1 files changed, 44 insertions, 0 deletions
diff --git a/test/TableGen/trydecode-emission3.td b/test/TableGen/trydecode-emission3.td
new file mode 100644
index 000000000000..ad21eefa897a
--- /dev/null
+++ b/test/TableGen/trydecode-emission3.td
@@ -0,0 +1,44 @@
+// RUN: llvm-tblgen -gen-disassembler -I %p/../../include %s | FileCheck %s
+
+include "llvm/Target/Target.td"
+
+def archInstrInfo : InstrInfo { }
+
+def arch : Target {
+  let InstructionSet = archInstrInfo;
+}
+
+class TestInstruction : Instruction {
+  let Size = 1;
+  let OutOperandList = (outs);
+  let InOperandList = (ins);
+  field bits<8> Inst;
+  field bits<8> SoftFail = 0;
+}
+
+def InstA : TestInstruction {
+  let Inst = {0,0,0,0,?,?,?,?};
+  let AsmString = "InstA";
+}
+
+def InstBOp : Operand<i32> {
+  let DecoderMethod = "DecodeInstBOp";
+  let hasCompleteDecoder = 0;
+}
+
+def InstB : TestInstruction {
+  bits<2> op;
+  let Inst{7-2} = {0,0,0,0,0,0};
+  let Inst{1-0} = op;
+  let OutOperandList = (outs InstBOp:$op);
+  let AsmString = "InstB";
+}
+
+// CHECK:      /* 0 */       MCD::OPC_ExtractField, 4, 4,  // Inst{7-4} ...
+// CHECK-NEXT: /* 3 */       MCD::OPC_FilterValue, 0, 14, 0, // Skip to: 21
+// CHECK-NEXT: /* 7 */       MCD::OPC_CheckField, 2, 2, 0, 5, 0, // Skip to: 18
+// CHECK-NEXT: /* 13 */      MCD::OPC_TryDecode, 24, 0, 0, 0, // Opcode: InstB, skip to: 18
+// CHECK-NEXT: /* 18 */      MCD::OPC_Decode, 23, 1, // Opcode: InstA
+// CHECK-NEXT: /* 21 */      MCD::OPC_Fail,
+
+// CHECK: if (DecodeInstBOp(MI, tmp, Address, Decoder) == MCDisassembler::Fail) { DecodeComplete = false; return MCDisassembler::Fail; }