vendor/llvm/llvm-trunk-r306325

1 files changed, 6 insertions, 0 deletions

diff --git a/unittests/Support/CommandLineTest.cpp b/unittests/Support/CommandLineTest.cpp
index f9dc3930df8c..660df11446ac 100644
--- a/unittests/Support/CommandLineTest.cpp
+++ b/unittests/Support/CommandLineTest.cpp
@@ -13,6 +13,7 @@
 #include "llvm/Config/config.h"
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/Path.h"
+#include "llvm/Support/Program.h"
 #include "llvm/Support/StringSaver.h"
 #include "gtest/gtest.h"
 #include <fstream>
@@ -546,6 +547,11 @@ TEST(CommandLineTest, GetRegisteredSubcommands) {
   }
 }
 
+TEST(CommandLineTest, ArgumentLimit) {
+  std::string args(32 * 4096, 'a');
+  EXPECT_FALSE(llvm::sys::commandLineFitsWithinSystemLimits("cl", args.data()));
+}
+
 TEST(CommandLineTest, ResponseFiles) {
   llvm::SmallString<128> TestDir;
   std::error_code EC =