1 files changed, 65 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/builtins-21.c b/gcc/testsuite/gcc.dg/builtins-21.c
new file mode 100644
index 000000000..60b127fe6
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/builtins-21.c
@@ -0,0 +1,65 @@
+/* Copyright (C) 2003  Free Software Foundation.
+
+   Verify that built-in math function constant folding doesn't
+   cause any problems for the compiler.
+
+   Written by Roger Sayle, 7th June 2003.  */
+
+/* { dg-do compile } */
+/* { dg-options "-O2 -ffast-math" } */
+
+extern double fabs (double);
+extern float fabsf (float);
+extern long double fabsl (long double);
+extern double sqrt (double);
+extern float sqrtf (float);
+extern long double sqrtl (long double);
+extern double exp (double);
+extern float expf (float);
+extern long double expl (long double);
+
+double test1(double x)
+{
+  return fabs(x*x);
+}
+
+double test2(double x)
+{
+  return fabs(sqrt(x)+2.0);
+}
+
+double test3(double x)
+{
+  return fabs(3.0*exp(x));
+}
+
+float test1f(float x)
+{
+  return fabsf(x*x);
+}
+
+float test2f(float x)
+{
+  return fabsf(sqrtf(x)+2.0f);
+}
+
+float test3f(float x)
+{
+  return fabsf(3.0f*expf(x));
+}
+
+long double test1l(long double x)
+{
+  return fabsl(x*x);
+}
+
+long double test2l(long double x)
+{
+  return fabsl(sqrtl(x)+2.0l);
+}
+
+long double test3l(long double x)
+{
+  return fabsl(3.0l*expl(x));
+}
+