[Bug gas/24258] v8.5 extension "frintts" missing as a separate feature

[rth at twiddle dot net]

https://sourceware.org/bugzilla/show_bug.cgi?id=24258

--- Comment #2 from Richard Henderson <rth at twiddle dot net> ---
On 2/25/19 4:32 AM, sudi at gcc dot gnu.org wrote:
> https://sourceware.org/bugzilla/show_bug.cgi?id=24258
> 
> --- Comment #1 from Sudakshina Das <sudi at gcc dot gnu.org> ---
> Hi Richard
> 
> As far as I can see, frintts is not on optional feature on Armv8.5-A and thus 
> I
> don't believe a command line argument is needed, unless I missed something.

Because all features from ARMv8.{N+1} are optional in ARMv8.N.
So it's valid to include this in an ARMv8.4-A cpu.

Plus, as developers, if we just want to test one thing, we're
as apt to write .arch armv8-a+frint as anything.


r~

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