/* Java(TM) language-specific utility routines.
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002
- Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+ 2005, 2006, 2007 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
-GNU CC is distributed in the hope that it will be useful,
+GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.
+along with GCC; see the file COPYING. If not, write to
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.
Java and all Java-based marks are trademarks or registered trademarks
of Sun Microsystems, Inc. in the United States and other countries.
#include "config.h"
#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
#include "tree.h"
#include "input.h"
#include "rtl.h"
#include "langhooks.h"
#include "langhooks-def.h"
#include "flags.h"
-#include "xref.h"
#include "ggc.h"
#include "diagnostic.h"
#include "tree-inline.h"
-
-struct string_option
-{
- const char *const string;
- int *const variable;
- const int on_value;
-};
-
-static const char *java_init PARAMS ((const char *));
-static void java_finish PARAMS ((void));
-static void java_init_options PARAMS ((void));
-static bool java_post_options PARAMS ((void));
-
-static int java_decode_option PARAMS ((int, char **));
-static void put_decl_string PARAMS ((const char *, int));
-static void put_decl_node PARAMS ((tree));
-static void java_print_error_function PARAMS ((diagnostic_context *,
- const char *));
-static int process_option_with_no PARAMS ((const char *,
- const struct string_option *,
- int));
-static tree java_tree_inlining_walk_subtrees PARAMS ((tree *,
- int *,
- walk_tree_fn,
- void *,
- void *));
-static int java_unsafe_for_reeval PARAMS ((tree));
-static bool java_can_use_bit_fields_p PARAMS ((void));
-
+#include "splay-tree.h"
+#include "tree-dump.h"
+#include "opts.h"
+#include "options.h"
+
+static bool java_init (void);
+static void java_finish (void);
+static unsigned int java_init_options (unsigned int, const char **);
+static bool java_post_options (const char **);
+
+static int java_handle_option (size_t scode, const char *arg, int value);
+static void put_decl_string (const char *, int);
+static void put_decl_node (tree);
+static void java_print_error_function (diagnostic_context *, const char *);
+static tree java_tree_inlining_walk_subtrees (tree *, int *, walk_tree_fn,
+ void *, struct pointer_set_t *);
+static int merge_init_test_initialization (void * *, void *);
+static int inline_init_test_initialization (void * *, void *);
+static bool java_dump_tree (void *, tree);
+static void dump_compound_expr (dump_info_p, tree);
+static bool java_decl_ok_for_sibcall (tree);
+static tree java_get_callee_fndecl (tree);
+static void java_clear_binding_stack (void);
#ifndef TARGET_OBJECT_SUFFIX
# define TARGET_OBJECT_SUFFIX ".o"
#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
-const char tree_code_type[] = {
+const enum tree_code_class tree_code_type[] = {
#include "tree.def"
- 'x',
+ tcc_exceptional,
#include "java-tree.def"
};
#undef DEFTREECODE
};
#undef DEFTREECODE
+/* Table of machine-independent attributes. */
+const struct attribute_spec java_attribute_table[] =
+{
+ { "nonnull", 0, -1, false, true, true,
+ NULL },
+ { NULL, 0, 0, false, false, false, NULL }
+};
+
/* Used to avoid printing error messages with bogus function
prototypes. Starts out false. */
static bool inhibit_error_function_printing;
-int compiling_from_source;
-
-char * resource_name;
-
-int flag_emit_class_files = 0;
-
-/* Nonzero if input file is a file with a list of filenames to compile. */
-
-int flag_filelist_file = 0;
+const char *resource_name;
-/* When non zero, we emit xref strings. Values of the flag for xref
- backends are defined in xref_flag_table, xref.c. */
-
-int flag_emit_xref = 0;
-
-/* When non zero, -Wall was turned on. */
+/* When nonzero, -Wall was turned on. */
int flag_wall = 0;
-/* When non zero, check for redundant modifier uses. */
-int flag_redundant = 0;
-
-/* When non zero, call a library routine to do integer divisions. */
-int flag_use_divide_subroutine = 1;
-
-/* When non zero, generate code for the Boehm GC. */
-int flag_use_boehm_gc = 0;
-
-/* When non zero, assume the runtime uses a hash table to map an
- object to its synchronization structure. */
-int flag_hash_synchronization;
-
-/* When non zero, assume all native functions are implemented with
- JNI, not CNI. */
-int flag_jni = 0;
-
-/* When non zero, warn when source file is newer than matching class
- file. */
-int flag_newer = 1;
-
-/* When non zero, generate checks for references to NULL. */
-int flag_check_references = 0;
-
-/* The encoding of the source file. */
-const char *current_encoding = NULL;
-
-/* When non zero, report the now deprecated empty statements. */
-int flag_extraneous_semicolon;
-
-/* When non zero, always check for a non gcj generated classes archive. */
-int flag_force_classes_archive_check;
+/* When nonzero, report use of deprecated classes, methods, or fields. */
+int flag_deprecated = 1;
/* When zero, don't optimize static class initialization. This flag shouldn't
be tested alone, use STATIC_CLASS_INITIALIZATION_OPTIMIZATION_P instead. */
-int flag_optimize_sci = 1;
-
-/* When non zero, use offset tables for virtual method calls
- in order to improve binary compatibility. */
-int flag_indirect_dispatch = 0;
+/* FIXME: Make this work with gimplify. */
+/* int flag_optimize_sci = 0; */
-/* When zero, don't generate runtime array store checks. */
-int flag_store_check = 1;
+/* Don't attempt to verify invocations. */
+int flag_verify_invocations = 0;
-/* When non zero, print extra version information. */
-static int version_flag = 0;
-
-/* Set non-zero if the user specified -finline-functions on the command
- line. */
-int flag_really_inline = 0;
-
-/* Table of language-dependent -f options.
- STRING is the option name. VARIABLE is the address of the variable.
- ON_VALUE is the value to store in VARIABLE
- if `-fSTRING' is seen as an option.
- (If `-fno-STRING' is seen as an option, the opposite value is stored.) */
-
-static const struct string_option
-lang_f_options[] =
-{
- {"emit-class-file", &flag_emit_class_files, 1},
- {"emit-class-files", &flag_emit_class_files, 1},
- {"filelist-file", &flag_filelist_file, 1},
- {"use-divide-subroutine", &flag_use_divide_subroutine, 1},
- {"use-boehm-gc", &flag_use_boehm_gc, 1},
- {"hash-synchronization", &flag_hash_synchronization, 1},
- {"jni", &flag_jni, 1},
- {"check-references", &flag_check_references, 1},
- {"force-classes-archive-check", &flag_force_classes_archive_check, 1},
- {"optimize-static-class-initialization", &flag_optimize_sci, 1 },
- {"indirect-dispatch", &flag_indirect_dispatch, 1},
- {"store-check", &flag_store_check, 1}
-};
-
-static const struct string_option
-lang_W_options[] =
-{
- { "redundant-modifiers", &flag_redundant, 1 },
- { "extraneous-semicolon", &flag_extraneous_semicolon, 1 },
- { "out-of-date", &flag_newer, 1 }
-};
+/* When nonzero, print extra version information. */
+static int v_flag = 0;
JCF *current_jcf;
#define LANG_HOOKS_FINISH java_finish
#undef LANG_HOOKS_INIT_OPTIONS
#define LANG_HOOKS_INIT_OPTIONS java_init_options
-#undef LANG_HOOKS_DECODE_OPTION
-#define LANG_HOOKS_DECODE_OPTION java_decode_option
+#undef LANG_HOOKS_HANDLE_OPTION
+#define LANG_HOOKS_HANDLE_OPTION java_handle_option
#undef LANG_HOOKS_POST_OPTIONS
#define LANG_HOOKS_POST_OPTIONS java_post_options
#undef LANG_HOOKS_PARSE_FILE
#define LANG_HOOKS_PARSE_FILE java_parse_file
-#undef LANG_HOOKS_UNSAFE_FOR_REEVAL
-#define LANG_HOOKS_UNSAFE_FOR_REEVAL java_unsafe_for_reeval
#undef LANG_HOOKS_MARK_ADDRESSABLE
#define LANG_HOOKS_MARK_ADDRESSABLE java_mark_addressable
-#undef LANG_HOOKS_EXPAND_EXPR
-#define LANG_HOOKS_EXPAND_EXPR java_expand_expr
-#undef LANG_HOOKS_TRUTHVALUE_CONVERSION
-#define LANG_HOOKS_TRUTHVALUE_CONVERSION java_truthvalue_conversion
#undef LANG_HOOKS_DUP_LANG_SPECIFIC_DECL
#define LANG_HOOKS_DUP_LANG_SPECIFIC_DECL java_dup_lang_specific_decl
#undef LANG_HOOKS_DECL_PRINTABLE_NAME
#define LANG_HOOKS_DECL_PRINTABLE_NAME lang_printable_name
#undef LANG_HOOKS_PRINT_ERROR_FUNCTION
#define LANG_HOOKS_PRINT_ERROR_FUNCTION java_print_error_function
-#undef LANG_HOOKS_CAN_USE_BIT_FIELDS_P
-#define LANG_HOOKS_CAN_USE_BIT_FIELDS_P java_can_use_bit_fields_p
#undef LANG_HOOKS_TYPE_FOR_MODE
#define LANG_HOOKS_TYPE_FOR_MODE java_type_for_mode
#undef LANG_HOOKS_TYPE_FOR_SIZE
#define LANG_HOOKS_TYPE_FOR_SIZE java_type_for_size
-#undef LANG_HOOKS_SIGNED_TYPE
-#define LANG_HOOKS_SIGNED_TYPE java_signed_type
-#undef LANG_HOOKS_UNSIGNED_TYPE
-#define LANG_HOOKS_UNSIGNED_TYPE java_unsigned_type
-#undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
-#define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE java_signed_or_unsigned_type
+
+#undef LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN
+#define LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN java_dump_tree
+
+#undef LANG_HOOKS_GIMPLIFY_EXPR
+#define LANG_HOOKS_GIMPLIFY_EXPR java_gimplify_expr
#undef LANG_HOOKS_TREE_INLINING_WALK_SUBTREES
#define LANG_HOOKS_TREE_INLINING_WALK_SUBTREES java_tree_inlining_walk_subtrees
-/* Each front end provides its own. */
-const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
+#undef LANG_HOOKS_DECL_OK_FOR_SIBCALL
+#define LANG_HOOKS_DECL_OK_FOR_SIBCALL java_decl_ok_for_sibcall
-/* Process an option that can accept a `no-' form.
- Return 1 if option found, 0 otherwise. */
-static int
-process_option_with_no (p, table, table_size)
- const char *p;
- const struct string_option *table;
- int table_size;
-{
- int j;
+#undef LANG_HOOKS_GET_CALLEE_FNDECL
+#define LANG_HOOKS_GET_CALLEE_FNDECL java_get_callee_fndecl
- for (j = 0; j < table_size; j++)
- {
- if (!strcmp (p, table[j].string))
- {
- *table[j].variable = table[j].on_value;
- return 1;
- }
- if (p[0] == 'n' && p[1] == 'o' && p[2] == '-'
- && ! strcmp (p+3, table[j].string))
- {
- *table[j].variable = ! table[j].on_value;
- return 1;
- }
- }
+#undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION
+#define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION java_expand_body
- return 0;
-}
+#undef LANG_HOOKS_CLEAR_BINDING_STACK
+#define LANG_HOOKS_CLEAR_BINDING_STACK java_clear_binding_stack
+
+#undef LANG_HOOKS_SET_DECL_ASSEMBLER_NAME
+#define LANG_HOOKS_SET_DECL_ASSEMBLER_NAME java_mangle_decl
+
+#undef LANG_HOOKS_ATTRIBUTE_TABLE
+#define LANG_HOOKS_ATTRIBUTE_TABLE java_attribute_table
+
+/* Each front end provides its own. */
+const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
/*
* process java-specific compiler command-line options
* return 0, but do not complain if the option is not recognized.
*/
static int
-java_decode_option (argc, argv)
- int argc __attribute__ ((__unused__));
- char **argv;
+java_handle_option (size_t scode, const char *arg, int value)
{
- char *p = argv[0];
-
- jcf_path_init ();
-
- if (strcmp (p, "-version") == 0)
- {
- version_flag = 1;
- /* We return 0 so that the caller can process this. */
- return 0;
- }
+ enum opt_code code = (enum opt_code) scode;
-#define CLARG "-fcompile-resource="
- if (strncmp (p, CLARG, sizeof (CLARG) - 1) == 0)
- {
- resource_name = p + sizeof (CLARG) - 1;
- return 1;
- }
-#undef CLARG
-#define CLARG "-fassume-compiled="
- if (strncmp (p, CLARG, sizeof (CLARG) - 1) == 0)
- {
- add_assume_compiled (p + sizeof (CLARG) - 1, 0);
- return 1;
- }
-#undef CLARG
-#define CLARG "-fno-assume-compiled="
- if (strncmp (p, CLARG, sizeof (CLARG) - 1) == 0)
- {
- add_assume_compiled (p + sizeof (CLARG) - 1, 1);
- return 1;
- }
-#undef CLARG
-#define CLARG "-fassume-compiled"
- if (strncmp (p, CLARG, sizeof (CLARG) - 1) == 0)
- {
- add_assume_compiled ("", 0);
- return 1;
- }
-#undef CLARG
-#define CLARG "-fno-assume-compiled"
- if (strncmp (p, CLARG, sizeof (CLARG) - 1) == 0)
- {
- add_assume_compiled ("", 1);
- return 1;
- }
-#undef CLARG
-#define CLARG "-fCLASSPATH="
- if (strncmp (p, CLARG, sizeof (CLARG) - 1) == 0)
- {
- jcf_path_classpath_arg (p + sizeof (CLARG) - 1);
- return 1;
- }
-#undef CLARG
-#define CLARG "-fclasspath="
- if (strncmp (p, CLARG, sizeof (CLARG) - 1) == 0)
- {
- jcf_path_classpath_arg (p + sizeof (CLARG) - 1);
- return 1;
- }
-#undef CLARG
-#define CLARG "-fbootclasspath="
- if (strncmp (p, CLARG, sizeof (CLARG) - 1) == 0)
- {
- jcf_path_bootclasspath_arg (p + sizeof (CLARG) - 1);
- return 1;
- }
-#undef CLARG
-#define CLARG "-fextdirs="
- if (strncmp (p, CLARG, sizeof (CLARG) - 1) == 0)
- {
- jcf_path_extdirs_arg (p + sizeof (CLARG) - 1);
- return 1;
- }
-#undef CLARG
- else if (strncmp (p, "-I", 2) == 0)
- {
- jcf_path_include_arg (p + 2);
- return 1;
- }
-
-#define ARG "-foutput-class-dir="
- if (strncmp (p, ARG, sizeof (ARG) - 1) == 0)
- {
- jcf_write_base_directory = p + sizeof (ARG) - 1;
- return 1;
- }
-#undef ARG
-#define ARG "-fencoding="
- if (strncmp (p, ARG, sizeof (ARG) - 1) == 0)
- {
- current_encoding = p + sizeof (ARG) - 1;
- return 1;
- }
-#undef ARG
-#define ARG "-finline-functions"
- if (strncmp (p, ARG, sizeof (ARG) - 1) == 0)
- {
- flag_inline_functions = 1;
- flag_really_inline = 1;
- return 1;
- }
-#undef ARG
-
- if (p[0] == '-' && p[1] == 'f')
- {
- /* Some kind of -f option.
- P's value is the option sans `-f'.
- Search for it in the table of options. */
- p += 2;
- if (process_option_with_no (p, lang_f_options,
- ARRAY_SIZE (lang_f_options)))
- return 1;
- return dump_switch_p (p);
- }
-
- if (strcmp (p, "-Wall") == 0)
+ switch (code)
{
- flag_wall = 1;
- flag_redundant = 1;
- flag_extraneous_semicolon = 1;
- /* When -Wall given, enable -Wunused. We do this because the C
- compiler does it, and people expect it. */
- set_Wunused (1);
- return 1;
- }
+ case OPT_I:
+ jcf_path_include_arg (arg);
+ break;
- if (p[0] == '-' && p[1] == 'W')
- {
- /* Skip `-W' and see if we accept the option or its `no-' form. */
- p += 2;
- return process_option_with_no (p, lang_W_options,
- ARRAY_SIZE (lang_W_options));
- }
+ case OPT_M:
+ jcf_dependency_init (1);
+ dependency_tracking |= DEPEND_ENABLE;
+ break;
- if (strcmp (p, "-MD") == 0)
- {
+ case OPT_MD_:
jcf_dependency_init (1);
dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
- return 1;
- }
- else if (strcmp (p, "-MMD") == 0)
- {
+ break;
+
+ case OPT_MF:
+ jcf_dependency_set_dep_file (arg);
+ dependency_tracking |= DEPEND_FILE_ALREADY_SET;
+ break;
+
+ case OPT_MM:
jcf_dependency_init (0);
- dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
- return 1;
- }
- else if (strcmp (p, "-M") == 0)
- {
- jcf_dependency_init (1);
dependency_tracking |= DEPEND_ENABLE;
- return 1;
- }
- else if (strcmp (p, "-MM") == 0)
- {
+ break;
+
+ case OPT_MMD_:
jcf_dependency_init (0);
- dependency_tracking |= DEPEND_ENABLE;
- return 1;
- }
- else if (strcmp (p, "-MP") == 0)
- {
+ dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
+ break;
+
+ case OPT_MP:
jcf_dependency_print_dummies ();
- return 1;
- }
- else if (strcmp (p, "-MT") == 0)
- {
- jcf_dependency_set_target (argv[1]);
+ break;
+
+ case OPT_MT:
+ jcf_dependency_set_target (arg);
dependency_tracking |= DEPEND_TARGET_SET;
- return 2;
- }
- else if (strcmp (p, "-MF") == 0)
- {
- jcf_dependency_set_dep_file (argv[1]);
- dependency_tracking |= DEPEND_FILE_ALREADY_SET;
- return 2;
- }
+ break;
- return 0;
-}
+ case OPT_Wall:
+ flag_wall = value;
+ /* When -Wall given, enable -Wunused. We do this because the C
+ compiler does it, and people expect it. */
+ set_Wunused (value);
+ break;
-/* Global open file. */
-FILE *finput;
+ case OPT_fenable_assertions_:
+ add_enable_assert (arg, value);
+ break;
-static const char *
-java_init (filename)
- const char *filename;
-{
-#if 0
- extern int flag_minimal_debug;
- flag_minimal_debug = 0;
-#endif
+ case OPT_fenable_assertions:
+ add_enable_assert ("", value);
+ break;
- if (flag_inline_functions)
- flag_inline_trees = 1;
+ case OPT_fdisable_assertions_:
+ add_enable_assert (arg, !value);
+ break;
- /* Open input file. */
+ case OPT_fdisable_assertions:
+ add_enable_assert ("", !value);
+ break;
- if (filename == 0 || !strcmp (filename, "-"))
- {
- finput = stdin;
- filename = "stdin";
+ case OPT_fassume_compiled_:
+ add_assume_compiled (arg, !value);
+ break;
- if (dependency_tracking)
- error ("can't do dependency tracking with input from stdin");
- }
- else
- {
- if (dependency_tracking)
- {
- char *dot;
+ case OPT_fassume_compiled:
+ add_assume_compiled ("", !value);
+ break;
- /* If the target is set and the output filename is set, then
- there's no processing to do here. Otherwise we must
- compute one or the other. */
- if (! ((dependency_tracking & DEPEND_TARGET_SET)
- && (dependency_tracking & DEPEND_FILE_ALREADY_SET)))
- {
- dot = strrchr (filename, '.');
- if (dot == NULL)
- error ("couldn't determine target name for dependency tracking");
- else
- {
- char *buf = (char *) xmalloc (dot - filename +
- 3 + sizeof (TARGET_OBJECT_SUFFIX));
- strncpy (buf, filename, dot - filename);
+ case OPT_fbootclasspath_:
+ jcf_path_bootclasspath_arg (arg);
+ break;
- /* If emitting class files, we might have multiple
- targets. The class generation code takes care of
- registering them. Otherwise we compute the
- target name here. */
- if ((dependency_tracking & DEPEND_TARGET_SET))
- ; /* Nothing. */
- else if (flag_emit_class_files)
- jcf_dependency_set_target (NULL);
- else
- {
- strcpy (buf + (dot - filename), TARGET_OBJECT_SUFFIX);
- jcf_dependency_set_target (buf);
- }
+ case OPT_faux_classpath:
+ case OPT_fclasspath_:
+ case OPT_fCLASSPATH_:
+ jcf_path_classpath_arg (arg);
+ break;
- if ((dependency_tracking & DEPEND_FILE_ALREADY_SET))
- ; /* Nothing. */
- else if ((dependency_tracking & DEPEND_SET_FILE))
- {
- strcpy (buf + (dot - filename), ".d");
- jcf_dependency_set_dep_file (buf);
- }
- else
- jcf_dependency_set_dep_file ("-");
+ case OPT_fcompile_resource_:
+ resource_name = arg;
+ break;
- free (buf);
- }
- }
- }
+ case OPT_fdump_:
+ if (!dump_switch_p (arg))
+ return 0;
+ break;
+
+ case OPT_fencoding_:
+ /* Nothing. */
+ break;
+
+ case OPT_fextdirs_:
+ jcf_path_extdirs_arg (arg);
+ break;
+
+ case OPT_foutput_class_dir_:
+ /* FIXME: remove; this is handled by ecj1 now. */
+ break;
+
+ case OPT_version:
+ v_flag = 1;
+ break;
+
+ case OPT_fsource_filename_:
+ java_read_sourcefilenames (arg);
+ break;
+
+ default:
+ if (cl_options[code].flags & CL_Java)
+ break;
+ gcc_unreachable ();
}
- jcf_path_init ();
- jcf_path_seal (version_flag);
+ return 1;
+}
+
+/* Global open file. */
+FILE *finput;
+
+static bool
+java_init (void)
+{
+ /* FIXME: Indirect dispatch isn't yet compatible with static class
+ init optimization. */
+ if (flag_indirect_dispatch)
+ always_initialize_class_p = true;
+
+ if (!flag_indirect_dispatch)
+ flag_indirect_classes = false;
+
+ jcf_path_seal (v_flag);
java_init_decl_processing ();
using_eh_for_cleanups ();
- return filename;
+ return true;
}
static void
-java_finish ()
+java_finish (void)
{
jcf_dependency_write ();
}
It length is given by LEN; -1 means the string is nul-terminated. */
static void
-put_decl_string (str, len)
- const char *str;
- int len;
+put_decl_string (const char *str, int len)
{
if (len < 0)
len = strlen (str);
if (decl_buf == NULL)
{
decl_buflen = len + 100;
- decl_buf = (char *) xmalloc (decl_buflen);
+ decl_buf = XNEWVEC (char, decl_buflen);
}
else
{
decl_buflen *= 2;
- decl_buf = (char *) xrealloc (decl_buf, decl_buflen);
+ decl_buf = xrealloc (decl_buf, decl_buflen);
}
}
strcpy (decl_buf + decl_bufpos, str);
/* Append to decl_buf a printable name for NODE. */
static void
-put_decl_node (node)
- tree node;
+put_decl_node (tree node)
{
int was_pointer = 0;
if (TREE_CODE (node) == POINTER_TYPE)
node = TREE_TYPE (node);
was_pointer = 1;
}
- if (TREE_CODE_CLASS (TREE_CODE (node)) == 'd'
- && DECL_NAME (node) != NULL_TREE)
+ if (DECL_P (node) && DECL_NAME (node) != NULL_TREE)
{
if (TREE_CODE (node) == FUNCTION_DECL)
{
else
put_decl_node (DECL_NAME (node));
}
- else if (TREE_CODE_CLASS (TREE_CODE (node)) == 't'
- && TYPE_NAME (node) != NULL_TREE)
+ else if (TYPE_P (node) && TYPE_NAME (node) != NULL_TREE)
{
if (TREE_CODE (node) == RECORD_TYPE && TYPE_ARRAY_P (node))
{
which is also called directly by java_print_error_function. */
const char *
-lang_printable_name (decl, v)
- tree decl;
- int v __attribute__ ((__unused__));
+lang_printable_name (tree decl, int v)
{
decl_bufpos = 0;
- put_decl_node (decl);
- put_decl_string ("", 1);
- return decl_buf;
-}
-
-/* Does the same thing that lang_printable_name, but add a leading
- space to the DECL name string -- With Leading Space. */
-
-const char *
-lang_printable_name_wls (decl, v)
- tree decl;
- int v __attribute__ ((__unused__));
-{
- decl_bufpos = 1;
- put_decl_node (decl);
+ if (v == 0 && TREE_CODE (decl) == FUNCTION_DECL)
+ put_decl_node (DECL_NAME (decl));
+ else
+ put_decl_node (decl);
put_decl_string ("", 1);
- decl_buf [0] = ' ';
return decl_buf;
}
static GTY(()) tree last_error_function_context;
static GTY(()) tree last_error_function;
static void
-java_print_error_function (context, file)
- diagnostic_context *context __attribute__((__unused__));
- const char *file;
+java_print_error_function (diagnostic_context *context ATTRIBUTE_UNUSED,
+ const char *file)
{
/* Don't print error messages with bogus function prototypes. */
if (inhibit_error_function_printing)
fprintf (stderr, "%s: ", file);
last_error_function_context = DECL_CONTEXT (current_function_decl);
- fprintf (stderr, "In class `%s':\n",
+ fprintf (stderr, "In class '%s':\n",
lang_printable_name (last_error_function_context, 0));
}
if (last_error_function != current_function_decl)
else
{
const char *name = lang_printable_name (current_function_decl, 2);
- fprintf (stderr, "In %s `%s':\n",
- (DECL_CONSTRUCTOR_P (current_function_decl) ? "constructor"
+ fprintf (stderr, "In %s '%s':\n",
+ (DECL_CONSTRUCTOR_P (current_function_decl) ? "constructor"
: "method"),
name);
}
2, function prototypes are fully resolved and can be printed when
reporting errors. */
-void lang_init_source (level)
- int level;
+void
+lang_init_source (int level)
{
inhibit_error_function_printing = (level == 1);
}
-static void
-java_init_options ()
+static unsigned int
+java_init_options (unsigned int argc ATTRIBUTE_UNUSED,
+ const char **argv ATTRIBUTE_UNUSED)
{
flag_bounds_check = 1;
flag_exceptions = 1;
/* In Java floating point operations never trap. */
flag_trapping_math = 0;
-}
-static bool
-java_can_use_bit_fields_p ()
-{
- /* The bit-field optimizations cause problems when generating class
- files. */
- return flag_emit_class_files ? false : true;
+ /* In Java arithmetic overflow always wraps around. */
+ flag_wrapv = 1;
+
+ /* Java requires left-to-right evaluation of subexpressions. */
+ flag_evaluation_order = 1;
+
+ /* Unit at a time is disabled for Java because it is considered
+ too expensive. */
+ no_unit_at_a_time_default = 1;
+
+ jcf_path_init ();
+
+ return CL_Java;
}
/* Post-switch processing. */
static bool
-java_post_options ()
+java_post_options (const char **pfilename)
{
- /* Use tree inlining if possible. Function instrumentation is only
- done in the RTL level, so we disable tree inlining. */
- if (! flag_instrument_function_entry_exit)
+ const char *filename = *pfilename;
+
+ /* Use tree inlining. */
+ if (!flag_no_inline)
+ flag_no_inline = 1;
+ if (flag_inline_functions)
+ flag_inline_trees = 2;
+
+ /* An absolute requirement: if we're not using indirect dispatch, we
+ must always verify everything. */
+ if (! flag_indirect_dispatch)
+ flag_verify_invocations = true;
+
+ if (flag_reduced_reflection)
+ {
+ if (flag_indirect_dispatch)
+ error ("-findirect-dispatch is incompatible "
+ "with -freduced-reflection");
+ if (flag_jni)
+ error ("-fjni is incompatible with -freduced-reflection");
+ }
+
+ /* Open input file. */
+
+ if (filename == 0 || !strcmp (filename, "-"))
+ {
+ finput = stdin;
+ filename = "stdin";
+
+ if (dependency_tracking)
+ error ("can't do dependency tracking with input from stdin");
+ }
+ else
{
- if (!flag_no_inline)
- flag_no_inline = 1;
- if (flag_inline_functions)
+ if (dependency_tracking)
{
- flag_inline_trees = 2;
- flag_inline_functions = 0;
+ char *dot;
+
+ /* If the target is set and the output filename is set, then
+ there's no processing to do here. Otherwise we must
+ compute one or the other. */
+ if (! ((dependency_tracking & DEPEND_TARGET_SET)
+ && (dependency_tracking & DEPEND_FILE_ALREADY_SET)))
+ {
+ dot = strrchr (filename, '.');
+ if (dot == NULL)
+ error ("couldn't determine target name for dependency tracking");
+ else
+ {
+ char *buf = XNEWVEC (char, dot - filename +
+ 3 + sizeof (TARGET_OBJECT_SUFFIX));
+ strncpy (buf, filename, dot - filename);
+
+ /* If emitting class files, we might have multiple
+ targets. The class generation code takes care of
+ registering them. Otherwise we compute the
+ target name here. */
+ if ((dependency_tracking & DEPEND_TARGET_SET))
+ ; /* Nothing. */
+ else
+ {
+ strcpy (buf + (dot - filename), TARGET_OBJECT_SUFFIX);
+ jcf_dependency_set_target (buf);
+ }
+
+ if ((dependency_tracking & DEPEND_FILE_ALREADY_SET))
+ ; /* Nothing. */
+ else if ((dependency_tracking & DEPEND_SET_FILE))
+ {
+ strcpy (buf + (dot - filename), ".d");
+ jcf_dependency_set_dep_file (buf);
+ }
+ else
+ jcf_dependency_set_dep_file ("-");
+
+ free (buf);
+ }
+ }
}
}
+#ifdef USE_MAPPED_LOCATION
+ linemap_add (&line_table, LC_ENTER, false, filename, 0);
+ linemap_add (&line_table, LC_RENAME, false, "<built-in>", 0);
+#endif
/* Initialize the compiler back end. */
return false;
/* Return either DECL or its known constant value (if it has one). */
tree
-decl_constant_value (decl)
- tree decl;
+decl_constant_value (tree decl)
{
if (/* Don't change a variable array bound or initial value to a constant
in a place where a variable is invalid. */
/* Walk the language specific tree nodes during inlining. */
static tree
-java_tree_inlining_walk_subtrees (tp,subtrees,func,data,htab)
- tree *tp ATTRIBUTE_UNUSED;
- int *subtrees ATTRIBUTE_UNUSED;
- walk_tree_fn func ATTRIBUTE_UNUSED;
- void *data ATTRIBUTE_UNUSED;
- void *htab ATTRIBUTE_UNUSED;
+java_tree_inlining_walk_subtrees (tree *tp ATTRIBUTE_UNUSED,
+ int *subtrees ATTRIBUTE_UNUSED,
+ walk_tree_fn func ATTRIBUTE_UNUSED,
+ void *data ATTRIBUTE_UNUSED,
+ struct pointer_set_t *pset ATTRIBUTE_UNUSED)
{
enum tree_code code;
tree result;
#define WALK_SUBTREE(NODE) \
do \
{ \
- result = walk_tree (&(NODE), func, data, htab); \
+ result = walk_tree (&(NODE), func, data, pset); \
if (result) \
return result; \
} \
switch (code)
{
case BLOCK:
- if (BLOCK_EXPR_BODY (t))
- {
- tree *prev = &BLOCK_EXPR_BODY (*tp);
- while (*prev)
- {
- WALK_SUBTREE (*prev);
- prev = &TREE_CHAIN (*prev);
- }
- }
+ WALK_SUBTREE (BLOCK_EXPR_BODY (t));
return NULL_TREE;
- break;
default:
return NULL_TREE;
}
+
+ #undef WALK_SUBTREE
}
-/* Called from unsafe_for_reeval. */
+/* Every call to a static constructor has an associated boolean
+ variable which is in the outermost scope of the calling method.
+ This variable is used to avoid multiple calls to the static
+ constructor for each class.
+
+ It looks something like this:
+
+ foo ()
+ {
+ boolean dummy = OtherClass.is_initialized;
+
+ ...
+
+ if (! dummy)
+ OtherClass.initialize();
+
+ ... use OtherClass.data ...
+ }
+
+ Each of these boolean variables has an entry in the
+ DECL_FUNCTION_INIT_TEST_TABLE of a method. When inlining a method
+ we must merge the DECL_FUNCTION_INIT_TEST_TABLE from the function
+ being inlined and create the boolean variables in the outermost
+ scope of the method being inlined into. */
+
+/* Create a mapping from a boolean variable in a method being inlined
+ to one in the scope of the method being inlined into. */
+
static int
-java_unsafe_for_reeval (t)
- tree t;
+merge_init_test_initialization (void **entry, void *x)
{
- switch (TREE_CODE (t))
+ struct treetreehash_entry *ite = (struct treetreehash_entry *) *entry;
+ splay_tree decl_map = (splay_tree)x;
+ splay_tree_node n;
+ tree *init_test_decl;
+
+ /* See if we have remapped this declaration. If we haven't there's
+ a bug in the inliner. */
+ n = splay_tree_lookup (decl_map, (splay_tree_key) ite->value);
+ gcc_assert (n);
+
+ /* Create a new entry for the class and its remapped boolean
+ variable. If we already have a mapping for this class we've
+ already initialized it, so don't overwrite the value. */
+ init_test_decl = java_treetreehash_new
+ (DECL_FUNCTION_INIT_TEST_TABLE (current_function_decl), ite->key);
+ if (!*init_test_decl)
+ *init_test_decl = (tree)n->value;
+
+ /* This fixes a weird case.
+
+ The front end assumes that once we have called a method that
+ initializes some class, we can assume the class is initialized. It
+ does this by setting the DECL_INITIAL of the init_test_decl for that
+ class, and no initializations are emitted for that class.
+
+ However, what if the method that is supposed to do the initialization
+ is itself inlined in the caller? When expanding the called method
+ we'll assume that the class initialization has already been done,
+ because the DECL_INITIAL of the init_test_decl is set.
+
+ To fix this we remove the DECL_INITIAL (in the caller scope) of all
+ the init_test_decls corresponding to classes initialized by the
+ inlined method. This makes the caller no longer assume that the
+ method being inlined does any class initializations. */
+ DECL_INITIAL (*init_test_decl) = NULL;
+
+ return true;
+}
+
+/* Merge the DECL_FUNCTION_INIT_TEST_TABLE from the function we're
+ inlining. */
+
+void
+java_inlining_merge_static_initializers (tree fn, void *decl_map)
+{
+ htab_traverse
+ (DECL_FUNCTION_INIT_TEST_TABLE (fn),
+ merge_init_test_initialization, decl_map);
+}
+
+/* Lookup a DECL_FUNCTION_INIT_TEST_TABLE entry in the method we're
+ inlining into. If we already have a corresponding entry in that
+ class we don't need to create another one, so we create a mapping
+ from the variable in the inlined class to the corresponding
+ pre-existing one. */
+
+static int
+inline_init_test_initialization (void **entry, void *x)
+{
+ struct treetreehash_entry *ite = (struct treetreehash_entry *) *entry;
+ splay_tree decl_map = (splay_tree)x;
+
+ tree h = java_treetreehash_find
+ (DECL_FUNCTION_INIT_TEST_TABLE (current_function_decl), ite->key);
+ if (! h)
+ return true;
+ splay_tree_insert (decl_map,
+ (splay_tree_key) ite->value,
+ (splay_tree_value) h);
+ return true;
+}
+
+/* Look up the boolean variables in the DECL_FUNCTION_INIT_TEST_TABLE
+ of a method being inlined. For each hone, if we already have a
+ variable associated with the same class in the method being inlined
+ into, create a new mapping for it. */
+
+void
+java_inlining_map_static_initializers (tree fn, void *decl_map)
+{
+ htab_traverse
+ (DECL_FUNCTION_INIT_TEST_TABLE (fn),
+ inline_init_test_initialization, decl_map);
+}
+
+/* Avoid voluminous output for deep recursion of compound exprs. */
+
+static void
+dump_compound_expr (dump_info_p di, tree t)
+{
+ int i;
+
+ for (i=0; i<2; i++)
{
+ switch (TREE_CODE (TREE_OPERAND (t, i)))
+ {
+ case COMPOUND_EXPR:
+ dump_compound_expr (di, TREE_OPERAND (t, i));
+ break;
+
+ default:
+ dump_child ("expr", TREE_OPERAND (t, i));
+ }
+ }
+}
+
+static bool
+java_dump_tree (void *dump_info, tree t)
+{
+ enum tree_code code;
+ dump_info_p di = (dump_info_p) dump_info;
+
+ /* Figure out what kind of node this is. */
+ code = TREE_CODE (t);
+
+ switch (code)
+ {
+ case FUNCTION_DECL:
+ dump_child ("args", DECL_ARGUMENTS (t));
+ if (DECL_EXTERNAL (t))
+ dump_string (di, "undefined");
+ if (TREE_PUBLIC (t))
+ dump_string (di, "extern");
+ else
+ dump_string (di, "static");
+ if (DECL_LANG_SPECIFIC (t))
+ dump_child ("body", DECL_FUNCTION_BODY (t));
+ if (DECL_LANG_SPECIFIC (t) && !dump_flag (di, TDF_SLIM, t))
+ dump_child ("inline body", DECL_SAVED_TREE (t));
+ return true;
+
+ case RETURN_EXPR:
+ dump_child ("expr", TREE_OPERAND (t, 0));
+ return true;
+
+ case GOTO_EXPR:
+ dump_child ("goto", TREE_OPERAND (t, 0));
+ return true;
+
+ case LABEL_EXPR:
+ dump_child ("label", TREE_OPERAND (t, 0));
+ return true;
+
case BLOCK:
- /* Our expander tries to expand the variables twice. Boom. */
- if (BLOCK_EXPR_DECLS (t) != NULL)
- return 2;
- return unsafe_for_reeval (BLOCK_EXPR_BODY (t));
+ if (BLOCK_EXPR_BODY (t))
+ {
+ tree local = BLOCK_VARS (t);
+ while (local)
+ {
+ tree next = TREE_CHAIN (local);
+ dump_child ("var", local);
+ local = next;
+ }
+
+ {
+ tree block = BLOCK_EXPR_BODY (t);
+ dump_child ("body", block);
+ block = TREE_CHAIN (block);
+ }
+ }
+ return true;
+
+ case COMPOUND_EXPR:
+ if (!dump_flag (di, TDF_SLIM, t))
+ return false;
+ dump_compound_expr (di, t);
+ return true;
default:
break;
}
+ return false;
+}
+
+/* Java calls can't, in general, be sibcalls because we need an
+ accurate stack trace in order to guarantee correct operation of
+ methods such as Class.forName(String) and
+ SecurityManager.getClassContext(). */
+
+static bool
+java_decl_ok_for_sibcall (tree decl)
+{
+ return (decl != NULL && DECL_CONTEXT (decl) == output_class
+ && DECL_INLINE (decl));
+}
+
+/* Given a call_expr, try to figure out what its target might be. In
+ the case of an indirection via the atable, search for the decl. If
+ the decl is external, we return NULL. If we don't, the optimizer
+ will replace the indirection with a direct call, which undoes the
+ purpose of the atable indirection. */
+static tree
+java_get_callee_fndecl (tree call_expr)
+{
+ tree method, table, element, atable_methods;
+
+ HOST_WIDE_INT index;
+
+ /* FIXME: This is disabled because we end up passing calls through
+ the PLT, and we do NOT want to do that. */
+ return NULL;
+
+ if (TREE_CODE (call_expr) != CALL_EXPR)
+ return NULL;
+ method = CALL_EXPR_FN (call_expr);
+ STRIP_NOPS (method);
+ if (TREE_CODE (method) != ARRAY_REF)
+ return NULL;
+ table = TREE_OPERAND (method, 0);
+ if (! DECL_LANG_SPECIFIC(table)
+ || !DECL_OWNER (table)
+ || TYPE_ATABLE_DECL (DECL_OWNER (table)) != table)
+ return NULL;
+
+ atable_methods = TYPE_ATABLE_METHODS (DECL_OWNER (table));
+ index = TREE_INT_CST_LOW (TREE_OPERAND (method, 1));
+
+ /* FIXME: Replace this for loop with a hash table lookup. */
+ for (element = atable_methods; element; element = TREE_CHAIN (element))
+ {
+ if (index == 1)
+ {
+ tree purpose = TREE_PURPOSE (element);
+ if (TREE_CODE (purpose) == FUNCTION_DECL
+ && ! DECL_EXTERNAL (purpose))
+ return purpose;
+ else
+ return NULL;
+ }
+ --index;
+ }
- return -1;
+ return NULL;
+}
+
+
+/* Clear the binding stack. */
+static void
+java_clear_binding_stack (void)
+{
+ while (!global_bindings_p ())
+ poplevel (0, 0, 0);
}
#include "gt-java-lang.h"
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