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| author | Eli Friedman <eli.friedman@gmail.com> | 2011-09-13 20:50:54 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2011-09-13 20:50:54 +0000 |
| commit | fe731214d2529f7b30527fc312964af411867dd0 (patch) | |
| tree | d9b8608e93da3dadec9d22943591070982464845 /lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | |
| parent | 7782a58b87923cc293d4e4422729ac0a582bb5c1 (diff) | |
Error out on CodeGen of unaligned load/store. Fix test so it isn't accidentally testing that case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139641 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index e0c0fc255c..4c58fe9226 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -3402,6 +3402,9 @@ void SelectionDAGBuilder::visitAtomicLoad(const LoadInst &I) { EVT VT = EVT::getEVT(I.getType()); + if (I.getAlignment() * 8 != VT.getSizeInBits()) + report_fatal_error("Cannot generate unaligned atomic load"); + SDValue L = DAG.getAtomic(ISD::ATOMIC_LOAD, dl, VT, VT, InChain, getValue(I.getPointerOperand()), @@ -3427,13 +3430,17 @@ void SelectionDAGBuilder::visitAtomicStore(const StoreInst &I) { SDValue InChain = getRoot(); + EVT VT = EVT::getEVT(I.getValueOperand()->getType()); + + if (I.getAlignment() * 8 != VT.getSizeInBits()) + report_fatal_error("Cannot generate unaligned atomic store"); + if (TLI.getInsertFencesForAtomic()) InChain = InsertFenceForAtomic(InChain, Order, Scope, true, dl, DAG, TLI); SDValue OutChain = - DAG.getAtomic(ISD::ATOMIC_STORE, dl, - getValue(I.getValueOperand()).getValueType().getSimpleVT(), + DAG.getAtomic(ISD::ATOMIC_STORE, dl, VT, InChain, getValue(I.getPointerOperand()), getValue(I.getValueOperand()), |