https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90836
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-06-11
Blocks| |26163
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
While it could be matched in match.pd variations would be quite a lot.
I don't see where else it fits (apart from forwprop which already does
fancy pattern matching...).
You probably want to match generic INTEGER_CSTs and delay the actual
verification into a with {}.
I suppose popcount on integers other than long long work with the same
pattern?
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26163
[Bug 26163] [meta-bug] missed optimization in SPEC (2k17, 2k and 2k6 and 95)
