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[Bug target/31907] isnan builtin doesn't work
- From: "akr at m17n dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 23 Nov 2007 07:52:57 -0000
- Subject: [Bug target/31907] isnan builtin doesn't work
- References: <bug-31907-2489@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from akr at m17n dot org 2007-11-23 07:52 -------
(In reply to comment #0)
> isnan(0.0/0.0) returns false.
> It returns true if -fno-builtin.
I found it is a problem of FPU emulation in Linux kernel.
The problem is caused by FASTFPE.
NWFPE doesn't have the problem.
--
akr at m17n dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31907