1 files changed, 6 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index a3fb34576a..5b733a873f 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -5049,6 +5049,12 @@ void SelectionDAGBuilder::LowerCallTo(CallSite CS, SDValue Callee,
     // used to detect deletion of the invoke via the MachineModuleInfo.
     BeginLabel = MMI->NextLabelID();
 
+    // Keep track of which landing pads go with which invokes. SjLj uses
+    // this to maintain the ordering of pads in the LSDA. Dwarf ignores it.
+    Function *F = LandingPad->getParent()->getFunction();
+    MMI->setCallSiteBeginLabel(BeginLabel,
+                               F->getCallSiteNumber(CS.getInstruction()));
+
     // Both PendingLoads and PendingExports must be flushed here;
     // this call might not return.
     (void)getRoot();