public inbox for gdb-prs@sourceware.org
help / color / mirror / Atom feed
* [Bug gdb/18732] New: tautological-compare warning breaks build
@ 2015-07-29 9:08 lukeallardyce at gmail dot com
2015-07-29 9:16 ` [Bug gdb/18732] " palves at redhat dot com
0 siblings, 1 reply; 2+ messages in thread
From: lukeallardyce at gmail dot com @ 2015-07-29 9:08 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=18732
Bug ID: 18732
Summary: tautological-compare warning breaks build
Product: gdb
Version: HEAD
Status: NEW
Severity: normal
Priority: P2
Component: gdb
Assignee: unassigned at sourceware dot org
Reporter: lukeallardyce at gmail dot com
Target Milestone: ---
A new warning was recently added to GCC trunk (tautological-compare, also
available on Clang) which caused the following line in doublest.c to break the
build
391 if (dfrom != dfrom) /* Result is NaN */
adding -Wno-tautological-compare to CFLAGS fixes it for now.
--
You are receiving this mail because:
You are on the CC list for the bug.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug gdb/18732] tautological-compare warning breaks build
2015-07-29 9:08 [Bug gdb/18732] New: tautological-compare warning breaks build lukeallardyce at gmail dot com
@ 2015-07-29 9:16 ` palves at redhat dot com
0 siblings, 0 replies; 2+ messages in thread
From: palves at redhat dot com @ 2015-07-29 9:16 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=18732
Pedro Alves <palves at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |palves at redhat dot com
Resolution|--- |INVALID
--- Comment #1 from Pedro Alves <palves at redhat dot com> ---
This is a GCC bug.
It was a mistake for that warning to warn on floats, as self comparison is the
standard NaN check. Upstream GCC is going to disable the warning for floats:
https://gcc.gnu.org/ml/gcc-patches/2015-07/msg02399.html
--
You are receiving this mail because:
You are on the CC list for the bug.
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2015-07-29 9:16 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-07-29 9:08 [Bug gdb/18732] New: tautological-compare warning breaks build lukeallardyce at gmail dot com
2015-07-29 9:16 ` [Bug gdb/18732] " palves at redhat dot com
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).