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https://gitlab.com/freepascal.org/fpc/source.git
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638 lines
18 KiB
ObjectPascal
638 lines
18 KiB
ObjectPascal
{
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Copyright (c) 1999-2002 by Jonas Maebe and Thomas Schatzl
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Contains the assembler object for the Risc-V 32 and Risc-V 64
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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 aasmcpu;
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{$i fpcdefs.inc}
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interface
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uses
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globtype,verbose,
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aasmbase,aasmtai,aasmdata,aasmsym,
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cpubase,cgbase,cgutils;
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const
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{ "mov reg,reg" source operand number }
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O_MOV_SOURCE = 1;
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{ "mov reg,reg" source operand number }
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O_MOV_DEST = 0;
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type
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{ taicpu }
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taicpu = class(tai_cpu_abstract_sym)
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memoryordering: TMemoryOrdering;
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constructor op_none(op : tasmop);
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constructor op_reg(op : tasmop;_op1 : tregister);
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constructor op_const(op : tasmop;_op1 : aint);
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constructor op_ref(op : tasmop;_op1 : treference);
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constructor op_reg_reg(op : tasmop;_op1,_op2 : tregister);
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constructor op_reg_ref(op : tasmop;_op1 : tregister;const _op2 : treference);
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constructor op_reg_const(op:tasmop; _op1: tregister; _op2: aint);
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constructor op_const_reg(op:tasmop; _op1: aint; _op2: tregister);
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constructor op_const_const(op : tasmop;_op1,_op2 : aint);
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constructor op_reg_reg_const_const(op: tasmop; _op1, _op2: tregister; _op3, _op4: aint);
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constructor op_reg_reg_roundingmode(op : tasmop;_op1,_op2 : tregister; _op3: TRoundingMode);
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constructor op_reg_reg_reg(op : tasmop;_op1,_op2,_op3 : tregister);
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constructor op_reg_reg_const(op : tasmop;_op1,_op2 : tregister; _op3: aint);
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constructor op_reg_reg_sym_ofs(op : tasmop;_op1,_op2 : tregister; _op3: tasmsymbol;_op3ofs: aint);
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constructor op_reg_reg_ref(op : tasmop;_op1,_op2 : tregister; const _op3: treference);
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constructor op_const_reg_reg(op : tasmop;_op1 : aint;_op2, _op3 : tregister);
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constructor op_const_reg_const(op : tasmop;_op1 : aint;_op2 : tregister;_op3 : aint);
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constructor op_const_const_const(op : tasmop;_op1 : aint;_op2 : aint;_op3 : aint);
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constructor op_reg_reg_reg_reg(op : tasmop;_op1,_op2,_op3,_op4 : tregister);
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constructor op_reg_bool_reg_reg(op : tasmop;_op1: tregister;_op2:boolean;_op3,_op4:tregister);
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constructor op_reg_bool_reg_const(op : tasmop;_op1: tregister;_op2:boolean;_op3:tregister;_op4: aint);
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constructor op_reg_reg_reg_const(op : tasmop; _op1, _op2, _op3 : tregister; _op4 : aint);
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constructor op_reg_reg_reg_const_const(op : tasmop;_op1,_op2,_op3 : tregister;_op4,_op5 : aint);
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constructor op_reg_reg_const_const_const(op : tasmop;_op1,_op2 : tregister;_op3,_op4,_op5 : aint);
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{ this is for Jmp instructions }
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constructor op_cond_sym(op : tasmop;cond:TAsmCond;_op1 : tasmsymbol);
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constructor op_const_const_sym(op : tasmop;_op1,_op2 : aint;_op3: tasmsymbol);
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constructor op_sym(op : tasmop;_op1 : tasmsymbol);
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constructor op_sym_ofs(op : tasmop;_op1 : tasmsymbol;_op1ofs:aint);
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constructor op_reg_sym(op : tasmop;_op1 : tregister;_op2:tasmsymbol);
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constructor op_reg_sym_ofs(op : tasmop;_op1 : tregister;_op2:tasmsymbol;_op2ofs : aint);
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constructor op_sym_ofs_ref(op : tasmop;_op1 : tasmsymbol;_op1ofs:aint;const _op2 : treference);
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procedure loadroundingmode(opidx:aint;_roundmode:TRoundingMode);
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procedure loadfenceflags(opidx:aint;_flags:TFenceFlags);
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procedure loadbool(opidx:aint;_b:boolean);
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function is_same_reg_move(regtype: Tregistertype):boolean; override;
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{ register spilling code }
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function spilling_get_operation_type(opnr: longint): topertype;override;
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function spilling_get_operation_type_ref(opnr: longint; reg: tregister): topertype;override;
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end;
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tai_align = class(tai_align_abstract)
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{ nothing to add }
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end;
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procedure InitAsm;
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procedure DoneAsm;
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function spilling_create_load(const ref:treference;r:tregister):Taicpu;
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function spilling_create_store(r:tregister; const ref:treference):Taicpu;
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implementation
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uses cutils, cclasses;
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{*****************************************************************************
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taicpu Constructors
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*****************************************************************************}
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procedure taicpu.loadbool(opidx:aint;_b:boolean);
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begin
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if opidx>=ops then
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ops:=opidx+1;
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with oper[opidx]^ do
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begin
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if typ=top_ref then
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dispose(ref);
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b:=_b;
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typ:=top_bool;
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end;
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end;
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constructor taicpu.op_none(op : tasmop);
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begin
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inherited create(op);
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end;
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constructor taicpu.op_reg(op : tasmop;_op1 : tregister);
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begin
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inherited create(op);
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ops:=1;
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loadreg(0,_op1);
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end;
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constructor taicpu.op_ref(op : tasmop;_op1 : treference);
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begin
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inherited create(op);
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ops:=1;
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loadref(0,_op1);
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end;
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constructor taicpu.op_const(op : tasmop;_op1 : aint);
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begin
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inherited create(op);
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ops:=1;
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loadconst(0,_op1);
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end;
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constructor taicpu.op_reg_reg(op : tasmop;_op1,_op2 : tregister);
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begin
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inherited create(op);
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ops:=2;
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loadreg(0,_op1);
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loadreg(1,_op2);
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end;
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constructor taicpu.op_reg_const(op:tasmop; _op1: tregister; _op2: aint);
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begin
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inherited create(op);
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ops:=2;
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loadreg(0,_op1);
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loadconst(1,_op2);
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end;
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constructor taicpu.op_const_reg(op:tasmop; _op1: aint; _op2: tregister);
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begin
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inherited create(op);
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ops:=2;
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loadconst(0,_op1);
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loadreg(1,_op2);
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end;
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constructor taicpu.op_reg_ref(op : tasmop;_op1 : tregister;const _op2 : treference);
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begin
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inherited create(op);
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ops:=2;
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loadreg(0,_op1);
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loadref(1,_op2);
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end;
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constructor taicpu.op_const_const(op : tasmop;_op1,_op2 : aint);
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begin
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inherited create(op);
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ops:=2;
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loadconst(0,_op1);
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loadconst(1,_op2);
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end;
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constructor taicpu.op_reg_reg_const_const(op: tasmop; _op1, _op2: tregister; _op3, _op4: aint);
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begin
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inherited create(op);
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ops := 4;
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loadreg(0, _op1);
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loadreg(1, _op2);
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loadconst(2, _op3);
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loadconst(3, _op4);
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end;
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constructor taicpu.op_reg_reg_roundingmode(op: tasmop; _op1, _op2: tregister; _op3: TRoundingMode);
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begin
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inherited create(op);
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ops:=3;
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loadreg(0,_op1);
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loadreg(1,_op2);
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loadroundingmode(2,_op3);
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end;
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constructor taicpu.op_reg_reg_reg(op : tasmop;_op1,_op2,_op3 : tregister);
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begin
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inherited create(op);
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ops:=3;
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loadreg(0,_op1);
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loadreg(1,_op2);
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loadreg(2,_op3);
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end;
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constructor taicpu.op_reg_reg_const(op : tasmop;_op1,_op2 : tregister; _op3: aint);
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begin
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inherited create(op);
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ops:=3;
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loadreg(0,_op1);
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loadreg(1,_op2);
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loadconst(2,_op3);
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end;
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constructor taicpu.op_reg_reg_sym_ofs(op : tasmop;_op1,_op2 : tregister; _op3: tasmsymbol;_op3ofs: aint);
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begin
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inherited create(op);
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ops:=3;
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loadreg(0,_op1);
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loadreg(1,_op2);
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loadsymbol(2,_op3,_op3ofs);
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end;
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constructor taicpu.op_reg_reg_ref(op : tasmop;_op1,_op2 : tregister; const _op3: treference);
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begin
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inherited create(op);
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ops:=3;
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loadreg(0,_op1);
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loadreg(1,_op2);
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loadref(2,_op3);
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end;
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constructor taicpu.op_const_reg_reg(op : tasmop;_op1 : aint;_op2, _op3 : tregister);
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begin
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inherited create(op);
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ops:=3;
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loadconst(0,_op1);
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loadreg(1,_op2);
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loadreg(2,_op3);
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end;
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constructor taicpu.op_const_reg_const(op : tasmop;_op1 : aint;_op2 : tregister;_op3 : aint);
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begin
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inherited create(op);
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ops:=3;
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loadconst(0,_op1);
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loadreg(1,_op2);
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loadconst(2,_op3);
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end;
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constructor taicpu.op_const_const_const(op : tasmop;_op1 : aint;_op2 : aint;_op3 : aint);
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begin
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inherited create(op);
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ops:=3;
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loadconst(0,_op1);
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loadconst(1,_op2);
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loadconst(2,_op3);
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end;
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constructor taicpu.op_reg_reg_reg_reg(op : tasmop;_op1,_op2,_op3,_op4 : tregister);
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begin
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inherited create(op);
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ops:=4;
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loadreg(0,_op1);
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loadreg(1,_op2);
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loadreg(2,_op3);
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loadreg(3,_op4);
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end;
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constructor taicpu.op_reg_bool_reg_reg(op : tasmop;_op1: tregister;_op2:boolean;_op3,_op4:tregister);
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begin
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inherited create(op);
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ops:=4;
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loadreg(0,_op1);
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loadbool(1,_op2);
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loadreg(2,_op3);
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loadreg(3,_op4);
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end;
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constructor taicpu.op_reg_bool_reg_const(op : tasmop;_op1: tregister;_op2:boolean;_op3:tregister;_op4: aint);
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begin
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inherited create(op);
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ops:=4;
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loadreg(0,_op1);
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loadbool(0,_op2);
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loadreg(0,_op3);
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loadconst(0,cardinal(_op4));
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end;
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constructor taicpu.op_reg_reg_reg_const(op : tasmop; _op1, _op2, _op3 : tregister; _op4 : aint);
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begin
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inherited create(op);
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ops := 4;
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loadreg(0, _op1);
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loadreg(1, _op2);
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loadreg(2, _op3);
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loadconst(3, cardinal(_op4));
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end;
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constructor taicpu.op_reg_reg_reg_const_const(op : tasmop;_op1,_op2,_op3 : tregister;_op4,_op5 : aint);
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begin
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inherited create(op);
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ops:=5;
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loadreg(0,_op1);
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loadreg(1,_op2);
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loadreg(2,_op3);
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loadconst(3,cardinal(_op4));
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loadconst(4,cardinal(_op5));
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end;
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constructor taicpu.op_reg_reg_const_const_const(op : tasmop;_op1,_op2 : tregister;_op3,_op4,_op5 : aint);
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begin
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inherited create(op);
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ops:=5;
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loadreg(0,_op1);
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loadreg(1,_op2);
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loadconst(2,_op3);
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loadconst(3,_op4);
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loadconst(4,_op5);
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end;
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constructor taicpu.op_cond_sym(op : tasmop;cond:TAsmCond;_op1 : tasmsymbol);
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begin
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inherited create(op);
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condition:=cond;
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ops:=1;
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loadsymbol(0,_op1,0);
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end;
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constructor taicpu.op_const_const_sym(op : tasmop;_op1,_op2 : aint; _op3: tasmsymbol);
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begin
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inherited create(op);
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ops:=3;
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loadconst(0,_op1);
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loadconst(1,_op2);
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loadsymbol(2,_op3,0);
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end;
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constructor taicpu.op_sym(op : tasmop;_op1 : tasmsymbol);
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begin
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inherited create(op);
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ops:=1;
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loadsymbol(0,_op1,0);
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end;
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constructor taicpu.op_sym_ofs(op : tasmop;_op1 : tasmsymbol;_op1ofs:aint);
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begin
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inherited create(op);
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ops:=1;
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loadsymbol(0,_op1,_op1ofs);
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end;
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constructor taicpu.op_reg_sym(op: tasmop; _op1: tregister; _op2: tasmsymbol);
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begin
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inherited create(op);
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ops:=2;
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loadreg(0,_op1);
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loadsymbol(1,_op2,0);
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end;
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constructor taicpu.op_reg_sym_ofs(op : tasmop;_op1 : tregister;_op2:tasmsymbol;_op2ofs : aint);
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begin
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inherited create(op);
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ops:=2;
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loadreg(0,_op1);
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loadsymbol(1,_op2,_op2ofs);
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end;
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constructor taicpu.op_sym_ofs_ref(op : tasmop;_op1 : tasmsymbol;_op1ofs:aint;const _op2 : treference);
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begin
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inherited create(op);
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ops:=2;
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loadsymbol(0,_op1,_op1ofs);
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loadref(1,_op2);
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end;
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procedure taicpu.loadroundingmode(opidx: aint; _roundmode: TRoundingMode);
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begin
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allocate_oper(opidx+1);
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with oper[opidx]^ do
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begin
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if typ<>top_roundingmode then
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clearop(opidx);
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roundingmode:=_roundmode;
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typ:=top_roundingmode;
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end;
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end;
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procedure taicpu.loadfenceflags(opidx: aint; _flags: TFenceFlags);
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begin
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allocate_oper(opidx+1);
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with oper[opidx]^ do
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begin
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if typ<>top_fenceflags then
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clearop(opidx);
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fenceflags:=_flags;
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typ:=top_fenceflags;
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end;
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end;
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{ ****************************** newra stuff *************************** }
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function taicpu.is_same_reg_move(regtype: Tregistertype):boolean;
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begin
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case regtype of
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R_INTREGISTER:
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result:=
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(opcode=A_ADDI) and
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(oper[0]^.reg=oper[1]^.reg) and
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(oper[2]^.val=0);
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R_FPUREGISTER:
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result:=
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(opcode in [A_FSGNJ_S,A_FSGNJ_D]) and
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(oper[0]^.reg=oper[1]^.reg) and
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(oper[0]^.reg=oper[2]^.reg);
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else
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result:=false;
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end;
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end;
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function taicpu.spilling_get_operation_type(opnr: longint): topertype;
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begin
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result := operand_read;
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case opcode of
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// U type
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A_LUI,
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A_AUIPC:
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if opnr=0 then
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result:=operand_write
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else
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result:=operand_read;
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// UJ type
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A_JAL:
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if opnr=0 then
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result:=operand_write
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else
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result:=operand_read;
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// I type
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A_JALR,
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A_LA,A_LB,A_LH,A_LW,A_LBU,A_LHU,
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A_ADDI,A_SLTI,A_SLTIU,
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A_XORI,A_ORI,A_ANDI,
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A_SLLI,A_SRLI,A_SRAI,
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A_FENCE,A_FENCE_I,
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A_ECALL,A_EBREAK,
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A_CSRRW,A_CSRRS,A_CSRRC,A_CSRRWI,A_CSRRSI,A_CSRRCI,
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A_FRCSR,A_FRRM,A_FRFLAGS,A_FSCSR,A_FSRM,
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A_FSFLAGS,A_FSRMI,A_FSFLAGSI:
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if opnr=0 then
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result:=operand_write
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else
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result:=operand_read;
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A_FLW,
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A_FLD:
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if opnr=0 then
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result:=operand_write
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else
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result:=operand_read;
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// SB type
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|
A_Bxx:
|
|
result:=operand_read;
|
|
|
|
// S type
|
|
A_SB,A_SH,A_SW,
|
|
|
|
A_FSW,
|
|
A_FSD:
|
|
result:=operand_read;
|
|
|
|
// R type
|
|
A_ADD,A_SUB,A_SLL,A_SLT,A_SLTU,
|
|
A_XOR,A_OR,A_AND,A_SRL,A_SRA,
|
|
|
|
A_MUL,A_MULH,A_MULHSU,A_MULHU,
|
|
A_DIV,A_DIVU,A_REM,A_REMU,
|
|
|
|
A_LR_W,A_SC_W,A_AMOSWAP_W,A_AMOADD_W,A_AMOXOR_W,A_AMOAND_W,
|
|
A_AMOOR_W,A_AMOMIN_W,A_AMOMAX_W,A_AMOMINU_W,A_AMOMAXU_W,
|
|
|
|
A_FADD_S,A_FSUB_S,A_FMUL_S,A_FDIV_S,
|
|
A_FSQRT_S,A_FSGNJ_S,A_FSGNJN_S,A_FSGNJX_S,
|
|
A_FMIN_S,A_FMAX_S,
|
|
A_FMV_X_S,A_FEQ_S,A_FLT_S,A_FLE_S,A_FCLASS_S,
|
|
A_FCVT_W_S,A_FCVT_WU_S,A_FCVT_S_W,A_FCVT_S_WU,
|
|
A_FMV_S_X,
|
|
|
|
A_FADD_D,A_FSUB_D,A_FMUL_D,A_FDIV_D,
|
|
A_FSQRT_D,A_FSGNJ_D,A_FSGNJN_D,A_FSGNJX_D,
|
|
A_FMIN_D,A_FMAX_D,
|
|
A_FEQ_D,A_FLT_D,A_FLE_D,A_FCLASS_D,
|
|
A_FCVT_D_S,A_FCVT_S_D,
|
|
A_FCVT_W_D,A_FCVT_WU_D,A_FCVT_D_W,A_FCVT_D_WU:
|
|
if opnr=0 then
|
|
result:=operand_write
|
|
else
|
|
result:=operand_read;
|
|
|
|
// R4 type
|
|
A_FMADD_S,A_FMSUB_S,A_FNMSUB_S,A_FNMADD_S,
|
|
|
|
A_FMADD_D,A_FMSUB_D,A_FNMSUB_D,A_FNMADD_D:
|
|
if opnr=0 then
|
|
result:=operand_write
|
|
else
|
|
result:=operand_read;
|
|
{$ifdef RISCV64}
|
|
A_LR_D,A_SC_D,A_AMOSWAP_D,A_AMOADD_D,A_AMOXOR_D,A_AMOAND_D,
|
|
A_AMOOR_D,A_AMOMIN_D,A_AMOMAX_D,A_AMOMINU_D,A_AMOMAXU_D,
|
|
|
|
A_MULW,
|
|
A_DIVW,A_DIVUW,A_REMW,A_REMUW,
|
|
|
|
A_FCVT_L_S,A_FCVT_LU_S,
|
|
A_FCVT_S_L,A_FCVT_S_LU,
|
|
|
|
A_FCVT_L_D,A_FCVT_LU_D,A_FMV_X_D,
|
|
A_FCVT_D_L,A_FCVT_D_LU,A_FMV_D_X,
|
|
|
|
A_ADDIW,A_SLLIW,A_SRLIW,A_SRAIW,
|
|
A_ADDW,A_SLLW,A_SRLW,A_SUBW,A_SRAW,
|
|
A_LD,A_LWU:
|
|
if opnr=0 then
|
|
result:=operand_write
|
|
else
|
|
result:=operand_read;
|
|
|
|
A_SD:
|
|
result:=operand_read;
|
|
{$endif RISCV64}
|
|
else
|
|
;
|
|
end;
|
|
end;
|
|
|
|
|
|
function taicpu.spilling_get_operation_type_ref(opnr: longint; reg: tregister): topertype;
|
|
begin
|
|
result := operand_read;
|
|
end;
|
|
|
|
|
|
function spilling_create_load(const ref:treference;r:tregister):Taicpu;
|
|
begin
|
|
case getregtype(r) of
|
|
R_INTREGISTER:
|
|
{$ifdef cpu64bitalu}
|
|
result:=taicpu.op_reg_ref(A_LD,r,ref);
|
|
{$else cpu64bitalu}
|
|
result:=taicpu.op_reg_ref(A_LW,r,ref);
|
|
{$endif cpu64bitalu}
|
|
R_FPUREGISTER:
|
|
result:=taicpu.op_reg_ref(A_FLD,r,ref);
|
|
else
|
|
internalerror(2005123101);
|
|
end;
|
|
end;
|
|
|
|
|
|
function spilling_create_store(r:tregister; const ref:treference):Taicpu;
|
|
begin
|
|
case getregtype(r) of
|
|
R_INTREGISTER:
|
|
{$ifdef cpu64bitalu}
|
|
result:=taicpu.op_reg_ref(A_SD,r,ref);
|
|
{$else cpu64bitalu}
|
|
result:=taicpu.op_reg_ref(A_SW,r,ref);
|
|
{$endif cpu64bitalu}
|
|
R_FPUREGISTER:
|
|
result:=taicpu.op_reg_ref(A_FSD,r,ref);
|
|
else
|
|
internalerror(2005123102);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure InitAsm;
|
|
begin
|
|
end;
|
|
|
|
|
|
procedure DoneAsm;
|
|
begin
|
|
end;
|
|
|
|
|
|
begin
|
|
cai_align:=tai_align;
|
|
cai_cpu:=taicpu;
|
|
end.
|
|
|