+
+let hasSideEffects = 0, hasNewValue = 1, isCompare = 1, InputType = "reg" in
+class T_ALU32_3op_cmp<string mnemonic, bits<2> MinOp, bit IsNeg, bit IsComm>
+ : ALU32_rr<(outs PredRegs:$Pd), (ins IntRegs:$Rs, IntRegs:$Rt),
+ "$Pd = "#mnemonic#"($Rs, $Rt)",
+ [], "", ALU32_3op_tc_1_SLOT0123>, ImmRegRel {
+ let CextOpcode = mnemonic;
+ let isCommutable = IsComm;
+ bits<5> Rs;
+ bits<5> Rt;
+ bits<2> Pd;
+
+ let IClass = 0b1111;
+ let Inst{27-24} = 0b0010;
+ let Inst{22-21} = MinOp;
+ let Inst{20-16} = Rs;
+ let Inst{12-8} = Rt;
+ let Inst{4} = IsNeg;
+ let Inst{3-2} = 0b00;
+ let Inst{1-0} = Pd;
+}
+
+let Itinerary = ALU32_3op_tc_2early_SLOT0123 in {
+ def C2_cmpeq : T_ALU32_3op_cmp< "cmp.eq", 0b00, 0, 1>;
+ def C2_cmpgt : T_ALU32_3op_cmp< "cmp.gt", 0b10, 0, 0>;
+ def C2_cmpgtu : T_ALU32_3op_cmp< "cmp.gtu", 0b11, 0, 0>;
+}
+
+// Patfrag to convert the usual comparison patfrags (e.g. setlt) to ones
+// that reverse the order of the operands.
+class RevCmp<PatFrag F> : PatFrag<(ops node:$rhs, node:$lhs), F.Fragment>;
+
+// Pats for compares. They use PatFrags as operands, not SDNodes,
+// since seteq/setgt/etc. are defined as ParFrags.
+class T_cmp32_rr_pat<InstHexagon MI, PatFrag Op, ValueType VT>
+ : Pat<(VT (Op (i32 IntRegs:$Rs), (i32 IntRegs:$Rt))),
+ (VT (MI IntRegs:$Rs, IntRegs:$Rt))>;
+
+def: T_cmp32_rr_pat<C2_cmpeq, seteq, i1>;
+def: T_cmp32_rr_pat<C2_cmpgt, setgt, i1>;
+def: T_cmp32_rr_pat<C2_cmpgtu, setugt, i1>;
+
+def: T_cmp32_rr_pat<C2_cmpgt, RevCmp<setlt>, i1>;
+def: T_cmp32_rr_pat<C2_cmpgtu, RevCmp<setult>, i1>;
+
projects / oota-llvm.git / commitdiff