[Bug binutils/20775] dd f0 is disassebled as fnop

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=20775

--- Comment #1 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
The master branch has been updated by H.J. Lu <address@hidden>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=48c97fa1ba7d6628352fc2433abd91a41f6c8171

commit 48c97fa1ba7d6628352fc2433abd91a41f6c8171
Author: H.J. Lu <address@hidden>
Date:   Mon Nov 7 14:58:38 2016 -0800

    X86: Properly handle bad FPU opcode

    Since Bad_Opcode and FGRPd9_2 were the same in i386-dis.c, all
    Bad_Opcode entries in float_reg were displaced as FGRPd9_2.  This
    patch adds an entry for Bad_Opcode in fgrps to avoid treating it
    as FGRPd9_2.

    gas/

        PR binutils/20775
        * testsuite/gas/i386/i386.exp: Run fpu-bad.
        * testsuite/gas/i386/fpu-bad.d: New file.
        * testsuite/gas/i386/fpu-bad.s: Likewise.

    opcodes/

        PR binutils/20775
        * i386-dis.c (FGRPd9_2): Replace 0 with 1.
        (FGRPd9_4): Replace 1 with 2.
        (FGRPd9_5): Replace 2 with 3.
        (FGRPd9_6): Replace 3 with 4.
        (FGRPd9_7): Replace 4 with 5.
        (FGRPda_5): Replace 5 with 6.
        (FGRPdb_4): Replace 6 with 7.
        (FGRPde_3): Replace 7 with 8.
        (FGRPdf_4): Replace 8 with 9.
        (fgrps): Add an entry for Bad_Opcode.

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