diff --git a/llvm/lib/IR/BasicBlock.cpp b/llvm/lib/IR/BasicBlock.cpp
index d14abafdef2eb..ed1956e0f7e9a 100644
--- a/llvm/lib/IR/BasicBlock.cpp
+++ b/llvm/lib/IR/BasicBlock.cpp
@@ -12,6 +12,7 @@
 
 #include "llvm/IR/BasicBlock.h"
 #include "SymbolTableListTraitsImpl.h"
+#include "llvm/ADT/Statistic.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/IR/CFG.h"
 #include "llvm/IR/Constants.h"
@@ -23,6 +24,9 @@
 
 using namespace llvm;
 
+#define DEBUG_TYPE "ir"
+STATISTIC(NumInstrRenumberings, "Number of renumberings across all blocks");
+
 ValueSymbolTable *BasicBlock::getValueSymbolTable() {
   if (Function *F = getParent())
     return F->getValueSymbolTable();
@@ -505,6 +509,8 @@ void BasicBlock::renumberInstructions() {
   BasicBlockBits Bits = getBasicBlockBits();
   Bits.InstrOrderValid = true;
   setBasicBlockBits(Bits);
+
+  NumInstrRenumberings++;
 }
 
 #ifndef NDEBUG