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d6de2c03cb
o in particular, add tdef size information to the update_reference*()
methods, and factored out offset adjustments into its own method
o also make sure the passed size to update_reference*() corresponds to the
actual size of the index, as it's no longer guaranteed to be ptruint
since the previous commit
git-svn-id: trunk@29967 -
116 lines
4.4 KiB
ObjectPascal
116 lines
4.4 KiB
ObjectPascal
{
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Copyright (c) 2012 by Florian Klaempfl
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Generate arm assembler for in memory related nodes
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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unit narmmem;
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{$i fpcdefs.inc}
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interface
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uses
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globtype,
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symtype,
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cgbase,cpubase,nmem,ncgmem;
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type
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tarmloadparentfpnode = class(tcgloadparentfpnode)
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procedure pass_generate_code; override;
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end;
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tarmvecnode = class(tcgvecnode)
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procedure update_reference_reg_mul(maybe_const_reg: tregister; regsize: tdef; l: aint);override;
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end;
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implementation
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uses
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cutils,verbose,globals,aasmdata,aasmcpu,cgobj,cgcpu,
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cpuinfo,
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cgutils,
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procinfo;
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{*****************************************************************************
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TARMLOADPARENTFPNODE
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*****************************************************************************}
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procedure tarmloadparentfpnode.pass_generate_code;
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begin
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{ normally, we cannot use the stack pointer as normal register on arm thumb }
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if (GenerateThumbCode) and
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(getsupreg(current_procinfo.framepointer) in [RS_R8..RS_R15]) and
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(current_procinfo.procdef.parast.symtablelevel=parentpd.parast.symtablelevel) then
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begin
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location_reset(location,LOC_REGISTER,OS_ADDR);
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location.register:=cg.getaddressregister(current_asmdata.CurrAsmList);
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cg.a_load_reg_reg(current_asmdata.CurrAsmList,OS_ADDR,OS_ADDR,current_procinfo.framepointer,location.register);
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end
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else
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inherited pass_generate_code;
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end;
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{*****************************************************************************
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TARMVECNODE
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*****************************************************************************}
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procedure tarmvecnode.update_reference_reg_mul(maybe_const_reg: tregister; regsize: tdef; l: aint);
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var
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hreg: tregister;
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hl : longint;
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begin
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if ((location.reference.base=NR_NO) and (location.reference.index=NR_NO)) or
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(GenerateThumbCode) or
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{ simple constant? }
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(l=1) or ispowerof2(l,hl) or ispowerof2(l+1,hl) or ispowerof2(l-1,hl) then
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inherited update_reference_reg_mul(maybe_const_reg,regsize,l)
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else if (location.reference.base<>NR_NO) then
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begin
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hreg:=cg.getaddressregister(current_asmdata.CurrAsmList);
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cg.a_load_const_reg(current_asmdata.CurrAsmList,OS_ADDR,l,hreg);
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tbasecgarm(cg).safe_mla(current_asmdata.CurrAsmList,hreg,maybe_const_reg,hreg,location.reference.base);
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location.reference.base:=hreg;
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{ update alignment }
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if (location.reference.alignment=0) then
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internalerror(2012052202);
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location.reference.alignment:=newalignment(location.reference.alignment,l);
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end
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else if (location.reference.index<>NR_NO) then
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begin
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hreg:=cg.getaddressregister(current_asmdata.CurrAsmList);
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cg.a_load_const_reg(current_asmdata.CurrAsmList,OS_ADDR,l,hreg);
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tbasecgarm(cg).safe_mla(current_asmdata.CurrAsmList,hreg,maybe_const_reg,hreg,location.reference.index);
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location.reference.base:=hreg;
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location.reference.index:=NR_NO;
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{ update alignment }
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if (location.reference.alignment=0) then
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internalerror(2012052203);
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location.reference.alignment:=newalignment(location.reference.alignment,l);
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end
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else
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internalerror(2012052201);
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end;
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begin
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cvecnode:=tarmvecnode;
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cloadparentfpnode:=tarmloadparentfpnode;
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end.
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