[Bug target/116979] [12/13/14/15 regression] fma not always used in complex product

[ubizjak at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116979

--- Comment #14 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Jakub Jelinek from comment #12)
> With the following patch instead it isn't vectorized anymore and uses scalar
> code:
AFAICS, this is the correct patch to implement partial vector V2SFmode pattern.