ginal Message-----
> From: Richard Biener
> Sent: 14 July 2020 15:17
> To: Roger Sayle
> Cc: GCC Patches
> Subject: Re: [PATCH] x86: Provide expanders for truncdisi2 and friends.
>
> On Mon, Jul 13, 2020 at 4:50 PM Roger Sayle
> wrote:
> > > It seems to be impr
ODES_P instead of calling
targetm.truly_noop_truncation directly.
Ok for mainline?
Thanks again,
Roger
--
-Original Message-
From: Richard Biener
Sent: 14 July 2020 15:17
To: Roger Sayle
Cc: GCC Patches
Subject: Re: [PATCH] x86: Provide expanders for truncdisi2 and friends.
On Mon, Jul 13, 20
On Mon, Jul 13, 2020 at 4:50 PM Roger Sayle wrote:
>
>
> Hi Richard,
>
> > It seems to be improving TARGET_TRULY_NOOP_TRUNCATION documentation might
> > be useful here.
>
> This is an excellent suggestion. How about the following/attached:
>
> 2020-07-13 Roger Sayle
>
> gcc/ChangeLog:
>
Hi Richard,
> It seems to be improving TARGET_TRULY_NOOP_TRUNCATION documentation might be
> useful here.
This is an excellent suggestion. How about the following/attached:
2020-07-13 Roger Sayle
gcc/ChangeLog:
* doc/tm.texi (TARGET_TRULY_NOOP_TRUNCATION): Clarify that targets
On Sun, Jul 12, 2020 at 1:29 AM Roger Sayle wrote:
>
>
> Even by my standards, this is an odd patch. This adds expanders to
> i386.md requesting that integer truncations be represented in RTL
> using SUBREGs. This exactly matches the (current) default behaviour
> when TARGET_TRULY_NOOP_TRUNCATIO
Doh! With the attachment.
-Original Message-
From: Roger Sayle
Sent: 12 July 2020 00:29
To: 'gcc-patches@gcc.gnu.org'
Subject: [PATCH] x86: Provide expanders for truncdisi2 and friends.
Even by my standards, this is an odd patch. This adds expanders to i386.md
requesting that integ
