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[Bug middle-end/50724] cmath's floating-point classification implementations inconsistent with math.h
- From: "pinskia at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 17 Oct 2011 19:25:06 +0000
- Subject: [Bug middle-end/50724] cmath's floating-point classification implementations inconsistent with math.h
- Auto-submitted: auto-generated
- References: <bug-50724-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50724
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |DUPLICATE
--- Comment #27 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-10-17 19:25:06 UTC ---
The patch just made cmath use the builtins and the builtin isnan is implemented
as !(a==a) which gets optimized to false because with only finite math, a has
to equal itself.
*** This bug has been marked as a duplicate of bug 25975 ***