let EncoderMethod = "getMemEncoding";
}
+//
+// RI instruction format
+//
+
+
+class F2RI16_ins<bits<5> _op, string asmstr,
+ InstrItinClass itin>:
+ FRI16<_op, (outs CPU16Regs:$rx), (ins CPU16Regs:$rx_, simm16:$imm),
+ !strconcat(asmstr, "\t$rx, $imm\t# 16 bit inst"), [], itin> {
+ let Constraints = "$rx_ = $rx";
+}
+
//
// Compare a register and immediate and place result in CC
// Implicit use of T8
//
def AddiuRxImmX16: FEXT_RI16_ins<0b01001, "addiu", IIAlu>;
+def AddiuRxRxImm16: F2RI16_ins<0b01001, "addiu", IIAlu>,
+ ArithLogic16Defs<0> {
+ let AddedComplexity = 5;
+}
def AddiuRxRxImmX16: FEXT_2RI16_ins<0b01001, "addiu", IIAlu>,
ArithLogic16Defs<0>;
Mips16Pat<(OpNode CPU16Regs:$in, imm_type:$imm),
(I CPU16Regs:$in, imm_type:$imm)>;
+def: ArithLogicI16_pat<add, immSExt8, AddiuRxRxImm16>;
def: ArithLogicI16_pat<add, immSExt16, AddiuRxRxImmX16>;
def: ArithLogicI16_pat<shl, immZExt5, SllX16>;
def: ArithLogicI16_pat<srl, immZExt5, SrlX16>;