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 3, 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 COPYING3. If not see
19 <http://www.gnu.org/licenses/>.
21 Java and all Java-based marks are trademarks or registered trademarks
22 of Sun Microsystems, Inc. in the United States and other countries.
23 The Free Software Foundation is independent of Sun Microsystems, Inc. */
25 /* Hacked by Per Bothner <bothner@cygnus.com> February 1996. */
29 #include "coretypes.h"
35 #include "java-tree.h"
38 #include "langhooks.h"
39 #include "langhooks-def.h"
42 #include "diagnostic.h"
43 #include "tree-inline.h"
44 #include "splay-tree.h"
45 #include "tree-dump.h"
49 static bool java_init (void);
50 static void java_finish (void);
51 static unsigned int java_init_options (unsigned int, const char **);
52 static bool java_post_options (const char **);
54 static int java_handle_option (size_t scode, const char *arg, int value);
55 static void put_decl_string (const char *, int);
56 static void put_decl_node (tree);
57 static void java_print_error_function (diagnostic_context *, const char *);
58 static tree java_tree_inlining_walk_subtrees (tree *, int *, walk_tree_fn,
59 void *, struct pointer_set_t *);
60 static int merge_init_test_initialization (void * *, void *);
61 static int inline_init_test_initialization (void * *, void *);
62 static bool java_dump_tree (void *, tree);
63 static void dump_compound_expr (dump_info_p, tree);
64 static bool java_decl_ok_for_sibcall (tree);
65 static tree java_get_callee_fndecl (const_tree);
66 static void java_clear_binding_stack (void);
68 #ifndef TARGET_OBJECT_SUFFIX
69 # define TARGET_OBJECT_SUFFIX ".o"
72 /* Table indexed by tree code giving a string containing a character
73 classifying the tree code. Possibilities are
74 t, d, s, c, r, <, 1 and 2. See java/java-tree.def for details. */
76 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
78 const enum tree_code_class tree_code_type[] = {
81 #include "java-tree.def"
85 /* Table indexed by tree code giving number of expression
86 operands beyond the fixed part of the node structure.
87 Not used for types or decls. */
89 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
91 const unsigned char tree_code_length[] = {
94 #include "java-tree.def"
98 /* Names of tree components.
99 Used for printing out the tree and error messages. */
100 #define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
102 const char *const tree_code_name[] = {
105 #include "java-tree.def"
109 /* Table of machine-independent attributes. */
110 const struct attribute_spec java_attribute_table[] =
112 { "nonnull", 0, -1, false, true, true,
114 { NULL, 0, 0, false, false, false, NULL }
117 /* Used to avoid printing error messages with bogus function
118 prototypes. Starts out false. */
119 static bool inhibit_error_function_printing;
121 const char *resource_name;
123 /* When nonzero, -Wall was turned on. */
126 /* When nonzero, report use of deprecated classes, methods, or fields. */
127 int flag_deprecated = 1;
129 /* When zero, don't optimize static class initialization. This flag shouldn't
130 be tested alone, use STATIC_CLASS_INITIALIZATION_OPTIMIZATION_P instead. */
131 /* FIXME: Make this work with gimplify. */
132 /* int flag_optimize_sci = 0; */
134 /* Don't attempt to verify invocations. */
135 int flag_verify_invocations = 0;
137 /* When nonzero, print extra version information. */
138 static int v_flag = 0;
142 /* Variable controlling how dependency tracking is enabled in
144 static int dependency_tracking = 0;
146 /* Flag values for DEPENDENCY_TRACKING. */
147 #define DEPEND_SET_FILE 1
148 #define DEPEND_ENABLE 2
149 #define DEPEND_TARGET_SET 4
150 #define DEPEND_FILE_ALREADY_SET 8
152 struct language_function GTY(())
157 #undef LANG_HOOKS_NAME
158 #define LANG_HOOKS_NAME "GNU Java"
159 #undef LANG_HOOKS_INIT
160 #define LANG_HOOKS_INIT java_init
161 #undef LANG_HOOKS_FINISH
162 #define LANG_HOOKS_FINISH java_finish
163 #undef LANG_HOOKS_INIT_OPTIONS
164 #define LANG_HOOKS_INIT_OPTIONS java_init_options
165 #undef LANG_HOOKS_HANDLE_OPTION
166 #define LANG_HOOKS_HANDLE_OPTION java_handle_option
167 #undef LANG_HOOKS_POST_OPTIONS
168 #define LANG_HOOKS_POST_OPTIONS java_post_options
169 #undef LANG_HOOKS_PARSE_FILE
170 #define LANG_HOOKS_PARSE_FILE java_parse_file
171 #undef LANG_HOOKS_MARK_ADDRESSABLE
172 #define LANG_HOOKS_MARK_ADDRESSABLE java_mark_addressable
173 #undef LANG_HOOKS_DUP_LANG_SPECIFIC_DECL
174 #define LANG_HOOKS_DUP_LANG_SPECIFIC_DECL java_dup_lang_specific_decl
175 #undef LANG_HOOKS_DECL_PRINTABLE_NAME
176 #define LANG_HOOKS_DECL_PRINTABLE_NAME lang_printable_name
177 #undef LANG_HOOKS_PRINT_ERROR_FUNCTION
178 #define LANG_HOOKS_PRINT_ERROR_FUNCTION java_print_error_function
180 #undef LANG_HOOKS_TYPE_FOR_MODE
181 #define LANG_HOOKS_TYPE_FOR_MODE java_type_for_mode
182 #undef LANG_HOOKS_TYPE_FOR_SIZE
183 #define LANG_HOOKS_TYPE_FOR_SIZE java_type_for_size
185 #undef LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN
186 #define LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN java_dump_tree
188 #undef LANG_HOOKS_GIMPLIFY_EXPR
189 #define LANG_HOOKS_GIMPLIFY_EXPR java_gimplify_expr
191 #undef LANG_HOOKS_TREE_INLINING_WALK_SUBTREES
192 #define LANG_HOOKS_TREE_INLINING_WALK_SUBTREES java_tree_inlining_walk_subtrees
194 #undef LANG_HOOKS_DECL_OK_FOR_SIBCALL
195 #define LANG_HOOKS_DECL_OK_FOR_SIBCALL java_decl_ok_for_sibcall
197 #undef LANG_HOOKS_GET_CALLEE_FNDECL
198 #define LANG_HOOKS_GET_CALLEE_FNDECL java_get_callee_fndecl
200 #undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION
201 #define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION java_expand_body
203 #undef LANG_HOOKS_CLEAR_BINDING_STACK
204 #define LANG_HOOKS_CLEAR_BINDING_STACK java_clear_binding_stack
206 #undef LANG_HOOKS_SET_DECL_ASSEMBLER_NAME
207 #define LANG_HOOKS_SET_DECL_ASSEMBLER_NAME java_mangle_decl
209 #undef LANG_HOOKS_ATTRIBUTE_TABLE
210 #define LANG_HOOKS_ATTRIBUTE_TABLE java_attribute_table
212 /* Each front end provides its own. */
213 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
216 * process java-specific compiler command-line options
217 * return 0, but do not complain if the option is not recognized.
220 java_handle_option (size_t scode, const char *arg, int value)
222 enum opt_code code = (enum opt_code) scode;
227 jcf_path_include_arg (arg);
231 jcf_dependency_init (1);
232 dependency_tracking |= DEPEND_ENABLE;
236 jcf_dependency_init (1);
237 dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
241 jcf_dependency_set_dep_file (arg);
242 dependency_tracking |= DEPEND_FILE_ALREADY_SET;
246 jcf_dependency_init (0);
247 dependency_tracking |= DEPEND_ENABLE;
251 jcf_dependency_init (0);
252 dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
256 jcf_dependency_print_dummies ();
260 jcf_dependency_set_target (arg);
261 dependency_tracking |= DEPEND_TARGET_SET;
266 /* When -Wall given, enable -Wunused. We do this because the C
267 compiler does it, and people expect it. */
271 case OPT_fenable_assertions_:
272 add_enable_assert (arg, value);
275 case OPT_fenable_assertions:
276 add_enable_assert ("", value);
279 case OPT_fdisable_assertions_:
280 add_enable_assert (arg, !value);
283 case OPT_fdisable_assertions:
284 add_enable_assert ("", !value);
287 case OPT_fassume_compiled_:
288 add_assume_compiled (arg, !value);
291 case OPT_fassume_compiled:
292 add_assume_compiled ("", !value);
295 case OPT_fbootclasspath_:
296 jcf_path_bootclasspath_arg (arg);
299 case OPT_faux_classpath:
300 case OPT_fclasspath_:
301 case OPT_fCLASSPATH_:
302 jcf_path_classpath_arg (arg);
305 case OPT_fcompile_resource_:
310 if (!dump_switch_p (arg))
319 jcf_path_extdirs_arg (arg);
322 case OPT_foutput_class_dir_:
323 /* FIXME: remove; this is handled by ecj1 now. */
330 case OPT_fsource_filename_:
331 java_read_sourcefilenames (arg);
335 if (cl_options[code].flags & CL_Java)
343 /* Global open file. */
349 /* FIXME: Indirect dispatch isn't yet compatible with static class
350 init optimization. */
351 if (flag_indirect_dispatch)
352 always_initialize_class_p = true;
354 if (!flag_indirect_dispatch)
355 flag_indirect_classes = false;
357 jcf_path_seal (v_flag);
359 java_init_decl_processing ();
361 using_eh_for_cleanups ();
369 jcf_dependency_write ();
372 /* Buffer used by lang_printable_name. */
373 static char *decl_buf = NULL;
375 /* Allocated size of decl_buf. */
376 static int decl_buflen = 0;
378 /* Length of used part of decl_buf; position for next character. */
379 static int decl_bufpos = 0;
381 /* Append the string STR to decl_buf.
382 It length is given by LEN; -1 means the string is nul-terminated. */
385 put_decl_string (const char *str, int len)
389 if (decl_bufpos + len >= decl_buflen)
391 if (decl_buf == NULL)
393 decl_buflen = len + 100;
394 decl_buf = XNEWVEC (char, decl_buflen);
399 decl_buf = xrealloc (decl_buf, decl_buflen);
402 strcpy (decl_buf + decl_bufpos, str);
406 /* Append to decl_buf a printable name for NODE. */
409 put_decl_node (tree node)
412 if (TREE_CODE (node) == POINTER_TYPE)
414 node = TREE_TYPE (node);
417 if (DECL_P (node) && DECL_NAME (node) != NULL_TREE)
419 if (TREE_CODE (node) == FUNCTION_DECL)
421 /* We want to print the type the DECL belongs to. We don't do
422 that when we handle constructors. */
423 if (! DECL_CONSTRUCTOR_P (node)
424 && ! DECL_ARTIFICIAL (node) && DECL_CONTEXT (node))
426 put_decl_node (TYPE_NAME (DECL_CONTEXT (node)));
427 put_decl_string (".", 1);
429 if (! DECL_CONSTRUCTOR_P (node))
430 put_decl_node (DECL_NAME (node));
431 if (TREE_TYPE (node) != NULL_TREE)
434 tree args = TYPE_ARG_TYPES (TREE_TYPE (node));
435 if (TREE_CODE (TREE_TYPE (node)) == METHOD_TYPE)
436 args = TREE_CHAIN (args);
437 put_decl_string ("(", 1);
438 for ( ; args != end_params_node; args = TREE_CHAIN (args), i++)
441 put_decl_string (",", 1);
442 put_decl_node (TREE_VALUE (args));
444 put_decl_string (")", 1);
448 put_decl_node (DECL_NAME (node));
450 else if (TYPE_P (node) && TYPE_NAME (node) != NULL_TREE)
452 if (TREE_CODE (node) == RECORD_TYPE && TYPE_ARRAY_P (node))
454 put_decl_node (TYPE_ARRAY_ELEMENT (node));
455 put_decl_string("[]", 2);
457 else if (node == promoted_byte_type_node)
458 put_decl_string ("byte", 4);
459 else if (node == promoted_short_type_node)
460 put_decl_string ("short", 5);
461 else if (node == promoted_char_type_node)
462 put_decl_string ("char", 4);
463 else if (node == promoted_boolean_type_node)
464 put_decl_string ("boolean", 7);
465 else if (node == void_type_node && was_pointer)
466 put_decl_string ("null", 4);
468 put_decl_node (TYPE_NAME (node));
470 else if (TREE_CODE (node) == IDENTIFIER_NODE)
471 put_decl_string (IDENTIFIER_POINTER (node), IDENTIFIER_LENGTH (node));
473 put_decl_string ("<unknown>", -1);
476 /* Return a user-friendly name for DECL.
477 The resulting string is only valid until the next call.
478 The value of the hook decl_printable_name is this function,
479 which is also called directly by java_print_error_function. */
482 lang_printable_name (tree decl, int v)
485 if (v == 0 && TREE_CODE (decl) == FUNCTION_DECL)
486 put_decl_node (DECL_NAME (decl));
488 put_decl_node (decl);
489 put_decl_string ("", 1);
493 /* Print on stderr the current class and method context. This function
494 is the value of the hook print_error_function. */
496 static GTY(()) tree last_error_function_context;
497 static GTY(()) tree last_error_function;
499 java_print_error_function (diagnostic_context *context ATTRIBUTE_UNUSED,
502 /* Don't print error messages with bogus function prototypes. */
503 if (inhibit_error_function_printing)
506 if (current_function_decl != NULL
507 && DECL_CONTEXT (current_function_decl) != last_error_function_context)
510 fprintf (stderr, "%s: ", file);
512 last_error_function_context = DECL_CONTEXT (current_function_decl);
513 fprintf (stderr, "In class '%s':\n",
514 lang_printable_name (last_error_function_context, 0));
516 if (last_error_function != current_function_decl)
519 fprintf (stderr, "%s: ", file);
521 if (current_function_decl == NULL)
522 fprintf (stderr, "At top level:\n");
525 const char *name = lang_printable_name (current_function_decl, 2);
526 fprintf (stderr, "In %s '%s':\n",
527 (DECL_CONSTRUCTOR_P (current_function_decl) ? "constructor"
532 last_error_function = current_function_decl;
537 /* Called to install the PRINT_ERROR_FUNCTION hook differently
538 according to LEVEL. LEVEL is 1 during early parsing, when function
539 prototypes aren't fully resolved. java_print_error_function is set
540 so it doesn't print incomplete function prototypes. When LEVEL is
541 2, function prototypes are fully resolved and can be printed when
545 lang_init_source (int level)
547 inhibit_error_function_printing = (level == 1);
551 java_init_options (unsigned int argc ATTRIBUTE_UNUSED,
552 const char **argv ATTRIBUTE_UNUSED)
554 flag_bounds_check = 1;
556 flag_non_call_exceptions = 1;
558 /* In Java floating point operations never trap. */
559 flag_trapping_math = 0;
561 /* In Java arithmetic overflow always wraps around. */
564 /* Java requires left-to-right evaluation of subexpressions. */
565 flag_evaluation_order = 1;
567 /* Unit at a time is disabled for Java because it is considered
569 no_unit_at_a_time_default = 1;
576 /* Post-switch processing. */
578 java_post_options (const char **pfilename)
580 const char *filename = *pfilename;
582 /* Use tree inlining. */
585 if (flag_inline_functions)
586 flag_inline_trees = 2;
588 /* An absolute requirement: if we're not using indirect dispatch, we
589 must always verify everything. */
590 if (! flag_indirect_dispatch)
591 flag_verify_invocations = true;
593 if (flag_reduced_reflection)
595 if (flag_indirect_dispatch)
596 error ("-findirect-dispatch is incompatible "
597 "with -freduced-reflection");
599 error ("-fjni is incompatible with -freduced-reflection");
602 /* Open input file. */
604 if (filename == 0 || !strcmp (filename, "-"))
609 if (dependency_tracking)
610 error ("can't do dependency tracking with input from stdin");
614 if (dependency_tracking)
618 /* If the target is set and the output filename is set, then
619 there's no processing to do here. Otherwise we must
620 compute one or the other. */
621 if (! ((dependency_tracking & DEPEND_TARGET_SET)
622 && (dependency_tracking & DEPEND_FILE_ALREADY_SET)))
624 dot = strrchr (filename, '.');
626 error ("couldn't determine target name for dependency tracking");
629 char *buf = XNEWVEC (char, dot - filename +
630 3 + sizeof (TARGET_OBJECT_SUFFIX));
631 strncpy (buf, filename, dot - filename);
633 /* If emitting class files, we might have multiple
634 targets. The class generation code takes care of
635 registering them. Otherwise we compute the
637 if ((dependency_tracking & DEPEND_TARGET_SET))
641 strcpy (buf + (dot - filename), TARGET_OBJECT_SUFFIX);
642 jcf_dependency_set_target (buf);
645 if ((dependency_tracking & DEPEND_FILE_ALREADY_SET))
647 else if ((dependency_tracking & DEPEND_SET_FILE))
649 strcpy (buf + (dot - filename), ".d");
650 jcf_dependency_set_dep_file (buf);
653 jcf_dependency_set_dep_file ("-");
660 #ifdef USE_MAPPED_LOCATION
661 linemap_add (&line_table, LC_ENTER, false, filename, 0);
662 linemap_add (&line_table, LC_RENAME, false, "<built-in>", 0);
665 /* Initialize the compiler back end. */
669 /* Return either DECL or its known constant value (if it has one). */
672 decl_constant_value (tree decl)
674 if (/* Don't change a variable array bound or initial value to a constant
675 in a place where a variable is invalid. */
676 current_function_decl != 0
677 && ! TREE_THIS_VOLATILE (decl)
678 && TREE_READONLY (decl)
679 && DECL_INITIAL (decl) != 0
680 && TREE_CODE (DECL_INITIAL (decl)) != ERROR_MARK
681 /* This is invalid if initial value is not constant.
682 If it has either a function call, a memory reference,
683 or a variable, then re-evaluating it could give different results. */
684 && TREE_CONSTANT (DECL_INITIAL (decl))
685 /* Check for cases where this is sub-optimal, even though valid. */
686 && TREE_CODE (DECL_INITIAL (decl)) != CONSTRUCTOR)
687 return DECL_INITIAL (decl);
691 /* Walk the language specific tree nodes during inlining. */
694 java_tree_inlining_walk_subtrees (tree *tp ATTRIBUTE_UNUSED,
695 int *subtrees ATTRIBUTE_UNUSED,
696 walk_tree_fn func ATTRIBUTE_UNUSED,
697 void *data ATTRIBUTE_UNUSED,
698 struct pointer_set_t *pset ATTRIBUTE_UNUSED)
703 #define WALK_SUBTREE(NODE) \
706 result = walk_tree (&(NODE), func, data, pset); \
716 code = TREE_CODE (t);
720 WALK_SUBTREE (BLOCK_EXPR_BODY (t));
730 /* Every call to a static constructor has an associated boolean
731 variable which is in the outermost scope of the calling method.
732 This variable is used to avoid multiple calls to the static
733 constructor for each class.
735 It looks something like this:
739 boolean dummy = OtherClass.is_initialized;
744 OtherClass.initialize();
746 ... use OtherClass.data ...
749 Each of these boolean variables has an entry in the
750 DECL_FUNCTION_INIT_TEST_TABLE of a method. When inlining a method
751 we must merge the DECL_FUNCTION_INIT_TEST_TABLE from the function
752 being inlined and create the boolean variables in the outermost
753 scope of the method being inlined into. */
755 /* Create a mapping from a boolean variable in a method being inlined
756 to one in the scope of the method being inlined into. */
759 merge_init_test_initialization (void **entry, void *x)
761 struct treetreehash_entry *ite = (struct treetreehash_entry *) *entry;
762 splay_tree decl_map = (splay_tree)x;
764 tree *init_test_decl;
766 /* See if we have remapped this declaration. If we haven't there's
767 a bug in the inliner. */
768 n = splay_tree_lookup (decl_map, (splay_tree_key) ite->value);
771 /* Create a new entry for the class and its remapped boolean
772 variable. If we already have a mapping for this class we've
773 already initialized it, so don't overwrite the value. */
774 init_test_decl = java_treetreehash_new
775 (DECL_FUNCTION_INIT_TEST_TABLE (current_function_decl), ite->key);
776 if (!*init_test_decl)
777 *init_test_decl = (tree)n->value;
779 /* This fixes a weird case.
781 The front end assumes that once we have called a method that
782 initializes some class, we can assume the class is initialized. It
783 does this by setting the DECL_INITIAL of the init_test_decl for that
784 class, and no initializations are emitted for that class.
786 However, what if the method that is supposed to do the initialization
787 is itself inlined in the caller? When expanding the called method
788 we'll assume that the class initialization has already been done,
789 because the DECL_INITIAL of the init_test_decl is set.
791 To fix this we remove the DECL_INITIAL (in the caller scope) of all
792 the init_test_decls corresponding to classes initialized by the
793 inlined method. This makes the caller no longer assume that the
794 method being inlined does any class initializations. */
795 DECL_INITIAL (*init_test_decl) = NULL;
800 /* Merge the DECL_FUNCTION_INIT_TEST_TABLE from the function we're
804 java_inlining_merge_static_initializers (tree fn, void *decl_map)
807 (DECL_FUNCTION_INIT_TEST_TABLE (fn),
808 merge_init_test_initialization, decl_map);
811 /* Lookup a DECL_FUNCTION_INIT_TEST_TABLE entry in the method we're
812 inlining into. If we already have a corresponding entry in that
813 class we don't need to create another one, so we create a mapping
814 from the variable in the inlined class to the corresponding
818 inline_init_test_initialization (void **entry, void *x)
820 struct treetreehash_entry *ite = (struct treetreehash_entry *) *entry;
821 splay_tree decl_map = (splay_tree)x;
823 tree h = java_treetreehash_find
824 (DECL_FUNCTION_INIT_TEST_TABLE (current_function_decl), ite->key);
827 splay_tree_insert (decl_map,
828 (splay_tree_key) ite->value,
829 (splay_tree_value) h);
833 /* Look up the boolean variables in the DECL_FUNCTION_INIT_TEST_TABLE
834 of a method being inlined. For each hone, if we already have a
835 variable associated with the same class in the method being inlined
836 into, create a new mapping for it. */
839 java_inlining_map_static_initializers (tree fn, void *decl_map)
842 (DECL_FUNCTION_INIT_TEST_TABLE (fn),
843 inline_init_test_initialization, decl_map);
846 /* Avoid voluminous output for deep recursion of compound exprs. */
849 dump_compound_expr (dump_info_p di, tree t)
855 switch (TREE_CODE (TREE_OPERAND (t, i)))
858 dump_compound_expr (di, TREE_OPERAND (t, i));
862 dump_child ("expr", TREE_OPERAND (t, i));
868 java_dump_tree (void *dump_info, tree t)
871 dump_info_p di = (dump_info_p) dump_info;
873 /* Figure out what kind of node this is. */
874 code = TREE_CODE (t);
879 dump_child ("args", DECL_ARGUMENTS (t));
880 if (DECL_EXTERNAL (t))
881 dump_string (di, "undefined");
883 dump_string (di, "extern");
885 dump_string (di, "static");
886 if (DECL_LANG_SPECIFIC (t))
887 dump_child ("body", DECL_FUNCTION_BODY (t));
888 if (DECL_LANG_SPECIFIC (t) && !dump_flag (di, TDF_SLIM, t))
889 dump_child ("inline body", DECL_SAVED_TREE (t));
893 dump_child ("expr", TREE_OPERAND (t, 0));
897 dump_child ("goto", TREE_OPERAND (t, 0));
901 dump_child ("label", TREE_OPERAND (t, 0));
905 if (BLOCK_EXPR_BODY (t))
907 tree local = BLOCK_VARS (t);
910 tree next = TREE_CHAIN (local);
911 dump_child ("var", local);
916 tree block = BLOCK_EXPR_BODY (t);
917 dump_child ("body", block);
918 block = TREE_CHAIN (block);
924 if (!dump_flag (di, TDF_SLIM, t))
926 dump_compound_expr (di, t);
935 /* Java calls can't, in general, be sibcalls because we need an
936 accurate stack trace in order to guarantee correct operation of
937 methods such as Class.forName(String) and
938 SecurityManager.getClassContext(). */
941 java_decl_ok_for_sibcall (tree decl)
943 return (decl != NULL && DECL_CONTEXT (decl) == output_class
944 && DECL_INLINE (decl));
947 /* Given a call_expr, try to figure out what its target might be. In
948 the case of an indirection via the atable, search for the decl. If
949 the decl is external, we return NULL. If we don't, the optimizer
950 will replace the indirection with a direct call, which undoes the
951 purpose of the atable indirection. */
953 java_get_callee_fndecl (const_tree call_expr)
955 tree method, table, element, atable_methods;
959 /* FIXME: This is disabled because we end up passing calls through
960 the PLT, and we do NOT want to do that. */
963 if (TREE_CODE (call_expr) != CALL_EXPR)
965 method = CALL_EXPR_FN (call_expr);
967 if (TREE_CODE (method) != ARRAY_REF)
969 table = TREE_OPERAND (method, 0);
970 if (! DECL_LANG_SPECIFIC(table)
971 || !DECL_OWNER (table)
972 || TYPE_ATABLE_DECL (DECL_OWNER (table)) != table)
975 atable_methods = TYPE_ATABLE_METHODS (DECL_OWNER (table));
976 index = TREE_INT_CST_LOW (TREE_OPERAND (method, 1));
978 /* FIXME: Replace this for loop with a hash table lookup. */
979 for (element = atable_methods; element; element = TREE_CHAIN (element))
983 tree purpose = TREE_PURPOSE (element);
984 if (TREE_CODE (purpose) == FUNCTION_DECL
985 && ! DECL_EXTERNAL (purpose))
997 /* Clear the binding stack. */
999 java_clear_binding_stack (void)
1001 while (!global_bindings_p ())
1005 #include "gt-java-lang.h"