| // RUN: llvm-tblgen -gen-emitter -I %p/../../include %s | FileCheck %s --check-prefix=ENCODER |
| // RUN: llvm-tblgen -gen-disassembler -I %p/../../include %s | FileCheck %s --check-prefix=DECODER |
| |
| include "llvm/Target/Target.td" |
| |
| def archInstrInfo : InstrInfo { } |
| |
| def arch : Target { |
| let InstructionSet = archInstrInfo; |
| } |
| |
| def Myi32 : Operand<i32> { |
| let DecoderMethod = "DecodeMyi32"; |
| } |
| |
| def ModeA : HwMode<"+a">; |
| def ModeB : HwMode<"+b">; |
| |
| |
| def fooTypeEncA : InstructionEncoding { |
| let Size = 4; |
| field bits<32> SoftFail = 0; |
| bits<32> Inst; |
| bits<8> factor; |
| let Inst{7...0} = factor; |
| let Inst{3...2} = 0b11; |
| let Inst{1...0} = 0b00; |
| } |
| |
| def fooTypeEncB : InstructionEncoding { |
| let Size = 4; |
| field bits<32> SoftFail = 0; |
| bits<32> Inst; |
| bits<8> factor; |
| let Inst{15...8} = factor; |
| let Inst{1...0} = 0b11; |
| } |
| |
| let OutOperandList = (outs) in { |
| def foo : Instruction { |
| let InOperandList = (ins i32imm:$factor); |
| let EncodingInfos = EncodingByHwMode< |
| [ModeA, ModeB], [fooTypeEncA, |
| fooTypeEncB] |
| >; |
| let AsmString = "foo $factor"; |
| } |
| |
| def bar: Instruction { |
| let InOperandList = (ins i32imm:$factor); |
| let Size = 4; |
| bits<32> Inst; |
| bits<32> SoftFail; |
| bits<8> factor; |
| let Inst{31...24} = factor; |
| let Inst{1...0} = 0b10; |
| let AsmString = "bar $factor"; |
| } |
| |
| def baz : Instruction { |
| let InOperandList = (ins i32imm:$factor); |
| bits<32> Inst; |
| let EncodingInfos = EncodingByHwMode< |
| [ModeB], [fooTypeEncA] |
| >; |
| let AsmString = "foo $factor"; |
| } |
| } |
| |
| // DECODER-LABEL: DecoderTable_ModeA32[] = |
| // DECODER-DAG: Opcode: fooTypeEncA:foo |
| // DECODER-DAG: Opcode: bar |
| // DECODER-LABEL: DecoderTable_ModeB32[] = |
| // Note that the comment says fooTypeEncA but this is actually fooTypeEncB; plumbing |
| // the correct comment text through the decoder is nontrivial. |
| // DECODER-DAG: Opcode: fooTypeEncA:foo |
| // DECODER-DAG: Opcode: bar |
| |
| // ENCODER-LABEL: static const uint64_t InstBits_ModeA[] = { |
| // ENCODER: UINT64_C(2), // bar |
| // ENCODER: UINT64_C(12), // foo |
| |
| // ENCODER-LABEL: static const uint64_t InstBits_ModeB[] = { |
| // ENCODER: UINT64_C(2), // bar |
| // ENCODER: UINT64_C(3), // foo |
| |
| // ENCODER: case ::foo: { |
| // ENCODER: switch (HwMode) { |
| // ENCODER: default: llvm_unreachable("Unhandled HwMode"); |
| // ENCODER: case 1: { |
