1 /* Java(TM) language-specific utility routines.
2 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
3 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA.
22 Java and all Java-based marks are trademarks or registered trademarks
23 of Sun Microsystems, Inc. in the United States and other countries.
24 The Free Software Foundation is independent of Sun Microsystems, Inc. */
26 /* Hacked by Per Bothner <bothner@cygnus.com> February 1996. */
30 #include "coretypes.h"
36 #include "java-tree.h"
39 #include "langhooks.h"
40 #include "langhooks-def.h"
43 #include "diagnostic.h"
44 #include "tree-inline.h"
45 #include "splay-tree.h"
46 #include "tree-dump.h"
50 static bool java_init (void);
51 static void java_finish (void);
52 static unsigned int java_init_options (unsigned int, const char **);
53 static bool java_post_options (const char **);
55 static int java_handle_option (size_t scode, const char *arg, int value);
56 static void put_decl_string (const char *, int);
57 static void put_decl_node (tree);
58 static void java_print_error_function (diagnostic_context *, const char *);
59 static tree java_tree_inlining_walk_subtrees (tree *, int *, walk_tree_fn,
60 void *, struct pointer_set_t *);
61 static int merge_init_test_initialization (void * *, void *);
62 static int inline_init_test_initialization (void * *, void *);
63 static bool java_can_use_bit_fields_p (void);
64 static bool java_dump_tree (void *, tree);
65 static void dump_compound_expr (dump_info_p, tree);
66 static bool java_decl_ok_for_sibcall (tree);
67 static tree java_get_callee_fndecl (tree);
68 static void java_clear_binding_stack (void);
70 #ifndef TARGET_OBJECT_SUFFIX
71 # define TARGET_OBJECT_SUFFIX ".o"
74 /* Table indexed by tree code giving a string containing a character
75 classifying the tree code. Possibilities are
76 t, d, s, c, r, <, 1 and 2. See java/java-tree.def for details. */
78 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
80 const enum tree_code_class tree_code_type[] = {
83 #include "java-tree.def"
87 /* Table indexed by tree code giving number of expression
88 operands beyond the fixed part of the node structure.
89 Not used for types or decls. */
91 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
93 const unsigned char tree_code_length[] = {
96 #include "java-tree.def"
100 /* Names of tree components.
101 Used for printing out the tree and error messages. */
102 #define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
104 const char *const tree_code_name[] = {
107 #include "java-tree.def"
111 /* Used to avoid printing error messages with bogus function
112 prototypes. Starts out false. */
113 static bool inhibit_error_function_printing;
115 int compiling_from_source;
117 const char *resource_name;
119 /* When nonzero, -Wall was turned on. */
122 /* The encoding of the source file. */
123 const char *current_encoding = NULL;
125 /* When nonzero, report use of deprecated classes, methods, or fields. */
126 int flag_deprecated = 1;
128 /* When zero, don't optimize static class initialization. This flag shouldn't
129 be tested alone, use STATIC_CLASS_INITIALIZATION_OPTIMIZATION_P instead. */
130 /* FIXME: Make this work with gimplify. */
131 /* int flag_optimize_sci = 0; */
133 /* Don't attempt to verify invocations. */
134 int flag_verify_invocations = 0;
136 /* True if the new bytecode verifier should be used. */
137 int flag_new_verifier = 0;
139 /* When nonzero, print extra version information. */
140 static int v_flag = 0;
144 /* Variable controlling how dependency tracking is enabled in
146 static int dependency_tracking = 0;
148 /* Flag values for DEPENDENCY_TRACKING. */
149 #define DEPEND_SET_FILE 1
150 #define DEPEND_ENABLE 2
151 #define DEPEND_TARGET_SET 4
152 #define DEPEND_FILE_ALREADY_SET 8
154 struct language_function GTY(())
159 #undef LANG_HOOKS_NAME
160 #define LANG_HOOKS_NAME "GNU Java"
161 #undef LANG_HOOKS_INIT
162 #define LANG_HOOKS_INIT java_init
163 #undef LANG_HOOKS_FINISH
164 #define LANG_HOOKS_FINISH java_finish
165 #undef LANG_HOOKS_INIT_OPTIONS
166 #define LANG_HOOKS_INIT_OPTIONS java_init_options
167 #undef LANG_HOOKS_HANDLE_OPTION
168 #define LANG_HOOKS_HANDLE_OPTION java_handle_option
169 #undef LANG_HOOKS_POST_OPTIONS
170 #define LANG_HOOKS_POST_OPTIONS java_post_options
171 #undef LANG_HOOKS_PARSE_FILE
172 #define LANG_HOOKS_PARSE_FILE java_parse_file
173 #undef LANG_HOOKS_MARK_ADDRESSABLE
174 #define LANG_HOOKS_MARK_ADDRESSABLE java_mark_addressable
175 #undef LANG_HOOKS_TRUTHVALUE_CONVERSION
176 #define LANG_HOOKS_TRUTHVALUE_CONVERSION java_truthvalue_conversion
177 #undef LANG_HOOKS_DUP_LANG_SPECIFIC_DECL
178 #define LANG_HOOKS_DUP_LANG_SPECIFIC_DECL java_dup_lang_specific_decl
179 #undef LANG_HOOKS_DECL_PRINTABLE_NAME
180 #define LANG_HOOKS_DECL_PRINTABLE_NAME lang_printable_name
181 #undef LANG_HOOKS_PRINT_ERROR_FUNCTION
182 #define LANG_HOOKS_PRINT_ERROR_FUNCTION java_print_error_function
183 #undef LANG_HOOKS_CAN_USE_BIT_FIELDS_P
184 #define LANG_HOOKS_CAN_USE_BIT_FIELDS_P java_can_use_bit_fields_p
186 #undef LANG_HOOKS_TYPE_FOR_MODE
187 #define LANG_HOOKS_TYPE_FOR_MODE java_type_for_mode
188 #undef LANG_HOOKS_TYPE_FOR_SIZE
189 #define LANG_HOOKS_TYPE_FOR_SIZE java_type_for_size
190 #undef LANG_HOOKS_SIGNED_TYPE
191 #define LANG_HOOKS_SIGNED_TYPE java_signed_type
192 #undef LANG_HOOKS_UNSIGNED_TYPE
193 #define LANG_HOOKS_UNSIGNED_TYPE java_unsigned_type
194 #undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
195 #define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE java_signed_or_unsigned_type
197 #undef LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN
198 #define LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN java_dump_tree
200 #undef LANG_HOOKS_GIMPLIFY_EXPR
201 #define LANG_HOOKS_GIMPLIFY_EXPR java_gimplify_expr
203 #undef LANG_HOOKS_TREE_INLINING_WALK_SUBTREES
204 #define LANG_HOOKS_TREE_INLINING_WALK_SUBTREES java_tree_inlining_walk_subtrees
206 #undef LANG_HOOKS_DECL_OK_FOR_SIBCALL
207 #define LANG_HOOKS_DECL_OK_FOR_SIBCALL java_decl_ok_for_sibcall
209 #undef LANG_HOOKS_GET_CALLEE_FNDECL
210 #define LANG_HOOKS_GET_CALLEE_FNDECL java_get_callee_fndecl
212 #undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION
213 #define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION java_expand_body
215 #undef LANG_HOOKS_CLEAR_BINDING_STACK
216 #define LANG_HOOKS_CLEAR_BINDING_STACK java_clear_binding_stack
218 /* Each front end provides its own. */
219 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
222 * process java-specific compiler command-line options
223 * return 0, but do not complain if the option is not recognized.
226 java_handle_option (size_t scode, const char *arg, int value)
228 enum opt_code code = (enum opt_code) scode;
233 jcf_path_include_arg (arg);
237 jcf_dependency_init (1);
238 dependency_tracking |= DEPEND_ENABLE;
242 jcf_dependency_init (1);
243 dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
247 jcf_dependency_set_dep_file (arg);
248 dependency_tracking |= DEPEND_FILE_ALREADY_SET;
252 jcf_dependency_init (0);
253 dependency_tracking |= DEPEND_ENABLE;
257 jcf_dependency_init (0);
258 dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
262 jcf_dependency_print_dummies ();
266 jcf_dependency_set_target (arg);
267 dependency_tracking |= DEPEND_TARGET_SET;
272 flag_redundant = value;
273 flag_extraneous_semicolon = value;
274 /* When -Wall given, enable -Wunused. We do this because the C
275 compiler does it, and people expect it. */
279 case OPT_fenable_assertions_:
280 add_enable_assert (arg, value);
283 case OPT_fenable_assertions:
284 add_enable_assert ("", value);
287 case OPT_fdisable_assertions_:
288 add_enable_assert (arg, !value);
291 case OPT_fdisable_assertions:
292 add_enable_assert ("", !value);
295 case OPT_fassume_compiled_:
296 add_assume_compiled (arg, !value);
299 case OPT_fassume_compiled:
300 add_assume_compiled ("", !value);
303 case OPT_fbootclasspath_:
304 jcf_path_bootclasspath_arg (arg);
307 case OPT_fclasspath_:
308 case OPT_fCLASSPATH_:
309 jcf_path_classpath_arg (arg);
312 case OPT_fcompile_resource_:
317 if (!dump_switch_p (arg))
322 current_encoding = arg;
326 jcf_path_extdirs_arg (arg);
329 case OPT_foutput_class_dir_:
330 jcf_write_base_directory = arg;
338 if (cl_options[code].flags & CL_Java)
346 /* Global open file. */
353 extern int flag_minimal_debug;
354 flag_minimal_debug = 0;
357 /* FIXME: Indirect dispatch isn't yet compatible with static class
358 init optimization. */
359 if (flag_indirect_dispatch)
360 always_initialize_class_p = true;
362 /* Force minimum function alignment if g++ uses the least significant
363 bit of function pointers to store the virtual bit. This is required
364 to keep vtables compatible. */
365 if (TARGET_PTRMEMFUNC_VBIT_LOCATION == ptrmemfunc_vbit_in_pfn
366 && force_align_functions_log < 1)
367 force_align_functions_log = 1;
369 jcf_path_seal (v_flag);
371 java_init_decl_processing ();
373 using_eh_for_cleanups ();
381 jcf_dependency_write ();
384 /* Buffer used by lang_printable_name. */
385 static char *decl_buf = NULL;
387 /* Allocated size of decl_buf. */
388 static int decl_buflen = 0;
390 /* Length of used part of decl_buf; position for next character. */
391 static int decl_bufpos = 0;
393 /* Append the string STR to decl_buf.
394 It length is given by LEN; -1 means the string is nul-terminated. */
397 put_decl_string (const char *str, int len)
401 if (decl_bufpos + len >= decl_buflen)
403 if (decl_buf == NULL)
405 decl_buflen = len + 100;
406 decl_buf = xmalloc (decl_buflen);
411 decl_buf = xrealloc (decl_buf, decl_buflen);
414 strcpy (decl_buf + decl_bufpos, str);
418 /* Append to decl_buf a printable name for NODE. */
421 put_decl_node (tree node)
424 if (TREE_CODE (node) == POINTER_TYPE)
426 node = TREE_TYPE (node);
429 if (DECL_P (node) && DECL_NAME (node) != NULL_TREE)
431 if (TREE_CODE (node) == FUNCTION_DECL)
433 /* We want to print the type the DECL belongs to. We don't do
434 that when we handle constructors. */
435 if (! DECL_CONSTRUCTOR_P (node)
436 && ! DECL_ARTIFICIAL (node) && DECL_CONTEXT (node))
438 put_decl_node (TYPE_NAME (DECL_CONTEXT (node)));
439 put_decl_string (".", 1);
441 if (! DECL_CONSTRUCTOR_P (node))
442 put_decl_node (DECL_NAME (node));
443 if (TREE_TYPE (node) != NULL_TREE)
446 tree args = TYPE_ARG_TYPES (TREE_TYPE (node));
447 if (TREE_CODE (TREE_TYPE (node)) == METHOD_TYPE)
448 args = TREE_CHAIN (args);
449 put_decl_string ("(", 1);
450 for ( ; args != end_params_node; args = TREE_CHAIN (args), i++)
453 put_decl_string (",", 1);
454 put_decl_node (TREE_VALUE (args));
456 put_decl_string (")", 1);
460 put_decl_node (DECL_NAME (node));
462 else if (TYPE_P (node) && TYPE_NAME (node) != NULL_TREE)
464 if (TREE_CODE (node) == RECORD_TYPE && TYPE_ARRAY_P (node))
466 put_decl_node (TYPE_ARRAY_ELEMENT (node));
467 put_decl_string("[]", 2);
469 else if (node == promoted_byte_type_node)
470 put_decl_string ("byte", 4);
471 else if (node == promoted_short_type_node)
472 put_decl_string ("short", 5);
473 else if (node == promoted_char_type_node)
474 put_decl_string ("char", 4);
475 else if (node == promoted_boolean_type_node)
476 put_decl_string ("boolean", 7);
477 else if (node == void_type_node && was_pointer)
478 put_decl_string ("null", 4);
480 put_decl_node (TYPE_NAME (node));
482 else if (TREE_CODE (node) == IDENTIFIER_NODE)
483 put_decl_string (IDENTIFIER_POINTER (node), IDENTIFIER_LENGTH (node));
485 put_decl_string ("<unknown>", -1);
488 /* Return a user-friendly name for DECL.
489 The resulting string is only valid until the next call.
490 The value of the hook decl_printable_name is this function,
491 which is also called directly by java_print_error_function. */
494 lang_printable_name (tree decl, int v)
497 if (v == 0 && TREE_CODE (decl) == FUNCTION_DECL)
498 put_decl_node (DECL_NAME (decl));
500 put_decl_node (decl);
501 put_decl_string ("", 1);
505 /* Print on stderr the current class and method context. This function
506 is the value of the hook print_error_function. */
508 static GTY(()) tree last_error_function_context;
509 static GTY(()) tree last_error_function;
511 java_print_error_function (diagnostic_context *context ATTRIBUTE_UNUSED,
514 /* Don't print error messages with bogus function prototypes. */
515 if (inhibit_error_function_printing)
518 if (current_function_decl != NULL
519 && DECL_CONTEXT (current_function_decl) != last_error_function_context)
522 fprintf (stderr, "%s: ", file);
524 last_error_function_context = DECL_CONTEXT (current_function_decl);
525 fprintf (stderr, "In class '%s':\n",
526 lang_printable_name (last_error_function_context, 0));
528 if (last_error_function != current_function_decl)
531 fprintf (stderr, "%s: ", file);
533 if (current_function_decl == NULL)
534 fprintf (stderr, "At top level:\n");
537 const char *name = lang_printable_name (current_function_decl, 2);
538 fprintf (stderr, "In %s '%s':\n",
539 (DECL_CONSTRUCTOR_P (current_function_decl) ? "constructor"
544 last_error_function = current_function_decl;
549 /* Called to install the PRINT_ERROR_FUNCTION hook differently
550 according to LEVEL. LEVEL is 1 during early parsing, when function
551 prototypes aren't fully resolved. java_print_error_function is set
552 so it doesn't print incomplete function prototypes. When LEVEL is
553 2, function prototypes are fully resolved and can be printed when
557 lang_init_source (int level)
559 inhibit_error_function_printing = (level == 1);
563 java_init_options (unsigned int argc ATTRIBUTE_UNUSED,
564 const char **argv ATTRIBUTE_UNUSED)
566 flag_bounds_check = 1;
568 flag_non_call_exceptions = 1;
570 /* In Java floating point operations never trap. */
571 flag_trapping_math = 0;
573 /* In Java arithmetic overflow always wraps around. */
576 /* Java requires left-to-right evaluation of subexpressions. */
577 flag_evaluation_order = 1;
585 java_can_use_bit_fields_p (void)
587 /* The bit-field optimizations cause problems when generating class
589 return flag_emit_class_files ? false : true;
592 /* Post-switch processing. */
594 java_post_options (const char **pfilename)
596 const char *filename = *pfilename;
598 /* Use tree inlining. */
601 if (flag_inline_functions)
602 flag_inline_trees = 2;
604 /* An absolute requirement: if we're not using indirect dispatch, we
605 must always verify everything. */
606 if (! flag_indirect_dispatch)
607 flag_verify_invocations = true;
610 /* If we are using indirect dispatch, then we want the new
612 flag_new_verifier = 1;
615 /* Open input file. */
617 if (filename == 0 || !strcmp (filename, "-"))
622 if (dependency_tracking)
623 error ("can't do dependency tracking with input from stdin");
627 if (dependency_tracking)
631 /* If the target is set and the output filename is set, then
632 there's no processing to do here. Otherwise we must
633 compute one or the other. */
634 if (! ((dependency_tracking & DEPEND_TARGET_SET)
635 && (dependency_tracking & DEPEND_FILE_ALREADY_SET)))
637 dot = strrchr (filename, '.');
639 error ("couldn't determine target name for dependency tracking");
642 char *buf = xmalloc (dot - filename +
643 3 + sizeof (TARGET_OBJECT_SUFFIX));
644 strncpy (buf, filename, dot - filename);
646 /* If emitting class files, we might have multiple
647 targets. The class generation code takes care of
648 registering them. Otherwise we compute the
650 if ((dependency_tracking & DEPEND_TARGET_SET))
652 else if (flag_emit_class_files)
653 jcf_dependency_set_target (NULL);
656 strcpy (buf + (dot - filename), TARGET_OBJECT_SUFFIX);
657 jcf_dependency_set_target (buf);
660 if ((dependency_tracking & DEPEND_FILE_ALREADY_SET))
662 else if ((dependency_tracking & DEPEND_SET_FILE))
664 strcpy (buf + (dot - filename), ".d");
665 jcf_dependency_set_dep_file (buf);
668 jcf_dependency_set_dep_file ("-");
675 #ifdef USE_MAPPED_LOCATION
676 linemap_add (&line_table, LC_ENTER, false, filename, 0);
677 linemap_add (&line_table, LC_RENAME, false, "<built-in>", 0);
680 /* Initialize the compiler back end. */
684 /* Return either DECL or its known constant value (if it has one). */
687 decl_constant_value (tree decl)
689 if (/* Don't change a variable array bound or initial value to a constant
690 in a place where a variable is invalid. */
691 current_function_decl != 0
692 && ! TREE_THIS_VOLATILE (decl)
693 && TREE_READONLY (decl)
694 && DECL_INITIAL (decl) != 0
695 && TREE_CODE (DECL_INITIAL (decl)) != ERROR_MARK
696 /* This is invalid if initial value is not constant.
697 If it has either a function call, a memory reference,
698 or a variable, then re-evaluating it could give different results. */
699 && TREE_CONSTANT (DECL_INITIAL (decl))
700 /* Check for cases where this is sub-optimal, even though valid. */
701 && TREE_CODE (DECL_INITIAL (decl)) != CONSTRUCTOR)
702 return DECL_INITIAL (decl);
706 /* Walk the language specific tree nodes during inlining. */
709 java_tree_inlining_walk_subtrees (tree *tp ATTRIBUTE_UNUSED,
710 int *subtrees ATTRIBUTE_UNUSED,
711 walk_tree_fn func ATTRIBUTE_UNUSED,
712 void *data ATTRIBUTE_UNUSED,
713 struct pointer_set_t *pset ATTRIBUTE_UNUSED)
718 #define WALK_SUBTREE(NODE) \
721 result = walk_tree (&(NODE), func, data, pset); \
731 code = TREE_CODE (t);
735 WALK_SUBTREE (BLOCK_EXPR_BODY (t));
738 case EXIT_BLOCK_EXPR:
749 /* Every call to a static constructor has an associated boolean
750 variable which is in the outermost scope of the calling method.
751 This variable is used to avoid multiple calls to the static
752 constructor for each class.
754 It looks something like this:
758 boolean dummy = OtherClass.is_initialized;
763 OtherClass.initialize();
765 ... use OtherClass.data ...
768 Each of these boolean variables has an entry in the
769 DECL_FUNCTION_INIT_TEST_TABLE of a method. When inlining a method
770 we must merge the DECL_FUNCTION_INIT_TEST_TABLE from the function
771 being inlined and create the boolean variables in the outermost
772 scope of the method being inlined into. */
774 /* Create a mapping from a boolean variable in a method being inlined
775 to one in the scope of the method being inlined into. */
778 merge_init_test_initialization (void **entry, void *x)
780 struct treetreehash_entry *ite = (struct treetreehash_entry *) *entry;
781 splay_tree decl_map = (splay_tree)x;
783 tree *init_test_decl;
785 /* See if we have remapped this declaration. If we haven't there's
786 a bug in the inliner. */
787 n = splay_tree_lookup (decl_map, (splay_tree_key) ite->value);
791 /* Create a new entry for the class and its remapped boolean
792 variable. If we already have a mapping for this class we've
793 already initialized it, so don't overwrite the value. */
794 init_test_decl = java_treetreehash_new
795 (DECL_FUNCTION_INIT_TEST_TABLE (current_function_decl), ite->key);
796 if (!*init_test_decl)
797 *init_test_decl = (tree)n->value;
799 /* This fixes a weird case.
801 The front end assumes that once we have called a method that
802 initializes some class, we can assume the class is initialized. It
803 does this by setting the DECL_INITIAL of the init_test_decl for that
804 class, and no initializations are emitted for that class.
806 However, what if the method that is suppoed to do the initialization
807 is itself inlined in the caller? When expanding the called method
808 we'll assume that the class initialization has already been done,
809 because the DECL_INITIAL of the init_test_decl is set.
811 To fix this we remove the DECL_INITIAL (in the caller scope) of all
812 the init_test_decls corresponding to classes initialized by the
813 inlined method. This makes the caller no longer assume that the
814 method being inlined does any class initializations. */
815 DECL_INITIAL (*init_test_decl) = NULL;
820 /* Merge the DECL_FUNCTION_INIT_TEST_TABLE from the function we're
824 java_inlining_merge_static_initializers (tree fn, void *decl_map)
827 (DECL_FUNCTION_INIT_TEST_TABLE (fn),
828 merge_init_test_initialization, decl_map);
831 /* Lookup a DECL_FUNCTION_INIT_TEST_TABLE entry in the method we're
832 inlining into. If we already have a corresponding entry in that
833 class we don't need to create another one, so we create a mapping
834 from the variable in the inlined class to the corresponding
838 inline_init_test_initialization (void **entry, void *x)
840 struct treetreehash_entry *ite = (struct treetreehash_entry *) *entry;
841 splay_tree decl_map = (splay_tree)x;
843 tree h = java_treetreehash_find
844 (DECL_FUNCTION_INIT_TEST_TABLE (current_function_decl), ite->key);
847 splay_tree_insert (decl_map,
848 (splay_tree_key) ite->value,
849 (splay_tree_value) h);
853 /* Look up the boolean variables in the DECL_FUNCTION_INIT_TEST_TABLE
854 of a method being inlined. For each hone, if we already have a
855 variable associated with the same class in the method being inlined
856 into, create a new mapping for it. */
859 java_inlining_map_static_initializers (tree fn, void *decl_map)
862 (DECL_FUNCTION_INIT_TEST_TABLE (fn),
863 inline_init_test_initialization, decl_map);
866 /* Avoid voluminous output for deep recursion of compound exprs. */
869 dump_compound_expr (dump_info_p di, tree t)
875 switch (TREE_CODE (TREE_OPERAND (t, i)))
878 dump_compound_expr (di, TREE_OPERAND (t, i));
881 case EXPR_WITH_FILE_LOCATION:
883 tree wfl_node = EXPR_WFL_NODE (TREE_OPERAND (t, i));
884 dump_child ("expr", wfl_node);
889 dump_child ("expr", TREE_OPERAND (t, i));
895 java_dump_tree (void *dump_info, tree t)
898 dump_info_p di = (dump_info_p) dump_info;
900 /* Figure out what kind of node this is. */
901 code = TREE_CODE (t);
906 dump_child ("args", DECL_ARGUMENTS (t));
907 if (DECL_EXTERNAL (t))
908 dump_string (di, "undefined");
910 dump_string (di, "extern");
912 dump_string (di, "static");
913 if (DECL_LANG_SPECIFIC (t))
914 dump_child ("body", DECL_FUNCTION_BODY (t));
915 if (DECL_LANG_SPECIFIC (t) && !dump_flag (di, TDF_SLIM, t))
916 dump_child ("inline body", DECL_SAVED_TREE (t));
920 dump_child ("expr", TREE_OPERAND (t, 0));
924 dump_child ("goto", TREE_OPERAND (t, 0));
928 dump_child ("label", TREE_OPERAND (t, 0));
931 case LABELED_BLOCK_EXPR:
932 dump_child ("label", LABELED_BLOCK_LABEL (t));
933 dump_child ("block", LABELED_BLOCK_BODY (t));
936 case EXIT_BLOCK_EXPR:
937 dump_child ("block", EXIT_BLOCK_LABELED_BLOCK (t));
941 if (BLOCK_EXPR_BODY (t))
943 tree local = BLOCK_VARS (t);
946 tree next = TREE_CHAIN (local);
947 dump_child ("var", local);
952 tree block = BLOCK_EXPR_BODY (t);
953 dump_child ("body", block);
954 block = TREE_CHAIN (block);
960 if (!dump_flag (di, TDF_SLIM, t))
962 dump_compound_expr (di, t);
971 /* Java calls can't, in general, be sibcalls because we need an
972 accurate stack trace in order to guarantee correct operation of
973 methods such as Class.forName(String) and
974 SecurityManager.getClassContext(). */
977 java_decl_ok_for_sibcall (tree decl)
979 return decl != NULL && DECL_CONTEXT (decl) == output_class;
982 /* Given a call_expr, try to figure out what its target might be. In
983 the case of an indirection via the atable, search for the decl. If
984 the decl is external, we return NULL. If we don't, the optimizer
985 will replace the indirection with a direct call, which undoes the
986 purpose of the atable indirection. */
988 java_get_callee_fndecl (tree call_expr)
990 tree method, table, element, atable_methods;
994 /* FIXME: This is disabled because we end up passing calls through
995 the PLT, and we do NOT want to do that. */
998 if (TREE_CODE (call_expr) != CALL_EXPR)
1000 method = TREE_OPERAND (call_expr, 0);
1001 STRIP_NOPS (method);
1002 if (TREE_CODE (method) != ARRAY_REF)
1004 table = TREE_OPERAND (method, 0);
1005 if (! DECL_LANG_SPECIFIC(table)
1006 || !DECL_OWNER (table)
1007 || TYPE_ATABLE_DECL (DECL_OWNER (table)) != table)
1010 atable_methods = TYPE_ATABLE_METHODS (DECL_OWNER (table));
1011 index = TREE_INT_CST_LOW (TREE_OPERAND (method, 1));
1013 /* FIXME: Replace this for loop with a hash table lookup. */
1014 for (element = atable_methods; element; element = TREE_CHAIN (element))
1018 tree purpose = TREE_PURPOSE (element);
1019 if (TREE_CODE (purpose) == FUNCTION_DECL
1020 && ! DECL_EXTERNAL (purpose))
1032 /* Clear the binding stack. */
1034 java_clear_binding_stack (void)
1036 while (!global_bindings_p ())
1040 #include "gt-java-lang.h"