cpu: Fix incorrect speculative branch predictor behavior
Review Request #2298 - Created June 12, 2014 and submitted - Latest diff uploaded
| Information | |
|---|---|
| Ali Saidi | |
| gem5 | |
| default | |
| Reviewers | |
| Default | |
Changeset 10253:992be57d8ca3 --------------------------- cpu: Fix incorrect speculative branch predictor behavior When a branch mispredicted gem5 would squash all history after and including the mispredicted branch. However, the mispredicted branch is still speculative and its history is required to rollback state if another, older, branch mispredicts. This leads to things like RAS corruption.