properly encapsulate the parent field of MBB and MI with get/set accessors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45469 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineFunction.cpp b/lib/CodeGen/MachineFunction.cpp
index 595159b..3f2c119 100644
--- a/lib/CodeGen/MachineFunction.cpp
+++ b/lib/CodeGen/MachineFunction.cpp
@@ -111,12 +111,14 @@
}
void ilist_traits<MachineBasicBlock>::transferNodesFromList(
- iplist<MachineBasicBlock, ilist_traits<MachineBasicBlock> >& toList,
- ilist_iterator<MachineBasicBlock> first,
- ilist_iterator<MachineBasicBlock> last) {
- if (Parent != toList.Parent)
- for (; first != last; ++first)
- first->Parent = toList.Parent;
+ iplist<MachineBasicBlock, ilist_traits<MachineBasicBlock> >& toList,
+ ilist_iterator<MachineBasicBlock> first,
+ ilist_iterator<MachineBasicBlock> last) {
+ // If splicing withing the same function, no change.
+ if (Parent == toList.Parent) return;
+
+ for (; first != last; ++first)
+ first->setParent(toList.Parent);
}
MachineFunction::MachineFunction(const Function *F,