45 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			TableGen
		
	
	
	
			
		
		
	
	
			45 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			TableGen
		
	
	
	
| // RUN: llvm-tblgen -gen-disassembler -I %p/../../include %s | FileCheck %s
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| 
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| include "llvm/Target/Target.td"
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| 
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| def archInstrInfo : InstrInfo { }
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| 
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| def arch : Target {
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|   let InstructionSet = archInstrInfo;
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| }
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| 
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| class TestInstruction : Instruction {
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|   let Size = 1;
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|   let OutOperandList = (outs);
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|   let InOperandList = (ins);
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|   field bits<8> Inst;
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|   field bits<8> SoftFail = 0;
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| }
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| 
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| def InstA : TestInstruction {
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|   let Inst = {0,0,0,0,?,?,?,?};
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|   let AsmString = "InstA";
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| }
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| 
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| def InstBOp : Operand<i32> {
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|   let DecoderMethod = "DecodeInstBOp";
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|   let hasCompleteDecoder = 0;
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| }
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| 
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| def InstB : TestInstruction {
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|   bits<2> op;
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|   let Inst{7-2} = {0,0,0,0,0,0};
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|   let Inst{1-0} = op;
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|   let OutOperandList = (outs InstBOp:$op);
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|   let AsmString = "InstB";
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| }
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| 
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| // CHECK:      /* 0 */       MCD::OPC_ExtractField, 4, 4,  // Inst{7-4} ...
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| // CHECK-NEXT: /* 3 */       MCD::OPC_FilterValue, 0, 14, 0, // Skip to: 21
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| // CHECK-NEXT: /* 7 */       MCD::OPC_CheckField, 2, 2, 0, 5, 0, // Skip to: 18
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| // CHECK-NEXT: /* 13 */      MCD::OPC_TryDecode, 24, 0, 0, 0, // Opcode: InstB, skip to: 18
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| // CHECK-NEXT: /* 18 */      MCD::OPC_Decode, 23, 1, // Opcode: InstA
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| // CHECK-NEXT: /* 21 */      MCD::OPC_Fail,
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| 
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| // CHECK: if (DecodeInstBOp(MI, tmp, Address, Decoder) == MCDisassembler::Fail) { DecodeComplete = false; return MCDisassembler::Fail; }
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