[Bug binutils/20667] [libopcodes][Aarch64] IC ivau omits register operand if it's the zero register

[jiwang at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=20667

Jiong Wang <jiwang at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |aarch64*
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2016-10-05
                 CC|                            |jiwang at gcc dot gnu.org
            Version|2.26                        |2.28 (HEAD)
           Assignee|unassigned at sourceware dot org   |jiwang at gcc dot 
gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Jiong Wang <jiwang at gcc dot gnu.org> ---
thanks for reporting this.

I suspect "tlbi" has similar issue.  the Rt operand for "ic" and "tlbi" are
optional, and default to 0x1f.  We do should accept "ic ivau".

Will prepare a patch.

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