65 lines
1.7 KiB
TableGen
65 lines
1.7 KiB
TableGen
// 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;
|
|
}
|
|
|
|
def Myi32 : Operand<i32> {
|
|
let DecoderMethod = "DecodeMyi32";
|
|
}
|
|
|
|
|
|
let OutOperandList = (outs), Size = 2 in {
|
|
|
|
def foo : Instruction {
|
|
let InOperandList = (ins i32imm:$factor);
|
|
field bits<16> Inst;
|
|
bits<32> factor;
|
|
let Inst{7...0} = 0xAA;
|
|
let Inst{14...8} = factor{6...0}; // no offset
|
|
let AsmString = "foo $factor";
|
|
field bits<16> SoftFail = 0;
|
|
}
|
|
|
|
def bar : Instruction {
|
|
let InOperandList = (ins i32imm:$factor);
|
|
field bits<16> Inst;
|
|
bits<32> factor;
|
|
let Inst{7...0} = 0xBB;
|
|
let Inst{15...8} = factor{10...3}; // offset by 3
|
|
let AsmString = "bar $factor";
|
|
field bits<16> SoftFail = 0;
|
|
}
|
|
|
|
def biz : Instruction {
|
|
let InOperandList = (ins i32imm:$factor);
|
|
field bits<16> Inst;
|
|
bits<32> factor;
|
|
let Inst{7...0} = 0xCC;
|
|
let Inst{11...8,15...12} = factor{10...3}; // offset by 3, multipart
|
|
let AsmString = "biz $factor";
|
|
field bits<16> SoftFail = 0;
|
|
}
|
|
|
|
def baz : Instruction {
|
|
let InOperandList = (ins Myi32:$factor);
|
|
field bits<16> Inst;
|
|
bits<32> factor;
|
|
let Inst{7...0} = 0xDD;
|
|
let Inst{15...8} = factor{11...4}; // offset by 4 + custom decode
|
|
let AsmString = "baz $factor";
|
|
field bits<16> SoftFail = 0;
|
|
}
|
|
|
|
}
|
|
|
|
// CHECK: tmp = fieldFromInstruction(insn, 8, 7);
|
|
// CHECK: tmp = fieldFromInstruction(insn, 8, 8) << 3;
|
|
// CHECK: tmp |= fieldFromInstruction(insn, 8, 4) << 7;
|
|
// CHECK: tmp |= fieldFromInstruction(insn, 12, 4) << 3;
|
|
// CHECK: tmp = fieldFromInstruction(insn, 8, 8) << 4;
|