ARM: Use less micro-ops for register update loads if possible.
Review Request #225 - Created Aug. 23, 2010 and submitted
| Information | |
|---|---|
| Ali Saidi | |
| gem5 | |
| Reviewers | |
| Default | |
ARM: Use less micro-ops for register update loads if possible. Allow some loads that update the base register to use just two micro-ops. three micro-ops are only used if the destination register matches the offset register or the PC is the destination register. If the PC is updated it needs to be the last micro-op otherwise O3 will mispredict.