[Bug target/52607] v4df __builtin_shuffle with {0,2,1,3} or {1,3,0,2}

[marc.glisse at normalesup dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52607

--- Comment #16 from Marc Glisse <marc.glisse at normalesup dot org> 2012-03-20 
19:05:22 UTC ---
(In reply to comment #15)
> If I am not mistaken, the V8SF shuffle 22022246 is doable by a vperm2f128 that
> takes 01234567 to 01230123, followed by a vshufps (mask 138 maybe). Was your
> patch supposed to handle it?

Uh, no it isn't supposed to handle it (there would be redundancy and it
wouldn't know where to take elements from), sorry, forget that comment.