1*67e6cab4SBob Wilson// RUN: tblgen %s
2*67e6cab4SBob Wilsonclass x {
3*67e6cab4SBob Wilson  field bits<32> A;
4*67e6cab4SBob Wilson}
5*67e6cab4SBob Wilson
6*67e6cab4SBob Wilsonclass y<bits<2> B> : x {
7*67e6cab4SBob Wilson  let A{21-20} = B;
8*67e6cab4SBob Wilson}
9*67e6cab4SBob Wilson
10*67e6cab4SBob Wilsondef z : y<{0,?}>;
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