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

lib/CodeGen/PrologEpilogInserter.cpp

@@ -264,7 +264,8 @@ void PEI::calculateCalleeSavedRegisters(MachineFunction &Fn) {
       if ((unsigned)FrameIdx > MaxCSFrameIndex) MaxCSFrameIndex = FrameIdx;
     } else {
       // Spill it to the stack where we must.
-      FrameIdx = FFI->CreateFixedObject(RC->getSize(), FixedSlot->Offset);
+      FrameIdx = FFI->CreateFixedObject(RC->getSize(), FixedSlot->Offset,
+                                        true, false);
     }
 
     I->setFrameIdx(FrameIdx);