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

[Richard Guenther]

This makes said functions available from the fortran frontend for
use by the middle-end conditional on TARGET_C99_FUNCTIONS and 
TARGET_GNU_SINCOS.

Bootstrap and regtest in progress, ok if it passes?

Thanks,
Richard.

2007-01-17  Richard Guenther  <rguenther@suse.de>

	* f95-lang.c (gfc_init_builtin_functions): Provide cbrt and
	cexpi builtins if we have TARGET_C99_FUNCTIONS.  Provide
	sincos builtins if the target has sincos.

Index: fortran/f95-lang.c
===================================================================
*** fortran/f95-lang.c	(revision 120875)
--- fortran/f95-lang.c	(working copy)
*************** gfc_init_builtin_functions (void)
*** 852,861 ****
    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];
  
--- 852,864 ----
    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)
*** 869,881 ****
--- 872,915 ----
    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)
*** 923,928 ****
--- 957,989 ----
    gfc_define_builtin ("__builtin_powf", mfunc_float[1], 
  		      BUILT_IN_POWF, "powf", true);
  
+   if (TARGET_C99_FUNCTIONS)
+     {
+       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);
+       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);
+     }
+ 
+   if (TARGET_GNU_SINCOS)
+     {
+       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);