diff options
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/SelectionDAGAddressAnalysis.cpp')
-rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAGAddressAnalysis.cpp | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGAddressAnalysis.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGAddressAnalysis.cpp index cd256efd4c3..4e899ae6668 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGAddressAnalysis.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGAddressAnalysis.cpp @@ -60,18 +60,12 @@ BaseIndexOffset BaseIndexOffset::match(SDValue Ptr, const SelectionDAG &DAG) { int64_t Offset = 0; bool IsIndexSignExt = false; - // Consume constant adds & ors with appropriate masking. - while (Base->getOpcode() == ISD::ADD || Base->getOpcode() == ISD::OR) { - if (auto *C = dyn_cast<ConstantSDNode>(Base->getOperand(1))) { - // Only consider ORs which act as adds. - if (Base->getOpcode() == ISD::OR && - !DAG.MaskedValueIsZero(Base->getOperand(0), C->getAPIntValue())) - break; - Offset += C->getSExtValue(); - Base = Base->getOperand(0); - continue; - } - break; + // Consume constant adds + while (Base->getOpcode() == ISD::ADD && + isa<ConstantSDNode>(Base->getOperand(1))) { + int64_t POffset = cast<ConstantSDNode>(Base->getOperand(1))->getSExtValue(); + Offset += POffset; + Base = Base->getOperand(0); } if (Base->getOpcode() == ISD::ADD) { |