tree 6ccd1c7cd82de1acd3a5f1057b80f4bc8aa6210b
parent 7cb1010bdedb613b06fcf2cb582e14c57d1d794f
author Jordi Vaquero <jordi.vaquero@metempsy.com> 1565055906 +0200
committer Jordi Vaquero <jordi.vaquero@metempsy.com> 1565199591 +0000

cpu-o3: fix atomic instructions non-speculative

Fix problem with O3 and AMO instructions. At initial stages amo
instruction is considered a type of non-speculative store. After
the instruction has been commited and during the squash step,
acquire_release version of the AMO operation is considered speculative,
that differents results in an assert fault. This fix ensures that AMO
instructions are always considered non-speculative, during early stages
and during squas/removal of the instruction.

Change-Id: Ia0c5fbb9dc44a9991337b57eb759b1ed08e4149e
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/19815
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Tested-by: kokoro <noreply+kokoro@google.com>