[PATCH v3 1/6, Committed] [MIPS] Split Loongson (MMI) from loongson3a

[Paul Hua]

On Wed, Nov 7, 2018 at 5:12 PM Paul Hua <paul.hua.gm@gmail.com> wrote:
>
> Hi, Matthew:
>
> I committed the patch. Thanks for your review.
>

After committed this patch some test failure under
with-arch=mips64r2(i only test under -with-arch=loongson3a).

  664 FAIL: gcc.target/mips/insn-casesi.c   -O0  (test for excess
errors)
  665 FAIL: gcc.target/mips/insn-casesi.c   -O1  (test for excess
errors)
  666 FAIL: gcc.target/mips/insn-casesi.c   -O2  (test for excess
errors)
  667 FAIL: gcc.target/mips/insn-casesi.c   -O2 -flto
-fno-use-linker-plugin -flto-partition=none  (test for excess errors)
  668 FAIL: gcc.target/mips/insn-casesi.c   -O2 -flto
-fuse-linker-plugin -fno-fat-lto-objects  (test for excess errors)
  669 FAIL: gcc.target/mips/insn-casesi.c   -O3 -g  (test for excess
errors)
  670 FAIL: gcc.target/mips/insn-casesi.c   -Os  (test for excess errors)

The error message is " /usr/bin/as: unrecognized option '-mno-loongson-mmi' "

Those error come from follow options.
>   mips_option_dependency options "-mips16" "-mno-loongson-mmi"
>   mips_option_dependency options "-mmicromips" "-mno-loongson-mmi"
>   mips_option_dependency options "-msoft-float" "-mno-loongson-mmi"
>   mips_option_dependency options "-mmicromips" "-mno-loongson-ext"

We should add those dependency only config with
--with-arch=loongson3a/gs464/gs464e/gs246e.
I committed the attached patch as obvious.

Paul Hua
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