const { return 0; }
unsigned getBitfieldInvertedMaskOpValue(const MachineInstr &MI,
unsigned Op) const { return 0; }
+ uint32_t getLdStmModeOpValue(const MachineInstr &MI, unsigned OpIdx)
+ const {return 0; }
uint32_t getLdStSORegOpValue(const MachineInstr &MI, unsigned OpIdx)
const { return 0; }
asm, cstr, pattern> {
bits<16> dsts;
bits<4> Rn;
+ bits<2> amode;
let Inst{27-25} = 0b100;
- let Inst{24-22} = 0b010;
+ let Inst{24-23} = amode;
+ let Inst{22} = 0; // S bit
let Inst{20} = 1; // L bit
let Inst{19-16} = Rn;
let Inst{15-0} = dsts;
// ldstm_mode := {ia, ib, da, db}
//
def ldstm_mode : OptionalDefOperand<OtherVT, (ops i32), (ops (i32 1))> {
+ string EncoderMethod = "getLdStmModeOpValue";
let PrintMethod = "printLdStmModeOperand";
}
uint32_t getLdStSORegOpValue(const MCInst &MI, unsigned OpIdx,
SmallVectorImpl<MCFixup> &Fixups) const;
+ /// getLdStmModeOpValue - Return encoding for load/store multiple mode.
+ uint32_t getLdStmModeOpValue(const MCInst &MI, unsigned OpIdx,
+ SmallVectorImpl<MCFixup> &Fixups) const {
+ ARM_AM::AMSubMode Mode = (ARM_AM::AMSubMode)MI.getOperand(OpIdx).getImm();
+ switch (Mode) {
+ default: assert(0 && "Unknown addressing sub-mode!");
+ case ARM_AM::da: return 0;
+ case ARM_AM::ia: return 1;
+ case ARM_AM::db: return 2;
+ case ARM_AM::ib: return 3;
+ }
+ }
+
/// getAddrMode5OpValue - Return encoding info for 'reg +/- imm8' operand.
uint32_t getAddrMode5OpValue(const MCInst &MI, unsigned OpIdx,
SmallVectorImpl<MCFixup> &Fixups) const;