diff --git a/bolt/lib/Passes/BinaryPasses.cpp b/bolt/lib/Passes/BinaryPasses.cpp
--- a/bolt/lib/Passes/BinaryPasses.cpp
+++ b/bolt/lib/Passes/BinaryPasses.cpp
@@ -1211,8 +1211,7 @@
       continue;
     }
 
-    if (!UseColdSection || Function.hasValidIndex() ||
-        Function.hasValidProfile())
+    if (!UseColdSection || Function.hasValidIndex())
       Function.setCodeSectionName(BC.getMainCodeSectionName());
     else
       Function.setCodeSectionName(BC.getColdCodeSectionName());
diff --git a/bolt/lib/Passes/ReorderFunctions.cpp b/bolt/lib/Passes/ReorderFunctions.cpp
--- a/bolt/lib/Passes/ReorderFunctions.cpp
+++ b/bolt/lib/Passes/ReorderFunctions.cpp
@@ -128,6 +128,13 @@
     }
   }
 
+  // Assign index for split functions
+  for (auto &it : BFs) {
+    BinaryFunction &BF = it.second;
+    if (!BF.hasValidIndex() && BF.hasValidProfile())
+      BF.setIndex(Index++);
+  }
+
   if (opts::ReorderFunctions == RT_NONE)
     return;