Remove the SavePoint infrastructure from fast isel, replace
with just an insert point from the MachineBasicBlock and let
the location be updated as we access it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165049 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp
index 54704d8..83f2f6a 100644
--- a/lib/Target/X86/X86FastISel.cpp
+++ b/lib/Target/X86/X86FastISel.cpp
@@ -545,7 +545,7 @@
         StubAM.GVOpFlags = GVFlags;
 
         // Prepare for inserting code in the local-value area.
-        SavePoint SaveInsertPt = enterLocalValueArea();
+	MachineBasicBlock::iterator SaveIter = enterLocalValueArea();
 
         if (TLI.getPointerTy() == MVT::i64) {
           Opc = X86::MOV64rm;
@@ -564,7 +564,7 @@
         addFullAddress(LoadMI, StubAM);
 
         // Ok, back to normal mode.
-        leaveLocalValueArea(SaveInsertPt);
+        leaveLocalValueArea(SaveIter);
 
         // Prevent loading GV stub multiple times in same MBB.
         LocalValueMap[V] = LoadReg;