Re: [Patch, ppc/darwin 2/2] Make Darwin's call handling follow the style of AIX/ELFv2/sysv.

[Segher Boessenkool <segher@kernel.crashing.org>]

On Mon, Dec 03, 2018 at 07:18:20PM +0000, Iain Sandoe wrote:
> revised version, on top of the revised patch 1 attached.  I’ve taken the opportunity to reduce the number of TARGET_MACHO conditionals in rs6000.md (handle in rs6000.c instead)

> From 82ac030d49fd2ae78b75a350c5efc59375df42a6 Mon Sep 17 00:00:00 2001
> From: Iain Sandoe <iain@sandoe.co.uk>
> Date: Sat, 1 Dec 2018 16:23:20 +0000
> Subject: [PATCH] [darwin,ppc] Update call expansions to follow the new scheme.
> 
> This also makes it a bit more apparent what we can remove when the
> mlongcall optimisation is removed.

> --- a/gcc/config/rs6000/rs6000.md
> +++ b/gcc/config/rs6000/rs6000.md
> @@ -10285,8 +10285,10 @@
>  
>    if (DEFAULT_ABI == ABI_AIX || DEFAULT_ABI == ABI_ELFv2)
>      rs6000_call_aix (NULL_RTX, operands[0], operands[1], operands[2]);
> -  else
> +  else if (DEFAULT_ABI == ABI_V4)
>      rs6000_call_sysv (NULL_RTX, operands[0], operands[1], operands[2]);
> +  else
> +    rs6000_call_darwin (NULL_RTX, operands[0], operands[1], operands[2]);

Maybe

  else if (DEFAULT_ABI == ABI_DARWIN)
    ...
  else
    gcc_unreachable ();

?  Similar elsewhere.

And I think I saw a missing space-before-opening-paren somewhere, but I
cannot find it now.  Okay for trunk, anyhow.


Segher