Date: Tue, 27 May 2003 09:42:42 +0100 From: Doug Rabson <dfr@nlsystems.com> To: freebsd-current@freebsd.org, "David O'Brien" <obrien@freebsd.org>, Anti <fearow@attbi.com> Cc: freebsd-current@freebsd.org Subject: Re: gcc/libm floating-point bug? Message-ID: <200305270942.42945.dfr@nlsystems.com> In-Reply-To: <20030522173256.GA81438@dragon.nuxi.com> References: <200305201025.30296.jlido@goof.com> <20030522093623.30915ed0.fearow@attbi.com> <20030522173256.GA81438@dragon.nuxi.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thursday 22 May 2003 6:32 pm, David O'Brien wrote: > On Thu, May 22, 2003 at 09:36:23AM -0500, Anti wrote: > > p4 should expand to "-march=pentium4 -mno-sse2" > > If we are going to make any change, it should be one we know will > deal with the issue once and for all. I also considered submitting a > patch like that, but it is too late in the game to figure out if > "-march=pentium4 -mno-sse2" would be sufficient in all cases. Even for special cases, it is hard to use -msse (or -msse2) with gcc-3.2.x since it doesn't always manage to 16-byte align the stack pointer. This makes it hard to declare local vector float variables safely. All of this appears to be fixed in gcc-3.3-prerelease at least. -- Doug Rabson Mail: dfr@nlsystems.com Phone: +44 20 8348 6160
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200305270942.42945.dfr>