Reverting 132105: it broke some LLVM-GCC DejaGNU tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132108 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CallingConvLower.cpp b/lib/CodeGen/CallingConvLower.cpp
index d9cadf0..bfb6ba1 100644
--- a/lib/CodeGen/CallingConvLower.cpp
+++ b/lib/CodeGen/CallingConvLower.cpp
@@ -48,13 +48,8 @@
   if (MinAlign > (int)Align)
     Align = MinAlign;
   TM.getTargetLowering()->HandleByVal(const_cast<CCState*>(this), Size);
-  if (Size) {
-    unsigned Offset = AllocateStack(Size, Align);
-    addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo));
-  } else {
-    addLoc(CCValAssign::getReg(ValNo, ValVT, getFirstByValReg(), LocVT,
-                               LocInfo));
-  }
+  unsigned Offset = AllocateStack(Size, Align);
+  addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo));
 }
 
 /// MarkAllocated - Mark a register and all of its aliases as allocated.