[PATCH][fortran] Make cbrt, cexpi and sincos builtins available

[Tobias Burnus]

Let's    *ping*   for Richard.

with the sincos infrastructure in the middle end (I think all patches
are now in the trunk), this speeds up the Polyhedron fatigue test a lot:
~28.3s => ~18.3s  (35% faster).

This can be seen at the page
http://www.suse.de/~gcctest/c++bench/polyhedron/polyhedron-summary.txt-fatigue-15.png
of http://www.suse.de/~gcctest/c++bench/polyhedron/
(The patch was applied for one day.)

Tobias

Richard Guenther schrieb:
> As $subject says.  The cbrt builtins can be used to expand x**1./3. to
> cbrt, the other two are on-top of the sincos patches.
>
> Bootstrap / regtest running.
>
> Ok if the sincos patch(es) go in?  How can we tell that the target
> supports sincos?  (I guess we would need a configure check for that?)
>
> Thanks,
> Richard.
>
> --
> Richard Guenther <rguenther@suse.de>
> Novell / SUSE Labs
>
> 2006-12-07  Richard Guenther  <rguenther@suse.de>
>
> 	* f95-lang.c (gfc_init_builtin_functions): Make cbrt, cexpi
> 	and sincos builtins available.
>
> Index: fortran/f95-lang.c
> ===================================================================
> *** fortran/f95-lang.c	(revision 119622)
> --- fortran/f95-lang.c	(working copy)
> *************** gfc_init_builtin_functions (void)
> *** 842,851 ****
>     tree mfunc_cfloat[3];
>     tree mfunc_cdouble[3];
>     tree mfunc_clongdouble[3];
> !   tree func_cfloat_float;
> !   tree func_cdouble_double;
> !   tree func_clongdouble_longdouble;
> !   tree ftype;
>     tree tmp;
>     tree builtin_types[(int) BT_LAST + 1];
>   
> --- 842,854 ----
>     tree mfunc_cfloat[3];
>     tree mfunc_cdouble[3];
>     tree mfunc_clongdouble[3];
> !   tree func_cfloat_float, func_float_cfloat;
> !   tree func_cdouble_double, func_double_cdouble;
> !   tree func_clongdouble_longdouble, func_longdouble_clongdouble;
> !   tree func_float_floatp_floatp;
> !   tree func_double_doublep_doublep;
> !   tree func_longdouble_longdoublep_longdoublep;
> !   tree ftype, ptype;
>     tree tmp;
>     tree builtin_types[(int) BT_LAST + 1];
>   
> *************** gfc_init_builtin_functions (void)
> *** 859,871 ****
> --- 862,905 ----
>     tmp = tree_cons (NULL_TREE, complex_float_type_node, void_list_node);
>     func_cfloat_float = build_function_type (float_type_node, tmp);
>   
> +   tmp = tree_cons (NULL_TREE, float_type_node, void_list_node);
> +   func_float_cfloat = build_function_type (complex_float_type_node, tmp);
> + 
>     tmp = tree_cons (NULL_TREE, complex_double_type_node, void_list_node);
>     func_cdouble_double = build_function_type (double_type_node, tmp);
>   
> +   tmp = tree_cons (NULL_TREE, double_type_node, void_list_node);
> +   func_double_cdouble = build_function_type (complex_double_type_node, tmp);
> + 
>     tmp = tree_cons (NULL_TREE, complex_long_double_type_node, void_list_node);
>     func_clongdouble_longdouble =
>       build_function_type (long_double_type_node, tmp);
>   
> +   tmp = tree_cons (NULL_TREE, long_double_type_node, void_list_node);
> +   func_longdouble_clongdouble =
> +     build_function_type (complex_long_double_type_node, tmp);
> + 
> +   ptype = build_pointer_type (float_type_node);
> +   tmp = tree_cons (NULL_TREE, float_type_node,
> + 		   tree_cons (NULL_TREE, ptype,
> + 		   	      build_tree_list (NULL_TREE, ptype)));
> +   func_float_floatp_floatp =
> +     build_function_type (void_type_node, tmp);
> + 
> +   ptype = build_pointer_type (double_type_node);
> +   tmp = tree_cons (NULL_TREE, double_type_node,
> + 		   tree_cons (NULL_TREE, ptype,
> + 		   	      build_tree_list (NULL_TREE, ptype)));
> +   func_double_doublep_doublep =
> +     build_function_type (void_type_node, tmp);
> + 
> +   ptype = build_pointer_type (long_double_type_node);
> +   tmp = tree_cons (NULL_TREE, long_double_type_node,
> + 		   tree_cons (NULL_TREE, ptype,
> + 		   	      build_tree_list (NULL_TREE, ptype)));
> +   func_longdouble_longdoublep_longdoublep =
> +     build_function_type (void_type_node, tmp);
> + 
>   #include "mathbuiltins.def"
>   
>     /* We define these separately as the fortran versions have different
> *************** gfc_init_builtin_functions (void)
> *** 913,918 ****
> --- 947,977 ----
>     gfc_define_builtin ("__builtin_powf", mfunc_float[1], 
>   		      BUILT_IN_POWF, "powf", true);
>   
> +   if (TARGET_C99_FUNCTIONS)
> +     {
> +       /* This is to allow lowering of **n/3 to cbrt.  */
> +       gfc_define_builtin ("__builtin_cbrtl", mfunc_longdouble[0],
> + 			  BUILT_IN_CBRTL, "cbrtl", true);
> +       gfc_define_builtin ("__builtin_cbrt", mfunc_double[0],
> + 			  BUILT_IN_CBRT, "cbrt", true);
> +       gfc_define_builtin ("__builtin_cbrtf", mfunc_float[0],
> + 			  BUILT_IN_CBRTF, "cbrtf", true);
> +     }
> + 
> +   /* The following are used to handle sincos.  */
> +   gfc_define_builtin ("__builtin_cexpil", func_longdouble_clongdouble, 
> + 		      BUILT_IN_CEXPIL, "cexpil", true);
> +   gfc_define_builtin ("__builtin_cexpi", func_double_cdouble,
> + 		      BUILT_IN_CEXPI, "cexpi", true);
> +   gfc_define_builtin ("__builtin_cexpif", func_float_cfloat,
> + 		      BUILT_IN_CEXPIF, "cexpif", true);
> +   gfc_define_builtin ("__builtin_sincosl", func_longdouble_longdoublep_longdoublep,
> + 		      BUILT_IN_SINCOSL, "sincosl", false);
> +   gfc_define_builtin ("__builtin_sincos", func_double_doublep_doublep,
> + 		      BUILT_IN_SINCOS, "sincos", false);
> +   gfc_define_builtin ("__builtin_sincosf", func_float_floatp_floatp,
> + 		      BUILT_IN_SINCOSF, "sincosf", false);
> + 
>     /* Other builtin functions we use.  */
>   
>     tmp = tree_cons (NULL_TREE, long_integer_type_node, void_list_node);
>
>