Instruction scheduling: Difference between revisions

Revision as of 14:19, 5 November 2017

Revision as of 14:49, 6 January 2018

Line 1:

{{Unreferenced|date=January 2009}}

In [[computer science]], '''instruction scheduling''' is a [[compiler optimization]] used to improve [[instruction-level parallelism]], which improves performance on machines with [[instruction pipeline]]s. Put more simply, without changing the meaning of the code, it tries to

* Avoid [[pipeline stall]]s by rearranging the order of instructions.

* Avoid illegal or semantically ambiguous operations (typically involving subtle instruction pipeline timing issues or non-interlocked resources).