/* Java(TM) language-specific utility routines.
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
- 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 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)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
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, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>.
Java and all Java-based marks are trademarks or registered trademarks
of Sun Microsystems, Inc. in the United States and other countries.
#include "langhooks.h"
#include "langhooks-def.h"
#include "flags.h"
-#include "xref.h"
#include "ggc.h"
#include "diagnostic.h"
#include "tree-inline.h"
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 *, void *);
-static int java_unsafe_for_reeval (tree);
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 int java_estimate_num_insns (tree);
-static int java_start_inlining (tree);
+static bool java_decl_ok_for_sibcall (const_tree);
+static tree java_get_callee_fndecl (const_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;
-
const 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;
-
-/* When nonzero, 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 nonzero, -Wall was turned on. */
int flag_wall = 0;
-/* When nonzero, check for redundant modifier uses. */
-int flag_redundant = 0;
-
-/* When nonzero, call a library routine to do integer divisions. */
-int flag_use_divide_subroutine = 1;
-
-/* When nonzero, generate code for the Boehm GC. */
-int flag_use_boehm_gc = 0;
-
-/* When nonzero, assume the runtime uses a hash table to map an
- object to its synchronization structure. */
-int flag_hash_synchronization;
-
-/* When nonzero, permit the use of the assert keyword. */
-int flag_assert = 1;
-
-/* When nonzero, assume all native functions are implemented with
- JNI, not CNI. */
-int flag_jni = 0;
-
-/* When nonzero, warn when source file is newer than matching class
- file. */
-int flag_newer = 1;
-
-/* When nonzero, generate checks for references to NULL. */
-int flag_check_references = 0;
-
-/* The encoding of the source file. */
-const char *current_encoding = NULL;
-
-/* When nonzero, report the now deprecated empty statements. */
-int flag_extraneous_semicolon;
-
/* When nonzero, report use of deprecated classes, methods, or fields. */
int flag_deprecated = 1;
-/* When nonzero, always check for a non gcj generated classes archive. */
-int flag_force_classes_archive_check;
-
/* 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 nonzero, 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 nonzero, print extra version information. */
static int v_flag = 0;
-/* Set nonzero if the user specified -finline-functions on the command
- line. */
-int flag_really_inline = 0;
-
JCF *current_jcf;
/* Variable controlling how dependency tracking is enabled in
#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_INLINING_WALK_SUBTREES
-#define LANG_HOOKS_TREE_INLINING_WALK_SUBTREES java_tree_inlining_walk_subtrees
-
-#undef LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS
-#define LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS java_estimate_num_insns
-
-#undef LANG_HOOKS_TREE_INLINING_START_INLINING
-#define LANG_HOOKS_TREE_INLINING_START_INLINING java_start_inlining
#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_DECL_OK_FOR_SIBCALL
#define LANG_HOOKS_DECL_OK_FOR_SIBCALL java_decl_ok_for_sibcall
-#undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION
-#define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION java_expand_body
+#undef LANG_HOOKS_GET_CALLEE_FNDECL
+#define LANG_HOOKS_GET_CALLEE_FNDECL java_get_callee_fndecl
+
+#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;
switch (code)
{
- default:
- abort();
-
case OPT_I:
jcf_path_include_arg (arg);
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_Wdeprecated:
- flag_deprecated = value;
+ case OPT_fenable_assertions_:
+ add_enable_assert (arg, value);
break;
- case OPT_Wextraneous_semicolon:
- flag_extraneous_semicolon = value;
+ case OPT_fenable_assertions:
+ add_enable_assert ("", value);
break;
- case OPT_Wout_of_date:
- flag_newer = value;
+ case OPT_fdisable_assertions_:
+ add_enable_assert (arg, !value);
break;
- case OPT_Wredundant_modifiers:
- flag_redundant = value;
- break;
-
- case OPT_fassert:
- flag_assert = value;
+ case OPT_fdisable_assertions:
+ add_enable_assert ("", !value);
break;
case OPT_fassume_compiled_:
jcf_path_bootclasspath_arg (arg);
break;
- case OPT_fcheck_references:
- flag_check_references = value;
- break;
-
+ case OPT_faux_classpath:
case OPT_fclasspath_:
case OPT_fCLASSPATH_:
jcf_path_classpath_arg (arg);
return 0;
break;
- case OPT_femit_class_file:
- case OPT_femit_class_files:
- flag_emit_class_files = value;
- break;
-
case OPT_fencoding_:
- current_encoding = arg;
+ /* Nothing. */
break;
case OPT_fextdirs_:
jcf_path_extdirs_arg (arg);
break;
- case OPT_ffilelist_file:
- flag_filelist_file = value;
- break;
-
- case OPT_fforce_classes_archive_check:
- flag_force_classes_archive_check = value;
- break;
-
- case OPT_fhash_synchronization:
- flag_hash_synchronization = value;
- break;
-
- case OPT_findirect_dispatch:
- flag_indirect_dispatch = value;
- break;
-
- case OPT_finline_functions:
- flag_inline_functions = value;
- flag_really_inline = value;
- break;
-
- case OPT_fjni:
- flag_jni = value;
- break;
-
- case OPT_foptimize_static_class_initialization:
- flag_optimize_sci = value;
- break;
-
case OPT_foutput_class_dir_:
- jcf_write_base_directory = arg;
- break;
-
- case OPT_fstore_check:
- flag_store_check = value;
- break;
-
- case OPT_fuse_boehm_gc:
- flag_use_boehm_gc = value;
- break;
-
- case OPT_fuse_divide_subroutine:
- flag_use_divide_subroutine = value;
+ /* 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 ();
}
return 1;
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_inline_functions)
- flag_inline_trees = 1;
-
- /* 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;
+ if (!flag_indirect_dispatch)
+ flag_indirect_classes = false;
jcf_path_seal (v_flag);
if (decl_buf == NULL)
{
decl_buflen = len + 100;
- decl_buf = xmalloc (decl_buflen);
+ decl_buf = XNEWVEC (char, decl_buflen);
}
else
{
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 (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 (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;
}
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 (int level)
+void
+lang_init_source (int level)
{
inhibit_error_function_printing = (level == 1);
}
/* 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 possible. Function instrumentation is only
- done in the RTL level, so we disable tree inlining. */
- if (! flag_instrument_function_entry_exit)
+ /* 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_no_inline)
- flag_no_inline = 1;
- if (flag_inline_functions)
- {
- flag_inline_trees = 2;
- flag_inline_functions = 0;
- }
+ 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. */
error ("couldn't determine target name for dependency tracking");
else
{
- char *buf = xmalloc (dot - filename +
+ char *buf = XNEWVEC (char, dot - filename +
3 + sizeof (TARGET_OBJECT_SUFFIX));
strncpy (buf, filename, dot - filename);
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);
}
}
}
+#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 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,
- void *htab ATTRIBUTE_UNUSED)
-{
- enum tree_code code;
- tree result;
-
-#define WALK_SUBTREE(NODE) \
- do \
- { \
- result = walk_tree (&(NODE), func, data, htab); \
- if (result) \
- return result; \
- } \
- while (0)
-
- tree t = *tp;
- if (!t)
- return NULL_TREE;
-
- code = TREE_CODE (t);
- switch (code)
- {
- case BLOCK:
- if (BLOCK_EXPR_BODY (t))
- {
- tree *prev = &BLOCK_EXPR_BODY (*tp);
- while (*prev)
- {
- WALK_SUBTREE (*prev);
- prev = &TREE_CHAIN (*prev);
- }
- }
- return NULL_TREE;
- break;
-
- default:
- return NULL_TREE;
- }
-}
-
-/* Called from unsafe_for_reeval. */
-static int
-java_unsafe_for_reeval (tree t)
-{
- switch (TREE_CODE (t))
- {
- 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));
-
- default:
- break;
- }
-
- return -1;
-}
-
/* 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.
+ constructor for each class.
It looks something like this:
foo ()
{
boolean dummy = OtherClass.is_initialized;
-
+
...
-
+
if (! dummy)
OtherClass.initialize();
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);
- if (! n)
- abort ();
+ 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
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;
}
void
java_inlining_merge_static_initializers (tree fn, void *decl_map)
{
- htab_traverse
+ htab_traverse
(DECL_FUNCTION_INIT_TEST_TABLE (fn),
merge_init_test_initialization, decl_map);
}
{
struct treetreehash_entry *ite = (struct treetreehash_entry *) *entry;
splay_tree decl_map = (splay_tree)x;
-
- tree h = java_treetreehash_find
+
+ 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;
}
void
java_inlining_map_static_initializers (tree fn, void *decl_map)
{
- htab_traverse
+ htab_traverse
(DECL_FUNCTION_INIT_TEST_TABLE (fn),
inline_init_test_initialization, decl_map);
}
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)
{
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;
dump_child ("label", TREE_OPERAND (t, 0));
return true;
- case LABELED_BLOCK_EXPR:
- dump_child ("label", TREE_OPERAND (t, 0));
- dump_child ("block", TREE_OPERAND (t, 1));
- return true;
-
- case EXIT_BLOCK_EXPR:
- dump_child ("block", TREE_OPERAND (t, 0));
- dump_child ("val", TREE_OPERAND (t, 1));
- return true;
-
case BLOCK:
if (BLOCK_EXPR_BODY (t))
{
dump_child ("var", local);
local = next;
}
-
+
{
tree block = BLOCK_EXPR_BODY (t);
dump_child ("body", block);
}
}
return true;
-
+
case COMPOUND_EXPR:
if (!dump_flag (di, TDF_SLIM, t))
return false;
SecurityManager.getClassContext(). */
static bool
-java_decl_ok_for_sibcall (tree decl)
+java_decl_ok_for_sibcall (const_tree decl)
{
- return decl != NULL && DECL_CONTEXT (decl) == current_class;
+ return (decl != NULL && DECL_CONTEXT (decl) == output_class
+ && DECL_INLINE (decl));
}
-/* Used by estimate_num_insns. Estimate number of instructions seen
- by given statement. */
+/* 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_estimate_num_insns_1 (tree *tp, int *walk_subtrees, void *data)
+java_get_callee_fndecl (const_tree call_expr)
{
- int *count = data;
- tree x = *tp;
+ tree method, table, element, atable_methods;
- if (TYPE_P (x) || DECL_P (x))
- {
- *walk_subtrees = 0;
- return NULL;
- }
- /* Assume that constants and references counts nothing. These should
- be majorized by amount of operations amoung them we count later
- and are common target of CSE and similar optimizations. */
- if (TREE_CODE_CLASS (TREE_CODE (x)) == 'c'
- || TREE_CODE_CLASS (TREE_CODE (x)) == 'r')
+ 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;
- switch (TREE_CODE (x))
- {
- /* Reconginze assignments of large structures and constructors of
- big arrays. */
- case MODIFY_EXPR:
- case CONSTRUCTOR:
- {
- int size = int_size_in_bytes (TREE_TYPE (x));
-
- if (!size || size > MOVE_MAX_PIECES)
- *count += 10;
- else
- *count += 2 * (size + MOVE_MAX - 1) / MOVE_MAX;
- return NULL;
- }
- break;
- /* Few special cases of expensive operations. This is usefull
- to avoid inlining on functions having too many of these. */
- case TRUNC_DIV_EXPR:
- case CEIL_DIV_EXPR:
- case FLOOR_DIV_EXPR:
- case ROUND_DIV_EXPR:
- case TRUNC_MOD_EXPR:
- case CEIL_MOD_EXPR:
- case FLOOR_MOD_EXPR:
- case ROUND_MOD_EXPR:
- case RDIV_EXPR:
- case CALL_EXPR:
-
- case NEW_ARRAY_EXPR:
- case NEW_ANONYMOUS_ARRAY_EXPR:
- case NEW_CLASS_EXPR:
- *count += 10;
- break;
- /* Various containers that will produce no code themselves. */
- case INIT_EXPR:
- case TARGET_EXPR:
- case BIND_EXPR:
- case BLOCK:
- case TREE_LIST:
- case TREE_VEC:
- case IDENTIFIER_NODE:
- case PLACEHOLDER_EXPR:
- case WITH_CLEANUP_EXPR:
- case CLEANUP_POINT_EXPR:
- case NOP_EXPR:
- case VIEW_CONVERT_EXPR:
- case SAVE_EXPR:
- case UNSAVE_EXPR:
- case COMPLEX_EXPR:
- case REALPART_EXPR:
- case IMAGPART_EXPR:
- case TRY_CATCH_EXPR:
- case TRY_FINALLY_EXPR:
- case LABEL_EXPR:
- case EXIT_EXPR:
- case LABELED_BLOCK_EXPR:
- case EXIT_BLOCK_EXPR:
- case EXPR_WITH_FILE_LOCATION:
- case UNARY_PLUS_EXPR:
- case THIS_EXPR:
- case DEFAULT_EXPR:
- case TRY_EXPR:
- break;
- case CLASS_LITERAL:
- *walk_subtrees = 0;
- break;
- default:
- (*count)++;
+ 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;
-}
-/* Estimate number of instructions that will be created by expanding the body. */
-static int
-java_estimate_num_insns (tree decl)
-{
- int num = 0;
- walk_tree_without_duplicates (&DECL_SAVED_TREE (decl),
- java_estimate_num_insns_1, &num);
- return num;
+ return NULL;
}
-/* Start inlining fn. Called by the tree inliner via
- lang_hooks.tree_inlining.cannot_inline_tree_fn. */
-static int
-java_start_inlining (tree fn)
+/* Clear the binding stack. */
+static void
+java_clear_binding_stack (void)
{
- /* A java function's body doesn't have a BLOCK structure suitable
- for debug output until it is expanded. Prevent inlining functions
- that are not yet expanded. */
- return TREE_ASM_WRITTEN (fn) ? 1 : 0;
+ while (!global_bindings_p ())
+ poplevel (0, 0, 0);
}
#include "gt-java-lang.h"
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