On 05/24/2011 07:28 PM, H.J. Lu wrote: > This patch implements pause intrinsic suggested by Andi. OK > for trunk?
What does "full memory barrier" here mean?
+@table @code
+@item void __builtin_ia32_pause (void)
+Generates the @code{pause} machine instruction with full memory barrier.
+@end table
There a memory clobber, but no barrier instruction AFAICS. The
doc needs to explain it a bit better.
Andrew.
