Bug 845068 - IonMonkey: GVN: Don't make redundant HashSet lookups. r=nbp
Bug 845068 - IonMonkey: GVN: Implement congruentTo and valueHash for more load nodes, exposing more congruences and reducing collisions r=nbp
Bug 845068 - IonMonkey: GVN: When a value in the set has a differing dependence, overwrite it r=nbp