Editing Microarchitecture (section)

=== Register renaming ===
{{Main|Register renaming}}

Register renaming refers to a technique used to avoid unnecessary serialized execution of program instructions because of the reuse of the same registers by those instructions. Suppose we have two groups of instruction that will use the same [[Processor register|register]]. One set of instructions is executed first to leave the register to the other set, but if the other set is assigned to a different similar register, both sets of instructions can be executed in parallel (or) in series.