------- Comment #3 from hjl at lucon dot org 2008-01-08 18:01 -------
(In reply to comment #2)
> (In reply to comment #1)
> > No idea if Uros has access to spec, so maybe you can quote the snippet where
> > rsqrtss is used from the assembly of 481.wrf?
>
> Unfortunatelly no... does this patch help:
>
> Index: i386.c
> ===================================================================
> --- i386.c (revision 131392)
> +++ i386.c (working copy)
> @@ -21449,7 +21449,7 @@ static tree
> ix86_builtin_reciprocal (unsigned int fn, bool md_fn,
> bool sqrt ATTRIBUTE_UNUSED)
> {
> - if (! (TARGET_SSE_MATH && !optimize_size
> + if (! (TARGET_SSE_MATH && TARGET_RECIP && !optimize_size
> && flag_finite_math_only && !flag_trapping_math
> && flag_unsafe_math_optimizations))
> return NULL_TREE;
It works.
> BTW: What happens if -mrecip is used to compile 481.wrf?
I will give it a try.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34709
