https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70432
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-03-29
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. GIMPLE level "scheduling" could fix this (basically reduce
# of live regs anywhere, esp. across calls). Looks like -fschedule-insns
doesn't do the trick here (not with -fsched-pressure either) possibly because
there's no heuristic to make a different schedule profitable (or it never
considers to schedule sth before calls).
Leaving as RTL scheduling issue.
