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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 | f1518216fd3d524f5bbdab55c62fd216b4be55b5 (patch) | |
| tree | 5c2dc04b13bb4fffaca63f0c3a5de2937c816837 /llvm/lib | |
| parent | 5be3e6ae9d6e8d5e35033bc4dd42d75c8e44b3de (diff) | |
| download | bcm5719-llvm-f1518216fd3d524f5bbdab55c62fd216b4be55b5.tar.gz bcm5719-llvm-f1518216fd3d524f5bbdab55c62fd216b4be55b5.zip | |
Error out on CodeGen of unaligned load/store. Fix test so it isn't accidentally testing that case.
llvm-svn: 139641
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index e0c0fc255cc..4c58fe92266 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/llvm/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()), |
