[PATCH] Fix up floatunsv{4,8}siv{4,8}sf2

[Uros Bizjak]

On Thu, Nov 3, 2011 at 6:54 PM, Jakub Jelinek <jakub@redhat.com> wrote:

> As mentioned in the last mail, the testcase in that patch
> shows a bug in the unsigned int -> float vectorization
> on i?86/x86_64.  E.g. 0x8000008fU converted to float
> by scalar code is 0x1.000002p+31, but by vector code
> is 0x1p+31, i.e. one ulp smaller.

< stuff >

> So, what do you prefer and do you want the expander to be moved into
> i386.c or kept like this?  Do we perhaps want for -ffast-math
> keep the slightly faster, but imprecise version (I'd prefer not to)?

IMO, let's go with the fastest solution (X313c), but please move
expander to i386.c.

Also, -ffast-math should use the same version. At the end of the day,
real-world applications do not comprise only unsigned conversions ;)

Uros.