// Thumb-1 cannot currently select ARMISD::SUBE.
if (!Subtarget->isThumb1Only())
- setOperationAction(ISD::SETCCE, MVT::i32, Custom);
+ setOperationAction(ISD::SETCCCARRY, MVT::i32, Custom);
setOperationAction(ISD::BRCOND, MVT::Other, Custom);
setOperationAction(ISD::BR_CC, MVT::i32, Custom);
return Result;
}
-static SDValue LowerSETCCE(SDValue Op, SelectionDAG &DAG) {
+static SDValue LowerSETCCCARRY(SDValue Op, SelectionDAG &DAG) {
SDValue LHS = Op.getOperand(0);
SDValue RHS = Op.getOperand(1);
SDValue Carry = Op.getOperand(2);
SDValue Cond = Op.getOperand(3);
SDLoc DL(Op);
- assert(LHS.getSimpleValueType().isInteger() && "SETCCE is integer only.");
+ assert(LHS.getSimpleValueType().isInteger() && "SETCCCARRY is integer only.");
+
+ // ARMISD::SUBE expects a carry not a borrow like ISD::SUBCARRY so we
+ // have to invert the carry first.
+ Carry = DAG.getNode(ISD::SUB, DL, MVT::i32,
+ DAG.getConstant(1, DL, MVT::i32), Carry);
+ // This converts the boolean value carry into the carry flag.
+ Carry = ConvertBooleanCarryToCarryFlag(Carry, DAG);
- assert(Carry.getOpcode() != ISD::CARRY_FALSE);
SDVTList VTs = DAG.getVTList(LHS.getValueType(), MVT::i32);
SDValue Cmp = DAG.getNode(ARMISD::SUBE, DL, VTs, LHS, RHS, Carry);
case ISD::CTTZ_ZERO_UNDEF: return LowerCTTZ(Op.getNode(), DAG, Subtarget);
case ISD::CTPOP: return LowerCTPOP(Op.getNode(), DAG, Subtarget);
case ISD::SETCC: return LowerVSETCC(Op, DAG);
- case ISD::SETCCE: return LowerSETCCE(Op, DAG);
+ case ISD::SETCCCARRY: return LowerSETCCCARRY(Op, DAG);
case ISD::ConstantFP: return LowerConstantFP(Op, DAG, Subtarget);
case ISD::BUILD_VECTOR: return LowerBUILD_VECTOR(Op, DAG, Subtarget);
case ISD::VECTOR_SHUFFLE: return LowerVECTOR_SHUFFLE(Op, DAG);
}
}
}
+
return SDValue();
}