Index: lib/Target/X86/X86ISelLowering.cpp
===================================================================
--- lib/Target/X86/X86ISelLowering.cpp
+++ lib/Target/X86/X86ISelLowering.cpp
@@ -2999,6 +2999,10 @@
       // argument is in memory, the rest will also be in memory.
       int FI = MFI.CreateFixedObject(ArgVT.getStoreSize(), VA.getLocMemOffset(),
                                      /*Immutable=*/false);
+      // Adjust SP offset of interrupt parameter.
+      if (CallConv == CallingConv::X86_INTR) {
+        MFI.setObjectOffset(FI, Offset);
+      }                                     
       PartAddr = DAG.getFrameIndex(FI, PtrVT);
       return DAG.getLoad(
           ValVT, dl, Chain, PartAddr,
@@ -3021,6 +3025,10 @@
         SDValue Addr =
             DAG.getNode(ISD::ADD, dl, PtrVT, DAG.getFrameIndex(FI, PtrVT),
                         DAG.getIntPtrConstant(Ins[i].PartOffset, dl));
+        // Adjust SP offset of interrupt parameter.
+        if (CallConv == CallingConv::X86_INTR) {
+          MFI.setObjectOffset(FI, Offset);
+        }
         return DAG.getLoad(
             ValVT, dl, Chain, Addr,
             MachinePointerInfo::getFixedStack(DAG.getMachineFunction(), FI,