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"
44 #include "diagnostic.h"
45 #include "tree-inline.h"
46 #include "splay-tree.h"
47 #include "tree-dump.h"
51 static bool java_init (void);
52 static void java_finish (void);
53 static unsigned int java_init_options (unsigned int, const char **);
54 static bool java_post_options (const char **);
56 static int java_handle_option (size_t scode, const char *arg, int value);
57 static void put_decl_string (const char *, int);
58 static void put_decl_node (tree);
59 static void java_print_error_function (diagnostic_context *, const char *);
60 static tree java_tree_inlining_walk_subtrees (tree *, int *, walk_tree_fn,
61 void *, struct pointer_set_t *);
62 static int merge_init_test_initialization (void * *, void *);
63 static int inline_init_test_initialization (void * *, void *);
64 static bool java_can_use_bit_fields_p (void);
65 static bool java_dump_tree (void *, tree);
66 static void dump_compound_expr (dump_info_p, tree);
67 static bool java_decl_ok_for_sibcall (tree);
68 static tree java_get_callee_fndecl (tree);
69 static void java_clear_binding_stack (void);
71 #ifndef TARGET_OBJECT_SUFFIX
72 # define TARGET_OBJECT_SUFFIX ".o"
75 /* Table indexed by tree code giving a string containing a character
76 classifying the tree code. Possibilities are
77 t, d, s, c, r, <, 1 and 2. See java/java-tree.def for details. */
79 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
81 const enum tree_code_class tree_code_type[] = {
84 #include "java-tree.def"
88 /* Table indexed by tree code giving number of expression
89 operands beyond the fixed part of the node structure.
90 Not used for types or decls. */
92 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
94 const unsigned char tree_code_length[] = {
97 #include "java-tree.def"
101 /* Names of tree components.
102 Used for printing out the tree and error messages. */
103 #define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
105 const char *const tree_code_name[] = {
108 #include "java-tree.def"
112 /* Used to avoid printing error messages with bogus function
113 prototypes. Starts out false. */
114 static bool inhibit_error_function_printing;
116 int compiling_from_source;
118 const char *resource_name;
120 /* When nonzero, we emit xref strings. Values of the flag for xref
121 backends are defined in xref_flag_table, xref.c. */
123 int flag_emit_xref = 0;
125 /* When nonzero, -Wall was turned on. */
128 /* The encoding of the source file. */
129 const char *current_encoding = NULL;
131 /* When nonzero, report use of deprecated classes, methods, or fields. */
132 int flag_deprecated = 1;
134 /* When zero, don't optimize static class initialization. This flag shouldn't
135 be tested alone, use STATIC_CLASS_INITIALIZATION_OPTIMIZATION_P instead. */
136 /* FIXME: Make this work with gimplify. */
137 /* int flag_optimize_sci = 0; */
139 /* Don't attempt to verify invocations. */
140 int flag_verify_invocations = 0;
142 /* When nonzero, print extra version information. */
143 static int v_flag = 0;
147 /* Variable controlling how dependency tracking is enabled in
149 static int dependency_tracking = 0;
151 /* Flag values for DEPENDENCY_TRACKING. */
152 #define DEPEND_SET_FILE 1
153 #define DEPEND_ENABLE 2
154 #define DEPEND_TARGET_SET 4
155 #define DEPEND_FILE_ALREADY_SET 8
157 struct language_function GTY(())
162 #undef LANG_HOOKS_NAME
163 #define LANG_HOOKS_NAME "GNU Java"
164 #undef LANG_HOOKS_INIT
165 #define LANG_HOOKS_INIT java_init
166 #undef LANG_HOOKS_FINISH
167 #define LANG_HOOKS_FINISH java_finish
168 #undef LANG_HOOKS_INIT_OPTIONS
169 #define LANG_HOOKS_INIT_OPTIONS java_init_options
170 #undef LANG_HOOKS_HANDLE_OPTION
171 #define LANG_HOOKS_HANDLE_OPTION java_handle_option
172 #undef LANG_HOOKS_POST_OPTIONS
173 #define LANG_HOOKS_POST_OPTIONS java_post_options
174 #undef LANG_HOOKS_PARSE_FILE
175 #define LANG_HOOKS_PARSE_FILE java_parse_file
176 #undef LANG_HOOKS_MARK_ADDRESSABLE
177 #define LANG_HOOKS_MARK_ADDRESSABLE java_mark_addressable
178 #undef LANG_HOOKS_TRUTHVALUE_CONVERSION
179 #define LANG_HOOKS_TRUTHVALUE_CONVERSION java_truthvalue_conversion
180 #undef LANG_HOOKS_DUP_LANG_SPECIFIC_DECL
181 #define LANG_HOOKS_DUP_LANG_SPECIFIC_DECL java_dup_lang_specific_decl
182 #undef LANG_HOOKS_DECL_PRINTABLE_NAME
183 #define LANG_HOOKS_DECL_PRINTABLE_NAME lang_printable_name
184 #undef LANG_HOOKS_PRINT_ERROR_FUNCTION
185 #define LANG_HOOKS_PRINT_ERROR_FUNCTION java_print_error_function
186 #undef LANG_HOOKS_CAN_USE_BIT_FIELDS_P
187 #define LANG_HOOKS_CAN_USE_BIT_FIELDS_P java_can_use_bit_fields_p
189 #undef LANG_HOOKS_TYPE_FOR_MODE
190 #define LANG_HOOKS_TYPE_FOR_MODE java_type_for_mode
191 #undef LANG_HOOKS_TYPE_FOR_SIZE
192 #define LANG_HOOKS_TYPE_FOR_SIZE java_type_for_size
193 #undef LANG_HOOKS_SIGNED_TYPE
194 #define LANG_HOOKS_SIGNED_TYPE java_signed_type
195 #undef LANG_HOOKS_UNSIGNED_TYPE
196 #define LANG_HOOKS_UNSIGNED_TYPE java_unsigned_type
197 #undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
198 #define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE java_signed_or_unsigned_type
200 #undef LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN
201 #define LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN java_dump_tree
203 #undef LANG_HOOKS_GIMPLIFY_EXPR
204 #define LANG_HOOKS_GIMPLIFY_EXPR java_gimplify_expr
206 #undef LANG_HOOKS_TREE_INLINING_WALK_SUBTREES
207 #define LANG_HOOKS_TREE_INLINING_WALK_SUBTREES java_tree_inlining_walk_subtrees
209 #undef LANG_HOOKS_DECL_OK_FOR_SIBCALL
210 #define LANG_HOOKS_DECL_OK_FOR_SIBCALL java_decl_ok_for_sibcall
212 #undef LANG_HOOKS_GET_CALLEE_FNDECL
213 #define LANG_HOOKS_GET_CALLEE_FNDECL java_get_callee_fndecl
215 #undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION
216 #define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION java_expand_body
218 #undef LANG_HOOKS_CLEAR_BINDING_STACK
219 #define LANG_HOOKS_CLEAR_BINDING_STACK java_clear_binding_stack
221 /* Each front end provides its own. */
222 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
225 * process java-specific compiler command-line options
226 * return 0, but do not complain if the option is not recognized.
229 java_handle_option (size_t scode, const char *arg, int value)
231 enum opt_code code = (enum opt_code) scode;
236 jcf_path_include_arg (arg);
240 jcf_dependency_init (1);
241 dependency_tracking |= DEPEND_ENABLE;
245 jcf_dependency_init (1);
246 dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
250 jcf_dependency_set_dep_file (arg);
251 dependency_tracking |= DEPEND_FILE_ALREADY_SET;
255 jcf_dependency_init (0);
256 dependency_tracking |= DEPEND_ENABLE;
260 jcf_dependency_init (0);
261 dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
265 jcf_dependency_print_dummies ();
269 jcf_dependency_set_target (arg);
270 dependency_tracking |= DEPEND_TARGET_SET;
275 flag_redundant = value;
276 flag_extraneous_semicolon = value;
277 /* When -Wall given, enable -Wunused. We do this because the C
278 compiler does it, and people expect it. */
282 case OPT_fenable_assertions_:
283 add_enable_assert (arg, value);
286 case OPT_fenable_assertions:
287 add_enable_assert ("", value);
290 case OPT_fdisable_assertions_:
291 add_enable_assert (arg, !value);
294 case OPT_fdisable_assertions:
295 add_enable_assert ("", !value);
298 case OPT_fassume_compiled_:
299 add_assume_compiled (arg, !value);
302 case OPT_fassume_compiled:
303 add_assume_compiled ("", !value);
306 case OPT_fbootclasspath_:
307 jcf_path_bootclasspath_arg (arg);
310 case OPT_fclasspath_:
311 case OPT_fCLASSPATH_:
312 jcf_path_classpath_arg (arg);
315 case OPT_fcompile_resource_:
320 if (!dump_switch_p (arg))
325 current_encoding = arg;
329 jcf_path_extdirs_arg (arg);
332 case OPT_foutput_class_dir_:
333 jcf_write_base_directory = arg;
341 if (cl_options[code].flags & CL_Java)
349 /* Global open file. */
356 extern int flag_minimal_debug;
357 flag_minimal_debug = 0;
360 /* FIXME: Indirect dispatch isn't yet compatible with static class
361 init optimization. */
362 if (flag_indirect_dispatch)
363 always_initialize_class_p = true;
365 /* Force minimum function alignment if g++ uses the least significant
366 bit of function pointers to store the virtual bit. This is required
367 to keep vtables compatible. */
368 if (TARGET_PTRMEMFUNC_VBIT_LOCATION == ptrmemfunc_vbit_in_pfn
369 && force_align_functions_log < 1)
370 force_align_functions_log = 1;
372 jcf_path_seal (v_flag);
374 java_init_decl_processing ();
376 using_eh_for_cleanups ();
384 jcf_dependency_write ();
387 /* Buffer used by lang_printable_name. */
388 static char *decl_buf = NULL;
390 /* Allocated size of decl_buf. */
391 static int decl_buflen = 0;
393 /* Length of used part of decl_buf; position for next character. */
394 static int decl_bufpos = 0;
396 /* Append the string STR to decl_buf.
397 It length is given by LEN; -1 means the string is nul-terminated. */
400 put_decl_string (const char *str, int len)
404 if (decl_bufpos + len >= decl_buflen)
406 if (decl_buf == NULL)
408 decl_buflen = len + 100;
409 decl_buf = xmalloc (decl_buflen);
414 decl_buf = xrealloc (decl_buf, decl_buflen);
417 strcpy (decl_buf + decl_bufpos, str);
421 /* Append to decl_buf a printable name for NODE. */
424 put_decl_node (tree node)
427 if (TREE_CODE (node) == POINTER_TYPE)
429 node = TREE_TYPE (node);
432 if (DECL_P (node) && DECL_NAME (node) != NULL_TREE)
434 if (TREE_CODE (node) == FUNCTION_DECL)
436 /* We want to print the type the DECL belongs to. We don't do
437 that when we handle constructors. */
438 if (! DECL_CONSTRUCTOR_P (node)
439 && ! DECL_ARTIFICIAL (node) && DECL_CONTEXT (node))
441 put_decl_node (TYPE_NAME (DECL_CONTEXT (node)));
442 put_decl_string (".", 1);
444 if (! DECL_CONSTRUCTOR_P (node))
445 put_decl_node (DECL_NAME (node));
446 if (TREE_TYPE (node) != NULL_TREE)
449 tree args = TYPE_ARG_TYPES (TREE_TYPE (node));
450 if (TREE_CODE (TREE_TYPE (node)) == METHOD_TYPE)
451 args = TREE_CHAIN (args);
452 put_decl_string ("(", 1);
453 for ( ; args != end_params_node; args = TREE_CHAIN (args), i++)
456 put_decl_string (",", 1);
457 put_decl_node (TREE_VALUE (args));
459 put_decl_string (")", 1);
463 put_decl_node (DECL_NAME (node));
465 else if (TYPE_P (node) && TYPE_NAME (node) != NULL_TREE)
467 if (TREE_CODE (node) == RECORD_TYPE && TYPE_ARRAY_P (node))
469 put_decl_node (TYPE_ARRAY_ELEMENT (node));
470 put_decl_string("[]", 2);
472 else if (node == promoted_byte_type_node)
473 put_decl_string ("byte", 4);
474 else if (node == promoted_short_type_node)
475 put_decl_string ("short", 5);
476 else if (node == promoted_char_type_node)
477 put_decl_string ("char", 4);
478 else if (node == promoted_boolean_type_node)
479 put_decl_string ("boolean", 7);
480 else if (node == void_type_node && was_pointer)
481 put_decl_string ("null", 4);
483 put_decl_node (TYPE_NAME (node));
485 else if (TREE_CODE (node) == IDENTIFIER_NODE)
486 put_decl_string (IDENTIFIER_POINTER (node), IDENTIFIER_LENGTH (node));
488 put_decl_string ("<unknown>", -1);
491 /* Return a user-friendly name for DECL.
492 The resulting string is only valid until the next call.
493 The value of the hook decl_printable_name is this function,
494 which is also called directly by java_print_error_function. */
497 lang_printable_name (tree decl, int v)
500 if (v == 0 && TREE_CODE (decl) == FUNCTION_DECL)
501 put_decl_node (DECL_NAME (decl));
503 put_decl_node (decl);
504 put_decl_string ("", 1);
508 /* Print on stderr the current class and method context. This function
509 is the value of the hook print_error_function. */
511 static GTY(()) tree last_error_function_context;
512 static GTY(()) tree last_error_function;
514 java_print_error_function (diagnostic_context *context ATTRIBUTE_UNUSED,
517 /* Don't print error messages with bogus function prototypes. */
518 if (inhibit_error_function_printing)
521 if (current_function_decl != NULL
522 && DECL_CONTEXT (current_function_decl) != last_error_function_context)
525 fprintf (stderr, "%s: ", file);
527 last_error_function_context = DECL_CONTEXT (current_function_decl);
528 fprintf (stderr, "In class '%s':\n",
529 lang_printable_name (last_error_function_context, 0));
531 if (last_error_function != current_function_decl)
534 fprintf (stderr, "%s: ", file);
536 if (current_function_decl == NULL)
537 fprintf (stderr, "At top level:\n");
540 const char *name = lang_printable_name (current_function_decl, 2);
541 fprintf (stderr, "In %s '%s':\n",
542 (DECL_CONSTRUCTOR_P (current_function_decl) ? "constructor"
547 last_error_function = current_function_decl;
552 /* Called to install the PRINT_ERROR_FUNCTION hook differently
553 according to LEVEL. LEVEL is 1 during early parsing, when function
554 prototypes aren't fully resolved. java_print_error_function is set
555 so it doesn't print incomplete function prototypes. When LEVEL is
556 2, function prototypes are fully resolved and can be printed when
560 lang_init_source (int level)
562 inhibit_error_function_printing = (level == 1);
566 java_init_options (unsigned int argc ATTRIBUTE_UNUSED,
567 const char **argv ATTRIBUTE_UNUSED)
569 flag_bounds_check = 1;
571 flag_non_call_exceptions = 1;
573 /* In Java floating point operations never trap. */
574 flag_trapping_math = 0;
576 /* In Java arithmetic overflow always wraps around. */
579 /* Java requires left-to-right evaluation of subexpressions. */
580 flag_evaluation_order = 1;
588 java_can_use_bit_fields_p (void)
590 /* The bit-field optimizations cause problems when generating class
592 return flag_emit_class_files ? false : true;
595 /* Post-switch processing. */
597 java_post_options (const char **pfilename)
599 const char *filename = *pfilename;
601 /* Use tree inlining. */
604 if (flag_inline_functions)
605 flag_inline_trees = 2;
607 /* An absolute requirement: if we're not using indirect dispatch, we
608 must always verify everything. */
609 if (! flag_indirect_dispatch)
610 flag_verify_invocations = true;
612 /* Open input file. */
614 if (filename == 0 || !strcmp (filename, "-"))
619 if (dependency_tracking)
620 error ("can't do dependency tracking with input from stdin");
624 if (dependency_tracking)
628 /* If the target is set and the output filename is set, then
629 there's no processing to do here. Otherwise we must
630 compute one or the other. */
631 if (! ((dependency_tracking & DEPEND_TARGET_SET)
632 && (dependency_tracking & DEPEND_FILE_ALREADY_SET)))
634 dot = strrchr (filename, '.');
636 error ("couldn't determine target name for dependency tracking");
639 char *buf = xmalloc (dot - filename +
640 3 + sizeof (TARGET_OBJECT_SUFFIX));
641 strncpy (buf, filename, dot - filename);
643 /* If emitting class files, we might have multiple
644 targets. The class generation code takes care of
645 registering them. Otherwise we compute the
647 if ((dependency_tracking & DEPEND_TARGET_SET))
649 else if (flag_emit_class_files)
650 jcf_dependency_set_target (NULL);
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);
788 /* Create a new entry for the class and its remapped boolean
789 variable. If we already have a mapping for this class we've
790 already initialized it, so don't overwrite the value. */
791 init_test_decl = java_treetreehash_new
792 (DECL_FUNCTION_INIT_TEST_TABLE (current_function_decl), ite->key);
793 if (!*init_test_decl)
794 *init_test_decl = (tree)n->value;
796 /* This fixes a weird case.
798 The front end assumes that once we have called a method that
799 initializes some class, we can assume the class is initialized. It
800 does this by setting the DECL_INITIAL of the init_test_decl for that
801 class, and no initializations are emitted for that class.
803 However, what if the method that is suppoed to do the initialization
804 is itself inlined in the caller? When expanding the called method
805 we'll assume that the class initialization has already been done,
806 because the DECL_INITIAL of the init_test_decl is set.
808 To fix this we remove the DECL_INITIAL (in the caller scope) of all
809 the init_test_decls corresponding to classes initialized by the
810 inlined method. This makes the caller no longer assume that the
811 method being inlined does any class initializations. */
812 DECL_INITIAL (*init_test_decl) = NULL;
817 /* Merge the DECL_FUNCTION_INIT_TEST_TABLE from the function we're
821 java_inlining_merge_static_initializers (tree fn, void *decl_map)
824 (DECL_FUNCTION_INIT_TEST_TABLE (fn),
825 merge_init_test_initialization, decl_map);
828 /* Lookup a DECL_FUNCTION_INIT_TEST_TABLE entry in the method we're
829 inlining into. If we already have a corresponding entry in that
830 class we don't need to create another one, so we create a mapping
831 from the variable in the inlined class to the corresponding
835 inline_init_test_initialization (void **entry, void *x)
837 struct treetreehash_entry *ite = (struct treetreehash_entry *) *entry;
838 splay_tree decl_map = (splay_tree)x;
840 tree h = java_treetreehash_find
841 (DECL_FUNCTION_INIT_TEST_TABLE (current_function_decl), ite->key);
844 splay_tree_insert (decl_map,
845 (splay_tree_key) ite->value,
846 (splay_tree_value) h);
850 /* Look up the boolean variables in the DECL_FUNCTION_INIT_TEST_TABLE
851 of a method being inlined. For each hone, if we already have a
852 variable associated with the same class in the method being inlined
853 into, create a new mapping for it. */
856 java_inlining_map_static_initializers (tree fn, void *decl_map)
859 (DECL_FUNCTION_INIT_TEST_TABLE (fn),
860 inline_init_test_initialization, decl_map);
863 /* Avoid voluminous output for deep recursion of compound exprs. */
866 dump_compound_expr (dump_info_p di, tree t)
872 switch (TREE_CODE (TREE_OPERAND (t, i)))
875 dump_compound_expr (di, TREE_OPERAND (t, i));
878 case EXPR_WITH_FILE_LOCATION:
880 tree wfl_node = EXPR_WFL_NODE (TREE_OPERAND (t, i));
881 dump_child ("expr", wfl_node);
886 dump_child ("expr", TREE_OPERAND (t, i));
892 java_dump_tree (void *dump_info, tree t)
895 dump_info_p di = (dump_info_p) dump_info;
897 /* Figure out what kind of node this is. */
898 code = TREE_CODE (t);
903 dump_child ("args", DECL_ARGUMENTS (t));
904 if (DECL_EXTERNAL (t))
905 dump_string (di, "undefined");
907 dump_string (di, "extern");
909 dump_string (di, "static");
910 if (DECL_LANG_SPECIFIC (t))
911 dump_child ("body", DECL_FUNCTION_BODY (t));
912 if (DECL_LANG_SPECIFIC (t) && !dump_flag (di, TDF_SLIM, t))
913 dump_child ("inline body", DECL_SAVED_TREE (t));
917 dump_child ("expr", TREE_OPERAND (t, 0));
921 dump_child ("goto", TREE_OPERAND (t, 0));
925 dump_child ("label", TREE_OPERAND (t, 0));
928 case LABELED_BLOCK_EXPR:
929 dump_child ("label", LABELED_BLOCK_LABEL (t));
930 dump_child ("block", LABELED_BLOCK_BODY (t));
933 case EXIT_BLOCK_EXPR:
934 dump_child ("block", EXIT_BLOCK_LABELED_BLOCK (t));
938 if (BLOCK_EXPR_BODY (t))
940 tree local = BLOCK_VARS (t);
943 tree next = TREE_CHAIN (local);
944 dump_child ("var", local);
949 tree block = BLOCK_EXPR_BODY (t);
950 dump_child ("body", block);
951 block = TREE_CHAIN (block);
957 if (!dump_flag (di, TDF_SLIM, t))
959 dump_compound_expr (di, t);
968 /* Java calls can't, in general, be sibcalls because we need an
969 accurate stack trace in order to guarantee correct operation of
970 methods such as Class.forName(String) and
971 SecurityManager.getClassContext(). */
974 java_decl_ok_for_sibcall (tree decl)
976 return decl != NULL && DECL_CONTEXT (decl) == output_class;
979 /* Given a call_expr, try to figure out what its target might be. In
980 the case of an indirection via the atable, search for the decl. If
981 the decl is external, we return NULL. If we don't, the optimizer
982 will replace the indirection with a direct call, which undoes the
983 purpose of the atable indirection. */
985 java_get_callee_fndecl (tree call_expr)
987 tree method, table, element, atable_methods;
991 /* FIXME: This is disabled because we end up passing calls through
992 the PLT, and we do NOT want to do that. */
995 if (TREE_CODE (call_expr) != CALL_EXPR)
997 method = TREE_OPERAND (call_expr, 0);
999 if (TREE_CODE (method) != ARRAY_REF)
1001 table = TREE_OPERAND (method, 0);
1002 if (! DECL_LANG_SPECIFIC(table)
1003 || !DECL_OWNER (table)
1004 || TYPE_ATABLE_DECL (DECL_OWNER (table)) != table)
1007 atable_methods = TYPE_ATABLE_METHODS (DECL_OWNER (table));
1008 index = TREE_INT_CST_LOW (TREE_OPERAND (method, 1));
1010 /* FIXME: Replace this for loop with a hash table lookup. */
1011 for (element = atable_methods; element; element = TREE_CHAIN (element))
1015 tree purpose = TREE_PURPOSE (element);
1016 if (TREE_CODE (purpose) == FUNCTION_DECL
1017 && ! DECL_EXTERNAL (purpose))
1029 /* Clear the binding stack. */
1031 java_clear_binding_stack (void)
1033 while (!global_bindings_p ())
1037 #include "gt-java-lang.h"