1 files changed, 7 insertions, 1 deletions
diff --git a/llvm/lib/Target/ARM/ARMCallLowering.cpp b/llvm/lib/Target/ARM/ARMCallLowering.cpp
index 1c2df39d05a..7338ac8bcb5 100644
--- a/llvm/lib/Target/ARM/ARMCallLowering.cpp
+++ b/llvm/lib/Target/ARM/ARMCallLowering.cpp
@@ -434,9 +434,12 @@ bool ARMCallLowering::lowerFormalArguments(MachineIRBuilder &MIRBuilder,
   auto &MBB = MIRBuilder.getMBB();
   auto DL = MF.getDataLayout();
 
-  for (auto &Arg : F.args())
+  for (auto &Arg : F.args()) {
     if (!isSupportedType(DL, TLI, Arg.getType()))
       return false;
+    if (Arg.hasByValOrInAllocaAttr())
+      return false;
+  }
 
   CCAssignFn *AssignFn =
       TLI.CCAssignFnForCall(F.getCallingConv(), F.isVarArg());
@@ -529,6 +532,9 @@ bool ARMCallLowering::lowerCall(MachineIRBuilder &MIRBuilder,
     if (!Arg.IsFixed)
       return false;
 
+    if (Arg.Flags.isByVal())
+      return false;
+
     SmallVector<unsigned, 8> Regs;
     splitToValueTypes(Arg, ArgInfos, MF, [&](unsigned Reg, uint64_t Offset) {
       Regs.push_back(Reg);