InitValue.td
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// 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;
}
let OutOperandList = (outs), Size = 2 in {
def foo : Instruction {
let InOperandList = (ins i32imm:$factor);
field bits<16> Inst;
field bits<16> SoftFail = 0;
bits<8> factor;
let factor{0} = 0; // zero initial value
let Inst{15-8} = factor{7-0};
}
def bar : Instruction {
let InOperandList = (ins i32imm:$factor);
field bits<16> Inst;
field bits<16> SoftFail = 0;
bits<8> factor;
let factor{0} = 1; // non-zero initial value
let Inst{15-8} = factor{7-0};
}
def bax : Instruction {
let InOperandList = (ins i32imm:$factor);
field bits<16> Inst;
field bits<16> SoftFail = 0;
bits<33> factor;
let factor{32} = 1; // non-zero initial value
let Inst{15-8} = factor{32-25};
}
}
// CHECK: tmp = fieldFromInstruction(insn, 9, 7) << 1;
// CHECK: tmp = 0x1;
// CHECK: tmp |= fieldFromInstruction(insn, 9, 7) << 1;
// CHECK: tmp = 0x100000000;
// CHECK: tmp |= fieldFromInstruction(insn, 8, 7) << 25;