builtins.c (define_builtin_type, [...]): Delete.

* builtins.c (define_builtin_type, builtin_types): Delete.
	(define_builtin): Rewritten to take just the built-in code,
	the function's name, type and fallback library function name.
	All built-ins used by Java are implicit and BUILT_IN_NORMAL.
	(initialize_builtins): Overhaul to define the GCC builtins
	used by gcj manually, providing the Java run-time's
	implementations as the fallback library function.

	* libjava.lang/MathBuiltin.java: New test case.
	* libjava.lang/MathBuiltin.out: New file.

From-SVN: r67632

libjava/testsuite/libjava.lang/MathBuiltin.java

@@ -0,0 +1,70 @@
+class MathBuiltin
+{
+  static double abs(double x)
+  {
+    return Math.abs(x);
+  }
+
+  static double atan(double x)
+  {
+    return Math.atan(x);
+  }
+
+  static double atan2(double x, double y)
+  {
+    return Math.atan2(x,y);
+  }
+
+  static double cos(double x)
+  {
+    return Math.cos(x);
+  }
+
+  static double exp(double x)
+  {
+    return Math.exp(x);
+  }
+
+  static double log(double x)
+  {
+    return Math.log(x);
+  }
+
+  static double max(double x, double y)
+  {
+    return Math.max(x,y);
+  }
+
+  static double min(double x, double y)
+  {
+    return Math.min(x,y);
+  }
+
+  static double pow(double x, double y)
+  {
+    return Math.pow(x,y);
+  }
+
+  static double sin(double x)
+  {
+    return Math.sin(x);
+  }
+
+  static double sqrt(double x)
+  {
+    return Math.sqrt(x);
+  }
+
+  static double tan(double x)
+  {
+    return Math.tan(x);
+  }
+
+  public static void main(String argv[])
+  {
+    double sum = abs (1.0) + atan (1.0) + atan2 (1.0, 1.0) + cos (1.0)
+                 + exp (1.0) + log(1.0) + max(1.0, 1.0) + min (1.0, 1.0)
+		 + pow (1.0, 1.0) + sin (1.0) + sqrt(1.0) + tan(1.0);
+  }
+}
+