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From: Joseph Myers <joseph@codesourcery.com>
To: Michael Meissner <meissner@linux.vnet.ibm.com>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>,
	Segher Boessenkool	<segher@kernel.crashing.org>,
	David Edelsohn <dje.gcc@gmail.com>,
	Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Subject: Re: [PATCH, version 4], Add support for _Float<N> and _Float<N>X sqrt, fma, fmin, fmax built-in functions
Date: Wed, 25 Oct 2017 20:11:00 -0000	[thread overview]
Message-ID: <alpine.DEB.2.20.1710252007310.18935@digraph.polyomino.org.uk> (raw)
In-Reply-To: <20171025191243.GA1434@ibm-tiger.the-meissners.org>

On Wed, 25 Oct 2017, Michael Meissner wrote:

> +static const char *const fltfn_suffixes[] = { "F16", "F32", "F128", "F32X",
> +                                             "F64X", "F128X", NULL };

I'd expect this to include F64.  If there's some reason that's 
inappropriate and the omission is deliberate, it needs a detailed comment 
explaining the omission.

I don't think that, given the availability of fmaf128 etc. built-in 
functions with appropriate options, whether __FP_FAST_* are defined should 
actually depend on whether the user has passed options to disable those 
functions (after all, it doesn't for the existing fma / fmaf / fmal, and 
individual built-in functions can be disabled with -fno-builtin-<function> 
so the logic you have wouldn't work to detect whether the built-in 
function is disabled anyway).

-- 
Joseph S. Myers
joseph@codesourcery.com

  parent reply	other threads:[~2017-10-25 20:10 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-13 21:46 [PATCH], Add support for __builtin_{sqrt,fma}f128 on PowerPC ISA 3.0 Michael Meissner
2017-09-13 22:49 ` Joseph Myers
2017-09-14 19:02   ` Michael Meissner
2017-10-19 22:15   ` [PATCH, version 2], Add support for _Float<N> and _Float<N>X sqrt, fma, fmin, fmax built-in functions Michael Meissner
2017-10-19 23:00     ` Joseph Myers
2017-10-19 23:00       ` Michael Meissner
2017-10-19 23:08         ` Joseph Myers
2017-10-24 22:40       ` [PATCH, version 3], " Michael Meissner
2017-10-24 23:13         ` Joseph Myers
2017-10-24 23:58           ` Michael Meissner
2017-10-25 19:25           ` [PATCH, version 4], " Michael Meissner
2017-10-25 20:01             ` Michael Meissner
2017-10-25 20:11             ` Joseph Myers [this message]
2017-10-25 20:31               ` Michael Meissner
2017-10-25 20:50                 ` Joseph Myers
2017-10-25 23:37                   ` [PATCH, version 5], " Michael Meissner
2017-10-25 23:56                     ` Joseph Myers
2017-10-26  0:04                       ` [PATCH, version 5a], " Michael Meissner
2017-10-26  0:17                         ` Michael Meissner
2017-10-30 16:29                           ` Joseph Myers
2017-10-30 18:05                             ` Michael Meissner
2017-10-30 18:38                               ` Joseph Myers
2017-10-30 23:06                                 ` Michael Meissner
2017-10-30 23:29                                   ` Michael Meissner
2017-10-30 23:35                                   ` Joseph Myers
2017-10-30 23:48                                     ` Michael Meissner
2017-10-31 18:04                                     ` Michael Meissner
2017-10-31 18:26                                       ` Joseph Myers
2017-10-27  2:27                         ` Segher Boessenkool
2017-09-14 14:54 ` [PATCH], Add support for __builtin_{sqrt,fma}f128 on PowerPC ISA 3.0 Segher Boessenkool
2017-09-14 22:21   ` Michael Meissner

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