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// RUN: llvm-tblgen %s | FileCheck %s
// XFAIL: vg_leak
// CHECK: --- Defs ---
// Test that P and Q are not replaced by ?. TableGen's codegen emitter backend
// relies on keeping variable references like this around to describe the
// structure of instruction encodings.
//
// CHECK: def A {
// CHECK: bits<8> Inst = { 1, 1, 1, 1, 1, 1, P, Q };
// CHECK: bits<2> src = { ?, ? };
// CHECK: bit P = ?;
// CHECK: bit Q = ?;
// CHECK: }
def A {
bits<8> Inst;
bits<2> src;
bit P;
bit Q;
let Inst{7-2} = 0x3f;
let Inst{1} = P;
let Inst{0} = Q;
let P = src{1};
let Q = src{0};
}
class x {
field bits<32> A;
}
class y<bits<2> B> : x {
let A{21-20} = B;
}
def z : y<{0,?}>;
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