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
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index e0c0fc2..4c58fe9 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -3402,6 +3402,9 @@
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 @@
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()),