Tim Northover 22b561a27e AArch64: properly calculate cmpxchg status in FastISel.
We were relying on the misleadingly-names $status result to actually be the
status. Actually it's just a scratch register that may or may not be valid (and
is the inverse of the real ststus anyway). Success can be determined by
comparing the value loaded against the one we wanted to see for "cmpxchg
strong" loops like this.

Should fix PR28819.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277513 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-02 20:22:36 +00:00
..
2016-07-04 08:01:29 +00:00
2016-01-26 21:29:08 +00:00
2016-03-01 21:29:33 +00:00