https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85533
Randy Brecker <randy.brecker64 at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|avr |x86 avr
Status|RESOLVED |VERIFIED
Version|7.3.0 |8.0.1
--- Comment #3 from Randy Brecker <randy.brecker64 at gmail dot com> ---
This is also true von x86_64, where we get:
movzbl x(%rip), %eax
sarl %eax
movb %al, x(%rip)
movzbl y(%rip), %eax
shrb %al
movb %al, y(%rip)
xorl %eax, %eax
Looks like a FE bug here.
