Index: include/llvm/CodeGen/CallingConvLower.h
===================================================================
--- include/llvm/CodeGen/CallingConvLower.h
+++ include/llvm/CodeGen/CallingConvLower.h
@@ -201,6 +201,7 @@
   unsigned MaxStackArgAlign;
   SmallVector<uint32_t, 16> UsedRegs;
   SmallVector<CCValAssign, 4> PendingLocs;
+  SmallVector<ISD::ArgFlagsTy, 4> PendingArgFlags;
 
   // ByValInfo and SmallVector<ByValInfo, 4> ByValRegs:
   //
@@ -503,11 +504,16 @@
     InRegsParamsProcessed = 0;
   }
 
-  // Get list of pending assignments
+  // Get list of pending assignments.
   SmallVectorImpl<CCValAssign> &getPendingLocs() {
     return PendingLocs;
   }
 
+  // Get a list of argflags for pending assignments.
+  SmallVectorImpl<ISD::ArgFlagsTy> &getPendingArgFlags() {
+    return PendingArgFlags;
+  }
+
   /// Compute the remaining unused register parameters that would be used for
   /// the given value type. This is useful when varargs are passed in the
   /// registers that normal prototyped parameters would be passed in, or for