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80c6225bf4
fpu: treat them as extended when they are loaded into registers, and as
int64 when loading from/storing to memory
git-svn-id: branches/hlcgllvm@26048 -
85 lines
2.8 KiB
ObjectPascal
85 lines
2.8 KiB
ObjectPascal
{
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Copyright (c) 2013 by Jonas Maebe, member of the Free Pascal Compiler
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development team
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Generate llvm bitcode for constants
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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 nllvmcon;
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{$i fpcdefs.inc}
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interface
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uses
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node,ncgcon;
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type
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tllvmrealconstnode = class(tcgrealconstnode)
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function pass_1 : tnode;override;
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procedure pass_generate_code;override;
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end;
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implementation
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uses
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globtype,verbose,
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symdef,defutil,
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aasmdata,
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ncon,
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llvmbase,aasmllvm,hlcgobj,
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cgbase,cgutils;
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{*****************************************************************************
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tllvmrealconstnode
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*****************************************************************************}
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function tllvmrealconstnode.pass_1 : tnode;
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begin
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result:=nil;
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expectloc:=LOC_FPUREGISTER;
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end;
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procedure tllvmrealconstnode.pass_generate_code;
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begin
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{ llvm supports floating point constants directly }
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location_reset(location,LOC_FPUREGISTER,def_cgsize(resultdef));
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location.register:=hlcg.getfpuregister(current_asmdata.CurrAsmList,resultdef);
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case tfloatdef(resultdef).floattype of
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s32real,s64real:
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current_asmdata.CurrAsmList.concat(taillvm.op_reg_size_fpconst_size(la_bitcast,location.register,resultdef,value_real,resultdef));
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{ comp and currency are handled as int64 at the llvm level }
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s64comp,
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s64currency:
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{ sc80floattype instead of resultdef, see comment in thlcgllvm.a_loadfpu_ref_reg }
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current_asmdata.CurrAsmList.concat(taillvm.op_reg_size_const_size(la_sitofp,location.register,s64inttype,trunc(value_real),sc80floattype));
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{$ifdef cpuextended}
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s80real,sc80real:
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current_asmdata.CurrAsmList.concat(taillvm.op_reg_size_fpconst80_size(la_bitcast,location.register,resultdef,value_real,resultdef));
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{$endif cpuextended}
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else
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internalerror(2013102501);
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end;
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end;
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begin
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crealconstnode:=tllvmrealconstnode;
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end.
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