+2009-06-18 Uros Bizjak <ubizjak@gmail.com>
+
+ * convert.c (convert_to_integer): Convert (int)logb() into ilogb().
+
2009-06-17 Olivier Hainque <hainque@adacore.com>
* collect2.c (main): Use CONST_CAST2 to perform char ** to
}
}
+ /* Convert (int)logb(d) -> ilogb(d). */
+ if (optimize
+ && flag_unsafe_math_optimizations
+ && !flag_trapping_math && !flag_errno_math && flag_finite_math_only
+ && integer_type_node
+ && (outprec > TYPE_PRECISION (integer_type_node)
+ || (outprec == TYPE_PRECISION (integer_type_node)
+ && !TYPE_UNSIGNED (type))))
+ {
+ tree s_expr = strip_float_extensions (expr);
+ tree s_intype = TREE_TYPE (s_expr);
+ const enum built_in_function fcode = builtin_mathfn_code (s_expr);
+ tree fn = 0;
+
+ switch (fcode)
+ {
+ CASE_FLT_FN (BUILT_IN_LOGB):
+ fn = mathfn_built_in (s_intype, BUILT_IN_ILOGB);
+ break;
+
+ default:
+ break;
+ }
+
+ if (fn)
+ {
+ tree newexpr = build_call_expr (fn, 1, CALL_EXPR_ARG (s_expr, 0));
+ return convert_to_integer (type, newexpr);
+ }
+ }
+
switch (TREE_CODE (intype))
{
case POINTER_TYPE:
+2009-06-18 Uros Bizjak <ubizjak@gmail.com>
+
+ * gcc.dg/builtins-65.c: New test.
+
2009-06-18 Janus Weil <janus@gcc.gnu.org>
PR fortran/40451
--- /dev/null
+/* { dg-do link } */
+/* { dg-options "-O2 -ffast-math" } */
+
+extern int ilogbf (float);
+extern float logbf (float);
+extern int ilogb (double);
+extern double logb (double);
+extern int ilogbl (long double);
+extern long double logbl (long double);
+
+extern void link_error(void);
+
+void testf(float x)
+{
+ if ((int) logbf (x) != ilogbf (x))
+ link_error ();
+}
+
+void test(double x)
+{
+ if ((int) logb (x) != ilogb (x))
+ link_error ();
+}
+
+void testl(long double x)
+{
+ if ((int) logbl (x) != ilogbl (x))
+ link_error ();
+}
+
+int main()
+{
+ testf (2.0f);
+ test (2.0);
+ testl (2.0l);
+
+ return 0;
+}
+