Code generation for 'fence' instruction.
llvm-svn: 136283
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index bdddca3..67707c6 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -3221,7 +3221,12 @@
}
void SelectionDAGBuilder::visitFence(const FenceInst &I) {
- llvm_unreachable("Not implemented yet");
+ DebugLoc dl = getCurDebugLoc();
+ SDValue Ops[3];
+ Ops[0] = getRoot();
+ Ops[1] = DAG.getConstant(I.getOrdering(), TLI.getPointerTy());
+ Ops[2] = DAG.getConstant(I.getSynchScope(), TLI.getPointerTy());
+ DAG.setRoot(DAG.getNode(ISD::ATOMIC_FENCE, dl, MVT::Other, Ops, 3));
}
/// visitTargetIntrinsic - Lower a call of a target intrinsic to an INTRINSIC