https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90262
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-04-28
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Note we are expanding memmoves inline on GIMPLE already if we can use a single
load/store (with power-of-two size).
But confirmed, we can do like you say at the expense of register pressure.
We could also do a conditional branch and have two variants inline.
