Pete Cooper f52123b454 [AArch64] Fix sext/zext folding in address arithmetic.
We were accidentally folding a sign/zero extend in to address arithmetic in a different BB when the extend wasn't available there.

Cross BB fast-isel isn't safe, so restrict this to only when the extend is in the same BB as the use.

llvm-svn: 236764
2015-05-07 19:21:36 +00:00
..
2015-02-13 10:48:30 +00:00
2014-08-20 10:40:20 +00:00