1 files changed, 36 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/pr39228.c b/gcc/testsuite/gcc.c-torture/execute/pr39228.c
new file mode 100644
index 000000000..06d8efd1a
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr39228.c
@@ -0,0 +1,36 @@
+extern void abort (void);
+
+static int __attribute__((always_inline)) testf (float b)
+{
+  float c = 1.01f * b;
+
+  return __builtin_isinff (c);
+}
+
+static int __attribute__((always_inline)) test (double b)
+{
+  double c = 1.01 * b;
+
+  return __builtin_isinf (c);
+}
+
+static int __attribute__((always_inline)) testl (long double b)
+{
+  long double c = 1.01L * b;
+
+  return __builtin_isinfl (c);
+}
+
+int main()
+{
+  if (testf (__FLT_MAX__) < 1)
+    abort ();
+
+  if (test (__DBL_MAX__) < 1)
+    abort ();
+
+  if (testl (__LDBL_MAX__) < 1)
+    abort ();
+
+  return 0;
+}