[Bug target/27827] gcc 4 produces worse x87 code on all platforms than gcc 3

["whaley at cs dot utsa dot edu" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #15 from whaley at cs dot utsa dot edu  2006-06-24 18:10 -------
Hi,

Can someone tell me if anyone is looking into this problem with the hopes of
fixing it?  I just noticed that despite the posted code demonstrating the
problem, and verification on: Pentium Pro, Pentium III, Pentium 4e, Pentium-D,
Athlon-64 X2 and Opteron, it is still marked as "new", and no one is assigned
to look at it  . . .

The reason I ask is that I am preparing the next stable release of ATLAS, and
I'm getting close to having to make a decision on what compilers I will
support.
If someone is working feverishly in the background, I will be sure to wait
for it, in the hopes that there'll be a fix that will allow me to use
gcc 4, which I think will be what most of my users want.  If this problem
is not being looked into, I should not delay the ATLAS release for it, and
just require my users to install gcc 3 in order to get decent performance.

I realize you guys are busy, and fp performance is probably not your main
concern, so hopefully this message sounds more like a request for info on what
is going on, than a bitch about help that I'm getting for free :)  

Thanks,
Clint


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27827