1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 5e19f2802fe..f4a2f692185 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -12180,6 +12180,12 @@ SDValue X86TargetLowering::LowerRETURNADDR(SDValue Op,
   MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo();
   MFI->setReturnAddressIsTaken(true);
 
+  if (!isa<ConstantSDNode>(Op.getOperand(0))) {
+    DAG.getContext()->emitError("argument to '__builtin_return_address' must "
+                                "be a constant integer");
+    return SDValue();
+  }
+
   unsigned Depth = cast<ConstantSDNode>(Op.getOperand(0))->getZExtValue();
   SDLoc dl(Op);
   EVT PtrVT = getPointerTy();