Displaying 1 result from an estimated 1 matches for "5ae43f8b".
2016 Dec 12
3
AtomicExpandPass and branch weighting
I'm working on a change to the layout algorithm, and I noted that
test/CodeGen/ARM/cmpxchg-weak.ll was affected.
Normally, that would be fine, but I noted that the layout changed the
fallthrough from the success case to the failure case. I was surprised to
see that the success case isn't annotated with a branch weight by
AtomicExpandPass.cpp
Would it make sense to annotate the success