1 files changed, 40 insertions, 0 deletions
diff --git a/clang-tools-extra/test/clang-tidy/checkers/google/runtime-float.cpp b/clang-tools-extra/test/clang-tidy/checkers/google/runtime-float.cpp
new file mode 100644
index 000000000000..5c9cc11dbef2
--- /dev/null
+++ b/clang-tools-extra/test/clang-tidy/checkers/google/runtime-float.cpp
@@ -0,0 +1,40 @@
+// RUN: %check_clang_tidy %s google-runtime-float %t
+
+long double foo;
+// CHECK-MESSAGES: :[[@LINE-1]]:1: warning: 'long double' type is not portable and should not be used [google-runtime-float]
+
+typedef long double MyLongDouble;
+// CHECK-MESSAGES: :[[@LINE-1]]:9: warning: 'long double' type is not portable and should not be used [google-runtime-float]
+
+typedef long double MyOtherLongDouble; // NOLINT
+
+template <typename T>
+void tmpl() { T i; }
+
+long volatile double v = 10;
+// CHECK-MESSAGES: :[[@LINE-1]]:1: warning: 'volatile long double' type is not portable and should not be used [google-runtime-float]
+
+long double h(long const double aaa, long double bbb = 0.5L) {
+  // CHECK-MESSAGES: :[[@LINE-1]]:1: warning: 'long double' type is not portable and should not be used [google-runtime-float]
+  // CHECK-MESSAGES: :[[@LINE-2]]:15: warning: 'const long double' type is not portable and should not be used [google-runtime-float]
+  // CHECK-MESSAGES: :[[@LINE-3]]:38: warning: 'long double' type is not portable and should not be used [google-runtime-float]
+  // CHECK-MESSAGES: :[[@LINE-4]]:56: warning: 'long double' type from literal suffix 'L' is not portable and should not be used [google-runtime-float]
+  double x = 0.1;
+  double y = 0.2L;
+  // CHECK-MESSAGES: :[[@LINE-1]]:14: warning: 'long double' type from literal suffix 'L' is not portable and should not be used [google-runtime-float]
+#define ldtype long double
+  ldtype z;
+  tmpl<long double>();
+  // CHECK-MESSAGES: :[[@LINE-1]]:8: warning: 'long double' type is not portable and should not be used [google-runtime-float]
+  return 0;
+}
+
+struct S{};
+constexpr S operator"" _baz(unsigned long long) {
+  long double j;
+  // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 'long double' type is not portable and should not be used [google-runtime-float]
+  MyOtherLongDouble x;
+  long int a = 1L;
+  return S{};
+}
+