diff --git a/llvm/lib/CodeGen/GlobalISel/CallLowering.cpp b/llvm/lib/CodeGen/GlobalISel/CallLowering.cpp
index 0772021..d257bbc 100644
--- a/llvm/lib/CodeGen/GlobalISel/CallLowering.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/CallLowering.cpp
@@ -29,7 +29,7 @@
 
 bool CallLowering::lowerCall(MachineIRBuilder &MIRBuilder, ImmutableCallSite CS,
                              ArrayRef<Register> ResRegs,
-                             ArrayRef<Register> ArgRegs,
+                             ArrayRef<ArrayRef<Register>> ArgRegs,
                              Register SwiftErrorVReg,
                              std::function<unsigned()> GetCalleeReg) const {
   auto &DL = CS.getParent()->getParent()->getParent()->getDataLayout();