On Wed, 2023-12-27 at 16:46 +0800, Lulu Cheng wrote:
> +(define_insn "movdi_pcrel64"
> + [(set (match_operand:DI 0 "register_operand" "=&r")
> + (match_operand:DI 1 "symbolic_pcrel64_operand"))
> + (unspec:DI [(const_int 0)]
> + UNSPEC_MOV_PCREL64)
> + (use (reg:DI T3_REGNUM))
> + (clobber (reg:DI T3_REGNUM))]
It's better not to hard code $t3 here. We can write
[(set (match_operand:DI 0 "register_operand" "=r")
(match_operand:DI 1 "symbolic_pcrel64_operand"))
(clobber (match_operand:DI 2 "register_operand "=&r"))]
And use
gen_movdi_pcrel64 (operands[0], operands[1], gen_reg_rtx(DImode))
in expand.
> + "TARGET_64BIT"
> + "la.local %0,$r15,%1"
> + [(set_attr "mode" "DI")
> + (set_attr "length" "5")])
--
Xi Ruoyao <xry...@xry111.site>
School of Aerospace Science and Technology, Xidian University
