicpu.op_reg(A_INC,S_L,r));
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if (elesize<>1) then
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begin
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if ispowerof2(elesize, power) then
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list.concat(Taicpu.op_const_reg(A_SHL,S_L,power,r))
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else
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list.concat(Taicpu.op_const_reg(A_IMUL,S_L,elesize,r));
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end;
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end
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else
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{$endif __NOWINPECOFF__}
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list.concat(Taicpu.op_reg_reg(A_SUB,S_L,r,rsp));
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{ align stack on 4 bytes }
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list.concat(Taicpu.op_const_reg(A_AND,S_L,$fffffff4,rsp));
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{ load destination }
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a_load_reg_reg(list,OS_INT,OS_INT,rsp,r);
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{ don't destroy the registers! }
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r2.number:=NR_ECX;
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list.concat(Taicpu.op_reg(A_PUSH,S_L,r2));
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r2.number:=NR_ESI;
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list.concat(Taicpu.op_reg(A_PUSH,S_L,r2));
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{ load count }
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r2.number:=NR_ECX;
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a_load_ref_reg(list,OS_INT,lenref,r2);
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{ because ppc abi doesn't support dynamic stack allocation properly
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open array value parameters are copied onto the heap
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}
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{ allocate two registers for len and source }
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sizereg:=getintregister(list,OS_INT);
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sourcereg:=getintregister(list,OS_INT);
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{ calculate necessary memory }
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a_load_ref_reg(list,OS_INT,OS_INT,lenref,sizereg);
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a_op_const_reg_reg(list,OP_MUL,OS_INT,elesize,sizereg,sizereg);
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{ load source }
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r2.number:=NR_ESI;
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a_load_ref_reg(list,OS_INT,ref,r2);
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a_load_ref_reg(list,OS_ADDR,OS_ADDR,ref,sourcereg);
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{ scheduled .... }
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r2.number:=NR_ECX;
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list.concat(Taicpu.op_reg(A_INC,S_L,r2));
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{ do getmem call }
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paraloc1:=paramanager.getintparaloc(pocall_default,1);
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paraloc2:=paramanager.getintparaloc(pocall_default,2);
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paramanager.allocparaloc(list,paraloc2);
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a_param_reg(list,OS_INT,sizereg,paraloc2);
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paramanager.allocparaloc(list,paraloc1);
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a_paramaddr_ref(list,ref,paraloc1);
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paramanager.freeparaloc(list,paraloc2);
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paramanager.freeparaloc(list,paraloc1);
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allocexplicitregisters(list,R_INTREGISTER,paramanager.get_volatile_registers_int(pocall_default));
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a_call_name(list,'FPC_GETMEM');
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deallocexplicitregisters(list,R_INTREGISTER,paramanager.get_volatile_registers_int(pocall_default));
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{ calculate size }
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len:=elesize;
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opsize:=S_B;
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if (len and 3)=0 then
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{ do move call }
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paraloc1:=paramanager.getintparaloc(pocall_default,1);
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paraloc2:=paramanager.getintparaloc(pocall_default,2);
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paraloc3:=paramanager.getintparaloc(pocall_default,3);
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{ load size }
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paramanager.allocparaloc(list,paraloc3);
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a_param_reg(list,OS_INT,sizereg,paraloc3);
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{ load destination }
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paramanager.allocparaloc(list,paraloc2);
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a_param_ref(list,OS_ADDR,ref,paraloc2);
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{ load source }
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paramanager.allocparaloc(list,paraloc1);
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a_param_reg(list,OS_ADDR,sourcereg,paraloc1);
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paramanager.freeparaloc(list,paraloc3);
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paramanager.freeparaloc(list,paraloc2);
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paramanager.freeparaloc(list,paraloc1);
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allocexplicitregisters(list,R_INTREGISTER,paramanager.get_volatile_registers_int(pocall_default));
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a_call_name(list,'FPC_MOVE');
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deallocexplicitregisters(list,R_INTREGISTER,paramanager.get_volatile_registers_int(pocall_default));
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{ release used registers }
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ungetregister(list,sizereg);
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ungetregister(list,sourcereg);
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end;
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procedure tcgppc.g_releasevaluepara_openarray(list : taasmoutput;const ref:treference);
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var
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paraloc : tparalocation;
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begin
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opsize:=S_L;
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len:=len shr 2;
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end
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else
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if (len and 1)=0 then
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begin
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opsize:=S_W;
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len:=len shr 1;
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{ do move call }
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paraloc:=paramanager.getintparaloc(pocall_default,1);
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{ load source }
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paramanager.allocparaloc(list,paraloc);
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a_param_ref(list,OS_ADDR,ref,paraloc);
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paramanager.freeparaloc(list,paraloc);
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allocexplicitregisters(list,R_INTREGISTER,paramanager.get_volatile_registers_int(pocall_default));
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a_call_name(list,'FPC_FREEMEM');
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deallocexplicitregisters(list,R_INTREGISTER,paramanager.get_volatile_registers_int(pocall_default));
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end;
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if ispowerof2(len, power) then
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list.concat(Taicpu.op_const_reg(A_SHL,S_L,power,r2))
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else
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list.concat(Taicpu.op_const_reg(A_IMUL,S_L,len,r2));
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list.concat(Taicpu.op_none(A_REP,S_NO));
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case opsize of
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S_B : list.concat(Taicpu.Op_none(A_MOVSB,S_NO));
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S_W : list.concat(Taicpu.Op_none(A_MOVSW,S_NO));
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S_L : list.concat(Taicpu.Op_none(A_MOVSD,S_NO));
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end;
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rgint.ungetregister(list,r);
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r2.number:=NR_ESI;
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list.concat(Taicpu.op_reg(A_POP,S_L,r2));
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r2.number:=NR_ECX;
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list.concat(Taicpu.op_reg(A_POP,S_L,r2));
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{ patch the new address }
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a_load_reg_ref(list,OS_INT,rsp,ref);
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!!!! *)
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end;
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procedure tcgppc.g_overflowcheck(list: taasmoutput; const l: tlocation; def: tdef);
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var
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hl : tasmlabel;
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begin
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@ -2499,7 +2443,10 @@ begin
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end.
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{
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$Log$
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Revision 1.135 2003-11-02 15:20:06 jonas
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Revision 1.136 2003-11-02 17:19:33 florian
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+ copying of open array value parameters to the heap implemented
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Revision 1.135 2003/11/02 15:20:06 jonas
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* fixed releasing of references (ppc also has a base and an index, not
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just a base)
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