8610:9bdd52a2214c |
03-Nov-2011 |
Nilay Vaish<nilay@cs.wisc.edu> |
x86: Add microop for fence This patch adds a new microop for memory barrier. The microop itself does nothing, but since it is marked as a memory barrier, the O3 CPU should flush all the pending loads and stores before the fence to the memory system. |