avr-rust-bug-57.patch

Index: lib/Target/AVR/AVRISelLowering.cpp
===================================================================
--- lib/Target/AVR/AVRISelLowering.cpp  (revision 325378)
+++ lib/Target/AVR/AVRISelLowering.cpp  (working copy)
@@ -867,10 +867,11 @@
 
 /// For each argument in a function store the number of pieces it is composed
 /// of.
-static void parseFunctionArgs(const Function *F, const DataLayout *TD,
+static void parseFunctionArgs(const SmallVectorImpl<ISD::InputArg> &Ins,
                               SmallVectorImpl<unsigned> &Out) {
-  for (Argument const &Arg : F->args()) {
-    unsigned Bytes = (TD->getTypeSizeInBits(Arg.getType()) + 7) / 8;
+  for (const ISD::InputArg &Arg : Ins) {
+    if(Arg.PartOffset > 0) continue;
+    unsigned Bytes = ((Arg.ArgVT.getSizeInBits()) + 7) / 8;
     Out.push_back((Bytes + 1) / 2);
   }
 }
@@ -938,7 +939,7 @@
     parseExternFuncCallArgs(*Outs, Args);
   } else {
     assert(F != nullptr && "function should not be null");
-    parseFunctionArgs(F, TD, Args);
+    parseFunctionArgs(*Ins, Args);
   }
 
   unsigned RegsLeft = array_lengthof(RegList8), ValNo = 0;