https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113882
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Blocks| |53947
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
The vectoizer has some of these tricks but the intermediate conversion allowed
is somewhat hard-coded. I think the C standard says SF -> HI invokes undefined
behavior on overflow so the conversion should be valid.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947
[Bug 53947] [meta-bug] vectorizer missed-optimizations
