1 files changed, 80 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/builtins-6.c b/gcc/testsuite/gcc.dg/builtins-6.c
new file mode 100644
index 000000000..2ebb0b2d8
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/builtins-6.c
@@ -0,0 +1,80 @@
+/* Copyright (C) 2003  Free Software Foundation.
+
+   Verify that constant folding comparisons against built-in math functions
+   don't cause any problems for the compiler, and produce expected results.
+
+   Written by Roger Sayle, 15th March 2003.  */
+
+/* { dg-do run } */
+/* { dg-options "-O2 -ffast-math" } */
+
+#include <float.h>
+
+extern void abort (void);
+extern double sqrt (double);
+
+int test1(double x)
+{
+  return sqrt(x) < -9.0;
+}
+
+int test2(double x)
+{
+  return sqrt(x) > -9.0;
+}
+
+int test3(double x)
+{
+  return sqrt(x) < 9.0;
+}
+
+int test4(double x)
+{
+  return sqrt(x) > 9.0;
+}
+
+int test5(double x)
+{
+  return sqrt(x) < DBL_MAX;
+}
+
+int test6(double x)
+{
+  return sqrt(x) > DBL_MAX;
+}
+
+int main()
+{
+  double x;
+
+  x = 80.0;
+  if (test1 (x))
+    abort ();
+  if (! test2 (x))
+    abort ();
+  if (! test3 (x))
+    abort ();
+  if (test4 (x))
+    abort ();
+  if (! test5 (x))
+    abort ();
+  if (test6 (x))
+    abort ();
+
+  x = 100.0;
+  if (test1 (x))
+    abort ();
+  if (! test2 (x))
+    abort ();
+  if (test3 (x))
+    abort ();
+  if (! test4 (x))
+    abort ();
+  if (! test5 (x))
+    abort ();
+  if (test6 (x))
+    abort ();
+
+  return 0;
+}
+