Re: PROPOSAL: Extend inline asm syntax with size spec

Segher Boessenkool
2018-10-31T22:22:31Z

On Wed, Oct 31, 2018 at 01:55:26PM +0100, Peter Zijlstra wrote:
> Anyway, with the below patch, I get:
>
> text data bss dec hex filename
> 17385183 5064780 1953892 24403855 1745f8f defconfig-build/vmlinux
> 17385678 5064780 1953892 24404350 174617e defconfig-build/vmlinux
>
> Which shows we inline more (look for asm_volatile for the actual
> changes).
>
>
> So yes, this seems like something we could work with.

Great to hear. Note that with my latest patches
(see https://gcc.gnu.org/ml/gcc-patches/2018-10/msg01931.html ) there
is no required order "asm volatile inline" anymore, so you can just say
"asm inline volatile". (And similar for "goto" as well).

Segher