[X86] Add a 32-bit mode command line to avx512-mask-op.ll. Add tests for storing v2i1 and v4i1 constants.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@326678 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed