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Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp')
-rw-r--r--llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp28
1 files changed, 12 insertions, 16 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index fa867fcec36..559328bf9ad 100644
--- a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -3465,9 +3465,7 @@ SDValue TargetLowering::BuildSDIVPow2(SDNode *N, const APInt &Divisor,
/// Ref: "Hacker's Delight" or "The PowerPC Compiler Writer's Guide".
SDValue TargetLowering::BuildSDIV(SDNode *N, const APInt &Divisor,
SelectionDAG &DAG, bool IsAfterLegalization,
- std::vector<SDNode *> *Created) const {
- assert(Created && "No vector to hold sdiv ops.");
-
+ std::vector<SDNode *> &Created) const {
EVT VT = N->getValueType(0);
SDLoc dl(N);
@@ -3478,7 +3476,7 @@ SDValue TargetLowering::BuildSDIV(SDNode *N, const APInt &Divisor,
// If the sdiv has an 'exact' bit we can use a simpler lowering.
if (N->getFlags().hasExact())
- return BuildExactSDIV(*this, N->getOperand(0), Divisor, dl, DAG, *Created);
+ return BuildExactSDIV(*this, N->getOperand(0), Divisor, dl, DAG, Created);
APInt::ms magics = Divisor.magic();
@@ -3499,12 +3497,12 @@ SDValue TargetLowering::BuildSDIV(SDNode *N, const APInt &Divisor,
// If d > 0 and m < 0, add the numerator
if (Divisor.isStrictlyPositive() && magics.m.isNegative()) {
Q = DAG.getNode(ISD::ADD, dl, VT, Q, N->getOperand(0));
- Created->push_back(Q.getNode());
+ Created.push_back(Q.getNode());
}
// If d < 0 and m > 0, subtract the numerator.
if (Divisor.isNegative() && magics.m.isStrictlyPositive()) {
Q = DAG.getNode(ISD::SUB, dl, VT, Q, N->getOperand(0));
- Created->push_back(Q.getNode());
+ Created.push_back(Q.getNode());
}
auto &DL = DAG.getDataLayout();
// Shift right algebraic if shift value is nonzero
@@ -3512,14 +3510,14 @@ SDValue TargetLowering::BuildSDIV(SDNode *N, const APInt &Divisor,
Q = DAG.getNode(
ISD::SRA, dl, VT, Q,
DAG.getConstant(magics.s, dl, getShiftAmountTy(Q.getValueType(), DL)));
- Created->push_back(Q.getNode());
+ Created.push_back(Q.getNode());
}
// Extract the sign bit and add it to the quotient
SDValue T =
DAG.getNode(ISD::SRL, dl, VT, Q,
DAG.getConstant(VT.getScalarSizeInBits() - 1, dl,
getShiftAmountTy(Q.getValueType(), DL)));
- Created->push_back(T.getNode());
+ Created.push_back(T.getNode());
return DAG.getNode(ISD::ADD, dl, VT, Q, T);
}
@@ -3529,9 +3527,7 @@ SDValue TargetLowering::BuildSDIV(SDNode *N, const APInt &Divisor,
/// Ref: "Hacker's Delight" or "The PowerPC Compiler Writer's Guide".
SDValue TargetLowering::BuildUDIV(SDNode *N, const APInt &Divisor,
SelectionDAG &DAG, bool IsAfterLegalization,
- std::vector<SDNode *> *Created) const {
- assert(Created && "No vector to hold udiv ops.");
-
+ std::vector<SDNode *> &Created) const {
EVT VT = N->getValueType(0);
SDLoc dl(N);
auto &DL = DAG.getDataLayout();
@@ -3554,7 +3550,7 @@ SDValue TargetLowering::BuildUDIV(SDNode *N, const APInt &Divisor,
Q = DAG.getNode(
ISD::SRL, dl, VT, Q,
DAG.getConstant(Shift, dl, getShiftAmountTy(Q.getValueType(), DL)));
- Created->push_back(Q.getNode());
+ Created.push_back(Q.getNode());
// Get magic number for the shifted divisor.
magics = Divisor.lshr(Shift).magicu(Shift);
@@ -3573,7 +3569,7 @@ SDValue TargetLowering::BuildUDIV(SDNode *N, const APInt &Divisor,
else
return SDValue(); // No mulhu or equivalent
- Created->push_back(Q.getNode());
+ Created.push_back(Q.getNode());
if (magics.a == 0) {
assert(magics.s < Divisor.getBitWidth() &&
@@ -3583,13 +3579,13 @@ SDValue TargetLowering::BuildUDIV(SDNode *N, const APInt &Divisor,
DAG.getConstant(magics.s, dl, getShiftAmountTy(Q.getValueType(), DL)));
} else {
SDValue NPQ = DAG.getNode(ISD::SUB, dl, VT, N->getOperand(0), Q);
- Created->push_back(NPQ.getNode());
+ Created.push_back(NPQ.getNode());
NPQ = DAG.getNode(
ISD::SRL, dl, VT, NPQ,
DAG.getConstant(1, dl, getShiftAmountTy(NPQ.getValueType(), DL)));
- Created->push_back(NPQ.getNode());
+ Created.push_back(NPQ.getNode());
NPQ = DAG.getNode(ISD::ADD, dl, VT, NPQ, Q);
- Created->push_back(NPQ.getNode());
+ Created.push_back(NPQ.getNode());
return DAG.getNode(
ISD::SRL, dl, VT, NPQ,
DAG.getConstant(magics.s - 1, dl,
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