llvm/IR/DiagnosticHandler.h: Add include guard, or -fmodules would be confused.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313456 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/IR/DiagnosticHandler.h b/include/llvm/IR/DiagnosticHandler.h
index 031298a1b74677d66b66c873b171502877ffb00c..16b0075698937a69146b5d89574d38645265d814 100644 (file)
--- a/include/llvm/IR/DiagnosticHandler.h
+++ b/include/llvm/IR/DiagnosticHandler.h
@@ -10,6 +10,9 @@
 // custom diagnostic reporting.
 //===----------------------------------------------------------------------===//
 
+#ifndef LLVM_IR_DIAGNOSTICHANDLER_H
+#define LLVM_IR_DIAGNOSTICHANDLER_H
+
 #include "llvm/ADT/StringRef.h"
 
 namespace llvm {
@@ -65,3 +68,5 @@ struct DiagnosticHandler {
   }
 };
 }
+
+#endif // LLVM_IR_DIAGNOSTICHANDLER_H