[X86] Add -x86-experimental-vector-widening-legalization run line to avx512-cvt.ll

This will cover the (v2i32 (setcc v2f32)) case in replaceNodeResults. That code shouldn't be needed at all in this mode. A future patch will skip it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@341171 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed