The store-to-load forwarding (STLDF) code will consider a SW prefetch hitting on an older store as a succesful case of STLDF, which is incorrect as SW prefetches do not return data, and eventually leads to an assert firing. Jira Issue: https://gem5.atlassian.net/browse/GEM5-934 Change-Id: I4c26f13642dc0b5101914109288614010f8f9978 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/46261 Reviewed-by: Nathanael Premillieu <nathanael.premillieu@huawei.com> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>