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
186 #undef LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN
187 #define LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN java_dump_tree
189 #undef LANG_HOOKS_GIMPLIFY_EXPR
190 #define LANG_HOOKS_GIMPLIFY_EXPR java_gimplify_expr
192 #undef LANG_HOOKS_TREE_INLINING_WALK_SUBTREES
193 #define LANG_HOOKS_TREE_INLINING_WALK_SUBTREES java_tree_inlining_walk_subtrees
195 #undef LANG_HOOKS_DECL_OK_FOR_SIBCALL
196 #define LANG_HOOKS_DECL_OK_FOR_SIBCALL java_decl_ok_for_sibcall
198 #undef LANG_HOOKS_GET_CALLEE_FNDECL
199 #define LANG_HOOKS_GET_CALLEE_FNDECL java_get_callee_fndecl
201 #undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION
202 #define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION java_expand_body
204 #undef LANG_HOOKS_CLEAR_BINDING_STACK
205 #define LANG_HOOKS_CLEAR_BINDING_STACK java_clear_binding_stack
207 #undef LANG_HOOKS_SET_DECL_ASSEMBLER_NAME
208 #define LANG_HOOKS_SET_DECL_ASSEMBLER_NAME java_mangle_decl
210 #undef LANG_HOOKS_ATTRIBUTE_TABLE
211 #define LANG_HOOKS_ATTRIBUTE_TABLE java_attribute_table
213 /* Each front end provides its own. */
214 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
217 * process java-specific compiler command-line options
218 * return 0, but do not complain if the option is not recognized.
221 java_handle_option (size_t scode, const char *arg, int value)
223 enum opt_code code = (enum opt_code) scode;
228 jcf_path_include_arg (arg);
232 jcf_dependency_init (1);
233 dependency_tracking |= DEPEND_ENABLE;
237 jcf_dependency_init (1);
238 dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
242 jcf_dependency_set_dep_file (arg);
243 dependency_tracking |= DEPEND_FILE_ALREADY_SET;
247 jcf_dependency_init (0);
248 dependency_tracking |= DEPEND_ENABLE;
252 jcf_dependency_init (0);
253 dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
257 jcf_dependency_print_dummies ();
261 jcf_dependency_set_target (arg);
262 dependency_tracking |= DEPEND_TARGET_SET;
267 /* When -Wall given, enable -Wunused. We do this because the C
268 compiler does it, and people expect it. */
272 case OPT_fenable_assertions_:
273 add_enable_assert (arg, value);
276 case OPT_fenable_assertions:
277 add_enable_assert ("", value);
280 case OPT_fdisable_assertions_:
281 add_enable_assert (arg, !value);
284 case OPT_fdisable_assertions:
285 add_enable_assert ("", !value);
288 case OPT_fassume_compiled_:
289 add_assume_compiled (arg, !value);
292 case OPT_fassume_compiled:
293 add_assume_compiled ("", !value);
296 case OPT_fbootclasspath_:
297 jcf_path_bootclasspath_arg (arg);
300 case OPT_faux_classpath:
301 case OPT_fclasspath_:
302 case OPT_fCLASSPATH_:
303 jcf_path_classpath_arg (arg);
306 case OPT_fcompile_resource_:
311 if (!dump_switch_p (arg))
320 jcf_path_extdirs_arg (arg);
323 case OPT_foutput_class_dir_:
324 /* FIXME: remove; this is handled by ecj1 now. */
331 case OPT_fsource_filename_:
332 java_read_sourcefilenames (arg);
336 if (cl_options[code].flags & CL_Java)
344 /* Global open file. */
350 /* FIXME: Indirect dispatch isn't yet compatible with static class
351 init optimization. */
352 if (flag_indirect_dispatch)
353 always_initialize_class_p = true;
355 if (!flag_indirect_dispatch)
356 flag_indirect_classes = false;
358 jcf_path_seal (v_flag);
360 java_init_decl_processing ();
362 using_eh_for_cleanups ();
370 jcf_dependency_write ();
373 /* Buffer used by lang_printable_name. */
374 static char *decl_buf = NULL;
376 /* Allocated size of decl_buf. */
377 static int decl_buflen = 0;
379 /* Length of used part of decl_buf; position for next character. */
380 static int decl_bufpos = 0;
382 /* Append the string STR to decl_buf.
383 It length is given by LEN; -1 means the string is nul-terminated. */
386 put_decl_string (const char *str, int len)
390 if (decl_bufpos + len >= decl_buflen)
392 if (decl_buf == NULL)
394 decl_buflen = len + 100;
395 decl_buf = XNEWVEC (char, decl_buflen);
400 decl_buf = xrealloc (decl_buf, decl_buflen);
403 strcpy (decl_buf + decl_bufpos, str);
407 /* Append to decl_buf a printable name for NODE. */
410 put_decl_node (tree node)
413 if (TREE_CODE (node) == POINTER_TYPE)
415 node = TREE_TYPE (node);
418 if (DECL_P (node) && DECL_NAME (node) != NULL_TREE)
420 if (TREE_CODE (node) == FUNCTION_DECL)
422 /* We want to print the type the DECL belongs to. We don't do
423 that when we handle constructors. */
424 if (! DECL_CONSTRUCTOR_P (node)
425 && ! DECL_ARTIFICIAL (node) && DECL_CONTEXT (node))
427 put_decl_node (TYPE_NAME (DECL_CONTEXT (node)));
428 put_decl_string (".", 1);
430 if (! DECL_CONSTRUCTOR_P (node))
431 put_decl_node (DECL_NAME (node));
432 if (TREE_TYPE (node) != NULL_TREE)
435 tree args = TYPE_ARG_TYPES (TREE_TYPE (node));
436 if (TREE_CODE (TREE_TYPE (node)) == METHOD_TYPE)
437 args = TREE_CHAIN (args);
438 put_decl_string ("(", 1);
439 for ( ; args != end_params_node; args = TREE_CHAIN (args), i++)
442 put_decl_string (",", 1);
443 put_decl_node (TREE_VALUE (args));
445 put_decl_string (")", 1);
449 put_decl_node (DECL_NAME (node));
451 else if (TYPE_P (node) && TYPE_NAME (node) != NULL_TREE)
453 if (TREE_CODE (node) == RECORD_TYPE && TYPE_ARRAY_P (node))
455 put_decl_node (TYPE_ARRAY_ELEMENT (node));
456 put_decl_string("[]", 2);
458 else if (node == promoted_byte_type_node)
459 put_decl_string ("byte", 4);
460 else if (node == promoted_short_type_node)
461 put_decl_string ("short", 5);
462 else if (node == promoted_char_type_node)
463 put_decl_string ("char", 4);
464 else if (node == promoted_boolean_type_node)
465 put_decl_string ("boolean", 7);
466 else if (node == void_type_node && was_pointer)
467 put_decl_string ("null", 4);
469 put_decl_node (TYPE_NAME (node));
471 else if (TREE_CODE (node) == IDENTIFIER_NODE)
472 put_decl_string (IDENTIFIER_POINTER (node), IDENTIFIER_LENGTH (node));
474 put_decl_string ("<unknown>", -1);
477 /* Return a user-friendly name for DECL.
478 The resulting string is only valid until the next call.
479 The value of the hook decl_printable_name is this function,
480 which is also called directly by java_print_error_function. */
483 lang_printable_name (tree decl, int v)
486 if (v == 0 && TREE_CODE (decl) == FUNCTION_DECL)
487 put_decl_node (DECL_NAME (decl));
489 put_decl_node (decl);
490 put_decl_string ("", 1);
494 /* Print on stderr the current class and method context. This function
495 is the value of the hook print_error_function. */
497 static GTY(()) tree last_error_function_context;
498 static GTY(()) tree last_error_function;
500 java_print_error_function (diagnostic_context *context ATTRIBUTE_UNUSED,
503 /* Don't print error messages with bogus function prototypes. */
504 if (inhibit_error_function_printing)
507 if (current_function_decl != NULL
508 && DECL_CONTEXT (current_function_decl) != last_error_function_context)
511 fprintf (stderr, "%s: ", file);
513 last_error_function_context = DECL_CONTEXT (current_function_decl);
514 fprintf (stderr, "In class '%s':\n",
515 lang_printable_name (last_error_function_context, 0));
517 if (last_error_function != current_function_decl)
520 fprintf (stderr, "%s: ", file);
522 if (current_function_decl == NULL)
523 fprintf (stderr, "At top level:\n");
526 const char *name = lang_printable_name (current_function_decl, 2);
527 fprintf (stderr, "In %s '%s':\n",
528 (DECL_CONSTRUCTOR_P (current_function_decl) ? "constructor"
533 last_error_function = current_function_decl;
538 /* Called to install the PRINT_ERROR_FUNCTION hook differently
539 according to LEVEL. LEVEL is 1 during early parsing, when function
540 prototypes aren't fully resolved. java_print_error_function is set
541 so it doesn't print incomplete function prototypes. When LEVEL is
542 2, function prototypes are fully resolved and can be printed when
546 lang_init_source (int level)
548 inhibit_error_function_printing = (level == 1);
552 java_init_options (unsigned int argc ATTRIBUTE_UNUSED,
553 const char **argv ATTRIBUTE_UNUSED)
555 flag_bounds_check = 1;
557 flag_non_call_exceptions = 1;
559 /* In Java floating point operations never trap. */
560 flag_trapping_math = 0;
562 /* In Java arithmetic overflow always wraps around. */
565 /* Java requires left-to-right evaluation of subexpressions. */
566 flag_evaluation_order = 1;
568 /* Unit at a time is disabled for Java because it is considered
570 no_unit_at_a_time_default = 1;
577 /* Post-switch processing. */
579 java_post_options (const char **pfilename)
581 const char *filename = *pfilename;
583 /* Use tree inlining. */
586 if (flag_inline_functions)
587 flag_inline_trees = 2;
589 /* An absolute requirement: if we're not using indirect dispatch, we
590 must always verify everything. */
591 if (! flag_indirect_dispatch)
592 flag_verify_invocations = true;
594 if (flag_reduced_reflection)
596 if (flag_indirect_dispatch)
597 error ("-findirect-dispatch is incompatible "
598 "with -freduced-reflection");
600 error ("-fjni is incompatible with -freduced-reflection");
603 /* Open input file. */
605 if (filename == 0 || !strcmp (filename, "-"))
610 if (dependency_tracking)
611 error ("can't do dependency tracking with input from stdin");
615 if (dependency_tracking)
619 /* If the target is set and the output filename is set, then
620 there's no processing to do here. Otherwise we must
621 compute one or the other. */
622 if (! ((dependency_tracking & DEPEND_TARGET_SET)
623 && (dependency_tracking & DEPEND_FILE_ALREADY_SET)))
625 dot = strrchr (filename, '.');
627 error ("couldn't determine target name for dependency tracking");
630 char *buf = XNEWVEC (char, dot - filename +
631 3 + sizeof (TARGET_OBJECT_SUFFIX));
632 strncpy (buf, filename, dot - filename);
634 /* If emitting class files, we might have multiple
635 targets. The class generation code takes care of
636 registering them. Otherwise we compute the
638 if ((dependency_tracking & DEPEND_TARGET_SET))
642 strcpy (buf + (dot - filename), TARGET_OBJECT_SUFFIX);
643 jcf_dependency_set_target (buf);
646 if ((dependency_tracking & DEPEND_FILE_ALREADY_SET))
648 else if ((dependency_tracking & DEPEND_SET_FILE))
650 strcpy (buf + (dot - filename), ".d");
651 jcf_dependency_set_dep_file (buf);
654 jcf_dependency_set_dep_file ("-");
661 #ifdef USE_MAPPED_LOCATION
662 linemap_add (&line_table, LC_ENTER, false, filename, 0);
663 linemap_add (&line_table, LC_RENAME, false, "<built-in>", 0);
666 /* Initialize the compiler back end. */
670 /* Return either DECL or its known constant value (if it has one). */
673 decl_constant_value (tree decl)
675 if (/* Don't change a variable array bound or initial value to a constant
676 in a place where a variable is invalid. */
677 current_function_decl != 0
678 && ! TREE_THIS_VOLATILE (decl)
679 && TREE_READONLY (decl)
680 && DECL_INITIAL (decl) != 0
681 && TREE_CODE (DECL_INITIAL (decl)) != ERROR_MARK
682 /* This is invalid if initial value is not constant.
683 If it has either a function call, a memory reference,
684 or a variable, then re-evaluating it could give different results. */
685 && TREE_CONSTANT (DECL_INITIAL (decl))
686 /* Check for cases where this is sub-optimal, even though valid. */
687 && TREE_CODE (DECL_INITIAL (decl)) != CONSTRUCTOR)
688 return DECL_INITIAL (decl);
692 /* Walk the language specific tree nodes during inlining. */
695 java_tree_inlining_walk_subtrees (tree *tp ATTRIBUTE_UNUSED,
696 int *subtrees ATTRIBUTE_UNUSED,
697 walk_tree_fn func ATTRIBUTE_UNUSED,
698 void *data ATTRIBUTE_UNUSED,
699 struct pointer_set_t *pset ATTRIBUTE_UNUSED)
704 #define WALK_SUBTREE(NODE) \
707 result = walk_tree (&(NODE), func, data, pset); \
717 code = TREE_CODE (t);
721 WALK_SUBTREE (BLOCK_EXPR_BODY (t));
731 /* Every call to a static constructor has an associated boolean
732 variable which is in the outermost scope of the calling method.
733 This variable is used to avoid multiple calls to the static
734 constructor for each class.
736 It looks something like this:
740 boolean dummy = OtherClass.is_initialized;
745 OtherClass.initialize();
747 ... use OtherClass.data ...
750 Each of these boolean variables has an entry in the
751 DECL_FUNCTION_INIT_TEST_TABLE of a method. When inlining a method
752 we must merge the DECL_FUNCTION_INIT_TEST_TABLE from the function
753 being inlined and create the boolean variables in the outermost
754 scope of the method being inlined into. */
756 /* Create a mapping from a boolean variable in a method being inlined
757 to one in the scope of the method being inlined into. */
760 merge_init_test_initialization (void **entry, void *x)
762 struct treetreehash_entry *ite = (struct treetreehash_entry *) *entry;
763 splay_tree decl_map = (splay_tree)x;
765 tree *init_test_decl;
767 /* See if we have remapped this declaration. If we haven't there's
768 a bug in the inliner. */
769 n = splay_tree_lookup (decl_map, (splay_tree_key) ite->value);
772 /* Create a new entry for the class and its remapped boolean
773 variable. If we already have a mapping for this class we've
774 already initialized it, so don't overwrite the value. */
775 init_test_decl = java_treetreehash_new
776 (DECL_FUNCTION_INIT_TEST_TABLE (current_function_decl), ite->key);
777 if (!*init_test_decl)
778 *init_test_decl = (tree)n->value;
780 /* This fixes a weird case.
782 The front end assumes that once we have called a method that
783 initializes some class, we can assume the class is initialized. It
784 does this by setting the DECL_INITIAL of the init_test_decl for that
785 class, and no initializations are emitted for that class.
787 However, what if the method that is supposed to do the initialization
788 is itself inlined in the caller? When expanding the called method
789 we'll assume that the class initialization has already been done,
790 because the DECL_INITIAL of the init_test_decl is set.
792 To fix this we remove the DECL_INITIAL (in the caller scope) of all
793 the init_test_decls corresponding to classes initialized by the
794 inlined method. This makes the caller no longer assume that the
795 method being inlined does any class initializations. */
796 DECL_INITIAL (*init_test_decl) = NULL;
801 /* Merge the DECL_FUNCTION_INIT_TEST_TABLE from the function we're
805 java_inlining_merge_static_initializers (tree fn, void *decl_map)
808 (DECL_FUNCTION_INIT_TEST_TABLE (fn),
809 merge_init_test_initialization, decl_map);
812 /* Lookup a DECL_FUNCTION_INIT_TEST_TABLE entry in the method we're
813 inlining into. If we already have a corresponding entry in that
814 class we don't need to create another one, so we create a mapping
815 from the variable in the inlined class to the corresponding
819 inline_init_test_initialization (void **entry, void *x)
821 struct treetreehash_entry *ite = (struct treetreehash_entry *) *entry;
822 splay_tree decl_map = (splay_tree)x;
824 tree h = java_treetreehash_find
825 (DECL_FUNCTION_INIT_TEST_TABLE (current_function_decl), ite->key);
828 splay_tree_insert (decl_map,
829 (splay_tree_key) ite->value,
830 (splay_tree_value) h);
834 /* Look up the boolean variables in the DECL_FUNCTION_INIT_TEST_TABLE
835 of a method being inlined. For each hone, if we already have a
836 variable associated with the same class in the method being inlined
837 into, create a new mapping for it. */
840 java_inlining_map_static_initializers (tree fn, void *decl_map)
843 (DECL_FUNCTION_INIT_TEST_TABLE (fn),
844 inline_init_test_initialization, decl_map);
847 /* Avoid voluminous output for deep recursion of compound exprs. */
850 dump_compound_expr (dump_info_p di, tree t)
856 switch (TREE_CODE (TREE_OPERAND (t, i)))
859 dump_compound_expr (di, TREE_OPERAND (t, i));
863 dump_child ("expr", TREE_OPERAND (t, i));
869 java_dump_tree (void *dump_info, tree t)
872 dump_info_p di = (dump_info_p) dump_info;
874 /* Figure out what kind of node this is. */
875 code = TREE_CODE (t);
880 dump_child ("args", DECL_ARGUMENTS (t));
881 if (DECL_EXTERNAL (t))
882 dump_string (di, "undefined");
884 dump_string (di, "extern");
886 dump_string (di, "static");
887 if (DECL_LANG_SPECIFIC (t))
888 dump_child ("body", DECL_FUNCTION_BODY (t));
889 if (DECL_LANG_SPECIFIC (t) && !dump_flag (di, TDF_SLIM, t))
890 dump_child ("inline body", DECL_SAVED_TREE (t));
894 dump_child ("expr", TREE_OPERAND (t, 0));
898 dump_child ("goto", TREE_OPERAND (t, 0));
902 dump_child ("label", TREE_OPERAND (t, 0));
906 if (BLOCK_EXPR_BODY (t))
908 tree local = BLOCK_VARS (t);
911 tree next = TREE_CHAIN (local);
912 dump_child ("var", local);
917 tree block = BLOCK_EXPR_BODY (t);
918 dump_child ("body", block);
919 block = TREE_CHAIN (block);
925 if (!dump_flag (di, TDF_SLIM, t))
927 dump_compound_expr (di, t);
936 /* Java calls can't, in general, be sibcalls because we need an
937 accurate stack trace in order to guarantee correct operation of
938 methods such as Class.forName(String) and
939 SecurityManager.getClassContext(). */
942 java_decl_ok_for_sibcall (tree decl)
944 return (decl != NULL && DECL_CONTEXT (decl) == output_class
945 && DECL_INLINE (decl));
948 /* Given a call_expr, try to figure out what its target might be. In
949 the case of an indirection via the atable, search for the decl. If
950 the decl is external, we return NULL. If we don't, the optimizer
951 will replace the indirection with a direct call, which undoes the
952 purpose of the atable indirection. */
954 java_get_callee_fndecl (tree call_expr)
956 tree method, table, element, atable_methods;
960 /* FIXME: This is disabled because we end up passing calls through
961 the PLT, and we do NOT want to do that. */
964 if (TREE_CODE (call_expr) != CALL_EXPR)
966 method = CALL_EXPR_FN (call_expr);
968 if (TREE_CODE (method) != ARRAY_REF)
970 table = TREE_OPERAND (method, 0);
971 if (! DECL_LANG_SPECIFIC(table)
972 || !DECL_OWNER (table)
973 || TYPE_ATABLE_DECL (DECL_OWNER (table)) != table)
976 atable_methods = TYPE_ATABLE_METHODS (DECL_OWNER (table));
977 index = TREE_INT_CST_LOW (TREE_OPERAND (method, 1));
979 /* FIXME: Replace this for loop with a hash table lookup. */
980 for (element = atable_methods; element; element = TREE_CHAIN (element))
984 tree purpose = TREE_PURPOSE (element);
985 if (TREE_CODE (purpose) == FUNCTION_DECL
986 && ! DECL_EXTERNAL (purpose))
998 /* Clear the binding stack. */
1000 java_clear_binding_stack (void)
1002 while (!global_bindings_p ())
1006 #include "gt-java-lang.h"