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[Bug math/19085] ldbl-128 lrintl, lroundl missing exceptions for 32-bit long
- From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Wed, 07 Oct 2015 16:12:31 +0000
- Subject: [Bug math/19085] ldbl-128 lrintl, lroundl missing exceptions for 32-bit long
- Auto-submitted: auto-generated
- References: <bug-19085-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=19085
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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=119d073e334e9889a3fd904b333cd13d8217bc58
commit 119d073e334e9889a3fd904b333cd13d8217bc58
Author: Joseph Myers <joseph@codesourcery.com>
Date: Wed Oct 7 16:10:59 2015 +0000
Fix ldbl-128 lrintl, lroundl missing exceptions for 32-bit long (bug
19085).
The ldbl-128 implementations of lrintl and lroundl miss "invalid"
exceptions on systems with 32-bit long for arguments that overflow
long but have exponent below 48. This patch fixes this by rearranging
the sequence of tests in the code so the exponent < 48 case is only
used for exponents that don't overflow long.
Tested for mips64 (n32 and n64).
[BZ #19085]
* sysdeps/ieee754/ldbl-128/s_lrintl.c (__lrintl): Move test for
exponent below 48 inside case for non-overflowing exponent.
* sysdeps/ieee754/ldbl-128/s_lroundl.c (__lroundl): Likewise.
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 7 +++++++
NEWS | 2 +-
sysdeps/ieee754/ldbl-128/s_lrintl.c | 24 ++++++++++++------------
sysdeps/ieee754/ldbl-128/s_lroundl.c | 20 ++++++++++----------
4 files changed, 30 insertions(+), 23 deletions(-)
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