Subject: Re: [RFC PATCH 7/8] powerpc/purgatory: drop .machine specifier

From: Segher Boessenkool <[email-masked]>
Date: Thu, 25 Feb 2021 09:58:36 -0600

On Thu, Feb 25, 2021 at 02:10:05PM +1100, Daniel Axtens wrote:
> It's ignored by future versions of llvm's integrated assembler (by not -11).
> I'm not sure what it does for us in gas.

It enables all insns that exist on 620 (the first 64-bit PowerPC CPU).

> --- a/arch/powerpc/purgatory/trampoline_64.S
> +++ b/arch/powerpc/purgatory/trampoline_64.S
> @@ -12,7 +12,7 @@
>  #include <asm/asm-compat.h>
>  #include <asm/crashdump-ppc64.h>
>  
> -	.machine ppc64
> +//upgrade clang, gets ignored	.machine ppc64

Why delete it if it is ignored?  Why add a cryptic comment?

Segher