7005a76638
Print DecodeIdx associated with Decode MCD ops in the generated decoder tables. This can help in debugging decode failures by first mapping the Op -> DecodeIdx and then inspecting the code in `decodeToMCInst` associated with that DecodeIdx.
59 lines
2.7 KiB
TableGen
59 lines
2.7 KiB
TableGen
// RUN: llvm-tblgen -gen-disassembler -I %p/../../include %s | FileCheck %s
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// RUN: llvm-tblgen -gen-disassembler --large-decoder-table -I %p/../../include %s | FileCheck %s --check-prefix=CHECK-LARGE
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include "llvm/Target/Target.td"
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def archInstrInfo : InstrInfo { }
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def arch : Target {
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let InstructionSet = archInstrInfo;
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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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def InstA : TestInstruction {
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let Inst = {0,0,0,0,0,0,?,?};
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let AsmString = "InstA";
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let DecoderMethod = "DecodeInstA";
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let hasCompleteDecoder = 0;
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}
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def InstB : TestInstruction {
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let Inst = {0,0,0,?,?,0,1,1};
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let AsmString = "InstB";
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let DecoderMethod = "DecodeInstB";
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let hasCompleteDecoder = 0;
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}
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// CHECK: /* 0 */ MCD::OPC_ExtractField, 2, 1, // Inst{2} ...
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// CHECK-NEXT: /* 3 */ MCD::OPC_FilterValueOrFail, 0,
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// CHECK-NEXT: /* 5 */ MCD::OPC_ExtractField, 5, 3, // Inst{7-5} ...
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// CHECK-NEXT: /* 8 */ MCD::OPC_FilterValueOrFail, 0
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// CHECK-NEXT: /* 10 */ MCD::OPC_CheckField, 0, 2, 3, 6, 0, // Skip to: 22
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// CHECK-NEXT: /* 16 */ MCD::OPC_TryDecode, {{[0-9]+}}, {{[0-9]+}}, 0, 0, 0, // Opcode: InstB, DecodeIdx: {{[0-9]+}}, Skip to: 22
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// CHECK-NEXT: /* 22 */ MCD::OPC_CheckFieldOrFail, 3, 2, 0,
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// CHECK-NEXT: /* 26 */ MCD::OPC_TryDecodeOrFail, {{[0-9]+}}, {{[0-9]+}}, 1,
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// CHECK-NEXT: /* 30 */ MCD::OPC_Fail,
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// CHECK: if (!Check(S, DecodeInstB(MI, insn, Address, Decoder))) { DecodeComplete = false; return MCDisassembler::Fail; }
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// CHECK: if (!Check(S, DecodeInstA(MI, insn, Address, Decoder))) { DecodeComplete = false; return MCDisassembler::Fail; }
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// CHECK-LARGE: /* 0 */ MCD::OPC_ExtractField, 2, 1, // Inst{2} ...
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// CHECK-LARGE-NEXT: /* 3 */ MCD::OPC_FilterValueOrFail, 0,
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// CHECK-LARGE-NEXT: /* 5 */ MCD::OPC_ExtractField, 5, 3, // Inst{7-5} ...
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// CHECK-LARGE-NEXT: /* 8 */ MCD::OPC_FilterValueOrFail, 0,
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// CHECK-LARGE-NEXT: /* 10 */ MCD::OPC_CheckField, 0, 2, 3, 7, 0, 0, // Skip to: 24
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// CHECK-LARGE-NEXT: /* 17 */ MCD::OPC_TryDecode, {{[0-9]+}}, {{[0-9]+}}, 0, 0, 0, 0, // Opcode: InstB, DecodeIdx: {{[0-9]+}}, Skip to: 24
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// CHECK-LARGE-NEXT: /* 24 */ MCD::OPC_CheckFieldOrFail, 3, 2, 0,
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// CHECK-LARGE-NEXT: /* 28 */ MCD::OPC_TryDecodeOrFail, {{[0-9]+}}, {{[0-9]+}}, 1,
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// CHECK-LARGE-NEXT: /* 32 */ MCD::OPC_Fail,
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// CHECK-LARGE: if (!Check(S, DecodeInstB(MI, insn, Address, Decoder))) { DecodeComplete = false; return MCDisassembler::Fail; }
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// CHECK-LARGE: if (!Check(S, DecodeInstA(MI, insn, Address, Decoder))) { DecodeComplete = false; return MCDisassembler::Fail; }
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