1 /* Java(TM) language-specific utility routines.
2 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
3 2005, 2006, 2007 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, 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, 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_dump_tree (void *, tree);
64 static void dump_compound_expr (dump_info_p, tree);
65 static bool java_decl_ok_for_sibcall (tree);
66 static tree java_get_callee_fndecl (tree);
67 static void java_clear_binding_stack (void);
69 #ifndef TARGET_OBJECT_SUFFIX
70 # define TARGET_OBJECT_SUFFIX ".o"
73 /* Table indexed by tree code giving a string containing a character
74 classifying the tree code. Possibilities are
75 t, d, s, c, r, <, 1 and 2. See java/java-tree.def for details. */
77 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
79 const enum tree_code_class tree_code_type[] = {
82 #include "java-tree.def"
86 /* Table indexed by tree code giving number of expression
87 operands beyond the fixed part of the node structure.
88 Not used for types or decls. */
90 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
92 const unsigned char tree_code_length[] = {
95 #include "java-tree.def"
99 /* Names of tree components.
100 Used for printing out the tree and error messages. */
101 #define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
103 const char *const tree_code_name[] = {
106 #include "java-tree.def"
110 /* Table of machine-independent attributes. */
111 const struct attribute_spec java_attribute_table[] =
113 { "nonnull", 0, -1, false, true, true,
115 { NULL, 0, 0, false, false, false, NULL }
118 /* Used to avoid printing error messages with bogus function
119 prototypes. Starts out false. */
120 static bool inhibit_error_function_printing;
122 const char *resource_name;
124 /* When nonzero, -Wall was turned on. */
127 /* When nonzero, report use of deprecated classes, methods, or fields. */
128 int flag_deprecated = 1;
130 /* When zero, don't optimize static class initialization. This flag shouldn't
131 be tested alone, use STATIC_CLASS_INITIALIZATION_OPTIMIZATION_P instead. */
132 /* FIXME: Make this work with gimplify. */
133 /* int flag_optimize_sci = 0; */
135 /* Don't attempt to verify invocations. */
136 int flag_verify_invocations = 0;
138 /* When nonzero, print extra version information. */
139 static int v_flag = 0;
143 /* Variable controlling how dependency tracking is enabled in
145 static int dependency_tracking = 0;
147 /* Flag values for DEPENDENCY_TRACKING. */
148 #define DEPEND_SET_FILE 1
149 #define DEPEND_ENABLE 2
150 #define DEPEND_TARGET_SET 4
151 #define DEPEND_FILE_ALREADY_SET 8
153 struct language_function GTY(())
158 #undef LANG_HOOKS_NAME
159 #define LANG_HOOKS_NAME "GNU Java"
160 #undef LANG_HOOKS_INIT
161 #define LANG_HOOKS_INIT java_init
162 #undef LANG_HOOKS_FINISH
163 #define LANG_HOOKS_FINISH java_finish
164 #undef LANG_HOOKS_INIT_OPTIONS
165 #define LANG_HOOKS_INIT_OPTIONS java_init_options
166 #undef LANG_HOOKS_HANDLE_OPTION
167 #define LANG_HOOKS_HANDLE_OPTION java_handle_option
168 #undef LANG_HOOKS_POST_OPTIONS
169 #define LANG_HOOKS_POST_OPTIONS java_post_options
170 #undef LANG_HOOKS_PARSE_FILE
171 #define LANG_HOOKS_PARSE_FILE java_parse_file
172 #undef LANG_HOOKS_MARK_ADDRESSABLE
173 #define LANG_HOOKS_MARK_ADDRESSABLE java_mark_addressable
174 #undef LANG_HOOKS_DUP_LANG_SPECIFIC_DECL
175 #define LANG_HOOKS_DUP_LANG_SPECIFIC_DECL java_dup_lang_specific_decl
176 #undef LANG_HOOKS_DECL_PRINTABLE_NAME
177 #define LANG_HOOKS_DECL_PRINTABLE_NAME lang_printable_name
178 #undef LANG_HOOKS_PRINT_ERROR_FUNCTION
179 #define LANG_HOOKS_PRINT_ERROR_FUNCTION java_print_error_function
181 #undef LANG_HOOKS_TYPE_FOR_MODE
182 #define LANG_HOOKS_TYPE_FOR_MODE java_type_for_mode
183 #undef LANG_HOOKS_TYPE_FOR_SIZE
184 #define LANG_HOOKS_TYPE_FOR_SIZE java_type_for_size
185 #undef LANG_HOOKS_SIGNED_TYPE
186 #define LANG_HOOKS_SIGNED_TYPE java_signed_type
187 #undef LANG_HOOKS_UNSIGNED_TYPE
188 #define LANG_HOOKS_UNSIGNED_TYPE java_unsigned_type
190 #undef LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN
191 #define LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN java_dump_tree
193 #undef LANG_HOOKS_GIMPLIFY_EXPR
194 #define LANG_HOOKS_GIMPLIFY_EXPR java_gimplify_expr
196 #undef LANG_HOOKS_TREE_INLINING_WALK_SUBTREES
197 #define LANG_HOOKS_TREE_INLINING_WALK_SUBTREES java_tree_inlining_walk_subtrees
199 #undef LANG_HOOKS_DECL_OK_FOR_SIBCALL
200 #define LANG_HOOKS_DECL_OK_FOR_SIBCALL java_decl_ok_for_sibcall
202 #undef LANG_HOOKS_GET_CALLEE_FNDECL
203 #define LANG_HOOKS_GET_CALLEE_FNDECL java_get_callee_fndecl
205 #undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION
206 #define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION java_expand_body
208 #undef LANG_HOOKS_CLEAR_BINDING_STACK
209 #define LANG_HOOKS_CLEAR_BINDING_STACK java_clear_binding_stack
211 #undef LANG_HOOKS_SET_DECL_ASSEMBLER_NAME
212 #define LANG_HOOKS_SET_DECL_ASSEMBLER_NAME java_mangle_decl
214 #undef LANG_HOOKS_ATTRIBUTE_TABLE
215 #define LANG_HOOKS_ATTRIBUTE_TABLE java_attribute_table
217 /* Each front end provides its own. */
218 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
221 * process java-specific compiler command-line options
222 * return 0, but do not complain if the option is not recognized.
225 java_handle_option (size_t scode, const char *arg, int value)
227 enum opt_code code = (enum opt_code) scode;
232 jcf_path_include_arg (arg);
236 jcf_dependency_init (1);
237 dependency_tracking |= DEPEND_ENABLE;
241 jcf_dependency_init (1);
242 dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
246 jcf_dependency_set_dep_file (arg);
247 dependency_tracking |= DEPEND_FILE_ALREADY_SET;
251 jcf_dependency_init (0);
252 dependency_tracking |= DEPEND_ENABLE;
256 jcf_dependency_init (0);
257 dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
261 jcf_dependency_print_dummies ();
265 jcf_dependency_set_target (arg);
266 dependency_tracking |= DEPEND_TARGET_SET;
271 /* When -Wall given, enable -Wunused. We do this because the C
272 compiler does it, and people expect it. */
276 case OPT_fenable_assertions_:
277 add_enable_assert (arg, value);
280 case OPT_fenable_assertions:
281 add_enable_assert ("", value);
284 case OPT_fdisable_assertions_:
285 add_enable_assert (arg, !value);
288 case OPT_fdisable_assertions:
289 add_enable_assert ("", !value);
292 case OPT_fassume_compiled_:
293 add_assume_compiled (arg, !value);
296 case OPT_fassume_compiled:
297 add_assume_compiled ("", !value);
300 case OPT_fbootclasspath_:
301 jcf_path_bootclasspath_arg (arg);
304 case OPT_faux_classpath:
305 case OPT_fclasspath_:
306 case OPT_fCLASSPATH_:
307 jcf_path_classpath_arg (arg);
310 case OPT_fcompile_resource_:
315 if (!dump_switch_p (arg))
324 jcf_path_extdirs_arg (arg);
327 case OPT_foutput_class_dir_:
328 /* FIXME: remove; this is handled by ecj1 now. */
335 case OPT_fsource_filename_:
336 java_read_sourcefilenames (arg);
340 if (cl_options[code].flags & CL_Java)
348 /* Global open file. */
354 /* FIXME: Indirect dispatch isn't yet compatible with static class
355 init optimization. */
356 if (flag_indirect_dispatch)
357 always_initialize_class_p = true;
359 if (!flag_indirect_dispatch)
360 flag_indirect_classes = false;
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 = XNEWVEC (char, 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;
579 /* Unit at a time is disabled for Java because it is considered
581 no_unit_at_a_time_default = 1;
588 /* Post-switch processing. */
590 java_post_options (const char **pfilename)
592 const char *filename = *pfilename;
594 /* Use tree inlining. */
597 if (flag_inline_functions)
598 flag_inline_trees = 2;
600 /* An absolute requirement: if we're not using indirect dispatch, we
601 must always verify everything. */
602 if (! flag_indirect_dispatch)
603 flag_verify_invocations = true;
605 if (flag_reduced_reflection)
607 if (flag_indirect_dispatch)
608 error ("-findirect-dispatch is incompatible "
609 "with -freduced-reflection");
611 error ("-fjni is incompatible with -freduced-reflection");
614 /* Open input file. */
616 if (filename == 0 || !strcmp (filename, "-"))
621 if (dependency_tracking)
622 error ("can't do dependency tracking with input from stdin");
626 if (dependency_tracking)
630 /* If the target is set and the output filename is set, then
631 there's no processing to do here. Otherwise we must
632 compute one or the other. */
633 if (! ((dependency_tracking & DEPEND_TARGET_SET)
634 && (dependency_tracking & DEPEND_FILE_ALREADY_SET)))
636 dot = strrchr (filename, '.');
638 error ("couldn't determine target name for dependency tracking");
641 char *buf = XNEWVEC (char, dot - filename +
642 3 + sizeof (TARGET_OBJECT_SUFFIX));
643 strncpy (buf, filename, dot - filename);
645 /* If emitting class files, we might have multiple
646 targets. The class generation code takes care of
647 registering them. Otherwise we compute the
649 if ((dependency_tracking & DEPEND_TARGET_SET))
653 strcpy (buf + (dot - filename), TARGET_OBJECT_SUFFIX);
654 jcf_dependency_set_target (buf);
657 if ((dependency_tracking & DEPEND_FILE_ALREADY_SET))
659 else if ((dependency_tracking & DEPEND_SET_FILE))
661 strcpy (buf + (dot - filename), ".d");
662 jcf_dependency_set_dep_file (buf);
665 jcf_dependency_set_dep_file ("-");
672 #ifdef USE_MAPPED_LOCATION
673 linemap_add (&line_table, LC_ENTER, false, filename, 0);
674 linemap_add (&line_table, LC_RENAME, false, "<built-in>", 0);
677 /* Initialize the compiler back end. */
681 /* Return either DECL or its known constant value (if it has one). */
684 decl_constant_value (tree decl)
686 if (/* Don't change a variable array bound or initial value to a constant
687 in a place where a variable is invalid. */
688 current_function_decl != 0
689 && ! TREE_THIS_VOLATILE (decl)
690 && TREE_READONLY (decl)
691 && DECL_INITIAL (decl) != 0
692 && TREE_CODE (DECL_INITIAL (decl)) != ERROR_MARK
693 /* This is invalid if initial value is not constant.
694 If it has either a function call, a memory reference,
695 or a variable, then re-evaluating it could give different results. */
696 && TREE_CONSTANT (DECL_INITIAL (decl))
697 /* Check for cases where this is sub-optimal, even though valid. */
698 && TREE_CODE (DECL_INITIAL (decl)) != CONSTRUCTOR)
699 return DECL_INITIAL (decl);
703 /* Walk the language specific tree nodes during inlining. */
706 java_tree_inlining_walk_subtrees (tree *tp ATTRIBUTE_UNUSED,
707 int *subtrees ATTRIBUTE_UNUSED,
708 walk_tree_fn func ATTRIBUTE_UNUSED,
709 void *data ATTRIBUTE_UNUSED,
710 struct pointer_set_t *pset ATTRIBUTE_UNUSED)
715 #define WALK_SUBTREE(NODE) \
718 result = walk_tree (&(NODE), func, data, pset); \
728 code = TREE_CODE (t);
732 WALK_SUBTREE (BLOCK_EXPR_BODY (t));
735 case EXIT_BLOCK_EXPR:
746 /* Every call to a static constructor has an associated boolean
747 variable which is in the outermost scope of the calling method.
748 This variable is used to avoid multiple calls to the static
749 constructor for each class.
751 It looks something like this:
755 boolean dummy = OtherClass.is_initialized;
760 OtherClass.initialize();
762 ... use OtherClass.data ...
765 Each of these boolean variables has an entry in the
766 DECL_FUNCTION_INIT_TEST_TABLE of a method. When inlining a method
767 we must merge the DECL_FUNCTION_INIT_TEST_TABLE from the function
768 being inlined and create the boolean variables in the outermost
769 scope of the method being inlined into. */
771 /* Create a mapping from a boolean variable in a method being inlined
772 to one in the scope of the method being inlined into. */
775 merge_init_test_initialization (void **entry, void *x)
777 struct treetreehash_entry *ite = (struct treetreehash_entry *) *entry;
778 splay_tree decl_map = (splay_tree)x;
780 tree *init_test_decl;
782 /* See if we have remapped this declaration. If we haven't there's
783 a bug in the inliner. */
784 n = splay_tree_lookup (decl_map, (splay_tree_key) ite->value);
787 /* Create a new entry for the class and its remapped boolean
788 variable. If we already have a mapping for this class we've
789 already initialized it, so don't overwrite the value. */
790 init_test_decl = java_treetreehash_new
791 (DECL_FUNCTION_INIT_TEST_TABLE (current_function_decl), ite->key);
792 if (!*init_test_decl)
793 *init_test_decl = (tree)n->value;
795 /* This fixes a weird case.
797 The front end assumes that once we have called a method that
798 initializes some class, we can assume the class is initialized. It
799 does this by setting the DECL_INITIAL of the init_test_decl for that
800 class, and no initializations are emitted for that class.
802 However, what if the method that is supposed to do the initialization
803 is itself inlined in the caller? When expanding the called method
804 we'll assume that the class initialization has already been done,
805 because the DECL_INITIAL of the init_test_decl is set.
807 To fix this we remove the DECL_INITIAL (in the caller scope) of all
808 the init_test_decls corresponding to classes initialized by the
809 inlined method. This makes the caller no longer assume that the
810 method being inlined does any class initializations. */
811 DECL_INITIAL (*init_test_decl) = NULL;
816 /* Merge the DECL_FUNCTION_INIT_TEST_TABLE from the function we're
820 java_inlining_merge_static_initializers (tree fn, void *decl_map)
823 (DECL_FUNCTION_INIT_TEST_TABLE (fn),
824 merge_init_test_initialization, decl_map);
827 /* Lookup a DECL_FUNCTION_INIT_TEST_TABLE entry in the method we're
828 inlining into. If we already have a corresponding entry in that
829 class we don't need to create another one, so we create a mapping
830 from the variable in the inlined class to the corresponding
834 inline_init_test_initialization (void **entry, void *x)
836 struct treetreehash_entry *ite = (struct treetreehash_entry *) *entry;
837 splay_tree decl_map = (splay_tree)x;
839 tree h = java_treetreehash_find
840 (DECL_FUNCTION_INIT_TEST_TABLE (current_function_decl), ite->key);
843 splay_tree_insert (decl_map,
844 (splay_tree_key) ite->value,
845 (splay_tree_value) h);
849 /* Look up the boolean variables in the DECL_FUNCTION_INIT_TEST_TABLE
850 of a method being inlined. For each hone, if we already have a
851 variable associated with the same class in the method being inlined
852 into, create a new mapping for it. */
855 java_inlining_map_static_initializers (tree fn, void *decl_map)
858 (DECL_FUNCTION_INIT_TEST_TABLE (fn),
859 inline_init_test_initialization, decl_map);
862 /* Avoid voluminous output for deep recursion of compound exprs. */
865 dump_compound_expr (dump_info_p di, tree t)
871 switch (TREE_CODE (TREE_OPERAND (t, i)))
874 dump_compound_expr (di, TREE_OPERAND (t, i));
878 dump_child ("expr", TREE_OPERAND (t, i));
884 java_dump_tree (void *dump_info, tree t)
887 dump_info_p di = (dump_info_p) dump_info;
889 /* Figure out what kind of node this is. */
890 code = TREE_CODE (t);
895 dump_child ("args", DECL_ARGUMENTS (t));
896 if (DECL_EXTERNAL (t))
897 dump_string (di, "undefined");
899 dump_string (di, "extern");
901 dump_string (di, "static");
902 if (DECL_LANG_SPECIFIC (t))
903 dump_child ("body", DECL_FUNCTION_BODY (t));
904 if (DECL_LANG_SPECIFIC (t) && !dump_flag (di, TDF_SLIM, t))
905 dump_child ("inline body", DECL_SAVED_TREE (t));
909 dump_child ("expr", TREE_OPERAND (t, 0));
913 dump_child ("goto", TREE_OPERAND (t, 0));
917 dump_child ("label", TREE_OPERAND (t, 0));
920 case LABELED_BLOCK_EXPR:
921 dump_child ("label", LABELED_BLOCK_LABEL (t));
922 dump_child ("block", LABELED_BLOCK_BODY (t));
925 case EXIT_BLOCK_EXPR:
926 dump_child ("block", EXIT_BLOCK_LABELED_BLOCK (t));
930 if (BLOCK_EXPR_BODY (t))
932 tree local = BLOCK_VARS (t);
935 tree next = TREE_CHAIN (local);
936 dump_child ("var", local);
941 tree block = BLOCK_EXPR_BODY (t);
942 dump_child ("body", block);
943 block = TREE_CHAIN (block);
949 if (!dump_flag (di, TDF_SLIM, t))
951 dump_compound_expr (di, t);
960 /* Java calls can't, in general, be sibcalls because we need an
961 accurate stack trace in order to guarantee correct operation of
962 methods such as Class.forName(String) and
963 SecurityManager.getClassContext(). */
966 java_decl_ok_for_sibcall (tree decl)
968 return (decl != NULL && DECL_CONTEXT (decl) == output_class
969 && DECL_INLINE (decl));
972 /* Given a call_expr, try to figure out what its target might be. In
973 the case of an indirection via the atable, search for the decl. If
974 the decl is external, we return NULL. If we don't, the optimizer
975 will replace the indirection with a direct call, which undoes the
976 purpose of the atable indirection. */
978 java_get_callee_fndecl (tree call_expr)
980 tree method, table, element, atable_methods;
984 /* FIXME: This is disabled because we end up passing calls through
985 the PLT, and we do NOT want to do that. */
988 if (TREE_CODE (call_expr) != CALL_EXPR)
990 method = CALL_EXPR_FN (call_expr);
992 if (TREE_CODE (method) != ARRAY_REF)
994 table = TREE_OPERAND (method, 0);
995 if (! DECL_LANG_SPECIFIC(table)
996 || !DECL_OWNER (table)
997 || TYPE_ATABLE_DECL (DECL_OWNER (table)) != table)
1000 atable_methods = TYPE_ATABLE_METHODS (DECL_OWNER (table));
1001 index = TREE_INT_CST_LOW (TREE_OPERAND (method, 1));
1003 /* FIXME: Replace this for loop with a hash table lookup. */
1004 for (element = atable_methods; element; element = TREE_CHAIN (element))
1008 tree purpose = TREE_PURPOSE (element);
1009 if (TREE_CODE (purpose) == FUNCTION_DECL
1010 && ! DECL_EXTERNAL (purpose))
1022 /* Clear the binding stack. */
1024 java_clear_binding_stack (void)
1026 while (!global_bindings_p ())
1030 #include "gt-java-lang.h"