1 /* gfortran backend interface
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation,
4 Contributed by Paul Brook.
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
23 /* f95-lang.c-- GCC backend interface stuff */
25 /* declare required prototypes: */
31 #include "coretypes.h"
33 #include "tree-gimple.h"
35 #include "langhooks.h"
36 #include "langhooks-def.h"
44 #include "diagnostic.h"
45 #include "tree-dump.h"
50 #include "trans-types.h"
51 #include "trans-const.h"
53 /* Language-dependent contents of an identifier. */
55 struct lang_identifier
58 struct tree_identifier common;
61 /* The resulting tree type. */
64 GTY((desc ("TREE_CODE (&%h.generic) == IDENTIFIER_NODE"),
65 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)")))
67 union tree_node GTY((tag ("0"),
68 desc ("tree_node_structure (&%h)"))) generic;
69 struct lang_identifier GTY((tag ("1"))) identifier;
72 /* Save and restore the variables in this file and elsewhere
73 that keep track of the progress of compilation of the current function.
74 Used for nested functions. */
76 struct language_function
79 /* struct gfc_language_function base; */
80 struct binding_level *binding_level;
83 /* We don't have a lex/yacc lexer/parser, but toplev expects these to
85 void yyerror (const char *str);
88 static void gfc_init_decl_processing (void);
89 static void gfc_init_builtin_functions (void);
91 /* Each front end provides its own. */
92 static bool gfc_init (void);
93 static void gfc_finish (void);
94 static void gfc_print_identifier (FILE *, tree, int);
95 static bool gfc_mark_addressable (tree);
96 void do_function_end (void);
97 int global_bindings_p (void);
98 void insert_block (tree);
99 static void gfc_clear_binding_stack (void);
100 static void gfc_be_parse_file (int);
101 static void gfc_expand_function (tree);
103 #undef LANG_HOOKS_NAME
104 #undef LANG_HOOKS_INIT
105 #undef LANG_HOOKS_FINISH
106 #undef LANG_HOOKS_INIT_OPTIONS
107 #undef LANG_HOOKS_HANDLE_OPTION
108 #undef LANG_HOOKS_POST_OPTIONS
109 #undef LANG_HOOKS_PRINT_IDENTIFIER
110 #undef LANG_HOOKS_PARSE_FILE
111 #undef LANG_HOOKS_MARK_ADDRESSABLE
112 #undef LANG_HOOKS_TYPE_FOR_MODE
113 #undef LANG_HOOKS_TYPE_FOR_SIZE
114 #undef LANG_HOOKS_UNSIGNED_TYPE
115 #undef LANG_HOOKS_SIGNED_TYPE
116 #undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
117 #undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION
118 #undef LANG_HOOKS_CLEAR_BINDING_STACK
120 /* Define lang hooks. */
121 #define LANG_HOOKS_NAME "GNU F95"
122 #define LANG_HOOKS_INIT gfc_init
123 #define LANG_HOOKS_FINISH gfc_finish
124 #define LANG_HOOKS_INIT_OPTIONS gfc_init_options
125 #define LANG_HOOKS_HANDLE_OPTION gfc_handle_option
126 #define LANG_HOOKS_POST_OPTIONS gfc_post_options
127 #define LANG_HOOKS_PRINT_IDENTIFIER gfc_print_identifier
128 #define LANG_HOOKS_PARSE_FILE gfc_be_parse_file
129 #define LANG_HOOKS_MARK_ADDRESSABLE gfc_mark_addressable
130 #define LANG_HOOKS_TYPE_FOR_MODE gfc_type_for_mode
131 #define LANG_HOOKS_TYPE_FOR_SIZE gfc_type_for_size
132 #define LANG_HOOKS_UNSIGNED_TYPE gfc_unsigned_type
133 #define LANG_HOOKS_SIGNED_TYPE gfc_signed_type
134 #define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE gfc_signed_or_unsigned_type
135 #define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION gfc_expand_function
136 #define LANG_HOOKS_CLEAR_BINDING_STACK gfc_clear_binding_stack
138 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
140 /* A list (chain of TREE_LIST nodes) of all LABEL_DECLs in the function
141 that have names. Here so we can clear out their names' definitions
142 at the end of the function. */
144 /* Tree code classes. */
146 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
148 const enum tree_code_class tree_code_type[] = {
153 /* Table indexed by tree code giving number of expression
154 operands beyond the fixed part of the node structure.
155 Not used for types or decls. */
157 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
159 const unsigned char tree_code_length[] = {
164 /* Names of tree components.
165 Used for printing out the tree and error messages. */
166 #define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
168 const char *const tree_code_name[] = {
174 #define NULL_BINDING_LEVEL (struct binding_level *) NULL
176 /* A chain of binding_level structures awaiting reuse. */
178 static GTY(()) struct binding_level *free_binding_level;
180 /* The elements of `ridpointers' are identifier nodes
181 for the reserved type names and storage classes.
182 It is indexed by a RID_... value. */
183 tree *ridpointers = NULL;
185 /* language-specific flags. */
188 gfc_expand_function (tree fndecl)
192 if (DECL_INITIAL (fndecl)
193 && BLOCK_SUBBLOCKS (DECL_INITIAL (fndecl)))
195 /* Local static equivalenced variables are never seen by
196 check_global_declarations, so we need to output debug
199 t = BLOCK_SUBBLOCKS (DECL_INITIAL (fndecl));
200 for (t = BLOCK_VARS (t); t; t = TREE_CHAIN (t))
201 if (TREE_CODE (t) == VAR_DECL && DECL_HAS_VALUE_EXPR_P (t)
204 tree expr = DECL_VALUE_EXPR (t);
206 if (TREE_CODE (expr) == COMPONENT_REF
207 && TREE_CODE (TREE_OPERAND (expr, 0)) == VAR_DECL
208 && TREE_CODE (TREE_TYPE (TREE_OPERAND (expr, 0)))
210 && cgraph_varpool_node (TREE_OPERAND (expr, 0))->needed
211 && errorcount == 0 && sorrycount == 0)
213 timevar_push (TV_SYMOUT);
214 (*debug_hooks->global_decl) (t);
215 timevar_pop (TV_SYMOUT);
220 tree_rest_of_compilation (fndecl);
224 /* Prepare expr to be an argument of a TRUTH_NOT_EXPR,
225 or validate its data type for an `if' or `while' statement or ?..: exp.
227 This preparation consists of taking the ordinary
228 representation of an expression expr and producing a valid tree
229 boolean expression describing whether expr is nonzero. We could
230 simply always do build_binary_op (NE_EXPR, expr, boolean_false_node, 1),
231 but we optimize comparisons, &&, ||, and !.
233 The resulting type should always be `boolean_type_node'.
234 This is much simpler than the corresponding C version because we have a
235 distinct boolean type. */
238 gfc_truthvalue_conversion (tree expr)
240 switch (TREE_CODE (TREE_TYPE (expr)))
243 if (TREE_TYPE (expr) == boolean_type_node)
245 else if (COMPARISON_CLASS_P (expr))
247 TREE_TYPE (expr) = boolean_type_node;
250 else if (TREE_CODE (expr) == NOP_EXPR)
251 return build1 (NOP_EXPR, boolean_type_node,
252 TREE_OPERAND (expr, 0));
254 return build1 (NOP_EXPR, boolean_type_node, expr);
257 if (TREE_CODE (expr) == INTEGER_CST)
258 return integer_zerop (expr) ? boolean_false_node : boolean_true_node;
260 return build2 (NE_EXPR, boolean_type_node, expr,
261 build_int_cst (TREE_TYPE (expr), 0));
264 internal_error ("Unexpected type in truthvalue_conversion");
269 gfc_create_decls (void)
272 gfc_init_builtin_functions ();
274 /* Runtime/IO library functions. */
275 gfc_build_builtin_function_decls ();
277 gfc_init_constants ();
281 gfc_be_parse_file (int set_yydebug ATTRIBUTE_UNUSED)
288 gfc_generate_constructors ();
290 cgraph_finalize_compilation_unit ();
293 /* Tell the frontent about any errors. */
294 gfc_get_errors (&warnings, &errors);
295 errorcount += errors;
296 warningcount += warnings;
299 /* Initialize everything. */
304 #ifdef USE_MAPPED_LOCATION
305 linemap_add (&line_table, LC_ENTER, false, gfc_source_file, 1);
306 linemap_add (&line_table, LC_RENAME, false, "<built-in>", 0);
309 /* First initialize the backend. */
310 gfc_init_decl_processing ();
311 gfc_static_ctors = NULL_TREE;
313 /* Then the frontend. */
316 if (gfc_new_file () != SUCCESS)
317 fatal_error ("can't open input file: %s", gfc_source_file);
326 gfc_release_include_path ();
331 gfc_print_identifier (FILE * file ATTRIBUTE_UNUSED,
332 tree node ATTRIBUTE_UNUSED,
333 int indent ATTRIBUTE_UNUSED)
339 /* These functions and variables deal with binding contours. We only
340 need these functions for the list of PARM_DECLs, but we leave the
341 functions more general; these are a simplified version of the
342 functions from GNAT. */
344 /* For each binding contour we allocate a binding_level structure which records
345 the entities defined or declared in that contour. Contours include:
348 one for each subprogram definition
349 one for each compound statement (declare block)
351 Binding contours are used to create GCC tree BLOCK nodes. */
356 /* A chain of ..._DECL nodes for all variables, constants, functions,
357 parameters and type declarations. These ..._DECL nodes are chained
358 through the TREE_CHAIN field. Note that these ..._DECL nodes are stored
359 in the reverse of the order supplied to be compatible with the
362 /* For each level (except the global one), a chain of BLOCK nodes for all
363 the levels that were entered and exited one level down from this one. */
365 /* The binding level containing this one (the enclosing binding level). */
366 struct binding_level *level_chain;
369 /* The binding level currently in effect. */
370 static GTY(()) struct binding_level *current_binding_level = NULL;
372 /* The outermost binding level. This binding level is created when the
373 compiler is started and it will exist through the entire compilation. */
374 static GTY(()) struct binding_level *global_binding_level;
376 /* Binding level structures are initialized by copying this one. */
377 static struct binding_level clear_binding_level = { NULL, NULL, NULL };
379 /* Return nonzero if we are currently in the global binding level. */
382 global_bindings_p (void)
384 return current_binding_level == global_binding_level ? -1 : 0;
390 return current_binding_level->names;
393 /* Enter a new binding level. The input parameter is ignored, but has to be
394 specified for back-end compatibility. */
397 pushlevel (int ignore ATTRIBUTE_UNUSED)
399 struct binding_level *newlevel
400 = (struct binding_level *) ggc_alloc (sizeof (struct binding_level));
402 *newlevel = clear_binding_level;
404 /* Add this level to the front of the chain (stack) of levels that are
406 newlevel->level_chain = current_binding_level;
407 current_binding_level = newlevel;
410 /* Exit a binding level.
411 Pop the level off, and restore the state of the identifier-decl mappings
412 that were in effect when this level was entered.
414 If KEEP is nonzero, this level had explicit declarations, so
415 and create a "block" (a BLOCK node) for the level
416 to record its declarations and subblocks for symbol table output.
418 If FUNCTIONBODY is nonzero, this level is the body of a function,
419 so create a block as if KEEP were set and also clear out all
422 If REVERSE is nonzero, reverse the order of decls before putting
423 them into the BLOCK. */
426 poplevel (int keep, int reverse, int functionbody)
428 /* Points to a BLOCK tree node. This is the BLOCK node constructed for the
429 binding level that we are about to exit and which is returned by this
431 tree block_node = NULL_TREE;
433 tree subblock_chain = current_binding_level->blocks;
436 /* Reverse the list of XXXX_DECL nodes if desired. Note that the ..._DECL
437 nodes chained through the `names' field of current_binding_level are in
438 reverse order except for PARM_DECL node, which are explicitly stored in
440 decl_chain = (reverse) ? nreverse (current_binding_level->names)
441 : current_binding_level->names;
443 /* If there were any declarations in the current binding level, or if this
444 binding level is a function body, or if there are any nested blocks then
445 create a BLOCK node to record them for the life of this function. */
446 if (keep || functionbody)
447 block_node = build_block (keep ? decl_chain : 0, subblock_chain, 0, 0);
449 /* Record the BLOCK node just built as the subblock its enclosing scope. */
450 for (subblock_node = subblock_chain; subblock_node;
451 subblock_node = TREE_CHAIN (subblock_node))
452 BLOCK_SUPERCONTEXT (subblock_node) = block_node;
454 /* Clear out the meanings of the local variables of this level. */
456 for (subblock_node = decl_chain; subblock_node;
457 subblock_node = TREE_CHAIN (subblock_node))
458 if (DECL_NAME (subblock_node) != 0)
459 /* If the identifier was used or addressed via a local extern decl,
460 don't forget that fact. */
461 if (DECL_EXTERNAL (subblock_node))
463 if (TREE_USED (subblock_node))
464 TREE_USED (DECL_NAME (subblock_node)) = 1;
465 if (TREE_ADDRESSABLE (subblock_node))
466 TREE_ADDRESSABLE (DECL_ASSEMBLER_NAME (subblock_node)) = 1;
469 /* Pop the current level. */
470 current_binding_level = current_binding_level->level_chain;
474 /* This is the top level block of a function. The ..._DECL chain stored
475 in BLOCK_VARS are the function's parameters (PARM_DECL nodes). Don't
476 leave them in the BLOCK because they are found in the FUNCTION_DECL
478 DECL_INITIAL (current_function_decl) = block_node;
479 BLOCK_VARS (block_node) = 0;
483 current_binding_level->blocks
484 = chainon (current_binding_level->blocks, block_node);
487 /* If we did not make a block for the level just exited, any blocks made for
488 inner levels (since they cannot be recorded as subblocks in that level)
489 must be carried forward so they will later become subblocks of something
491 else if (subblock_chain)
492 current_binding_level->blocks
493 = chainon (current_binding_level->blocks, subblock_chain);
495 TREE_USED (block_node) = 1;
500 /* Insert BLOCK at the end of the list of subblocks of the
501 current binding level. This is used when a BIND_EXPR is expanded,
502 to handle the BLOCK node inside the BIND_EXPR. */
505 insert_block (tree block)
507 TREE_USED (block) = 1;
508 current_binding_level->blocks
509 = chainon (current_binding_level->blocks, block);
512 /* Records a ..._DECL node DECL as belonging to the current lexical scope.
513 Returns the ..._DECL node. */
518 /* External objects aren't nested, other objects may be. */
519 if ((DECL_EXTERNAL (decl)) || (decl == current_function_decl))
520 DECL_CONTEXT (decl) = 0;
522 DECL_CONTEXT (decl) = current_function_decl;
524 /* Put the declaration on the list. The list of declarations is in reverse
525 order. The list will be reversed later if necessary. This needs to be
526 this way for compatibility with the back-end. */
528 TREE_CHAIN (decl) = current_binding_level->names;
529 current_binding_level->names = decl;
531 /* For the declaration of a type, set its name if it is not already set. */
533 if (TREE_CODE (decl) == TYPE_DECL && TYPE_NAME (TREE_TYPE (decl)) == 0)
535 if (DECL_SOURCE_LINE (decl) == 0)
536 TYPE_NAME (TREE_TYPE (decl)) = decl;
538 TYPE_NAME (TREE_TYPE (decl)) = DECL_NAME (decl);
545 /* Like pushdecl, only it places X in GLOBAL_BINDING_LEVEL. */
548 pushdecl_top_level (tree x)
551 struct binding_level *b = current_binding_level;
553 current_binding_level = global_binding_level;
555 current_binding_level = b;
560 /* Clear the binding stack. */
562 gfc_clear_binding_stack (void)
564 while (!global_bindings_p ())
569 #ifndef CHAR_TYPE_SIZE
570 #define CHAR_TYPE_SIZE BITS_PER_UNIT
573 #ifndef INT_TYPE_SIZE
574 #define INT_TYPE_SIZE BITS_PER_WORD
578 #define SIZE_TYPE "long unsigned int"
580 /* Create tree nodes for the basic scalar types of Fortran 95,
581 and some nodes representing standard constants (0, 1, (void *) 0).
582 Initialize the global binding level.
583 Make definitions for built-in primitive functions. */
585 gfc_init_decl_processing (void)
587 current_function_decl = NULL;
588 current_binding_level = NULL_BINDING_LEVEL;
589 free_binding_level = NULL_BINDING_LEVEL;
591 /* Make the binding_level structure for global names. We move all
592 variables that are in a COMMON block to this binding level. */
594 global_binding_level = current_binding_level;
596 /* Build common tree nodes. char_type_node is unsigned because we
597 only use it for actual characters, not for INTEGER(1). Also, we
598 want double_type_node to actually have double precision. */
599 build_common_tree_nodes (false, false);
600 set_sizetype (long_unsigned_type_node);
601 build_common_tree_nodes_2 (0);
602 void_list_node = build_tree_list (NULL_TREE, void_type_node);
604 /* Set up F95 type nodes. */
609 /* Mark EXP saying that we need to be able to take the
610 address of it; it should not be allocated in a register.
611 In Fortran 95 this is only the case for variables with
612 the TARGET attribute, but we implement it here for a
613 likely future Cray pointer extension.
614 Value is 1 if successful. */
615 /* TODO: Check/fix mark_addressable. */
617 gfc_mark_addressable (tree exp)
619 register tree x = exp;
621 switch (TREE_CODE (x))
628 x = TREE_OPERAND (x, 0);
632 TREE_ADDRESSABLE (x) = 1;
639 if (DECL_REGISTER (x) && !TREE_ADDRESSABLE (x) && DECL_NONLOCAL (x))
644 ("global register variable %qs used in nested function",
645 IDENTIFIER_POINTER (DECL_NAME (x)));
648 pedwarn ("register variable %qs used in nested function",
649 IDENTIFIER_POINTER (DECL_NAME (x)));
651 else if (DECL_REGISTER (x) && !TREE_ADDRESSABLE (x))
655 error ("address of global register variable %qs requested",
656 IDENTIFIER_POINTER (DECL_NAME (x)));
661 /* If we are making this addressable due to its having
662 volatile components, give a different error message. Also
663 handle the case of an unnamed parameter by not trying
666 else if (C_TYPE_FIELDS_VOLATILE (TREE_TYPE (x)))
668 error ("cannot put object with volatile field into register");
673 pedwarn ("address of register variable %qs requested",
674 IDENTIFIER_POINTER (DECL_NAME (x)));
679 TREE_ADDRESSABLE (x) = 1;
686 /* press the big red button - garbage (ggc) collection is on */
690 /* Builtin function initialization. */
692 /* Return a definition for a builtin function named NAME and whose data type
693 is TYPE. TYPE should be a function type with argument types.
694 FUNCTION_CODE tells later passes how to compile calls to this function.
695 See tree.h for its possible values.
697 If LIBRARY_NAME is nonzero, use that for DECL_ASSEMBLER_NAME,
698 the name to be called if we can't opencode the function. If
699 ATTRS is nonzero, use that for the function's attribute list. */
702 builtin_function (const char *name,
705 enum built_in_class class,
706 const char *library_name,
709 tree decl = build_decl (FUNCTION_DECL, get_identifier (name), type);
710 DECL_EXTERNAL (decl) = 1;
711 TREE_PUBLIC (decl) = 1;
713 SET_DECL_ASSEMBLER_NAME (decl, get_identifier (library_name));
714 make_decl_rtl (decl);
716 DECL_BUILT_IN_CLASS (decl) = class;
717 DECL_FUNCTION_CODE (decl) = function_code;
719 /* Possibly apply some default attributes to this built-in function. */
722 /* FORNOW the only supported attribute is "const". If others need
723 to be supported then see the more general solution in procedure
724 builtin_function in c-decl.c */
725 if (lookup_attribute ( "const", attrs ))
726 TREE_READONLY (decl) = 1;
734 gfc_define_builtin (const char * name,
737 const char * library_name,
742 decl = builtin_function (name, type, code, BUILT_IN_NORMAL,
743 library_name, NULL_TREE);
745 TREE_READONLY (decl) = 1;
747 built_in_decls[code] = decl;
748 implicit_built_in_decls[code] = decl;
752 #define DO_DEFINE_MATH_BUILTIN(code, name, argtype, tbase) \
753 gfc_define_builtin ("__builtin_" name "l", tbase##longdouble[argtype], \
754 BUILT_IN_ ## code ## L, name "l", true); \
755 gfc_define_builtin ("__builtin_" name, tbase##double[argtype], \
756 BUILT_IN_ ## code, name, true); \
757 gfc_define_builtin ("__builtin_" name "f", tbase##float[argtype], \
758 BUILT_IN_ ## code ## F, name "f", true);
760 #define DEFINE_MATH_BUILTIN(code, name, argtype) \
761 DO_DEFINE_MATH_BUILTIN (code, name, argtype, mfunc_)
763 #define DEFINE_MATH_BUILTIN_C(code, name, argtype) \
764 DO_DEFINE_MATH_BUILTIN (code, name, argtype, mfunc_) \
765 DO_DEFINE_MATH_BUILTIN (C##code, "c" name, argtype, mfunc_c)
768 /* Create function types for builtin functions. */
771 build_builtin_fntypes (tree * fntype, tree type)
775 /* type (*) (type) */
776 tmp = tree_cons (NULL_TREE, type, void_list_node);
777 fntype[0] = build_function_type (type, tmp);
778 /* type (*) (type, type) */
779 tmp = tree_cons (NULL_TREE, type, tmp);
780 fntype[1] = build_function_type (type, tmp);
781 /* type (*) (int, type) */
782 tmp = tree_cons (NULL_TREE, integer_type_node, void_list_node);
783 tmp = tree_cons (NULL_TREE, type, tmp);
784 fntype[2] = build_function_type (type, tmp);
788 /* Initialization of builtin function nodes. */
791 gfc_init_builtin_functions (void)
794 tree mfunc_double[3];
795 tree mfunc_longdouble[3];
796 tree mfunc_cfloat[3];
797 tree mfunc_cdouble[3];
798 tree mfunc_clongdouble[3];
799 tree func_cfloat_float;
800 tree func_cdouble_double;
801 tree func_clongdouble_longdouble;
805 build_builtin_fntypes (mfunc_float, float_type_node);
806 build_builtin_fntypes (mfunc_double, double_type_node);
807 build_builtin_fntypes (mfunc_longdouble, long_double_type_node);
808 build_builtin_fntypes (mfunc_cfloat, complex_float_type_node);
809 build_builtin_fntypes (mfunc_cdouble, complex_double_type_node);
810 build_builtin_fntypes (mfunc_clongdouble, complex_long_double_type_node);
812 tmp = tree_cons (NULL_TREE, complex_float_type_node, void_list_node);
813 func_cfloat_float = build_function_type (float_type_node, tmp);
815 tmp = tree_cons (NULL_TREE, complex_double_type_node, void_list_node);
816 func_cdouble_double = build_function_type (double_type_node, tmp);
818 tmp = tree_cons (NULL_TREE, complex_long_double_type_node, void_list_node);
819 func_clongdouble_longdouble =
820 build_function_type (long_double_type_node, tmp);
822 #include "mathbuiltins.def"
824 /* We define these separately as the fortran versions have different
825 semantics (they return an integer type) */
826 gfc_define_builtin ("__builtin_roundl", mfunc_longdouble[0],
827 BUILT_IN_ROUNDL, "roundl", true);
828 gfc_define_builtin ("__builtin_round", mfunc_double[0],
829 BUILT_IN_ROUND, "round", true);
830 gfc_define_builtin ("__builtin_roundf", mfunc_float[0],
831 BUILT_IN_ROUNDF, "roundf", true);
833 gfc_define_builtin ("__builtin_truncl", mfunc_longdouble[0],
834 BUILT_IN_TRUNCL, "truncl", true);
835 gfc_define_builtin ("__builtin_trunc", mfunc_double[0],
836 BUILT_IN_TRUNC, "trunc", true);
837 gfc_define_builtin ("__builtin_truncf", mfunc_float[0],
838 BUILT_IN_TRUNCF, "truncf", true);
840 gfc_define_builtin ("__builtin_cabsl", func_clongdouble_longdouble,
841 BUILT_IN_CABSL, "cabsl", true);
842 gfc_define_builtin ("__builtin_cabs", func_cdouble_double,
843 BUILT_IN_CABS, "cabs", true);
844 gfc_define_builtin ("__builtin_cabsf", func_cfloat_float,
845 BUILT_IN_CABSF, "cabsf", true);
847 gfc_define_builtin ("__builtin_copysignl", mfunc_longdouble[1],
848 BUILT_IN_COPYSIGNL, "copysignl", true);
849 gfc_define_builtin ("__builtin_copysign", mfunc_double[1],
850 BUILT_IN_COPYSIGN, "copysign", true);
851 gfc_define_builtin ("__builtin_copysignf", mfunc_float[1],
852 BUILT_IN_COPYSIGNF, "copysignf", true);
854 /* These are used to implement the ** operator. */
855 gfc_define_builtin ("__builtin_powl", mfunc_longdouble[1],
856 BUILT_IN_POWL, "powl", true);
857 gfc_define_builtin ("__builtin_pow", mfunc_double[1],
858 BUILT_IN_POW, "pow", true);
859 gfc_define_builtin ("__builtin_powf", mfunc_float[1],
860 BUILT_IN_POWF, "powf", true);
862 /* Other builtin functions we use. */
864 tmp = tree_cons (NULL_TREE, integer_type_node, void_list_node);
865 ftype = build_function_type (integer_type_node, tmp);
866 gfc_define_builtin ("__builtin_clz", ftype, BUILT_IN_CLZ,
867 "__builtin_clz", true);
869 tmp = tree_cons (NULL_TREE, long_integer_type_node, void_list_node);
870 ftype = build_function_type (integer_type_node, tmp);
871 gfc_define_builtin ("__builtin_clzl", ftype, BUILT_IN_CLZL,
872 "__builtin_clzl", true);
874 tmp = tree_cons (NULL_TREE, long_long_integer_type_node, void_list_node);
875 ftype = build_function_type (integer_type_node, tmp);
876 gfc_define_builtin ("__builtin_clzll", ftype, BUILT_IN_CLZLL,
877 "__builtin_clzll", true);
879 tmp = tree_cons (NULL_TREE, long_integer_type_node, void_list_node);
880 tmp = tree_cons (NULL_TREE, long_integer_type_node, tmp);
881 ftype = build_function_type (long_integer_type_node, tmp);
882 gfc_define_builtin ("__builtin_expect", ftype, BUILT_IN_EXPECT,
883 "__builtin_expect", true);
885 build_common_builtin_nodes ();
886 targetm.init_builtins ();
889 #undef DEFINE_MATH_BUILTIN_C
890 #undef DEFINE_MATH_BUILTIN
892 #include "gt-fortran-f95-lang.h"
893 #include "gtype-fortran.h"