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[Bug math/19465] Wrong code with -Os
- From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Fri, 15 Jan 2016 13:24:14 +0000
- Subject: [Bug math/19465] Wrong code with -Os
- Auto-submitted: auto-generated
- References: <bug-19465-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=19465
--- Comment #7 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
This is an automated email from the git hooks/post-receive script. It was
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The branch, master has been updated
via 09245377dac2c013155500ac0b3b05850813e3f8 (commit)
from 82c9a4f85e8522bc9e578725075d5c0535940b32 (commit)
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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=09245377dac2c013155500ac0b3b05850813e3f8
commit 09245377dac2c013155500ac0b3b05850813e3f8
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Jan 15 05:22:59 2016 -0800
Call math_opt_barrier inside if
Since floating-point operation may trigger floating-point exceptions,
we call math_opt_barrier inside if to prevent code motion.
[BZ #19465]
* sysdeps/ieee754/dbl-64/s_fma.c (__fma): Call math_opt_barrier
inside if.
* sysdeps/ieee754/ldbl-128/s_fmal.c (__fmal): Likewise.
* sysdeps/ieee754/ldbl-96/s_fma.c (__fma): Likewise.
* sysdeps/ieee754/ldbl-96/s_fmal.c (__fmal): Likewise.
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 9 +++++++++
sysdeps/ieee754/dbl-64/s_fma.c | 5 ++++-
sysdeps/ieee754/ldbl-128/s_fmal.c | 5 ++++-
sysdeps/ieee754/ldbl-96/s_fma.c | 5 ++++-
sysdeps/ieee754/ldbl-96/s_fmal.c | 5 ++++-
5 files changed, 25 insertions(+), 4 deletions(-)
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