public inbox for libc-alpha@sourceware.org
 help / color / mirror / Atom feed
From: Steve Ellcey <sellcey@cavium.com>
To: libc-alpha@sourceware.org
Subject: long double test failures due to underflow exception getting set?
Date: Wed, 19 Jul 2017 21:34:00 -0000	[thread overview]
Message-ID: <201707192134.v6JLYQXo004521@sellcey-dt.caveonetworks.com> (raw)


Is anyone else seeing these failures with the latest glibc sources?
I am getting them on aarch64 (standard ToT sources) and was wondering
if this is an aarch64 specific problem or a more generic bug.  Since
all the failures involve long double I don't think they are using 
aarch64 specific code, but I could be wrong.

FAIL: math/test-ldouble-cexp
FAIL: math/test-ldouble-exp
FAIL: math/test-ldouble-finite-cexp
FAIL: math/test-ldouble-finite-exp

I think these failures are new and all of the failures listed are
about the Underflow exception being set:

I.e.

testing long double (without inline functions)
Failure: exp (-0x1p-10000): Exception "Underflow" set
Failure: exp (-0x2p-16384): Exception "Underflow" set
Failure: exp (-0x4p-16384): Exception "Underflow" set
Failure: exp (-0x4p-16448): Exception "Underflow" set
Failure: exp (-0x4p-16496): Exception "Underflow" set
Failure: exp (-0x8p-16448): Exception "Underflow" set


Steve Ellcey
sellcey@cavium.com

             reply	other threads:[~2017-07-19 21:34 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-19 21:34 Steve Ellcey [this message]
2017-07-20  0:58 ` Carlos O'Donell
2017-07-20 16:28   ` Steve Ellcey
2017-07-20 17:32 Wilco Dijkstra
2017-07-20 17:40 ` Steve Ellcey

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=201707192134.v6JLYQXo004521@sellcey-dt.caveonetworks.com \
    --to=sellcey@cavium.com \
    --cc=libc-alpha@sourceware.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).