aboutsummaryrefslogtreecommitdiff
path: root/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp')
-rw-r--r--lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp27
1 files changed, 0 insertions, 27 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp b/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
index 767b774da2..0f7359d832 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
@@ -1051,8 +1051,6 @@ void DAGTypeLegalizer::ExpandIntegerResult(SDNode *N, unsigned ResNo) {
case ISD::SSUBO: ExpandIntRes_SADDSUBO(N, Lo, Hi); break;
case ISD::UADDO:
case ISD::USUBO: ExpandIntRes_UADDSUBO(N, Lo, Hi); break;
- case ISD::UMULO:
- case ISD::SMULO: ExpandIntRes_UMULSMULO(N, Lo, Hi); break;
}
// If Lo/Hi is null, the sub-method took care of registering results etc.
@@ -2128,31 +2126,6 @@ void DAGTypeLegalizer::ExpandIntRes_UADDSUBO(SDNode *N,
ReplaceValueWith(SDValue(N, 1), Ofl);
}
-void DAGTypeLegalizer::ExpandIntRes_UMULSMULO(SDNode *N,
- SDValue &Lo, SDValue &Hi) {
- SDValue LHS = N->getOperand(0);
- SDValue RHS = N->getOperand(1);
- DebugLoc dl = N->getDebugLoc();
- EVT VT = N->getValueType(0);
- EVT HalfVT = EVT::getIntegerVT(*DAG.getContext(), VT.getSizeInBits() / 2);
- // Expand the result by simply replacing it with the equivalent
- // non-overflow-checking operation.
- SDValue Ret = DAG.getNode(ISD::MUL, dl, LHS.getValueType(), LHS, RHS);
- SplitInteger(Ret, Lo, Hi);
-
- // Now calculate overflow.
- SDValue Ofl;
- if (N->getOpcode() == ISD::UMULO)
- Ofl = DAG.getSetCC(dl, N->getValueType(1), Hi,
- DAG.getConstant(0, VT), ISD::SETNE);
- else {
- SDValue Tmp = DAG.getConstant(VT.getSizeInBits() - 1, HalfVT);
- Tmp = DAG.getNode(ISD::SRA, dl, HalfVT, Lo, Tmp);
- Ofl = DAG.getSetCC(dl, N->getValueType(1), Hi, Tmp, ISD::SETNE);
- }
- ReplaceValueWith(SDValue(N, 1), Ofl);
-}
-
void DAGTypeLegalizer::ExpandIntRes_UDIV(SDNode *N,
SDValue &Lo, SDValue &Hi) {
EVT VT = N->getValueType(0);