Revert 84315 for now. Re-thinking the patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84321 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 3c15b70..fadc818 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -1373,7 +1373,7 @@
   if (Flags.isByVal())
     return FIN;
   return DAG.getLoad(ValVT, dl, Chain, FIN,
-                     PseudoSourceValue::getStackObject(FI), 0);
+                     PseudoSourceValue::getFixedStack(FI), 0);
 }
 
 SDValue
@@ -1562,7 +1562,7 @@
         SDValue Val = DAG.getCopyFromReg(Chain, dl, VReg, MVT::i64);
         SDValue Store =
           DAG.getStore(Val.getValue(1), dl, Val, FIN,
-                       PseudoSourceValue::getStackObject(RegSaveFrameIndex),
+                       PseudoSourceValue::getFixedStack(RegSaveFrameIndex),
                        Offset);
         MemOps.push_back(Store);
         Offset += 8;
@@ -1673,7 +1673,7 @@
   EVT VT = Is64Bit ? MVT::i64 : MVT::i32;
   SDValue NewRetAddrFrIdx = DAG.getFrameIndex(NewReturnAddrFI, VT);
   Chain = DAG.getStore(Chain, dl, RetAddrFrIdx, NewRetAddrFrIdx,
-                       PseudoSourceValue::getStackObject(NewReturnAddrFI), 0);
+                       PseudoSourceValue::getFixedStack(NewReturnAddrFI), 0);
   return Chain;
 }
 
@@ -1767,7 +1767,7 @@
       SDValue SpillSlot = DAG.CreateStackTemporary(VA.getValVT());
       int FI = cast<FrameIndexSDNode>(SpillSlot)->getIndex();
       Chain = DAG.getStore(Chain, dl, Arg, SpillSlot,
-                           PseudoSourceValue::getStackObject(FI), 0);
+                           PseudoSourceValue::getFixedStack(FI), 0);
       Arg = SpillSlot;
       break;
     }
@@ -1900,7 +1900,7 @@
           // Store relative to framepointer.
           MemOpChains2.push_back(
             DAG.getStore(ArgChain, dl, Arg, FIN,
-                         PseudoSourceValue::getStackObject(FI), 0));
+                         PseudoSourceValue::getFixedStack(FI), 0));
         }
       }
     }
@@ -4868,7 +4868,7 @@
   SDValue StackSlot = DAG.getFrameIndex(SSFI, getPointerTy());
   SDValue Chain = DAG.getStore(DAG.getEntryNode(), dl, Op.getOperand(0),
                                StackSlot,
-                               PseudoSourceValue::getStackObject(SSFI), 0);
+                               PseudoSourceValue::getFixedStack(SSFI), 0);
   return BuildFILD(Op, SrcVT, Chain, StackSlot, DAG);
 }
 
@@ -4909,7 +4909,7 @@
     Ops.push_back(InFlag);
     Chain = DAG.getNode(X86ISD::FST, dl, Tys, &Ops[0], Ops.size());
     Result = DAG.getLoad(Op.getValueType(), dl, Chain, StackSlot,
-                         PseudoSourceValue::getStackObject(SSFI), 0);
+                         PseudoSourceValue::getFixedStack(SSFI), 0);
   }
 
   return Result;
@@ -5124,7 +5124,7 @@
   if (isScalarFPTypeInSSEReg(Op.getOperand(0).getValueType())) {
     assert(DstTy == MVT::i64 && "Invalid FP_TO_SINT to lower!");
     Chain = DAG.getStore(Chain, dl, Value, StackSlot,
-                         PseudoSourceValue::getStackObject(SSFI), 0);
+                         PseudoSourceValue::getFixedStack(SSFI), 0);
     SDVTList Tys = DAG.getVTList(Op.getOperand(0).getValueType(), MVT::Other);
     SDValue Ops[] = {
       Chain, StackSlot, DAG.getValueType(Op.getOperand(0).getValueType())
@@ -7754,7 +7754,7 @@
     int64_t Offset = (i - 3) * 16 + VarArgsFPOffset;
     MachineMemOperand *MMO =
       F->getMachineMemOperand(
-        PseudoSourceValue::getStackObject(RegSaveFrameIndex),
+        PseudoSourceValue::getFixedStack(RegSaveFrameIndex),
         MachineMemOperand::MOStore, Offset,
         /*Size=*/16, /*Align=*/16);
     BuildMI(XMMSaveMBB, DL, TII->get(X86::MOVAPSmr))