InstrProf: Add missing header from r229478

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229481 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/unittests/ProfileData/InstrProfTest.cpp b/unittests/ProfileData/InstrProfTest.cpp
index 2a6713176b7e169283e7c66d84502a23fe27b7b6..1a25a1fd90d04690dbd087de4967c787bc186ba9 100644 (file)
--- a/unittests/ProfileData/InstrProfTest.cpp
+++ b/unittests/ProfileData/InstrProfTest.cpp
@@ -11,6 +11,8 @@
 #include "llvm/ProfileData/InstrProfWriter.h"
 #include "gtest/gtest.h"
 
+#include <cstdarg>
+
 using namespace llvm;
 
 namespace {