X86: Fix another dereferenced end() iterator after r278532

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278577 91177308-0d34-0410-b5e6-96231b3b80d8
liuchyi · Aug 12, 2016 · be1a4e1 · be1a4e1
1 parent e96662e
commit be1a4e1
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/Target/X86/X86FrameLowering.cpp b/lib/Target/X86/X86FrameLowering.cpp
@@ -1959,7 +1959,7 @@ bool X86FrameLowering::restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
   if (CSI.empty())
     return false;
 
-  if (isFuncletReturnInstr(*MI) && STI.isOSWindows()) {
+  if (MI != MBB.end() && isFuncletReturnInstr(*MI) && STI.isOSWindows()) {
     // Don't restore CSRs in 32-bit EH funclets. Matches
     // spillCalleeSavedRegisters.
     if (STI.is32Bit())