[DAG] Allow non-uniform constant vectors to call BuildSDIV

This was missed in D50185.

NFC until we add actual non-uniform support to BuildSDIV (similar BuildUDIV support in D49248) - for now it just early outs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@339147 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed