[Bug target/116303] RISC-V: -mcpu doesn't populate .attribute arch string when directly invoking cc1

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116303

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This is expected.

Basically the driver expands mcpu when invoked via riscv_expand_arch_from_cpu
function.

%{mcpu=*:%:riscv_expand_arch_from_cpu(%* %(VALUE))}}


See r11-3906-g72eb8335848be7 on how it is implemented fully. But this is by
design. That is if you are invoking cc1 directly you should follow the same way
the driver does it.