https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63277
ktkachov at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Target| |arm
Status|UNCONFIRMED |NEW
Last reconfirmed| |2014-09-16
CC| |ktkachov at gcc dot gnu.org
Ever confirmed|0 |1
Known to fail| |5.0
--- Comment #1 from ktkachov at gcc dot gnu.org ---
Confirmed.
The vmovs and vswp are generated from the implementation of our vcombine. The
define_insn_and split for neon_vcombine<mode> splits into moves/swaps after
reload, thus not giving the register allocator a chance to optimise the moves
away.
