在 2023-08-31四的 15:57 +0800，Xi Ruoyao写道：
> On Thu, 2023-08-31 at 15:02 +0800, chenxiaolong wrote:
> > +;; Implement __builtin_copysignf128 function.
> > +
> > +(define_insn_and_split "copysigntf3"
> > + [(set (match_operand:TF 0 "register_operand" "=&r")
> > + (unspec:TF [(match_operand:TF 1 "register_operand" "r")
> > + (match_operand:TF 2 "register_operand" "r")]
> > + UNSPEC_COPYSIGNF128))]
> > + "TARGET_64BIT"
> > + "#"
> > + "reload_completed"
> > + [(const_int 0)]
> > +{
> > + rtx op0_lo = gen_rtx_REG (DImode,REGNO (operands[0]) + 0);
> > + rtx op0_hi = gen_rtx_REG (DImode,REGNO (operands[0]) + 1);
> > + rtx op1_lo = gen_rtx_REG (DImode,REGNO (operands[1]) + 0);
> > + rtx op1_hi = gen_rtx_REG (DImode,REGNO (operands[1]) + 1);
> > + rtx op2_hi = gen_rtx_REG (DImode,REGNO (operands[2]) + 1);
> > +
> > + if (REGNO (operands[1]) == REGNO (operands[2]))
> > + {
> > + loongarch_emit_move (operands[0], operands[1]);
> > + DONE;
> > + }
> > + else
> > + {
> > + loongarch_emit_move (op0_hi, op2_hi);
> > + loongarch_emit_move (op0_lo, op1_lo);
> > + emit_insn (gen_insvdi (op0_hi, GEN_INT (63), GEN_INT (0),
> > op1_hi));
> > + DONE;
> > + }
> > +})
>
> Please remove this part too, for now. I'm trying to figure out a
> more
> generic fix, and if I fail we can add this part later.
>
Ok, then wait for your modified message, and then I will submit the
newly modified code according to the content.
