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