From: Segher Boessenkool <segher@kernel.crashing.org>
To: Michael Meissner <meissner@linux.ibm.com>,
gcc-patches@gcc.gnu.org, David Edelsohn <dje.gcc@gmail.com>,
Bill Schmidt <wschmidt@linux.ibm.com>,
Peter Bergner <bergner@linux.ibm.com>,
Will Schmidt <will_schmidt@vnet.ibm.com>
Subject: Re: [PATCH] Fix float128-call.c test for power8 IEEE 128 and power10.
Date: Fri, 27 Aug 2021 12:29:42 -0500 [thread overview]
Message-ID: <20210827172942.GR1583@gate.crashing.org> (raw)
In-Reply-To: <YSa/qDv2385Qt6YO@toto.the-meissners.org>
On Wed, Aug 25, 2021 at 06:09:44PM -0400, Michael Meissner wrote:
> I built a compiler on a little endian power8 system where the default long
> double was IEEE 128-bit instead of IBM 128-bit. I discovered that on
> power8, we would generate a lxvd2x and xxpermdi to deal with the endianess
> instead of the Altivec lxv.
You mean lvx. Okay.
> +/* { dg-final { scan-assembler {\mlxvd2x 34\M|\mlvx 2\M|\mp?lxvx? 34\M} } } */
> +/* { dg-final { scan-assembler {\mstxvd2x 34\M|\mstvx 2\M|\mstxvx 34\M} } } */
"stxvx?" as well? For robustness. Can add "p?" as well, or would it
be bad if that ever is used, is this test testing it is not done?
Segher
next prev parent reply other threads:[~2021-08-27 17:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-25 22:09 Michael Meissner
2021-08-27 16:41 ` Bill Schmidt
2021-08-27 16:47 ` David Edelsohn
2021-08-27 17:11 ` Michael Meissner
2021-08-27 17:29 ` Segher Boessenkool [this message]
2021-08-27 20:11 ` Michael Meissner
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