[Layering] Move DebugInfo.h into the IR library where its implementation

[oota-llvm.git] / lib / CodeGen / SlotIndexes.cpp

diff --git a/lib/CodeGen/SlotIndexes.cpp b/lib/CodeGen/SlotIndexes.cpp
index 20049a89d15d8e8d9493198ac60bd81512f11ce4..a6c62617efa549639c5d8957c29268a2ca12fa1e 100644 (file)
--- a/lib/CodeGen/SlotIndexes.cpp
+++ b/lib/CodeGen/SlotIndexes.cpp
@@ -129,7 +129,7 @@ void SlotIndexes::renumberIndexes(IndexList::iterator curItr) {
   const unsigned Space = SlotIndex::InstrDist/2;
   assert((Space & 3) == 0 && "InstrDist must be a multiple of 2*NUM");
 
-  IndexList::iterator startItr = prior(curItr);
+  IndexList::iterator startItr = std::prev(curItr);
   unsigned index = startItr->getIndex();
   do {
     curItr->setIndex(index += Space);