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robfinch |
// ============================================================================
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// __
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// \\__/ o\ (C) 2012-2018 Robert Finch, Waterloo
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// \ __ / All rights reserved.
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// \/_// robfinch<remove>@finitron.ca
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// ||
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//
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// CC64 - 'C' derived language compiler
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// - 64 bit CPU
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//
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// This source file is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This source file 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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//
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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, see <http://www.gnu.org/licenses/>.
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//
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// ============================================================================
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//
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#include "stdafx.h"
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extern TYP stdfunc;
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extern void DumpCSETable();
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extern void scan(Statement *);
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extern void GenerateComment(char *);
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int TempFPInvalidate();
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int TempInvalidate();
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void TempRevalidate(int,int);
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void TempFPRevalidate(int);
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void ReleaseTempRegister(Operand *ap);
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Operand *GetTempRegister();
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extern void GenLoad(Operand *ap1, Operand *ap3, int ssize, int size);
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Operand *GenExpr(ENODE *node)
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{
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Operand *ap1,*ap2,*ap3,*ap4;
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int lab0, lab1;
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int size;
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int op;
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lab0 = nextlabel++;
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lab1 = nextlabel++;
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switch(node->nodetype) {
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case en_eq: op = op_seq; break;
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case en_ne: op = op_sne; break;
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case en_lt: op = op_slt; break;
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case en_ult: op = op_sltu; break;
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case en_le: op = op_sle; break;
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case en_ule: op = op_sleu; break;
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case en_gt: op = op_sgt; break;
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case en_ugt: op = op_sgtu; break;
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case en_ge: op = op_sge; break;
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case en_uge: op = op_sgeu; break;
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case en_flt: op = op_fslt; break;
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case en_fle: op = op_fsle; break;
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case en_fgt: op = op_fsgt; break;
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case en_fge: op = op_fsge; break;
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case en_feq: op = op_fseq; break;
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case en_fne: op = op_fsne; break;
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case en_veq:
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size = GetNaturalSize(node);
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ap3 = GetTempVectorRegister();
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ap1 = GenerateExpression(node->p[0],F_REG,size);
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ap2 = GenerateExpression(node->p[1],F_REG,size);
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GenerateTriadic(op_vseq,0,ap3,ap1,ap2);
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ReleaseTempReg(ap2);
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ReleaseTempReg(ap1);
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return (ap3);
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case en_vne:
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size = GetNaturalSize(node);
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ap3 = GetTempVectorRegister();
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ap1 = GenerateExpression(node->p[0],F_REG,size);
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ap2 = GenerateExpression(node->p[1],F_REG,size);
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GenerateTriadic(op_vsne,0,ap3,ap1,ap2);
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ReleaseTempReg(ap2);
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ReleaseTempReg(ap1);
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return (ap3);
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case en_vlt:
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size = GetNaturalSize(node);
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ap3 = GetTempVectorRegister();
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ap1 = GenerateExpression(node->p[0],F_REG,size);
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ap2 = GenerateExpression(node->p[1],F_REG,size);
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GenerateTriadic(op_vslt,0,ap3,ap1,ap2);
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ReleaseTempReg(ap2);
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ReleaseTempReg(ap1);
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return (ap3);
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case en_vle:
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size = GetNaturalSize(node);
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ap3 = GetTempVectorRegister();
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ap1 = GenerateExpression(node->p[0],F_REG,size);
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ap2 = GenerateExpression(node->p[1],F_REG,size);
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GenerateTriadic(op_vsle,0,ap3,ap1,ap2);
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ReleaseTempReg(ap2);
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ReleaseTempReg(ap1);
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return (ap3);
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case en_vgt:
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size = GetNaturalSize(node);
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ap3 = GetTempVectorRegister();
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ap1 = GenerateExpression(node->p[0],F_REG,size);
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ap2 = GenerateExpression(node->p[1],F_REG,size);
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GenerateTriadic(op_vsgt,0,ap3,ap1,ap2);
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ReleaseTempReg(ap2);
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ReleaseTempReg(ap1);
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return (ap3);
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case en_vge:
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size = GetNaturalSize(node);
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ap3 = GetTempVectorRegister();
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ap1 = GenerateExpression(node->p[0],F_REG,size);
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ap2 = GenerateExpression(node->p[1],F_REG,size);
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GenerateTriadic(op_vsge,0,ap3,ap1,ap2);
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ReleaseTempReg(ap2);
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ReleaseTempReg(ap1);
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return (ap3);
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default: // en_land, en_lor
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//ap1 = GetTempRegister();
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//ap2 = GenerateExpression(node,F_REG,8);
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//GenerateDiadic(op_redor,0,ap1,ap2);
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//ReleaseTempReg(ap2);
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GenerateFalseJump(node,lab0,0);
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ap1 = GetTempRegister();
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GenerateDiadic(op_ldi,0,ap1,make_immed(1));
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GenerateMonadic(op_bra,0,make_label(lab1));
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GenerateLabel(lab0);
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GenerateDiadic(op_ldi,0,ap1,make_immed(0));
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GenerateLabel(lab1);
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return ap1;
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}
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switch (node->nodetype) {
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case en_eq:
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size = GetNaturalSize(node);
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ap3 = GetTempRegister();
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ap1 = GenerateExpression(node->p[0], F_REG, size);
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ap2 = GenerateExpression(node->p[1], F_REG | F_IMMED, size);
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GenerateTriadic(op_xnor, 0, ap3, ap1, ap2);
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ReleaseTempRegister(ap2);
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ReleaseTempRegister(ap1);
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GenerateDiadic(op_redor, 0, ap3, ap3);
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return (ap3);
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case en_ne:
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size = GetNaturalSize(node);
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ap3 = GetTempRegister();
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ap1 = GenerateExpression(node->p[0], F_REG, size);
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ap2 = GenerateExpression(node->p[1], F_REG | F_IMMED, size);
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GenerateTriadic(op_xor, 0, ap3, ap1, ap2);
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ReleaseTempRegister(ap2);
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ReleaseTempRegister(ap1);
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GenerateDiadic(op_redor, 0, ap3, ap3);
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return (ap3);
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case en_lt:
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size = GetNaturalSize(node);
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ap3 = GetTempRegister();
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ap1 = GenerateExpression(node->p[0], F_REG, size);
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ap2 = GenerateExpression(node->p[1], F_REG | F_IMMED, size);
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GenerateTriadic(op_slt, 0, ap3, ap1, ap2);
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ReleaseTempRegister(ap2);
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ReleaseTempRegister(ap1);
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// GenerateDiadic(op_slt,0,ap3,ap3);
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return (ap3);
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case en_le:
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size = GetNaturalSize(node);
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ap3 = GetTempRegister();
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ap1 = GenerateExpression(node->p[0], F_REG, size);
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ap2 = GenerateExpression(node->p[1], F_REG | F_IMMED, size);
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GenerateTriadic(op_sle, 0, ap3, ap1, ap2);
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ReleaseTempRegister(ap2);
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ReleaseTempRegister(ap1);
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// GenerateDiadic(op_sle,0,ap3,ap3);
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return (ap3);
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case en_gt:
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size = GetNaturalSize(node);
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ap3 = GetTempRegister();
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ap1 = GenerateExpression(node->p[0], F_REG, size);
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ap2 = GenerateExpression(node->p[1], F_REG | F_IMMED, size);
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if (ap2->mode == am_reg)
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GenerateTriadic(op_slt, 0, ap3, ap2, ap1);
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else
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GenerateTriadic(op_sgt, 0, ap3, ap1, ap2);
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ReleaseTempRegister(ap2);
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ReleaseTempRegister(ap1);
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// GenerateDiadic(op_sgt,0,ap3,ap3);
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return (ap3);
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case en_ge:
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size = GetNaturalSize(node);
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ap3 = GetTempRegister();
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ap1 = GenerateExpression(node->p[0], F_REG, size);
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ap2 = GenerateExpression(node->p[1], F_REG | F_IMMED, size);
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GenerateTriadic(op_slt, 0, ap3, ap1, ap2);
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GenerateDiadic(op_not, 0, ap3, ap3);
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ReleaseTempRegister(ap2);
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ReleaseTempRegister(ap1);
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// GenerateDiadic(op_sge,0,ap3,ap3);
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return (ap3);
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case en_ult:
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size = GetNaturalSize(node);
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ap3 = GetTempRegister();
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ap1 = GenerateExpression(node->p[0], F_REG, size);
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ap2 = GenerateExpression(node->p[1], F_REG | F_IMMED, size);
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GenerateTriadic(op_sltu, 0, ap3, ap1, ap2);
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ReleaseTempRegister(ap2);
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ReleaseTempRegister(ap1);
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// GenerateDiadic(op_slt,0,ap3,ap3);
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return (ap3);
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case en_ule:
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size = GetNaturalSize(node);
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ap3 = GetTempRegister();
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ap1 = GenerateExpression(node->p[0], F_REG, size);
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ap2 = GenerateExpression(node->p[1], F_REG | F_IMMED, size);
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if (ap2->mode == am_imm) {
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GenerateTriadic(op_sgt, 0, ap3, ap1, ap2);
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GenerateDiadic(op_not, 0, ap3, ap3);
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}
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else
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GenerateTriadic(op_sleu, 0, ap3, ap1, ap2);
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ReleaseTempRegister(ap2);
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ReleaseTempRegister(ap1);
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// GenerateDiadic(op_sle,0,ap3,ap3);
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return (ap3);
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case en_ugt:
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size = GetNaturalSize(node);
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ap3 = GetTempRegister();
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ap1 = GenerateExpression(node->p[0], F_REG, size);
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ap2 = GenerateExpression(node->p[1], F_REG | F_IMMED, size);
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if (ap2->mode == am_reg)
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GenerateTriadic(op_sleu, 0, ap3, ap2, ap1);
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else
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GenerateTriadic(op_sgtu, 0, ap3, ap1, ap2);
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ReleaseTempRegister(ap2);
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ReleaseTempRegister(ap1);
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| 238 |
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// GenerateDiadic(op_sgt,0,ap3,ap3);
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| 239 |
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return (ap3);
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case en_uge:
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size = GetNaturalSize(node);
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| 242 |
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ap3 = GetTempRegister();
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| 243 |
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ap1 = GenerateExpression(node->p[0], F_REG, size);
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| 244 |
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ap2 = GenerateExpression(node->p[1], F_REG | F_IMMED, size);
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| 245 |
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if (ap2->mode == am_reg)
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| 246 |
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GenerateTriadic(op_sleu, 0, ap3, ap2, ap1);
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| 247 |
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else {
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| 248 |
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GenerateTriadic(op_sltu, 0, ap3, ap1, ap2);
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| 249 |
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GenerateDiadic(op_not, 0, ap3, ap3);
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| 250 |
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}
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| 251 |
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ReleaseTempRegister(ap2);
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| 252 |
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ReleaseTempRegister(ap1);
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| 253 |
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// GenerateDiadic(op_sge,0,ap3,ap3);
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| 254 |
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return (ap3);
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| 255 |
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case en_flt:
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| 256 |
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case en_fle:
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| 257 |
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case en_fgt:
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| 258 |
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case en_fge:
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| 259 |
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case en_feq:
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| 260 |
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case en_fne:
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| 261 |
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size = GetNaturalSize(node);
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| 262 |
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ap3 = GetTempRegister();
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| 263 |
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ap1 = GenerateExpression(node->p[0], F_FPREG, size);
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| 264 |
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ap2 = GenerateExpression(node->p[1], F_FPREG, size);
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| 265 |
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GenerateTriadic(op, ap1->fpsize(), ap3, ap1, ap2);
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| 266 |
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ReleaseTempRegister(ap2);
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| 267 |
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ReleaseTempRegister(ap1);
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| 268 |
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return (ap3);
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| 269 |
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/*
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| 270 |
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case en_ne:
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| 271 |
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case en_lt:
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| 272 |
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case en_ult:
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| 273 |
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case en_gt:
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| 274 |
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case en_ugt:
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| 275 |
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case en_le:
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| 276 |
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case en_ule:
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| 277 |
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case en_ge:
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| 278 |
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case en_uge:
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| 279 |
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size = GetNaturalSize(node);
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| 280 |
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ap1 = GenerateExpression(node->p[0],F_REG, size);
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| 281 |
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ap2 = GenerateExpression(node->p[1],F_REG|F_IMMED,size);
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| 282 |
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GenerateTriadic(op,0,ap1,ap1,ap2);
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| 283 |
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ReleaseTempRegister(ap2);
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| 284 |
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return ap1;
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| 285 |
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*/
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| 286 |
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case en_chk:
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| 287 |
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size = GetNaturalSize(node);
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| 288 |
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ap4 = GetTempRegister();
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| 289 |
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ap1 = GenerateExpression(node->p[0],F_REG,size);
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| 290 |
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ap2 = GenerateExpression(node->p[1],F_REG,size);
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| 291 |
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ap3 = GenerateExpression(node->p[2],F_REG|F_IMM0,size);
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| 292 |
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if (ap3->mode == am_imm) { // must be a zero
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| 293 |
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ap3->mode = am_reg;
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| 294 |
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ap3->preg = 0;
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| 295 |
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}
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| 296 |
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Generate4adic(op_chk,0,ap4,ap1,ap2,ap3);
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| 297 |
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ReleaseTempRegister(ap3);
|
| 298 |
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ReleaseTempRegister(ap2);
|
| 299 |
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ReleaseTempRegister(ap1);
|
| 300 |
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return ap4;
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| 301 |
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}
|
| 302 |
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size = GetNaturalSize(node);
|
| 303 |
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ap3 = GetTempRegister();
|
| 304 |
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ap1 = GenerateExpression(node->p[0],F_REG,size);
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| 305 |
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ap2 = GenerateExpression(node->p[1],F_REG|F_IMMED,size);
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| 306 |
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GenerateTriadic(op,0,ap3,ap1,ap2);
|
| 307 |
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ReleaseTempRegister(ap2);
|
| 308 |
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ReleaseTempRegister(ap1);
|
| 309 |
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return ap3;
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| 310 |
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/*
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| 311 |
|
|
GenerateFalseJump(node,lab0,0);
|
| 312 |
|
|
ap1 = GetTempRegister();
|
| 313 |
|
|
GenerateDiadic(op_ld,0,ap1,make_immed(1));
|
| 314 |
|
|
GenerateMonadic(op_bra,0,make_label(lab1));
|
| 315 |
|
|
GenerateLabel(lab0);
|
| 316 |
|
|
GenerateDiadic(op_ld,0,ap1,make_immed(0));
|
| 317 |
|
|
GenerateLabel(lab1);
|
| 318 |
|
|
return ap1;
|
| 319 |
|
|
*/
|
| 320 |
|
|
}
|
| 321 |
|
|
|
| 322 |
|
|
void GenerateCmp(ENODE *node, int op, int label, int predreg, unsigned int prediction)
|
| 323 |
|
|
{
|
| 324 |
|
|
int size, sz;
|
| 325 |
|
|
Operand *ap1, *ap2, *ap3;
|
| 326 |
|
|
|
| 327 |
|
|
size = GetNaturalSize(node);
|
| 328 |
|
|
if (op==op_flt || op==op_fle || op==op_fgt || op==op_fge || op==op_feq || op==op_fne) {
|
| 329 |
|
|
ap1 = GenerateExpression(node->p[0],F_FPREG,size);
|
| 330 |
|
|
ap2 = GenerateExpression(node->p[1],F_FPREG,size);
|
| 331 |
|
|
}
|
| 332 |
|
|
else {
|
| 333 |
|
|
ap1 = GenerateExpression(node->p[0],F_REG, size);
|
| 334 |
|
|
ap2 = GenerateExpression(node->p[1],F_REG|F_IMMED,size);
|
| 335 |
|
|
}
|
| 336 |
|
|
/*
|
| 337 |
|
|
// Optimize CMP to zero and branch into plain branch, this works only for
|
| 338 |
|
|
// signed relational compares.
|
| 339 |
|
|
if (ap2->mode == am_imm && ap2->offset->i==0 && (op==op_eq || op==op_ne || op==op_lt || op==op_le || op==op_gt || op==op_ge)) {
|
| 340 |
|
|
switch(op)
|
| 341 |
|
|
{
|
| 342 |
|
|
case op_eq: op = op_beq; break;
|
| 343 |
|
|
case op_ne: op = op_bne; break;
|
| 344 |
|
|
case op_lt: op = op_blt; break;
|
| 345 |
|
|
case op_le: op = op_ble; break;
|
| 346 |
|
|
case op_gt: op = op_bgt; break;
|
| 347 |
|
|
case op_ge: op = op_bge; break;
|
| 348 |
|
|
}
|
| 349 |
|
|
ReleaseTempReg(ap3);
|
| 350 |
|
|
ReleaseTempReg(ap2);
|
| 351 |
|
|
ReleaseTempReg(ap1);
|
| 352 |
|
|
GenerateDiadic(op,0,ap1,make_clabel(label));
|
| 353 |
|
|
return;
|
| 354 |
|
|
}
|
| 355 |
|
|
*/
|
| 356 |
|
|
/*
|
| 357 |
|
|
if (op==op_ltu || op==op_leu || op==op_gtu || op==op_geu)
|
| 358 |
|
|
GenerateTriadic(op_cmpu,0,ap3,ap1,ap2);
|
| 359 |
|
|
else if (op==op_flt || op==op_fle || op==op_fgt || op==op_fge || op==op_feq || op==op_fne)
|
| 360 |
|
|
GenerateTriadic(op_fdcmp,0,ap3,ap1,ap2);
|
| 361 |
|
|
else
|
| 362 |
|
|
GenerateTriadic(op_cmp,0,ap3,ap1,ap2);
|
| 363 |
|
|
*/
|
| 364 |
|
|
sz = 0;
|
| 365 |
|
|
switch(op)
|
| 366 |
|
|
{
|
| 367 |
|
|
case op_bchk: break;
|
| 368 |
|
|
case op_eq: op = op_beq; break;
|
| 369 |
|
|
case op_ne: op = op_bne; break;
|
| 370 |
|
|
case op_lt: op = op_blt; break;
|
| 371 |
|
|
case op_le: op = op_ble; break;
|
| 372 |
|
|
case op_gt: op = op_bgt; break;
|
| 373 |
|
|
case op_ge: op = op_bge; break;
|
| 374 |
|
|
case op_ltu: op = op_bltu; break;
|
| 375 |
|
|
case op_leu: op = op_bleu; break;
|
| 376 |
|
|
case op_gtu: op = op_bgtu; break;
|
| 377 |
|
|
case op_geu: op = op_bgeu; break;
|
| 378 |
|
|
case op_feq: op = op_fbeq; sz = 'd'; break;
|
| 379 |
|
|
case op_fne: op = op_fbne; sz = 'd'; break;
|
| 380 |
|
|
case op_flt: op = op_fblt; sz = 'd'; break;
|
| 381 |
|
|
case op_fle: op = op_fble; sz = 'd'; break;
|
| 382 |
|
|
case op_fgt: op = op_fbgt; sz = 'd'; break;
|
| 383 |
|
|
case op_fge: op = op_fbge; sz = 'd'; break;
|
| 384 |
|
|
/*
|
| 385 |
|
|
GenerateTriadic(op_fcmp,'q',ap3,ap1,ap2);
|
| 386 |
|
|
GenerateTriadic(op_bbs,0,ap3,make_immed(0),make_clabel(label));
|
| 387 |
|
|
goto xit;
|
| 388 |
|
|
case op_fne:
|
| 389 |
|
|
GenerateTriadic(op_fcmp,'q',ap3,ap1,ap2);
|
| 390 |
|
|
GenerateTriadic(op_bbc,0,ap3,make_immed(0),make_clabel(label));
|
| 391 |
|
|
goto xit;
|
| 392 |
|
|
case op_flt:
|
| 393 |
|
|
GenerateTriadic(op_fcmp,'q',ap3,ap1,ap2);
|
| 394 |
|
|
GenerateTriadic(op_bbs,0,ap3,make_immed(1),make_clabel(label));
|
| 395 |
|
|
goto xit;
|
| 396 |
|
|
case op_fle:
|
| 397 |
|
|
GenerateTriadic(op_fcmp,'q',ap3,ap1,ap2);
|
| 398 |
|
|
GenerateTriadic(op_bbs,0,ap3,make_immed(2),make_clabel(label));
|
| 399 |
|
|
goto xit;
|
| 400 |
|
|
case op_fgt:
|
| 401 |
|
|
GenerateTriadic(op_fcmp,'q',ap3,ap1,ap2);
|
| 402 |
|
|
GenerateTriadic(op_bbc,0,ap3,make_immed(2),make_clabel(label));
|
| 403 |
|
|
goto xit;
|
| 404 |
|
|
case op_fge:
|
| 405 |
|
|
GenerateTriadic(op_fcmp,'q',ap3,ap1,ap2);
|
| 406 |
|
|
GenerateTriadic(op_bbc,0,ap3,make_immed(1),make_clabel(label));
|
| 407 |
|
|
goto xit;
|
| 408 |
|
|
*/
|
| 409 |
|
|
}
|
| 410 |
|
|
if (op==op_fbne || op==op_fbeq || op==op_fblt || op==op_fble || op==op_fbgt || op==op_fbge) {
|
| 411 |
|
|
switch(op) {
|
| 412 |
|
|
case op_fbne:
|
| 413 |
|
|
if (ap2->mode==am_imm) {
|
| 414 |
|
|
ap3 = GetTempFPRegister();
|
| 415 |
|
|
GenerateDiadic(op_ldi,0,ap3,ap2);
|
| 416 |
|
|
ReleaseTempRegister(ap3);
|
| 417 |
|
|
GenerateTriadic(op_fbne,sz,ap1,ap3,make_clabel(label));
|
| 418 |
|
|
}
|
| 419 |
|
|
else
|
| 420 |
|
|
GenerateTriadic(op_fbne,sz,ap1,ap2,make_clabel(label));
|
| 421 |
|
|
break;
|
| 422 |
|
|
case op_fbeq:
|
| 423 |
|
|
if (ap2->mode==am_imm) {
|
| 424 |
|
|
ap3 = GetTempRegister();
|
| 425 |
|
|
GenerateDiadic(op_ldi,0,ap3,ap2);
|
| 426 |
|
|
ReleaseTempRegister(ap3);
|
| 427 |
|
|
GenerateTriadic(op_fbeq,sz,ap1,ap3,make_clabel(label));
|
| 428 |
|
|
}
|
| 429 |
|
|
else
|
| 430 |
|
|
GenerateTriadic(op_fbeq,sz,ap1,ap2,make_clabel(label));
|
| 431 |
|
|
break;
|
| 432 |
|
|
case op_fblt:
|
| 433 |
|
|
if (ap2->mode==am_imm) {
|
| 434 |
|
|
ap3 = GetTempRegister();
|
| 435 |
|
|
GenerateDiadic(op_ldi,0,ap3,ap2);
|
| 436 |
|
|
ReleaseTempRegister(ap3);
|
| 437 |
|
|
GenerateTriadic(op_fblt,sz,ap1,ap3,make_clabel(label));
|
| 438 |
|
|
}
|
| 439 |
|
|
else
|
| 440 |
|
|
GenerateTriadic(op_fblt,sz,ap1,ap2,make_clabel(label));
|
| 441 |
|
|
break;
|
| 442 |
|
|
case op_fble:
|
| 443 |
|
|
if (ap2->mode==am_imm) {
|
| 444 |
|
|
ap3 = GetTempRegister();
|
| 445 |
|
|
GenerateDiadic(op_ldi,0,ap3,ap2);
|
| 446 |
|
|
ReleaseTempRegister(ap3);
|
| 447 |
|
|
GenerateTriadic(op_fbge,sz,ap3,ap1,make_clabel(label));
|
| 448 |
|
|
}
|
| 449 |
|
|
else
|
| 450 |
|
|
GenerateTriadic(op_fbge,sz,ap2,ap1,make_clabel(label));
|
| 451 |
|
|
break;
|
| 452 |
|
|
case op_fbgt:
|
| 453 |
|
|
if (ap2->mode==am_imm) {
|
| 454 |
|
|
ap3 = GetTempRegister();
|
| 455 |
|
|
GenerateDiadic(op_ldi,0,ap3,ap2);
|
| 456 |
|
|
ReleaseTempRegister(ap3);
|
| 457 |
|
|
GenerateTriadic(op_fblt,sz,ap3,ap1,make_clabel(label));
|
| 458 |
|
|
}
|
| 459 |
|
|
else
|
| 460 |
|
|
GenerateTriadic(op_fblt,sz,ap2,ap1,make_clabel(label));
|
| 461 |
|
|
break;
|
| 462 |
|
|
case op_fbge:
|
| 463 |
|
|
if (ap2->mode==am_imm) {
|
| 464 |
|
|
ap3 = GetTempRegister();
|
| 465 |
|
|
GenerateDiadic(op_ldi,0,ap3,ap2);
|
| 466 |
|
|
ReleaseTempRegister(ap3);
|
| 467 |
|
|
GenerateTriadic(op_fbge,sz,ap1,ap3,make_clabel(label));
|
| 468 |
|
|
}
|
| 469 |
|
|
else
|
| 470 |
|
|
GenerateTriadic(op_fbge,sz,ap1,ap2,make_clabel(label));
|
| 471 |
|
|
break;
|
| 472 |
|
|
}
|
| 473 |
|
|
}
|
| 474 |
|
|
else {
|
| 475 |
|
|
switch(op) {
|
| 476 |
|
|
case op_beq:
|
| 477 |
|
|
if (ap2->mode==am_imm && ap2->offset->nodetype==en_icon && ap2->offset->i >= -128 && ap2->offset->i <=128) {
|
| 478 |
|
|
GenerateTriadic(op_beqi,0,ap1,ap2,make_clabel(label));
|
| 479 |
|
|
}
|
| 480 |
|
|
else if (ap2->mode==am_imm) {
|
| 481 |
|
|
ap3 = GetTempRegister();
|
| 482 |
|
|
GenerateTriadic(op_xor, 0, ap3, ap1, ap2);
|
| 483 |
|
|
ReleaseTempRegister(ap3);
|
| 484 |
|
|
GenerateTriadic(op_beq,0,ap3,makereg(0),make_clabel(label));
|
| 485 |
|
|
}
|
| 486 |
|
|
else {
|
| 487 |
|
|
ReleaseTempReg(ap2);
|
| 488 |
|
|
ReleaseTempReg(ap1);
|
| 489 |
|
|
GenerateTriadic(op_beq, 0, ap1, ap2, make_clabel(label));
|
| 490 |
|
|
return;
|
| 491 |
|
|
}
|
| 492 |
|
|
break;
|
| 493 |
|
|
case op_bne:
|
| 494 |
|
|
if (ap2->mode==am_imm) {
|
| 495 |
|
|
if (ap2->offset->i == 0)
|
| 496 |
|
|
GenerateTriadic(op_bne,0,ap1,makereg(0),make_clabel(label));
|
| 497 |
|
|
else {
|
| 498 |
|
|
ap3 = GetTempRegister();
|
| 499 |
|
|
GenerateTriadic(op_xor, 0, ap3, ap1, ap2);
|
| 500 |
|
|
ReleaseTempRegister(ap3);
|
| 501 |
|
|
GenerateTriadic(op_bne,0,ap3,makereg(0),make_clabel(label));
|
| 502 |
|
|
}
|
| 503 |
|
|
}
|
| 504 |
|
|
else {
|
| 505 |
|
|
GenerateTriadic(op_bne,0,ap1,ap2,make_clabel(label));
|
| 506 |
|
|
}
|
| 507 |
|
|
break;
|
| 508 |
|
|
case op_blt:
|
| 509 |
|
|
if (ap2->mode==am_imm) {
|
| 510 |
|
|
if (ap2->offset->i == 0)
|
| 511 |
|
|
GenerateTriadic(op_blt,0,ap1,makereg(0),make_clabel(label));
|
| 512 |
|
|
else {
|
| 513 |
|
|
ap3 = GetTempRegister();
|
| 514 |
|
|
GenerateTriadic(op_slt, 0, ap3, ap1, ap2);
|
| 515 |
|
|
ReleaseTempRegister(ap3);
|
| 516 |
|
|
GenerateTriadic(op_bne,0,ap3,makereg(0),make_clabel(label));
|
| 517 |
|
|
}
|
| 518 |
|
|
}
|
| 519 |
|
|
else
|
| 520 |
|
|
GenerateTriadic(op_blt,0,ap1,ap2,make_clabel(label));
|
| 521 |
|
|
break;
|
| 522 |
|
|
case op_ble:
|
| 523 |
|
|
if (ap2->mode==am_imm) {
|
| 524 |
|
|
if (ap2->offset->i == 0)
|
| 525 |
|
|
GenerateTriadic(op_bge,0,makereg(0),ap1,make_clabel(label));
|
| 526 |
|
|
else {
|
| 527 |
|
|
ap3 = GetTempRegister();
|
| 528 |
|
|
GenerateTriadic(op_sle , 0, ap3, ap1, ap2);
|
| 529 |
|
|
ReleaseTempRegister(ap3);
|
| 530 |
|
|
GenerateTriadic(op_bne,0,makereg(0),ap3,make_clabel(label));
|
| 531 |
|
|
}
|
| 532 |
|
|
}
|
| 533 |
|
|
else
|
| 534 |
|
|
GenerateTriadic(op_bge,0,ap2,ap1,make_clabel(label));
|
| 535 |
|
|
break;
|
| 536 |
|
|
case op_bgt:
|
| 537 |
|
|
if (ap2->mode==am_imm) {
|
| 538 |
|
|
if (ap2->offset->i == 0)
|
| 539 |
|
|
GenerateTriadic(op_blt,0,makereg(0),ap1,make_clabel(label));
|
| 540 |
|
|
else {
|
| 541 |
|
|
ap3 = GetTempRegister();
|
| 542 |
|
|
GenerateTriadic(op_sle, 0, ap3, ap1, ap2);
|
| 543 |
|
|
ReleaseTempRegister(ap3);
|
| 544 |
|
|
GenerateTriadic(op_beq,0,makereg(0),ap3,make_clabel(label));
|
| 545 |
|
|
}
|
| 546 |
|
|
}
|
| 547 |
|
|
else
|
| 548 |
|
|
GenerateTriadic(op_blt,0,ap2,ap1,make_clabel(label));
|
| 549 |
|
|
break;
|
| 550 |
|
|
case op_bge:
|
| 551 |
|
|
if (ap2->mode==am_imm) {
|
| 552 |
|
|
if (ap2->offset->i==0) {
|
| 553 |
|
|
GenerateTriadic(op_bge,0,ap1,makereg(0),make_clabel(label));
|
| 554 |
|
|
}
|
| 555 |
|
|
else {
|
| 556 |
|
|
ap3 = GetTempRegister();
|
| 557 |
|
|
GenerateTriadic(op_slt, 0, ap3, ap1, ap2);
|
| 558 |
|
|
ReleaseTempRegister(ap3);
|
| 559 |
|
|
GenerateTriadic(op_beq,0,ap3,makereg(0),make_clabel(label));
|
| 560 |
|
|
}
|
| 561 |
|
|
}
|
| 562 |
|
|
else
|
| 563 |
|
|
GenerateTriadic(op_bge,0,ap1,ap2,make_clabel(label));
|
| 564 |
|
|
break;
|
| 565 |
|
|
case op_bltu:
|
| 566 |
|
|
if (ap2->mode==am_imm) {
|
| 567 |
|
|
// Don't generate any code if testing against unsigned zero.
|
| 568 |
|
|
// An unsigned number can't be less than zero so the branch will
|
| 569 |
|
|
// always be false. Spit out a warning, its probably coded wrong.
|
| 570 |
|
|
if (ap2->offset->i == 0)
|
| 571 |
|
|
error(ERR_UBLTZ); //GenerateTriadic(op_bltu,0,ap1,makereg(0),make_clabel(label));
|
| 572 |
|
|
else {
|
| 573 |
|
|
ap3 = GetTempRegister();
|
| 574 |
|
|
GenerateTriadic(op_sltu, 0, ap3, ap1, ap2);
|
| 575 |
|
|
ReleaseTempRegister(ap3);
|
| 576 |
|
|
GenerateTriadic(op_bne,0,ap3,makereg(0),make_clabel(label));
|
| 577 |
|
|
}
|
| 578 |
|
|
}
|
| 579 |
|
|
else
|
| 580 |
|
|
GenerateTriadic(op_bltu,0,ap1,ap2,make_clabel(label));
|
| 581 |
|
|
break;
|
| 582 |
|
|
case op_bleu:
|
| 583 |
|
|
if (ap2->mode==am_imm) {
|
| 584 |
|
|
if (ap2->offset->i == 0)
|
| 585 |
|
|
GenerateTriadic(op_bgeu,0,makereg(0),ap1,make_clabel(label));
|
| 586 |
|
|
else {
|
| 587 |
|
|
ap3 = GetTempRegister();
|
| 588 |
|
|
GenerateTriadic(op_sleu, 0, ap3, ap1, ap2);
|
| 589 |
|
|
ReleaseTempRegister(ap3);
|
| 590 |
|
|
GenerateTriadic(op_bne,0,makereg(0),ap3,make_clabel(label));
|
| 591 |
|
|
}
|
| 592 |
|
|
}
|
| 593 |
|
|
else
|
| 594 |
|
|
GenerateTriadic(op_bgeu,0,ap2,ap1,make_clabel(label));
|
| 595 |
|
|
break;
|
| 596 |
|
|
case op_bgtu:
|
| 597 |
|
|
if (ap2->mode==am_imm) {
|
| 598 |
|
|
if (ap2->offset->i == 0)
|
| 599 |
|
|
GenerateTriadic(op_bltu,0,makereg(0),ap1,make_clabel(label));
|
| 600 |
|
|
else {
|
| 601 |
|
|
ap3 = GetTempRegister();
|
| 602 |
|
|
GenerateTriadic(op_sleu, 0, ap3, ap1, ap2);
|
| 603 |
|
|
ReleaseTempRegister(ap3);
|
| 604 |
|
|
GenerateTriadic(op_beq,0,makereg(0),ap3,make_clabel(label));
|
| 605 |
|
|
}
|
| 606 |
|
|
}
|
| 607 |
|
|
else
|
| 608 |
|
|
GenerateTriadic(op_bltu,0,ap2,ap1,make_clabel(label));
|
| 609 |
|
|
break;
|
| 610 |
|
|
case op_bgeu:
|
| 611 |
|
|
if (ap2->mode==am_imm) {
|
| 612 |
|
|
if (ap2->offset->i == 0) {
|
| 613 |
|
|
// This branch is always true
|
| 614 |
|
|
error(ERR_UBGEQ);
|
| 615 |
|
|
GenerateTriadic(op_bgeu,0,ap1,makereg(0),make_clabel(label));
|
| 616 |
|
|
}
|
| 617 |
|
|
else {
|
| 618 |
|
|
ap3 = GetTempRegister();
|
| 619 |
|
|
GenerateTriadic(op_sltu, 0, ap3, ap1, ap2);
|
| 620 |
|
|
ReleaseTempRegister(ap3);
|
| 621 |
|
|
GenerateTriadic(op_beq,0,ap3,makereg(0),make_clabel(label));
|
| 622 |
|
|
}
|
| 623 |
|
|
}
|
| 624 |
|
|
else
|
| 625 |
|
|
GenerateTriadic(op_bgeu,0,ap1,ap2,make_clabel(label));
|
| 626 |
|
|
break;
|
| 627 |
|
|
}
|
| 628 |
|
|
//GenerateTriadic(op,sz,ap1,ap2,make_clabel(label));
|
| 629 |
|
|
}
|
| 630 |
|
|
ReleaseTempReg(ap2);
|
| 631 |
|
|
ReleaseTempReg(ap1);
|
| 632 |
|
|
}
|
| 633 |
|
|
|
| 634 |
|
|
|
| 635 |
|
|
static void SaveRegisterSet(SYM *sym)
|
| 636 |
|
|
{
|
| 637 |
|
|
int nn, mm;
|
| 638 |
|
|
|
| 639 |
|
|
if (!cpu.SupportsPush) {
|
| 640 |
|
|
mm = sym->tp->GetBtp()->type!=bt_void ? 29 : 30;
|
| 641 |
|
|
GenerateTriadic(op_sub,0,makereg(regSP),makereg(regSP),make_immed(mm*sizeOfWord));
|
| 642 |
|
|
mm = 0;
|
| 643 |
|
|
for (nn = 1 + (sym->tp->GetBtp()->type!=bt_void ? 1 : 0); nn < 31; nn++) {
|
| 644 |
|
|
GenerateDiadic(op_sw,0,makereg(nn),make_indexed(mm,regSP));
|
| 645 |
|
|
mm += sizeOfWord;
|
| 646 |
|
|
}
|
| 647 |
|
|
}
|
| 648 |
|
|
else
|
| 649 |
|
|
for (nn = 1 + (sym->tp->GetBtp()->type!=bt_void ? 1 : 0); nn < 31; nn++)
|
| 650 |
|
|
GenerateMonadic(op_push,0,makereg(nn));
|
| 651 |
|
|
}
|
| 652 |
|
|
|
| 653 |
|
|
static void RestoreRegisterSet(SYM * sym)
|
| 654 |
|
|
{
|
| 655 |
|
|
int nn, mm;
|
| 656 |
|
|
|
| 657 |
|
|
if (!cpu.SupportsPop) {
|
| 658 |
|
|
mm = 0;
|
| 659 |
|
|
for (nn = 1 + (sym->tp->GetBtp()->type!=bt_void ? 1 : 0); nn < 31; nn++) {
|
| 660 |
|
|
GenerateDiadic(op_lw,0,makereg(nn),make_indexed(mm,regSP));
|
| 661 |
|
|
mm += sizeOfWord;
|
| 662 |
|
|
}
|
| 663 |
|
|
mm = sym->tp->GetBtp()->type!=bt_void ? 29 : 30;
|
| 664 |
|
|
GenerateTriadic(op_add,0,makereg(regSP),makereg(regSP),make_immed(mm*sizeOfWord));
|
| 665 |
|
|
}
|
| 666 |
|
|
else
|
| 667 |
|
|
for (nn = 1 + (sym->tp->GetBtp()->type!=bt_void ? 1 : 0); nn < 31; nn++)
|
| 668 |
|
|
GenerateMonadic(op_pop,0,makereg(nn));
|
| 669 |
|
|
}
|
| 670 |
|
|
|
| 671 |
|
|
|
| 672 |
|
|
// Push temporaries on the stack.
|
| 673 |
|
|
|
| 674 |
|
|
void SaveRegisterVars(int64_t mask, int64_t rmask)
|
| 675 |
|
|
{
|
| 676 |
|
|
int cnt;
|
| 677 |
|
|
int nn;
|
| 678 |
|
|
|
| 679 |
|
|
if( mask != 0 ) {
|
| 680 |
|
|
cnt = 0;
|
| 681 |
|
|
GenerateTriadic(op_sub,0,makereg(regSP),makereg(regSP),make_immed(popcnt(mask)*8));
|
| 682 |
|
|
for (nn = 0; nn < 64; nn++) {
|
| 683 |
|
|
if (rmask & (0x8000000000000000ULL >> nn)) {
|
| 684 |
|
|
GenerateDiadic(op_sw,0,makereg(nn),make_indexed(cnt,regSP));
|
| 685 |
|
|
cnt+=sizeOfWord;
|
| 686 |
|
|
}
|
| 687 |
|
|
}
|
| 688 |
|
|
}
|
| 689 |
|
|
}
|
| 690 |
|
|
|
| 691 |
|
|
void SaveFPRegisterVars(int64_t mask, int64_t rmask)
|
| 692 |
|
|
{
|
| 693 |
|
|
int cnt;
|
| 694 |
|
|
int nn;
|
| 695 |
|
|
|
| 696 |
|
|
if( mask != 0 ) {
|
| 697 |
|
|
cnt = 0;
|
| 698 |
|
|
GenerateTriadic(op_sub,0,makereg(regSP),makereg(regSP),make_immed(popcnt(mask)*8));
|
| 699 |
|
|
for (nn = 0; nn < 64; nn++) {
|
| 700 |
|
|
if (rmask & (0x8000000000000000ULL >> nn)) {
|
| 701 |
|
|
GenerateDiadic(op_sf,'d',makefpreg(nn),make_indexed(cnt,regSP));
|
| 702 |
|
|
cnt+=sizeOfWord;
|
| 703 |
|
|
}
|
| 704 |
|
|
}
|
| 705 |
|
|
}
|
| 706 |
|
|
}
|
| 707 |
|
|
|
| 708 |
|
|
// Restore registers used as register variables.
|
| 709 |
|
|
|
| 710 |
|
|
static void RestoreRegisterVars()
|
| 711 |
|
|
{
|
| 712 |
|
|
int cnt2, cnt;
|
| 713 |
|
|
int nn;
|
| 714 |
|
|
|
| 715 |
|
|
if( save_mask != 0 ) {
|
| 716 |
|
|
cnt2 = cnt = popcnt(save_mask)*sizeOfWord;
|
| 717 |
|
|
cnt = 0;
|
| 718 |
|
|
for (nn = 0; nn < 64; nn++) {
|
| 719 |
|
|
if (save_mask & (1LL << nn)) {
|
| 720 |
|
|
GenerateDiadic(op_lw,0,makereg(nn),make_indexed(cnt,regSP));
|
| 721 |
|
|
cnt += sizeOfWord;
|
| 722 |
|
|
}
|
| 723 |
|
|
}
|
| 724 |
|
|
GenerateTriadic(op_add,0,makereg(regSP),makereg(regSP),make_immed(cnt2));
|
| 725 |
|
|
}
|
| 726 |
|
|
}
|
| 727 |
|
|
|
| 728 |
|
|
static void RestoreFPRegisterVars()
|
| 729 |
|
|
{
|
| 730 |
|
|
int cnt2, cnt;
|
| 731 |
|
|
int nn;
|
| 732 |
|
|
|
| 733 |
|
|
if( fpsave_mask != 0 ) {
|
| 734 |
|
|
cnt2 = cnt = popcnt(fpsave_mask)*sizeOfWord;
|
| 735 |
|
|
cnt = 0;
|
| 736 |
|
|
for (nn = 0; nn < 64; nn++) {
|
| 737 |
|
|
if (fpsave_mask & (1LL << nn)) {
|
| 738 |
|
|
GenerateDiadic(op_lf,'d',makefpreg(nn),make_indexed(cnt,regSP));
|
| 739 |
|
|
cnt += sizeOfWord;
|
| 740 |
|
|
}
|
| 741 |
|
|
}
|
| 742 |
|
|
GenerateTriadic(op_add,0,makereg(regSP),makereg(regSP),make_immed(cnt2));
|
| 743 |
|
|
}
|
| 744 |
|
|
}
|
| 745 |
|
|
|
| 746 |
|
|
static int round4(int n)
|
| 747 |
|
|
{
|
| 748 |
|
|
while(n & 3) n++;
|
| 749 |
|
|
return (n);
|
| 750 |
|
|
};
|
| 751 |
|
|
|
| 752 |
|
|
static void SaveTemporaries(Function *sym, int *sp, int *fsp)
|
| 753 |
|
|
{
|
| 754 |
|
|
if (sym) {
|
| 755 |
|
|
if (sym->UsesTemps) {
|
| 756 |
|
|
*sp = TempInvalidate(fsp);
|
| 757 |
|
|
//*fsp = TempFPInvalidate();
|
| 758 |
|
|
}
|
| 759 |
|
|
}
|
| 760 |
|
|
else {
|
| 761 |
|
|
*sp = TempInvalidate(fsp);
|
| 762 |
|
|
//*fsp = TempFPInvalidate();
|
| 763 |
|
|
}
|
| 764 |
|
|
}
|
| 765 |
|
|
|
| 766 |
|
|
static void RestoreTemporaries(Function *sym, int sp, int fsp)
|
| 767 |
|
|
{
|
| 768 |
|
|
if (sym) {
|
| 769 |
|
|
if (sym->UsesTemps) {
|
| 770 |
|
|
//TempFPRevalidate(fsp);
|
| 771 |
|
|
TempRevalidate(sp,fsp);
|
| 772 |
|
|
}
|
| 773 |
|
|
}
|
| 774 |
|
|
else {
|
| 775 |
|
|
//TempFPRevalidate(fsp);
|
| 776 |
|
|
TempRevalidate(sp,fsp);
|
| 777 |
|
|
}
|
| 778 |
|
|
}
|
| 779 |
|
|
|
| 780 |
|
|
// push the operand expression onto the stack.
|
| 781 |
|
|
// Structure variables are represented as an address in a register and arrive
|
| 782 |
|
|
// here as autocon nodes if on the stack. If the variable size is greater than
|
| 783 |
|
|
// 8 we assume a structure variable and we assume we have the address in a reg.
|
| 784 |
|
|
// Returns: number of stack words pushed.
|
| 785 |
|
|
//
|
| 786 |
|
|
static int GeneratePushParameter(ENODE *ep, int regno, int stkoffs)
|
| 787 |
|
|
{
|
| 788 |
|
|
Operand *ap, *ap3;
|
| 789 |
|
|
int nn = 0;
|
| 790 |
|
|
int sz;
|
| 791 |
|
|
|
| 792 |
|
|
switch(ep->etype) {
|
| 793 |
|
|
case bt_quad: sz = sizeOfFPD; break;
|
| 794 |
|
|
case bt_triple: sz = sizeOfFPT; break;
|
| 795 |
|
|
case bt_double: sz = sizeOfFPD; break;
|
| 796 |
|
|
case bt_float: sz = sizeOfFPD; break;
|
| 797 |
|
|
default: sz = sizeOfWord; break;
|
| 798 |
|
|
}
|
| 799 |
|
|
if (ep->tp) {
|
| 800 |
|
|
if (ep->tp->IsFloatType())
|
| 801 |
|
|
ap = GenerateExpression(ep,F_REG,sizeOfFP);
|
| 802 |
|
|
else
|
| 803 |
|
|
ap = GenerateExpression(ep,F_REG|F_IMMED,sizeOfWord);
|
| 804 |
|
|
}
|
| 805 |
|
|
else if (ep->etype==bt_quad)
|
| 806 |
|
|
ap = GenerateExpression(ep,F_REG,sz);
|
| 807 |
|
|
else if (ep->etype==bt_double)
|
| 808 |
|
|
ap = GenerateExpression(ep,F_REG,sz);
|
| 809 |
|
|
else if (ep->etype==bt_triple)
|
| 810 |
|
|
ap = GenerateExpression(ep,F_REG,sz);
|
| 811 |
|
|
else if (ep->etype==bt_float)
|
| 812 |
|
|
ap = GenerateExpression(ep,F_REG,sz);
|
| 813 |
|
|
else
|
| 814 |
|
|
ap = GenerateExpression(ep,F_REG|F_IMMED,sz);
|
| 815 |
|
|
switch(ap->mode) {
|
| 816 |
|
|
case am_reg:
|
| 817 |
|
|
case am_fpreg:
|
| 818 |
|
|
case am_imm:
|
| 819 |
|
|
/*
|
| 820 |
|
|
nn = round8(ep->esize);
|
| 821 |
|
|
if (nn > 8) {// && (ep->tp->type==bt_struct || ep->tp->type==bt_union)) { // structure or array ?
|
| 822 |
|
|
ap2 = GetTempRegister();
|
| 823 |
|
|
GenerateTriadic(op_subui,0,makereg(regSP),makereg(regSP),make_immed(nn));
|
| 824 |
|
|
GenerateDiadic(op_mov, 0, ap2, makereg(regSP));
|
| 825 |
|
|
GenerateMonadic(op_push,0,make_immed(ep->esize));
|
| 826 |
|
|
GenerateMonadic(op_push,0,ap);
|
| 827 |
|
|
GenerateMonadic(op_push,0,ap2);
|
| 828 |
|
|
GenerateMonadic(op_bsr,0,make_string("memcpy_"));
|
| 829 |
|
|
GenerateTriadic(op_addui,0,makereg(regSP),makereg(regSP),make_immed(24));
|
| 830 |
|
|
GenerateMonadic(op_push,0,ap2);
|
| 831 |
|
|
ReleaseTempReg(ap2);
|
| 832 |
|
|
nn = nn >> 3;
|
| 833 |
|
|
}
|
| 834 |
|
|
else {
|
| 835 |
|
|
*/
|
| 836 |
|
|
if (regno) {
|
| 837 |
|
|
GenerateMonadic(op_hint,0,make_immed(1));
|
| 838 |
|
|
if (ap->mode==am_imm) {
|
| 839 |
|
|
GenerateDiadic(op_ldi,0,makereg(regno & 0x7fff), ap);
|
| 840 |
|
|
if (regno & 0x8000) {
|
| 841 |
|
|
GenerateTriadic(op_sub,0,makereg(regSP),makereg(regSP),make_immed(sizeOfWord));
|
| 842 |
|
|
nn = 1;
|
| 843 |
|
|
}
|
| 844 |
|
|
}
|
| 845 |
|
|
else if (ap->mode==am_fpreg) {
|
| 846 |
|
|
GenerateDiadic(op_mov,0,makefpreg(regno & 0x7fff), ap);
|
| 847 |
|
|
if (regno & 0x8000) {
|
| 848 |
|
|
GenerateTriadic(op_sub,0,makereg(regSP),makereg(regSP),make_immed(sz));
|
| 849 |
|
|
nn = sz/sizeOfWord;
|
| 850 |
|
|
}
|
| 851 |
|
|
}
|
| 852 |
|
|
else {
|
| 853 |
|
|
//ap->preg = regno & 0x7fff;
|
| 854 |
|
|
GenerateDiadic(op_mov,0,makereg(regno & 0x7fff), ap);
|
| 855 |
|
|
if (regno & 0x8000) {
|
| 856 |
|
|
GenerateTriadic(op_sub,0,makereg(regSP),makereg(regSP),make_immed(sizeOfWord));
|
| 857 |
|
|
nn = 1;
|
| 858 |
|
|
}
|
| 859 |
|
|
}
|
| 860 |
|
|
}
|
| 861 |
|
|
else {
|
| 862 |
|
|
if (cpu.SupportsPush) {
|
| 863 |
|
|
if (ap->mode==am_imm) { // must have been a zero
|
| 864 |
|
|
if (ap->offset->i==0)
|
| 865 |
|
|
GenerateMonadic(op_push,0,makereg(0));
|
| 866 |
|
|
else {
|
| 867 |
|
|
ap3 = GetTempRegister();
|
| 868 |
|
|
GenerateDiadic(op_ldi,0,ap3,ap);
|
| 869 |
|
|
GenerateMonadic(op_push,0,ap3);
|
| 870 |
|
|
ReleaseTempReg(ap3);
|
| 871 |
|
|
}
|
| 872 |
|
|
nn = 1;
|
| 873 |
|
|
}
|
| 874 |
|
|
else {
|
| 875 |
|
|
if (ap->type=stddouble.GetIndex()) {
|
| 876 |
|
|
GenerateMonadic(op_push,ap->FloatSize,ap);
|
| 877 |
|
|
nn = sz/sizeOfWord;
|
| 878 |
|
|
}
|
| 879 |
|
|
else {
|
| 880 |
|
|
GenerateMonadic(op_push,0,ap);
|
| 881 |
|
|
nn = 1;
|
| 882 |
|
|
}
|
| 883 |
|
|
}
|
| 884 |
|
|
}
|
| 885 |
|
|
else {
|
| 886 |
|
|
if (ap->mode==am_imm) { // must have been a zero
|
| 887 |
|
|
ap3 = nullptr;
|
| 888 |
|
|
if (ap->offset->i!=0) {
|
| 889 |
|
|
ap3 = GetTempRegister();
|
| 890 |
|
|
GenerateDiadic(op_ldi,0,ap3,ap);
|
| 891 |
|
|
GenerateDiadic(op_sw,0,ap3,make_indexed(stkoffs,regSP));
|
| 892 |
|
|
ReleaseTempReg(ap3);
|
| 893 |
|
|
}
|
| 894 |
|
|
else
|
| 895 |
|
|
GenerateDiadic(op_sw,0,makereg(0),make_indexed(stkoffs,regSP));
|
| 896 |
|
|
nn = 1;
|
| 897 |
|
|
}
|
| 898 |
|
|
else {
|
| 899 |
|
|
if (ap->type==stddouble.GetIndex() || ap->mode==am_fpreg) {
|
| 900 |
|
|
GenerateDiadic(op_sf,'d',ap,make_indexed(stkoffs,regSP));
|
| 901 |
|
|
nn = sz/sizeOfWord;
|
| 902 |
|
|
}
|
| 903 |
|
|
else {
|
| 904 |
|
|
GenerateDiadic(op_sw,0,ap,make_indexed(stkoffs,regSP));
|
| 905 |
|
|
nn = 1;
|
| 906 |
|
|
}
|
| 907 |
|
|
}
|
| 908 |
|
|
}
|
| 909 |
|
|
}
|
| 910 |
|
|
// }
|
| 911 |
|
|
break;
|
| 912 |
|
|
}
|
| 913 |
|
|
// ReleaseTempReg(ap);
|
| 914 |
|
|
return nn;
|
| 915 |
|
|
}
|
| 916 |
|
|
|
| 917 |
|
|
// Store entire argument list onto stack
|
| 918 |
|
|
//
|
| 919 |
|
|
static int GenerateStoreArgumentList(Function *sym, ENODE *plist)
|
| 920 |
|
|
{
|
| 921 |
|
|
TypeArray *ta = nullptr;
|
| 922 |
|
|
int i,sum;
|
| 923 |
|
|
OCODE *ip;
|
| 924 |
|
|
ENODE *p;
|
| 925 |
|
|
ENODE *pl[100];
|
| 926 |
|
|
int nn;
|
| 927 |
|
|
|
| 928 |
|
|
sum = 0;
|
| 929 |
|
|
if (sym)
|
| 930 |
|
|
ta = sym->GetProtoTypes();
|
| 931 |
|
|
|
| 932 |
|
|
ip = peep_tail;
|
| 933 |
|
|
GenerateTriadic(op_sub,0,makereg(regSP),makereg(regSP),make_immed(0));
|
| 934 |
|
|
// Capture the parameter list. It is needed in the reverse order.
|
| 935 |
|
|
for (nn = 0, p = plist; p != NULL; p = p->p[1], nn++) {
|
| 936 |
|
|
pl[nn] = p->p[0];
|
| 937 |
|
|
}
|
| 938 |
|
|
for(--nn, i = 0; nn >= 0; --nn,i++ )
|
| 939 |
|
|
{
|
| 940 |
|
|
// sum += GeneratePushParameter(pl[nn],ta ? ta->preg[ta->length - i - 1] : 0,sum*8);
|
| 941 |
|
|
sum += GeneratePushParameter(pl[nn],ta ? ta->preg[i] : 0,sum*8);
|
| 942 |
|
|
// plist = plist->p[1];
|
| 943 |
|
|
}
|
| 944 |
|
|
if (sum==0)
|
| 945 |
|
|
MarkRemove(ip->fwd);
|
| 946 |
|
|
else
|
| 947 |
|
|
ip->fwd->oper3 = make_immed(sum*sizeOfWord);
|
| 948 |
|
|
if (ta)
|
| 949 |
|
|
delete ta;
|
| 950 |
|
|
return sum;
|
| 951 |
|
|
}
|
| 952 |
|
|
|
| 953 |
|
|
Operand *GenerateFunctionCall(ENODE *node, int flags)
|
| 954 |
|
|
{
|
| 955 |
|
|
Operand *ap;
|
| 956 |
|
|
Function *sym;
|
| 957 |
|
|
Function *o_fn;
|
| 958 |
|
|
SYM *s;
|
| 959 |
|
|
int i;
|
| 960 |
|
|
int sp = 0;
|
| 961 |
|
|
int fsp = 0;
|
| 962 |
|
|
int ps;
|
| 963 |
|
|
TypeArray *ta = nullptr;
|
| 964 |
|
|
int64_t mask,fmask;
|
| 965 |
|
|
CSETable *csetbl;
|
| 966 |
|
|
|
| 967 |
|
|
sym = nullptr;
|
| 968 |
|
|
|
| 969 |
|
|
// Call the function
|
| 970 |
|
|
if( node->p[0]->nodetype == en_nacon || node->p[0]->nodetype == en_cnacon ) {
|
| 971 |
|
|
s = gsearch(*node->p[0]->sp);
|
| 972 |
|
|
sym = s->fi;
|
| 973 |
|
|
i = 0;
|
| 974 |
|
|
sym->SaveTemporaries(&sp, &fsp);
|
| 975 |
|
|
/*
|
| 976 |
|
|
if ((sym->tp->GetBtp()->type==bt_struct || sym->tp->GetBtp()->type==bt_union) && sym->tp->GetBtp()->size > 8) {
|
| 977 |
|
|
nn = tmpAlloc(sym->tp->GetBtp()->size) + lc_auto + round8(sym->tp->GetBtp()->size);
|
| 978 |
|
|
GenerateMonadic(op_pea,0,make_indexed(-nn,regFP));
|
| 979 |
|
|
i = 1;
|
| 980 |
|
|
}
|
| 981 |
|
|
*/
|
| 982 |
|
|
if (currentFn->HasRegisterParameters())
|
| 983 |
|
|
sym->SaveRegisterArguments();
|
| 984 |
|
|
i = i + GenerateStoreArgumentList(sym,node->p[1]);
|
| 985 |
|
|
// ReleaseTempRegister(ap);
|
| 986 |
|
|
if (sym && sym->IsInline) {
|
| 987 |
|
|
o_fn = currentFn;
|
| 988 |
|
|
mask = save_mask;
|
| 989 |
|
|
fmask = fpsave_mask;
|
| 990 |
|
|
currentFn = sym;
|
| 991 |
|
|
ps = pass;
|
| 992 |
|
|
sym->Gen();
|
| 993 |
|
|
pass = ps;
|
| 994 |
|
|
currentFn = o_fn;
|
| 995 |
|
|
fpsave_mask = fmask;
|
| 996 |
|
|
save_mask = mask;
|
| 997 |
|
|
}
|
| 998 |
|
|
else {
|
| 999 |
|
|
GenerateMonadic(op_call,0,make_offset(node->p[0]));
|
| 1000 |
|
|
GenerateMonadic(op_bex,0,make_label(throwlab));
|
| 1001 |
|
|
}
|
| 1002 |
|
|
}
|
| 1003 |
|
|
else
|
| 1004 |
|
|
{
|
| 1005 |
|
|
i = 0;
|
| 1006 |
|
|
/*
|
| 1007 |
|
|
if ((node->p[0]->tp->GetBtp()->type==bt_struct || node->p[0]->tp->GetBtp()->type==bt_union) && node->p[0]->tp->GetBtp()->size > 8) {
|
| 1008 |
|
|
nn = tmpAlloc(node->p[0]->tp->GetBtp()->size) + lc_auto + round8(node->p[0]->tp->GetBtp()->size);
|
| 1009 |
|
|
GenerateMonadic(op_pea,0,make_indexed(-nn,regFP));
|
| 1010 |
|
|
i = 1;
|
| 1011 |
|
|
}
|
| 1012 |
|
|
*/
|
| 1013 |
|
|
ap = GenerateExpression(node->p[0],F_REG,sizeOfWord);
|
| 1014 |
|
|
if (ap->offset)
|
| 1015 |
|
|
sym = ap->offset->sym->fi;
|
| 1016 |
|
|
sym->SaveTemporaries(&sp, &fsp);
|
| 1017 |
|
|
if (currentFn->HasRegisterParameters())
|
| 1018 |
|
|
sym->SaveRegisterArguments();
|
| 1019 |
|
|
i = i + GenerateStoreArgumentList(sym,node->p[1]);
|
| 1020 |
|
|
ap->mode = am_ind;
|
| 1021 |
|
|
ap->offset = 0;
|
| 1022 |
|
|
if (sym && sym->IsInline) {
|
| 1023 |
|
|
o_fn = currentFn;
|
| 1024 |
|
|
mask = save_mask;
|
| 1025 |
|
|
fmask = fpsave_mask;
|
| 1026 |
|
|
currentFn = sym;
|
| 1027 |
|
|
ps = pass;
|
| 1028 |
|
|
sym->Gen();
|
| 1029 |
|
|
pass = ps;
|
| 1030 |
|
|
currentFn = o_fn;
|
| 1031 |
|
|
fpsave_mask = fmask;
|
| 1032 |
|
|
save_mask = mask;
|
| 1033 |
|
|
}
|
| 1034 |
|
|
else {
|
| 1035 |
|
|
GenerateMonadic(op_call,0,ap);
|
| 1036 |
|
|
GenerateMonadic(op_bex,0,make_label(throwlab));
|
| 1037 |
|
|
}
|
| 1038 |
|
|
ReleaseTempRegister(ap);
|
| 1039 |
|
|
}
|
| 1040 |
|
|
// Pop parameters off the stack
|
| 1041 |
|
|
if (i!=0) {
|
| 1042 |
|
|
if (sym) {
|
| 1043 |
|
|
if (!sym->IsPascal)
|
| 1044 |
|
|
GenerateTriadic(op_add,0,makereg(regSP),makereg(regSP),make_immed(i * sizeOfWord));
|
| 1045 |
|
|
}
|
| 1046 |
|
|
else
|
| 1047 |
|
|
GenerateTriadic(op_add,0,makereg(regSP),makereg(regSP),make_immed(i * sizeOfWord));
|
| 1048 |
|
|
}
|
| 1049 |
|
|
if (currentFn->HasRegisterParameters())
|
| 1050 |
|
|
sym->RestoreRegisterArguments();
|
| 1051 |
|
|
sym->RestoreTemporaries(sp, fsp);
|
| 1052 |
|
|
/*
|
| 1053 |
|
|
if (sym) {
|
| 1054 |
|
|
if (sym->tp->type==bt_double)
|
| 1055 |
|
|
result = GetTempFPRegister();
|
| 1056 |
|
|
else
|
| 1057 |
|
|
result = GetTempRegister();
|
| 1058 |
|
|
}
|
| 1059 |
|
|
else {
|
| 1060 |
|
|
if (node->etype==bt_double)
|
| 1061 |
|
|
result = GetTempFPRegister();
|
| 1062 |
|
|
else
|
| 1063 |
|
|
result = GetTempRegister();
|
| 1064 |
|
|
}
|
| 1065 |
|
|
*/
|
| 1066 |
|
|
if (sym
|
| 1067 |
|
|
&& sym->sym
|
| 1068 |
|
|
&& sym->sym->tp
|
| 1069 |
|
|
&& sym->sym->tp->GetBtp()
|
| 1070 |
|
|
&& sym->sym->tp->GetBtp()->IsFloatType()) {
|
| 1071 |
|
|
return (makefpreg(1));
|
| 1072 |
|
|
}
|
| 1073 |
|
|
if (sym
|
| 1074 |
|
|
&& sym->sym
|
| 1075 |
|
|
&& sym->sym->tp
|
| 1076 |
|
|
&& sym->sym->tp->GetBtp()
|
| 1077 |
|
|
&& sym->sym->tp->GetBtp()->IsVectorType())
|
| 1078 |
|
|
return (makevreg(1));
|
| 1079 |
|
|
ap = makereg(1);
|
| 1080 |
|
|
if (sym
|
| 1081 |
|
|
&& sym->sym
|
| 1082 |
|
|
&& sym->sym->tp
|
| 1083 |
|
|
&& sym->sym->tp->GetBtp()
|
| 1084 |
|
|
)
|
| 1085 |
|
|
ap->isPtr = sym->sym->tp->GetBtp()->type == bt_pointer;
|
| 1086 |
|
|
return (ap);
|
| 1087 |
|
|
/*
|
| 1088 |
|
|
else {
|
| 1089 |
|
|
if( result->preg != 1 || (flags & F_REG) == 0 ) {
|
| 1090 |
|
|
if (sym) {
|
| 1091 |
|
|
if (sym->tp->GetBtp()->type==bt_void)
|
| 1092 |
|
|
;
|
| 1093 |
|
|
else {
|
| 1094 |
|
|
if (sym->tp->type==bt_double)
|
| 1095 |
|
|
GenerateDiadic(op_fdmov,0,result,makefpreg(1));
|
| 1096 |
|
|
else
|
| 1097 |
|
|
GenerateDiadic(op_mov,0,result,makereg(1));
|
| 1098 |
|
|
}
|
| 1099 |
|
|
}
|
| 1100 |
|
|
else {
|
| 1101 |
|
|
if (node->etype==bt_double)
|
| 1102 |
|
|
GenerateDiadic(op_fdmov,0,result,makereg(1));
|
| 1103 |
|
|
else
|
| 1104 |
|
|
GenerateDiadic(op_mov,0,result,makereg(1));
|
| 1105 |
|
|
}
|
| 1106 |
|
|
}
|
| 1107 |
|
|
}
|
| 1108 |
|
|
return result;
|
| 1109 |
|
|
*/
|
| 1110 |
|
|
}
|
| 1111 |
|
|
|
| 1112 |
|
|
void GenLdi(Operand *ap1, Operand *ap2)
|
| 1113 |
|
|
{
|
| 1114 |
|
|
GenerateDiadic(op_ldi,0,ap1,ap2);
|
| 1115 |
|
|
return;
|
| 1116 |
|
|
}
|
| 1117 |
|
|
|
