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| author | Eli Friedman <eli.friedman@gmail.com> | 2011-07-27 22:21:52 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2011-07-27 22:21:52 +0000 |
| commit | 14648468011c92a4210f8118721d58c25043daf8 (patch) | |
| tree | 287882ae779b0bd87f8e9a7996fae00d99785a59 /lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | |
| parent | 144da2c8f03834e76ddb617498be7ed864a5c192 (diff) | |
| download | external_llvm-14648468011c92a4210f8118721d58c25043daf8.tar.gz external_llvm-14648468011c92a4210f8118721d58c25043daf8.tar.bz2 external_llvm-14648468011c92a4210f8118721d58c25043daf8.zip | |
Code generation for 'fence' instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136283 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/LegalizeDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index aadfa26420..a3dd36e288 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -2955,8 +2955,10 @@ void SelectionDAGLegalize::ExpandNode(SDNode *Node, Results.push_back(DAG.getConstant(0, MVT::i32)); Results.push_back(Node->getOperand(0)); break; + case ISD::ATOMIC_FENCE: case ISD::MEMBARRIER: { // If the target didn't lower this, lower it to '__sync_synchronize()' call + // FIXME: handle "fence singlethread" more efficiently. TargetLowering::ArgListTy Args; std::pair<SDValue, SDValue> CallResult = TLI.LowerCallTo(Node->getOperand(0), Type::getVoidTy(*DAG.getContext()), |