diff options
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 76187e29116..dfae183723f 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -2155,14 +2155,18 @@ SDValue DAGCombiner::useDivRem(SDNode *Node) { if (Node->use_empty()) return SDValue(); // This is a dead node, leave it alone. + unsigned Opcode = Node->getOpcode(); + bool isSigned = (Opcode == ISD::SDIV) || (Opcode == ISD::SREM); + unsigned DivRemOpc = isSigned ? ISD::SDIVREM : ISD::UDIVREM; + + // DivMod lib calls can still work on non-legal types if using lib-calls. EVT VT = Node->getValueType(0); - if (!TLI.isTypeLegal(VT)) + if (VT.isVector() || !VT.isInteger()) return SDValue(); - unsigned Opcode = Node->getOpcode(); - bool isSigned = (Opcode == ISD::SDIV) || (Opcode == ISD::SREM); + if (!TLI.isTypeLegal(VT) && !TLI.isOperationCustom(DivRemOpc, VT)) + return SDValue(); - unsigned DivRemOpc = isSigned ? ISD::SDIVREM : ISD::UDIVREM; // If DIVREM is going to get expanded into a libcall, // but there is no libcall available, then don't combine. if (!TLI.isOperationLegalOrCustom(DivRemOpc, VT) && |
