Merge r324422 to 6.0 branch ([LivePhysRegs] Fix handling of return instructions.)

[efriedma-quic]

Bugzilla Link	36114
Resolution	FIXED
Resolved on	Feb 07, 2018 02:01
Version	6.0
OS	Windows NT
Blocks	#35152
CC	@alexcrichton,@zmodem,@MatzeB

Extended Description

https://reviews.llvm.org/rL323559. Fixes a ARM miscompile with certain code pattterns; see #35421 .

[efriedma-quic]

Actually, maybe wait on this; this breaks EXPENSIVE_CHECKS builds. See https://reviews.llvm.org/D42655 .

[zmodem]

Okay, keep me posted.

[zmodem]

Is there any update here?

[efriedma-quic]

D42655 just got approved, I'll commit to trunk today.

[efriedma-quic]

https://reviews.llvm.org/rL324422 . (Just the one patch; it supersedes the previous fix.)

[zmodem]

Merged in r324466.