https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67612
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-09-18
Blocks| |53947
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I think DOT_PROD_EXRP is only supported as reduction operation right now. It
would need to be supported in vectorizable_conversion. Disabling DOT_PROD
pattern detection makes the loop vectorized (but with awkward code...).
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947
[Bug 53947] [meta-bug] vectorizer missed-optimizations
