On Fri, 2024-01-26 at 15:37 +0800, Lulu Cheng wrote:
> +;; Use two registers to get the global symbol address from the got table.
> +;; la.global rd, rt, sym
> +
> +(define_insn_and_split "movdi_symbolic_off64"
> + [(set (match_operand:DI 0 "register_operand" "=r,r")
> + (match_operand:DI 1 "symbolic_off64_or_reg_operand" "Yd,r"))
> + (unspec:DI [(const_int 0)]
> + UNSPEC_LOAD_SYMBOL_OFFSET64)
> + (clobber (match_operand:DI 2 "register_operand" "=&r,r"))]
> + "TARGET_64BIT && TARGET_CMODEL_EXTREME"
> +{
> + if (which_alternative == 1)
> + return "#";
> +
> + enum loongarch_symbol_type symbol_type;
> + gcc_assert (loongarch_symbolic_constant_p (operands[1], &symbol_type));
> +
> + switch (symbol_type)
> + {
> + case SYMBOL_PCREL64:
> + return "la.local\t%0,%2,%1";
> + case SYMBOL_GOT_DISP:
> + return "la.global\t%0,%2,%1";
> + case SYMBOL_TLS_IE:
> + return "la.tls.ie\t%0,%2,%1";
> + case SYMBOL_TLSGD:
> + return "la.tls.gd\t%0,%2,%1";
> + case SYMBOL_TLSLDM:
> + return "la.tls.ld\t%0,%2,%1";
> +
> + default:
> + gcc_unreachable ();
> + }
> +}
> + "&& REG_P (operands[1]) && find_reg_note (insn, REG_UNUSED, operands[2]) !=
> 0"
> + [(set (match_dup 0) (match_dup 1))]
> + ""
> + [(set_attr "mode" "DI")
> + (set_attr "length" "5")])
Should be 20, in bytes.
--
Xi Ruoyao <xry...@xry111.site>
School of Aerospace Science and Technology, Xidian University
