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From: FX <fxcoudert@gmail.com>
To: Steve Kargl <sgk@troutmask.apl.washington.edu>
Cc: fortran@gcc.gnu.org
Subject: Re: New signaling NaN causes 12 testsuite failures
Date: Tue, 25 Jan 2022 09:05:55 +0100	[thread overview]
Message-ID: <93B4F458-9AD2-44DA-9F21-37B16C4A0CE8@gmail.com> (raw)
In-Reply-To: <20220125024811.GA19308@troutmask.apl.washington.edu>

Hi Steve,

> New signaling NaN causes 12 testsuite failures

Thanks for alerting me.


> Line 42 of signal_1.f90 looks wrong unless the
> line is testing conversion on assignment.  Should
> y be x?

Indeed. Fixed: https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=c0a4a658097c56fa03d04b8d15c3ea02961d62a4


> Got the following in testsuite/gfortran/gfortran.log
> 
> NaN 7FFFA000000000000000
> NaN 7FFFC000000000000000
> NaN 7FFFA000000000000000
> 
> and with "stop 300" commented out everything passes.  Now to
> chase down hex representations for sNaN and qNaN.  Suspect
> ieee_class() is broken.

How does the long double formation look like on x86_64-unknown-freebsd?
That test passes on x86_64 for linux and darwin, so I’m wondering what’s different about freebsd…

Can you tell me whether the C front-end defines __LDBL_IS_IEC_60559__? What is the value of __LDBL_DIG__? __DBL_DIG__? __FLOAT_WORD_ORDER == __BIG_ENDIAN or __LITTLE_ENDIAN?


FX

  reply	other threads:[~2022-01-25  8:05 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-25  0:44 Steve Kargl
2022-01-25  2:48 ` Steve Kargl
2022-01-25  8:05   ` FX [this message]
2022-01-25 17:42     ` Steve Kargl
2022-01-25 19:59     ` Steve Kargl
2022-01-25 20:04       ` FX
2022-01-25 20:20         ` Steve Kargl
2022-01-25  8:09 ` FX
2022-01-25 16:52   ` Steve Kargl
2022-01-25 19:35   ` Steve Kargl
2022-01-25 19:52     ` FX
2022-01-25 20:12       ` Steve Kargl
2022-01-25 20:45       ` Steve Kargl
2022-01-25 20:56         ` FX
2022-01-25 21:05           ` Steve Kargl
2022-01-25 23:11             ` FX
2022-01-26 10:47           ` Tobias Burnus
2022-01-26 16:02             ` Steve Kargl
2022-01-26 16:19               ` FX

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