Add missing #include found by modules build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279298 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/CodeGen/PBQP/Graph.h b/include/llvm/CodeGen/PBQP/Graph.h
index 4a18ac5..b4e7fba 100644 (file)
--- a/include/llvm/CodeGen/PBQP/Graph.h
+++ b/include/llvm/CodeGen/PBQP/Graph.h
@@ -15,6 +15,7 @@
 #ifndef LLVM_CODEGEN_PBQP_GRAPH_H
 #define LLVM_CODEGEN_PBQP_GRAPH_H
 
+#include "llvm/ADT/STLExtras.h"
 #include "llvm/Support/Debug.h"
 #include <algorithm>
 #include <cassert>