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* [AArch64] Do 64-bit vector move of 0 and -1 by extracting from the 128-bit moveJohn Brawn2018-10-251-2/+2
| | | | | | | | | | Currently a vector move of 0 or -1 will use different instructions depending on the size of the vector. Using a single instruction (the 128-bit one) for both gives more opportunity for Machine CSE to eliminate instructions. Differential Revision: https://reviews.llvm.org/D53579 llvm-svn: 345270
* Fix PR23065. Avoid optimizing bitcast of build_vector with constant input to ↵Jiangning Liu2015-04-011-0/+27
scalar_to_vector. llvm-svn: 233778
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