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-rw-r--r--lib/AsmParser/LLLexer.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/AsmParser/LLLexer.cpp b/lib/AsmParser/LLLexer.cpp
index 99989ac971..eb5b0f9c1d 100644
--- a/lib/AsmParser/LLLexer.cpp
+++ b/lib/AsmParser/LLLexer.cpp
@@ -22,6 +22,7 @@
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/raw_ostream.h"
+#include <cctype>
#include <cstdio>
#include <cstdlib>
#include <cstring>