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- Propagate debug loc info in combineSelectAndUse().
- Modify ReassociateOps so that the resulting SDValue is what the comment claims it is. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63365 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -487,7 +487,12 @@ public:
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///
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SDValue getSetCC(MVT VT, SDValue LHS, SDValue RHS,
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ISD::CondCode Cond) {
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return getNode(ISD::SETCC, VT, LHS, RHS, getCondCode(Cond));
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return getNode(ISD::SETCC, DebugLoc::getUnknownLoc(), VT,
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LHS, RHS, getCondCode(Cond));
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}
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SDValue getSetCC(DebugLoc DL, MVT VT, SDValue LHS, SDValue RHS,
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ISD::CondCode Cond) {
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return getNode(ISD::SETCC, DL, VT, LHS, RHS, getCondCode(Cond));
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}
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/// getVSetCC - Helper function to make it easier to build VSetCC's nodes
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@ -495,7 +500,12 @@ public:
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///
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SDValue getVSetCC(MVT VT, SDValue LHS, SDValue RHS,
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ISD::CondCode Cond) {
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return getNode(ISD::VSETCC, VT, LHS, RHS, getCondCode(Cond));
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return getNode(ISD::VSETCC, DebugLoc::getUnknownLoc(), VT,
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LHS, RHS, getCondCode(Cond));
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}
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SDValue getVSetCC(DebugLoc DL, MVT VT, SDValue LHS, SDValue RHS,
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ISD::CondCode Cond) {
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return getNode(ISD::VSETCC, DL, VT, LHS, RHS, getCondCode(Cond));
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}
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/// getSelectCC - Helper function to make it easier to build SelectCC's if you
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@ -503,8 +513,13 @@ public:
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///
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SDValue getSelectCC(SDValue LHS, SDValue RHS,
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SDValue True, SDValue False, ISD::CondCode Cond) {
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return getNode(ISD::SELECT_CC, True.getValueType(), LHS, RHS, True, False,
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getCondCode(Cond));
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return getNode(ISD::SELECT_CC, DebugLoc::getUnknownLoc(), True.getValueType(),
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LHS, RHS, True, False, getCondCode(Cond));
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}
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SDValue getSelectCC(DebugLoc DL, SDValue LHS, SDValue RHS,
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SDValue True, SDValue False, ISD::CondCode Cond) {
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return getNode(ISD::SELECT_CC, DL, True.getValueType(),
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LHS, RHS, True, False, getCondCode(Cond));
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}
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/// getVAArg - VAArg produces a result and token chain, and takes a pointer
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@ -485,10 +485,10 @@ SDValue DAGCombiner::ReassociateOps(unsigned Opc, DebugLoc DL,
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if (N0.getOpcode() == Opc && isa<ConstantSDNode>(N0.getOperand(1))) {
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if (isa<ConstantSDNode>(N1)) {
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// reassoc. (op (op x, c1), c2) -> (op x, (op c1, c2))
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SDValue OpNode = DAG.getNode(Opc, N0.getDebugLoc(), VT,
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SDValue OpNode = DAG.getNode(Opc, N1.getDebugLoc(), VT,
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N0.getOperand(1), N1);
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AddToWorkList(OpNode.getNode());
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return DAG.getNode(Opc, DL, VT, OpNode, N0.getOperand(0));
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return DAG.getNode(Opc, DL, VT, N0.getOperand(0), OpNode);
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} else if (N0.hasOneUse()) {
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// reassoc. (op (op x, c1), y) -> (op (op x, y), c1) iff x+c1 has one use
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SDValue OpNode = DAG.getNode(Opc, N0.getDebugLoc(), VT,
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@ -504,10 +504,10 @@ SDValue DAGCombiner::ReassociateOps(unsigned Opc, DebugLoc DL,
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SDValue OpNode = DAG.getNode(Opc, N1.getDebugLoc(), VT,
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N1.getOperand(1), N0);
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AddToWorkList(OpNode.getNode());
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return DAG.getNode(Opc, DL, VT, OpNode, N1.getOperand(0));
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return DAG.getNode(Opc, DL, VT, N1.getOperand(0), OpNode);
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} else if (N1.hasOneUse()) {
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// reassoc. (op y, (op x, c1)) -> (op (op x, y), c1) iff x+c1 has one use
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SDValue OpNode = DAG.getNode(Opc, N1.getDebugLoc(), VT,
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SDValue OpNode = DAG.getNode(Opc, N0.getDebugLoc(), VT,
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N1.getOperand(0), N0);
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AddToWorkList(OpNode.getNode());
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return DAG.getNode(Opc, DL, VT, OpNode, N1.getOperand(1));
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@ -913,18 +913,24 @@ SDValue DAGCombiner::visitMERGE_VALUES(SDNode *N) {
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}
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static
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SDValue combineShlAddConstant(SDValue N0, SDValue N1, SelectionDAG &DAG) {
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SDValue combineShlAddConstant(DebugLoc DL, SDValue N0, SDValue N1,
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SelectionDAG &DAG) {
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MVT VT = N0.getValueType();
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SDValue N00 = N0.getOperand(0);
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SDValue N01 = N0.getOperand(1);
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ConstantSDNode *N01C = dyn_cast<ConstantSDNode>(N01);
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if (N01C && N00.getOpcode() == ISD::ADD && N00.getNode()->hasOneUse() &&
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isa<ConstantSDNode>(N00.getOperand(1))) {
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N0 = DAG.getNode(ISD::ADD, VT,
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DAG.getNode(ISD::SHL, VT, N00.getOperand(0), N01),
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DAG.getNode(ISD::SHL, VT, N00.getOperand(1), N01));
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return DAG.getNode(ISD::ADD, VT, N0, N1);
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// fold (add (shl (add x, c1), c2), ) -> (add (add (shl x, c2), c1<<c2), )
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N0 = DAG.getNode(ISD::ADD, N0.getDebugLoc(), VT,
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DAG.getNode(ISD::SHL, N00.getDebugLoc(), VT,
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N00.getOperand(0), N01),
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DAG.getNode(ISD::SHL, N01.getDebugLoc(), VT,
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N00.getOperand(1), N01));
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return DAG.getNode(ISD::ADD, DL, VT, N0, N1);
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}
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return SDValue();
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}
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@ -973,15 +979,16 @@ SDValue combineSelectAndUse(SDNode *N, SDValue Slct, SDValue OtherOp,
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}
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if (DoXform) {
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SDValue Result = DAG.getNode(Opc, VT, OtherOp, RHS);
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SDValue Result = DAG.getNode(Opc, RHS.getDebugLoc(), VT, OtherOp, RHS);
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if (isSlctCC)
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return DAG.getSelectCC(OtherOp, Result,
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return DAG.getSelectCC(N->getDebugLoc(), OtherOp, Result,
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Slct.getOperand(0), Slct.getOperand(1), CC);
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SDValue CCOp = Slct.getOperand(0);
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if (InvCC)
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CCOp = DAG.getSetCC(CCOp.getValueType(), CCOp.getOperand(0),
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CCOp.getOperand(1), CC);
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return DAG.getNode(ISD::SELECT, VT, CCOp, OtherOp, Result);
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CCOp = DAG.getSetCC(Slct.getDebugLoc(), CCOp.getValueType(),
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CCOp.getOperand(0), CCOp.getOperand(1), CC);
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return DAG.getNode(ISD::SELECT, N->getDebugLoc(), VT,
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CCOp, OtherOp, Result);
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}
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return SDValue();
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}
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@ -1100,11 +1107,11 @@ SDValue DAGCombiner::visitADD(SDNode *N) {
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// fold (add (shl (add x, c1), c2), ) -> (add (add (shl x, c2), c1<<c2), )
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if (N0.getOpcode() == ISD::SHL && N0.getNode()->hasOneUse()) {
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SDValue Result = combineShlAddConstant(N0, N1, DAG);
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SDValue Result = combineShlAddConstant(N->getDebugLoc(), N0, N1, DAG);
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if (Result.getNode()) return Result;
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}
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if (N1.getOpcode() == ISD::SHL && N1.getNode()->hasOneUse()) {
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SDValue Result = combineShlAddConstant(N1, N0, DAG);
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SDValue Result = combineShlAddConstant(N->getDebugLoc(), N1, N0, DAG);
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if (Result.getNode()) return Result;
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}
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