Rename "ADDO" to "SADDO" and "UADDO". The "UADDO" isn't equivalent to "ADDC"
because the boolean it returns to indicate an overflow may not be treated like as a flag. It could be stored to memory, for instance. llvm-svn: 59780
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@ -250,13 +250,14 @@ namespace ISD {
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// values.
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// values.
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ADDE, SUBE,
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ADDE, SUBE,
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// RESULT, OVERFLOW_FLAG, OUTCHAIN = ADDO(INCHAIN, LHS, RHS) -
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// RESULT, BOOL, OUTCHAIN = [SU]ADDO(INCHAIN, LHS, RHS) - Overflow-aware
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// Overflow-aware node for arithmetic operations. This node takes two
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// node for arithmetic operations. This node takes two operands: the normal
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// operands: the normal lhs and rhs to the add. It produces two results: the
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// lhs and rhs to the add. It produces two results: the normal result of the
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// normal result of the add, and a flag indicating whether an overflow
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// add, and a boolean to indicate if an overflow occured (this isn't a flag,
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// occured. This node is generated from the llvm.sadd.with.overflow
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// because it may be stored to memory, etc.). This node is generated from
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// intrinsic. It is lowered by target-dependent code.
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// the llvm.sadd.with.overflow intrinsic. It is lowered by target-dependent
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ADDO,
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// code.
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SADDO, UADDO,
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// Simple binary floating point operators.
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// Simple binary floating point operators.
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FADD, FSUB, FMUL, FDIV, FREM,
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FADD, FSUB, FMUL, FDIV, FREM,
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@ -190,7 +190,8 @@ namespace {
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SDValue visitBUILD_VECTOR(SDNode *N);
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SDValue visitBUILD_VECTOR(SDNode *N);
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SDValue visitCONCAT_VECTORS(SDNode *N);
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SDValue visitCONCAT_VECTORS(SDNode *N);
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SDValue visitVECTOR_SHUFFLE(SDNode *N);
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SDValue visitVECTOR_SHUFFLE(SDNode *N);
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SDValue visitADDO(SDNode *N);
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SDValue visitSADDO(SDNode *N);
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SDValue visitUADDO(SDNode *N);
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SDValue XformToShuffleWithZero(SDNode *N);
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SDValue XformToShuffleWithZero(SDNode *N);
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SDValue ReassociateOps(unsigned Opc, SDValue LHS, SDValue RHS);
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SDValue ReassociateOps(unsigned Opc, SDValue LHS, SDValue RHS);
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@ -728,7 +729,8 @@ SDValue DAGCombiner::visit(SDNode *N) {
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case ISD::BUILD_VECTOR: return visitBUILD_VECTOR(N);
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case ISD::BUILD_VECTOR: return visitBUILD_VECTOR(N);
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case ISD::CONCAT_VECTORS: return visitCONCAT_VECTORS(N);
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case ISD::CONCAT_VECTORS: return visitCONCAT_VECTORS(N);
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case ISD::VECTOR_SHUFFLE: return visitVECTOR_SHUFFLE(N);
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case ISD::VECTOR_SHUFFLE: return visitVECTOR_SHUFFLE(N);
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case ISD::ADDO: return visitADDO(N);
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case ISD::SADDO: return visitSADDO(N);
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case ISD::UADDO: return visitUADDO(N);
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}
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}
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return SDValue();
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return SDValue();
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}
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}
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@ -5145,7 +5147,7 @@ SDValue DAGCombiner::visitVECTOR_SHUFFLE(SDNode *N) {
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return SDValue();
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return SDValue();
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}
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}
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SDValue DAGCombiner::visitADDO(SDNode *N) {
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SDValue DAGCombiner::visitSADDO(SDNode *N) {
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SDValue Chain = N->getOperand(2);
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SDValue Chain = N->getOperand(2);
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SDValue LHS = N->getOperand(0);
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SDValue LHS = N->getOperand(0);
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SDValue RHS = N->getOperand(1);
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SDValue RHS = N->getOperand(1);
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@ -5173,6 +5175,10 @@ SDValue DAGCombiner::visitADDO(SDNode *N) {
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return SDValue(N, 0);
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return SDValue(N, 0);
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}
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}
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SDValue DAGCombiner::visitUADDO(SDNode *N) {
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return SDValue();
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}
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/// XformToShuffleWithZero - Returns a vector_shuffle if it able to transform
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/// XformToShuffleWithZero - Returns a vector_shuffle if it able to transform
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/// an AND to a vector_shuffle with the destination vector and a zero vector.
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/// an AND to a vector_shuffle with the destination vector and a zero vector.
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/// e.g. AND V, <0xffffffff, 0, 0xffffffff, 0>. ==>
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/// e.g. AND V, <0xffffffff, 0, 0xffffffff, 0>. ==>
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@ -5151,7 +5151,8 @@ std::string SDNode::getOperationName(const SelectionDAG *G) const {
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case ISD::CARRY_FALSE: return "carry_false";
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case ISD::CARRY_FALSE: return "carry_false";
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case ISD::ADDC: return "addc";
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case ISD::ADDC: return "addc";
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case ISD::ADDE: return "adde";
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case ISD::ADDE: return "adde";
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case ISD::ADDO: return "addo";
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case ISD::SADDO: return "saddo";
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case ISD::UADDO: return "uaddo";
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case ISD::SUBC: return "subc";
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case ISD::SUBC: return "subc";
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case ISD::SUBE: return "sube";
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case ISD::SUBE: return "sube";
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case ISD::SHL_PARTS: return "shl_parts";
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case ISD::SHL_PARTS: return "shl_parts";
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@ -4094,7 +4094,7 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
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}
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}
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case Intrinsic::sadd_with_overflow: {
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case Intrinsic::sadd_with_overflow: {
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// Convert to "ISD::ADDO" instruction.
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// Convert to "ISD::SADDO" instruction.
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SDValue Chain = getRoot();
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SDValue Chain = getRoot();
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SDValue Op1 = getValue(I.getOperand(1));
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SDValue Op1 = getValue(I.getOperand(1));
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SDValue Op2 = getValue(I.getOperand(2));
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SDValue Op2 = getValue(I.getOperand(2));
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@ -4103,7 +4103,7 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
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MVT ValueVTs[] = { Ty, MVT::i1, MVT::Other };
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MVT ValueVTs[] = { Ty, MVT::i1, MVT::Other };
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SDValue Ops[] = { Op1, Op2, Chain };
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SDValue Ops[] = { Op1, Op2, Chain };
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SDValue Result = DAG.getNode(ISD::ADDO, DAG.getVTList(&ValueVTs[0], 3),
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SDValue Result = DAG.getNode(ISD::SADDO, DAG.getVTList(&ValueVTs[0], 3),
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&Ops[0], 3);
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&Ops[0], 3);
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setValue(&I, Result);
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setValue(&I, Result);
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@ -4113,7 +4113,7 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
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return 0;
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return 0;
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}
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}
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case Intrinsic::uadd_with_overflow: {
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case Intrinsic::uadd_with_overflow: {
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// TODO: Convert to "ISD::ADDC" instruction.
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// TODO: Convert to "ISD::UADDO" instruction.
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return 0;
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return 0;
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}
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}
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