https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80430
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-04-20
Blocks| |53947
Target Milestone|8.0 |---
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. One trivial improvement would be to use scalar_stmt (there's no
vector code emitted).
Another issue is that we combine the runtime cost model check with the alias
checks rather than emitting a separate gimple-cond for this.
Plus for a loop nest we should eventually version the whole nest (even if only
vectorizing the innermost loop) in case the versioning conditions are invariant
in the outer loop.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947
[Bug 53947] [meta-bug] vectorizer missed-optimizations
