[PATCH] arm: Add support for Armv8.7-A and Armv8.8-A

[Richard Sandiford]

Richard Sandiford <richard.sandiford@arm.com> writes:
> This patch adds AArch32 support for -march=armv8.[78]-a.
> The behaviour of the new options can be expressed using a
> combination of existing feature flags and tables.
>
> The cpu_arch_ver entries are technically redundant but
> it seemed less surprising to include them anyway.
>
> Tested on aarch64-linux-gnu.

...which wouldn't count for much.  Actually tested on arm-linux-gnueabi
and arm-eabi.