[AntiDepBreaker] Revert r299124 and add a test.
Summary:
AntiDepBreaker intends to add all live-outs, including the implicit
CSRs, in StartBlock. r299124 was done without understanding that
intention.
Now with the live-ins propagated correctly (D32464), we can revert this change.
Reviewers: MatzeB, qcolombet
Subscribers: nemanjai, llvm-commits
Differential Revision: https://reviews.llvm.org/D33697
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304251 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed