Only legalise a VSELECT in to bitwise operations if the vector mask bool is zeros or all ones.  A vector bool with just ones isn't suitable for masking with.

No test case unfortunately as i couldn't find a target which fit all
the conditions needed to hit this code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163075 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed