Owen Anderson 47f0efad86 When folding away a (shl (shr)) pair, we need to check that the bits that will BECOME the low
bits are zero, not that the current low bits are zero.  Fixes <rdar://problem/8606771>.

llvm-svn: 117953
2010-11-01 21:08:20 +00:00
..
2010-09-02 22:38:56 +00:00
2010-08-03 16:19:16 +00:00
2010-08-31 18:44:03 +00:00