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/CodeGen/SelectionDAG/SelectionDAGBuild.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
index f1bf737..adcc532 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
@@ -4197,7 +4197,7 @@
 
     // Store the stack protector onto the stack.
     SDValue Result = DAG.getStore(getRoot(), getCurDebugLoc(), Src, FIN,
-                                  PseudoSourceValue::getStackObject(FI),
+                                  PseudoSourceValue::getFixedStack(FI),
                                   0, true);
     setValue(&I, Result);
     DAG.setRoot(Result);