diff options
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 3 | ||||
| -rw-r--r-- | llvm/lib/CodeGen/TargetLoweringBase.cpp | 1 |
2 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index f3addf05566..2dc9a728b65 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -4138,7 +4138,8 @@ void SelectionDAGBuilder::visitAtomicLoad(const LoadInst &I) { const TargetLowering &TLI = DAG.getTargetLoweringInfo(); EVT VT = TLI.getValueType(DAG.getDataLayout(), I.getType()); - if (I.getAlignment() < VT.getStoreSize()) + if (!TLI.supportsUnalignedAtomics() && + I.getAlignment() < VT.getStoreSize()) report_fatal_error("Cannot generate unaligned atomic load"); MachineMemOperand *MMO = diff --git a/llvm/lib/CodeGen/TargetLoweringBase.cpp b/llvm/lib/CodeGen/TargetLoweringBase.cpp index 3c684974df8..22a43ab8ac5 100644 --- a/llvm/lib/CodeGen/TargetLoweringBase.cpp +++ b/llvm/lib/CodeGen/TargetLoweringBase.cpp @@ -520,6 +520,7 @@ TargetLoweringBase::TargetLoweringBase(const TargetMachine &tm) : TM(tm) { MaxAtomicSizeInBitsSupported = 1024; MinCmpXchgSizeInBits = 0; + SupportsUnalignedAtomics = false; std::fill(std::begin(LibcallRoutineNames), std::end(LibcallRoutineNames), nullptr); |
