Home Original page

[PATCH] [MIPS] Loongson EXT fixes

Paul Hua paul.hua.gm@gmail.com
Thu Feb 6 06:45:00 GMT 2020 
> +++ b/gas/doc/as.texi
> @@ -1644,7 +1644,7 @@ This tells the assembler to accept Loongson EXT instructions.
>  @item -mloongson-ext2
>  @itemx -mno-loongson-ext2
>  Generate code for the Loongson EXTensions R2 (EXT2) instructions.
> -This option implies @samp{-mloongson-ext}.
> +This option implies @samp{-mloongson-ext2}.
>  This tells the assembler to accept Loongson EXT2 instructions.
>  @samp{-mno-loongson-ext2} turns off this option.
>

It is ok, the -mloongson-ext2 will trun on -mloongson-ext.

> diff --git a/opcodes/mips-dis.c b/opcodes/mips-dis.c
> index 755bbe294b..18dde79294 100644
> --- a/opcodes/mips-dis.c
> +++ b/opcodes/mips-dis.c
> @@ -824,6 +824,14 @@ mips_convert_abiflags_ases (unsigned long afl_ases)
>      opcode_ases |= ASE_DSPR3;
>    if (afl_ases & AFL_ASE_MIPS16E2)
>      opcode_ases |= ASE_MIPS16E2;
> +  if (afl_ases & AFL_ASE_LOONGSON_MMI)
> +    opcode_ases |= ASE_LOONGSON_MMI;
> +  if (afl_ases & AFL_ASE_LOONGSON_CAM)
> +    opcode_ases |= ASE_LOONGSON_CAM;
> +  if (afl_ases & AFL_ASE_LOONGSON_EXT)
> +    opcode_ases |= ASE_LOONGSON_EXT;
> +  if (afl_ases & AFL_ASE_LOONGSON_EXT2)
> +    opcode_ases |= ASE_LOONGSON_EXT2;
>    return opcode_ases;
>  }

Thanks for catch this.

> diff --git a/opcodes/mips-opc.c b/opcodes/mips-opc.c
> index 5270aeefa8..625b745edc 100644
> --- a/opcodes/mips-opc.c
> +++ b/opcodes/mips-opc.c
> @@ -526,6 +526,8 @@ const struct mips_opcode mips_builtin_opcodes[] =
>  {"ctz",                        "d,s",          0x70000022, 0xfc1f07ff, WR_1|RD_2,              0,              0,              LEXT2,  0 },
>  {"dcto",               "d,s",          0x700000e2, 0xfc1f07ff, WR_1|RD_2,              0,              0,              LEXT2,  0 },
>  {"dctz",               "d,s",          0x700000a2, 0xfc1f07ff, WR_1|RD_2,              0,              0,              LEXT2,  0 },
> +{"gsandn",             "d,s,t",        0x70000483, 0xfc0007ff, WR_1|RD_2|RD_3,         0,              0,              LEXT2,  0 },
> +{"gsorn",              "d,s,t",        0x70000486, 0xfc0007ff, WR_1|RD_2|RD_3,         0,              0,              LEXT2,  0 },
>

The gsandn and gsorn belong to upcomming loongson-ext3.
More information about the Binutils mailing list