diff options
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 6ade4623751..203cb0b46a1 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -1898,20 +1898,19 @@ SDValue SelectionDAG::expandVAArg(SDNode *Node) { EVT VT = Node->getValueType(0); SDValue Tmp1 = Node->getOperand(0); SDValue Tmp2 = Node->getOperand(1); - unsigned Align = Node->getConstantOperandVal(3); + const llvm::MaybeAlign MA(Node->getConstantOperandVal(3)); SDValue VAListLoad = getLoad(TLI.getPointerTy(getDataLayout()), dl, Tmp1, Tmp2, MachinePointerInfo(V)); SDValue VAList = VAListLoad; - if (Align > TLI.getMinStackArgumentAlignment()) { - assert(((Align & (Align-1)) == 0) && "Expected Align to be a power of 2"); - + if (MA && *MA > TLI.getMinStackArgumentAlignment()) { VAList = getNode(ISD::ADD, dl, VAList.getValueType(), VAList, - getConstant(Align - 1, dl, VAList.getValueType())); + getConstant(MA->value() - 1, dl, VAList.getValueType())); - VAList = getNode(ISD::AND, dl, VAList.getValueType(), VAList, - getConstant(-(int64_t)Align, dl, VAList.getValueType())); + VAList = + getNode(ISD::AND, dl, VAList.getValueType(), VAList, + getConstant(-(int64_t)MA->value(), dl, VAList.getValueType())); } // Increment the pointer, VAList, to the next vaarg |
