On Wed, Feb 14, 2018 at 09:21:12PM +0300, Alexey Dobriyan wrote: > > - xorq %r8, %r8 /* nospec r8 */ > > + xorl %r8d, %r8d /* nospec r8 */ > > The suffix should be simply dropped as operand size is unambigious. > It is just one more character than necessary on the screen.
No strong feelings about this issue, but I prefer it to be explicit. And that's what seems to be the standard in arch/x86/entry/ . Thanks, Dominik