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Author SHA1 Message Date
Bill Wendling
e3e394d982 Do trivial CSE of dead BBs during codegen preparation. 
Some BBs can become dead after codegen preparation. If we delete them here, it
could help enable tail-call optimizations later on.
<rdar://problem/10256573>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152002 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-04 10:46:01 +00:00
Evan Cheng
0191952296 Do not form thumb2 ldrd / strd if the offset is by multiple of 4. rdar://9133587 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127683 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-15 18:41:52 +00:00