Add tests for bitcast-bitcast sequences for all scalar/vector permutations

As noted in http://reviews.llvm.org/D15392 , we should be able to improve this.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255370 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed