[SelectionDAG] Ensure constant folded legalized vector element types are compatible with the BUILD_VECTOR type

Found during fuzz testing - 32-bit x86 targets were legalizing a <2 x i1> compare result to <2 x i32> when <2 x i64> was expected.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264085 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed