https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86609
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-07-23
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Well, it's general expression combining, you want
(for round (ROUNDF ROUND ROUNDL)
iround (IROUNDF LROUND LLROUNDL)
(simplify
(fix_trunc (round @0))
(iround @0)))
specifically without restricting to single-use (round @0). Not sure
if that's a good idea in general. Note the above needs more thought
about which {I,L,LL}ROUND* to use.
And no, reassoc wouldn't be the pass to deal with this.
