https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91435
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-08-13
Blocks| |53947
Ever confirmed|0 |1
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. Note that IVOPTs does not even look at vector IVs and unfortunately
the vectorizer itself doesn't try to be clever in any way here.
Indeed there's a lot to be desired for the vector code we generate for this
testcase...
Even when not vectorized unrolling the loop to eliminate the conditional
would be profitable I guess (no convenient pass to do this though).
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947
[Bug 53947] [meta-bug] vectorizer missed-optimizations
