From: Hayes Wang <hidden> Date: 2017-03-17 03:34:32
Also in:lkml
David Laight [mailto:David.Laight@ACULAB.COM]
Sent: Thursday, March 16, 2017 10:28 PM
[...]
If you are really lucky the compiler will optimise it away.
Otherwise it will generate another local variable and possibly
a register spill to stack.
However, I could reduce the time for calculating the address,
because I only calculate it once and save the result to a variable.
Right?
Best Regards,
Hayes