Check in gcc sources for prebuilt toolchains in Eclair.

1 files changed, 1058 insertions, 0 deletions

diff --git a/gcc-4.2.1/gcc/java/lang.c b/gcc-4.2.1/gcc/java/lang.c
new file mode 100644
index 000000000..6344c3c87
--- /dev/null
+++ b/gcc-4.2.1/gcc/java/lang.c
@@ -0,0 +1,1058 @@
+/* Java(TM) language-specific utility routines.
+   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+   Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+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.
+
+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 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.
+The Free Software Foundation is independent of Sun Microsystems, Inc.  */
+
+/* Hacked by Per Bothner <bothner@cygnus.com> February 1996. */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "tree.h"
+#include "input.h"
+#include "rtl.h"
+#include "expr.h"
+#include "java-tree.h"
+#include "jcf.h"
+#include "toplev.h"
+#include "langhooks.h"
+#include "langhooks-def.h"
+#include "flags.h"
+#include "ggc.h"
+#include "diagnostic.h"
+#include "tree-inline.h"
+#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_can_use_bit_fields_p (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"
+#endif
+
+/* Table indexed by tree code giving a string containing a character
+   classifying the tree code.  Possibilities are
+   t, d, s, c, r, <, 1 and 2.  See java/java-tree.def for details.  */
+
+#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
+
+const enum tree_code_class tree_code_type[] = {
+#include "tree.def"
+  tcc_exceptional,
+#include "java-tree.def"
+};
+#undef DEFTREECODE
+
+/* Table indexed by tree code giving number of expression
+   operands beyond the fixed part of the node structure.
+   Not used for types or decls.  */
+
+#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
+
+const unsigned char tree_code_length[] = {
+#include "tree.def"
+  0,
+#include "java-tree.def"
+};
+#undef DEFTREECODE
+
+/* Names of tree components.
+   Used for printing out the tree and error messages.  */
+#define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
+
+const char *const tree_code_name[] = {
+#include "tree.def"
+  "@@dummy",
+#include "java-tree.def"
+};
+#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;
+
+const char *resource_name;
+
+/* When nonzero, -Wall was turned on.  */
+int flag_wall = 0;
+
+/* The encoding of the source file.  */
+const char *current_encoding = NULL;
+
+/* 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.  */
+/* FIXME: Make this work with gimplify.  */
+/* int flag_optimize_sci = 0;  */
+
+/* Don't attempt to verify invocations.  */
+int flag_verify_invocations = 0; 
+
+/* When nonzero, print extra version information.  */
+static int v_flag = 0;
+
+JCF *current_jcf;
+
+/* Variable controlling how dependency tracking is enabled in
+   java_init.  */
+static int dependency_tracking = 0;
+
+/* Flag values for DEPENDENCY_TRACKING.  */
+#define DEPEND_SET_FILE 1
+#define DEPEND_ENABLE   2
+#define DEPEND_TARGET_SET 4
+#define DEPEND_FILE_ALREADY_SET 8
+
+struct language_function GTY(())
+{
+  int unused;
+};
+
+#undef LANG_HOOKS_NAME
+#define LANG_HOOKS_NAME "GNU Java"
+#undef LANG_HOOKS_INIT
+#define LANG_HOOKS_INIT java_init
+#undef LANG_HOOKS_FINISH
+#define LANG_HOOKS_FINISH java_finish
+#undef LANG_HOOKS_INIT_OPTIONS
+#define LANG_HOOKS_INIT_OPTIONS java_init_options
+#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_MARK_ADDRESSABLE
+#define LANG_HOOKS_MARK_ADDRESSABLE java_mark_addressable
+#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
+
+#undef LANG_HOOKS_DECL_OK_FOR_SIBCALL
+#define LANG_HOOKS_DECL_OK_FOR_SIBCALL java_decl_ok_for_sibcall
+
+#undef LANG_HOOKS_GET_CALLEE_FNDECL
+#define LANG_HOOKS_GET_CALLEE_FNDECL java_get_callee_fndecl
+
+#undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION
+#define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION java_expand_body
+
+#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_handle_option (size_t scode, const char *arg, int value)
+{
+  enum opt_code code = (enum opt_code) scode;
+
+  switch (code)
+    {
+    case OPT_I:
+      jcf_path_include_arg (arg);
+      break;
+
+    case OPT_M:
+      jcf_dependency_init (1);
+      dependency_tracking |= DEPEND_ENABLE;
+      break;
+
+    case OPT_MD_:
+      jcf_dependency_init (1);
+      dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
+      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_ENABLE;
+      break;
+
+    case OPT_MMD_:
+      jcf_dependency_init (0);
+      dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
+      break;
+
+    case OPT_MP:
+      jcf_dependency_print_dummies ();
+      break;
+
+    case OPT_MT:
+      jcf_dependency_set_target (arg);
+      dependency_tracking |= DEPEND_TARGET_SET;
+      break;
+
+    case OPT_Wall:
+      flag_wall = value;
+      flag_redundant = value;
+      flag_extraneous_semicolon = value;
+      /* When -Wall given, enable -Wunused.  We do this because the C
+	 compiler does it, and people expect it.  */
+      set_Wunused (value);
+      break;
+
+    case OPT_fenable_assertions_:
+      add_enable_assert (arg, value);
+      break;
+
+    case OPT_fenable_assertions:
+      add_enable_assert ("", value);
+      break;
+
+    case OPT_fdisable_assertions_:
+      add_enable_assert (arg, !value);
+      break;
+
+    case OPT_fdisable_assertions:
+      add_enable_assert ("", !value);
+      break;
+
+    case OPT_fassume_compiled_:
+      add_assume_compiled (arg, !value);
+      break;
+
+    case OPT_fassume_compiled:
+      add_assume_compiled ("", !value);
+      break;
+
+    case OPT_fbootclasspath_:
+      jcf_path_bootclasspath_arg (arg);
+      break;
+
+    case OPT_fclasspath_:
+    case OPT_fCLASSPATH_:
+      jcf_path_classpath_arg (arg);
+      break;
+
+    case OPT_fcompile_resource_:
+      resource_name = arg;
+      break;
+
+    case OPT_fdump_:
+      if (!dump_switch_p (arg))
+	return 0;
+      break;
+
+    case OPT_fencoding_:
+      current_encoding = arg;
+      break;
+
+    case OPT_fextdirs_:
+      jcf_path_extdirs_arg (arg);
+      break;
+
+    case OPT_foutput_class_dir_:
+      jcf_write_base_directory = arg;
+      break;
+
+    case OPT_version:
+      v_flag = 1;
+      break;
+      
+    default:
+      if (cl_options[code].flags & CL_Java)
+	break;
+      gcc_unreachable ();
+    }
+
+  return 1;
+}
+
+/* Global open file.  */
+FILE *finput;
+
+static bool
+java_init (void)
+{
+#if 0
+  extern int flag_minimal_debug;
+  flag_minimal_debug = 0;
+#endif
+
+  /* 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;
+
+  /* Force minimum function alignment if g++ uses the least significant
+     bit of function pointers to store the virtual bit. This is required
+     to keep vtables compatible.  */
+  if (TARGET_PTRMEMFUNC_VBIT_LOCATION == ptrmemfunc_vbit_in_pfn
+      && force_align_functions_log < 1)
+    force_align_functions_log = 1;
+
+  jcf_path_seal (v_flag);
+
+  java_init_decl_processing ();
+
+  using_eh_for_cleanups ();
+
+  return true;
+}
+
+static void
+java_finish (void)
+{
+  jcf_dependency_write ();
+}
+
+/* Buffer used by lang_printable_name. */
+static char *decl_buf = NULL;
+
+/* Allocated size of decl_buf. */
+static int decl_buflen = 0;
+
+/* Length of used part of decl_buf;  position for next character. */
+static int decl_bufpos = 0;
+
+/* Append the string STR to decl_buf.
+   It length is given by LEN;  -1 means the string is nul-terminated. */
+
+static void
+put_decl_string (const char *str, int len)
+{
+  if (len < 0)
+    len = strlen (str);
+  if (decl_bufpos + len >= decl_buflen)
+    {
+      if (decl_buf == NULL)
+	{
+	  decl_buflen = len + 100;
+	  decl_buf = XNEWVEC (char, decl_buflen);
+	}
+      else
+	{
+	  decl_buflen *= 2;
+	  decl_buf = xrealloc (decl_buf, decl_buflen);
+	}
+    }
+  strcpy (decl_buf + decl_bufpos, str);
+  decl_bufpos += len;
+}
+
+/* Append to decl_buf a printable name for NODE. */
+
+static void
+put_decl_node (tree node)
+{
+  int was_pointer = 0;
+  if (TREE_CODE (node) == POINTER_TYPE)
+    {
+      node = TREE_TYPE (node);
+      was_pointer = 1;
+    }
+  if (DECL_P (node) && DECL_NAME (node) != NULL_TREE)
+    {
+      if (TREE_CODE (node) == FUNCTION_DECL)
+	{
+	  /* We want to print the type the DECL belongs to. We don't do
+	     that when we handle constructors. */
+	  if (! DECL_CONSTRUCTOR_P (node)
+	      && ! DECL_ARTIFICIAL (node) && DECL_CONTEXT (node))
+	    {
+	      put_decl_node (TYPE_NAME (DECL_CONTEXT (node)));
+	      put_decl_string (".", 1);
+	    }
+	  if (! DECL_CONSTRUCTOR_P (node))
+	    put_decl_node (DECL_NAME (node));
+	  if (TREE_TYPE (node) != NULL_TREE)
+	    {
+	      int i = 0;
+	      tree args = TYPE_ARG_TYPES (TREE_TYPE (node));
+	      if (TREE_CODE (TREE_TYPE (node)) == METHOD_TYPE)
+		args = TREE_CHAIN (args);
+	      put_decl_string ("(", 1);
+	      for ( ; args != end_params_node;  args = TREE_CHAIN (args), i++)
+		{
+		  if (i > 0)
+		    put_decl_string (",", 1);
+		  put_decl_node (TREE_VALUE (args));
+		}
+	      put_decl_string (")", 1);
+	    }
+	}
+      else
+	put_decl_node (DECL_NAME (node));
+    }
+  else if (TYPE_P (node) && TYPE_NAME (node) != NULL_TREE)
+    {
+      if (TREE_CODE (node) == RECORD_TYPE && TYPE_ARRAY_P (node))
+	{
+	  put_decl_node (TYPE_ARRAY_ELEMENT (node));
+	  put_decl_string("[]", 2);
+	}
+      else if (node == promoted_byte_type_node)
+	put_decl_string ("byte", 4);
+      else if (node == promoted_short_type_node)
+	put_decl_string ("short", 5);
+      else if (node == promoted_char_type_node)
+	put_decl_string ("char", 4);
+      else if (node == promoted_boolean_type_node)
+	put_decl_string ("boolean", 7);
+      else if (node == void_type_node && was_pointer)
+	put_decl_string ("null", 4);
+      else
+	put_decl_node (TYPE_NAME (node));
+    }
+  else if (TREE_CODE (node) == IDENTIFIER_NODE)
+    put_decl_string (IDENTIFIER_POINTER (node), IDENTIFIER_LENGTH (node));
+  else
+    put_decl_string ("<unknown>", -1);
+}
+
+/* Return a user-friendly name for DECL.
+   The resulting string is only valid until the next call.
+   The value of the hook decl_printable_name is this function,
+   which is also called directly by java_print_error_function. */
+
+const char *
+lang_printable_name (tree decl, int v)
+{
+  decl_bufpos = 0;
+  if (v == 0 && TREE_CODE (decl) == FUNCTION_DECL)
+    put_decl_node (DECL_NAME (decl));
+  else
+    put_decl_node (decl);
+  put_decl_string ("", 1);
+  return decl_buf;
+}
+
+/* Print on stderr the current class and method context.  This function
+   is the value of the hook print_error_function. */
+
+static GTY(()) tree last_error_function_context;
+static GTY(()) tree last_error_function;
+static void
+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)
+    return;
+
+  if (current_function_decl != NULL
+      && DECL_CONTEXT (current_function_decl) != last_error_function_context)
+    {
+      if (file)
+	fprintf (stderr, "%s: ", file);
+
+      last_error_function_context = DECL_CONTEXT (current_function_decl);
+      fprintf (stderr, "In class '%s':\n",
+	       lang_printable_name (last_error_function_context, 0));
+    }
+  if (last_error_function != current_function_decl)
+    {
+      if (file)
+	fprintf (stderr, "%s: ", file);
+
+      if (current_function_decl == NULL)
+	fprintf (stderr, "At top level:\n");
+      else
+	{
+	  const char *name = lang_printable_name (current_function_decl, 2);
+	  fprintf (stderr, "In %s '%s':\n",
+		   (DECL_CONSTRUCTOR_P (current_function_decl) ? "constructor"
+		    : "method"),
+		   name);
+	}
+
+      last_error_function = current_function_decl;
+    }
+
+}
+
+/* Called to install the PRINT_ERROR_FUNCTION hook differently
+   according to LEVEL. LEVEL is 1 during early parsing, when function
+   prototypes aren't fully resolved. java_print_error_function is set
+   so it doesn't print incomplete function prototypes. When LEVEL is
+   2, function prototypes are fully resolved and can be printed when
+   reporting errors.  */
+
+void
+lang_init_source (int level)
+{
+  inhibit_error_function_printing = (level == 1);
+}
+
+static unsigned int
+java_init_options (unsigned int argc ATTRIBUTE_UNUSED,
+		   const char **argv ATTRIBUTE_UNUSED)
+{
+  flag_bounds_check = 1;
+  flag_exceptions = 1;
+  flag_non_call_exceptions = 1;
+
+  /* In Java floating point operations never trap.  */
+  flag_trapping_math = 0;
+
+  /* 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;
+}
+
+static bool
+java_can_use_bit_fields_p (void)
+{
+  /* The bit-field optimizations cause problems when generating class
+     files.  */
+  return flag_emit_class_files ? false : true;
+}
+
+/* Post-switch processing.  */
+static bool
+java_post_options (const char **pfilename)
+{
+  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 (dependency_tracking)
+	{
+	  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 if (flag_emit_class_files)
+		    jcf_dependency_set_target (NULL);
+		  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 (tree decl)
+{
+  if (/* Don't change a variable array bound or initial value to a constant
+	 in a place where a variable is invalid.  */
+      current_function_decl != 0
+      && ! TREE_THIS_VOLATILE (decl)
+      && TREE_READONLY (decl)
+      && DECL_INITIAL (decl) != 0
+      && TREE_CODE (DECL_INITIAL (decl)) != ERROR_MARK
+      /* This is invalid if initial value is not constant.
+	 If it has either a function call, a memory reference,
+	 or a variable, then re-evaluating it could give different results.  */
+      && TREE_CONSTANT (DECL_INITIAL (decl))
+      /* Check for cases where this is sub-optimal, even though valid.  */
+      && TREE_CODE (DECL_INITIAL (decl)) != CONSTRUCTOR)
+    return DECL_INITIAL (decl);
+  return decl;
+}
+
+/* Walk the language specific tree nodes during inlining.  */
+
+static tree
+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, pset);	\
+      if (result)					\
+	return result;					\
+    }							\
+  while (0)
+
+  tree t = *tp;
+  if (!t)
+    return NULL_TREE;
+
+  code = TREE_CODE (t);
+  switch (code)
+    {
+    case BLOCK:
+      WALK_SUBTREE (BLOCK_EXPR_BODY (t));
+      return NULL_TREE;
+
+    case EXIT_BLOCK_EXPR:
+      *subtrees = 0;
+      return NULL_TREE;
+
+    default:
+      return NULL_TREE;
+    }
+
+  #undef WALK_SUBTREE
+}
+
+/* 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
+merge_init_test_initialization (void **entry, void *x)
+{
+  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;
+
+	case EXPR_WITH_FILE_LOCATION:
+	    {
+	      tree wfl_node = EXPR_WFL_NODE (TREE_OPERAND (t, i));
+	      dump_child ("expr", wfl_node);
+	      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 LABELED_BLOCK_EXPR:
+      dump_child ("label", LABELED_BLOCK_LABEL (t));
+      dump_child ("block", LABELED_BLOCK_BODY (t));
+      return true;
+
+    case EXIT_BLOCK_EXPR:
+      dump_child ("block", EXIT_BLOCK_LABELED_BLOCK (t));
+      return true;
+
+    case BLOCK:
+      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;
+}
+
+/* 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 = TREE_OPERAND (call_expr, 0);
+  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 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"