Merging r195424:
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r195424 | haoliu | 2013-11-22 00:47:22 -0800 (Fri, 22 Nov 2013) | 4 lines

Fix the bugs about AArch64 Load/Store vector types and bitcast between i64 and vector types.
e.g. "%tmp = load <2 x i64>* %ptr" can't be selected. 
     "%tmp = bitcast i64 %in to <2 x i32>" can't be selected.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195764 91177308-0d34-0410-b5e6-96231b3b80d8