Add a bool flag to StackObjects telling whether they reference spill
slots.  The AsmPrinter will use this information to determine whether to
print a spill/reload comment.

Remove default argument values.  It's too easy to pass a wrong argument
value when multiple arguments have default values.  Make everything
explicit to trap bugs early.

Update all targets to adhere to the new interfaces..


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87022 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 4e220c2..d9c273d 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -1379,7 +1379,7 @@
   unsigned StackAlign =
   std::max((unsigned)TLI.getTargetData()->getPrefTypeAlignment(Ty), minAlign);
 
-  int FrameIdx = FrameInfo->CreateStackObject(ByteSize, StackAlign);
+  int FrameIdx = FrameInfo->CreateStackObject(ByteSize, StackAlign, false);
   return getFrameIndex(FrameIdx, TLI.getPointerTy());
 }
 
@@ -1395,7 +1395,7 @@
                             TD->getPrefTypeAlignment(Ty2));
 
   MachineFrameInfo *FrameInfo = getMachineFunction().getFrameInfo();
-  int FrameIdx = FrameInfo->CreateStackObject(Bytes, Align);
+  int FrameIdx = FrameInfo->CreateStackObject(Bytes, Align, false);
   return getFrameIndex(FrameIdx, TLI.getPointerTy());
 }