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Review request for Default, Ali Saidi, Gabe Black, Steve Reinhardt, and Nathan Binkert. Summary ------- O3: Fix an issue with a load & branch instruction and mem dep squashing Instructions that load an address and are control instructions can execute down the wrong path if they were predicted correctly and then instructions following them are squashed. If an instruction is a memory and control op use the predicted address for the next PC instead of just advancing the PC. Without this change NPC is used for the next instruction, but predPC is used to verify that the branch was successful so the wrong path is silently executed. Diffs ----- src/cpu/o3/iew_impl.hh 5a9a639ce16f Diff: http://reviews.m5sim.org/r/677/diff Testing ------- Passes all regression tests without change Thanks, Ali _______________________________________________ m5-dev mailing list m5-dev@m5sim.org http://m5sim.org/mailman/listinfo/m5-dev
