/* Some code common to C and ObjC front ends.
- Copyright (C) 2001 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2002 Free Software Foundation, Inc.
This file is part of GCC.
#include "config.h"
#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
#include "tree.h"
#include "rtl.h"
#include "insn-config.h"
#include "tree-inline.h"
#include "varray.h"
#include "ggc.h"
+#include "langhooks.h"
+#include "target.h"
+#include "cgraph.h"
-static int c_tree_printer PARAMS ((output_buffer *));
+static bool c_tree_printer PARAMS ((output_buffer *, text_info *));
static tree inline_forbidden_p PARAMS ((tree *, int *, void *));
static void expand_deferred_fns PARAMS ((void));
static tree start_cdtor PARAMS ((int));
static void finish_cdtor PARAMS ((tree));
-static varray_type deferred_fns;
+static GTY(()) varray_type deferred_fns;
int
c_missing_noreturn_ok_p (decl)
{
/* We cannot inline functions that take a variable number of
arguments. */
- case BUILT_IN_VARARGS_START:
+ case BUILT_IN_VA_START:
case BUILT_IN_STDARG_START:
#if 0
/* Functions that need information about the address of the
/* We will not inline a function which uses computed goto. The
addresses of its local labels, which may be tucked into
global storage, are of course not constant across
- instantiations, which causes unexpected behaviour. */
+ instantiations, which causes unexpected behavior. */
if (TREE_CODE (t) != LABEL_DECL)
return node;
break;
+ case RECORD_TYPE:
+ case UNION_TYPE:
+ /* We cannot inline a function of the form
+
+ void F (int i) { struct S { int ar[i]; } s; }
+
+ Attempting to do so produces a catch-22 in tree-inline.c.
+ If walk_tree examines the TYPE_FIELDS chain of RECORD_TYPE/
+ UNION_TYPE nodes, then it goes into infinite recursion on a
+ structure containing a pointer to its own type. If it doesn't,
+ then the type node for S doesn't get adjusted properly when
+ F is inlined, and we abort in find_function_data. */
+ for (t = TYPE_FIELDS (node); t; t = TREE_CHAIN (t))
+ if (variably_modified_type_p (TREE_TYPE (t)))
+ return node;
+
default:
break;
}
tree fn = *fnp;
tree t;
- if (optimize == 0
+ if (flag_really_no_inline
&& lookup_attribute ("always_inline", DECL_ATTRIBUTES (fn)) == NULL)
return 1;
+ /* Don't auto-inline anything that might not be bound within
+ this unit of translation. */
+ if (!DECL_DECLARED_INLINE_P (fn) && !(*targetm.binds_local_p) (fn))
+ goto cannot_inline;
+
if (! function_attribute_inlinable_p (fn))
- {
- DECL_UNINLINABLE (fn) = 1;
- return 1;
- }
+ goto cannot_inline;
/* If a function has pending sizes, we must not defer its
compilation, and we can't inline it as a tree. */
put_pending_sizes (t);
if (t)
- {
- DECL_UNINLINABLE (fn) = 1;
- return 1;
- }
+ goto cannot_inline;
}
if (DECL_CONTEXT (fn))
/* If a nested function has pending sizes, we may have already
saved them. */
if (DECL_LANG_SPECIFIC (fn)->pending_sizes)
- {
- DECL_UNINLINABLE (fn) = 1;
- return 1;
- }
+ goto cannot_inline;
}
else
{
}
if (walk_tree (&DECL_SAVED_TREE (fn), inline_forbidden_p, fn, NULL))
- {
- DECL_UNINLINABLE (fn) = 1;
- return 1;
- }
+ goto cannot_inline;
return 0;
+
+ cannot_inline:
+ DECL_UNINLINABLE (fn) = 1;
+ return 1;
+}
+
+/* Called from check_global_declarations. */
+
+bool
+c_warn_unused_global_decl (decl)
+ tree decl;
+{
+ if (TREE_CODE (decl) == FUNCTION_DECL && DECL_DECLARED_INLINE_P (decl))
+ return false;
+ if (DECL_IN_SYSTEM_HEADER (decl))
+ return false;
+
+ return true;
}
/* Initialization common to C and Objective-C front ends. */
-const char *
-c_objc_common_init (filename)
- const char *filename;
+bool
+c_objc_common_init ()
{
- c_init_decl_processing ();
+ static const enum tree_code stmt_codes[] = {
+ c_common_stmt_codes
+ };
- filename = c_common_init (filename);
+ INIT_STATEMENT_CODES (stmt_codes);
- lang_unsafe_for_reeval = c_unsafe_for_reeval;
+ c_init_decl_processing ();
+
+ if (c_common_init () == false)
+ return false;
- save_lang_status = &push_c_function_context;
- restore_lang_status = &pop_c_function_context;
- mark_lang_status = &mark_c_function_context;
- lang_expand_expr = c_expand_expr;
lang_expand_decl_stmt = c_expand_decl_stmt;
/* These were not defined in the Objective-C front end, but I'm
}
VARRAY_TREE_INIT (deferred_fns, 32, "deferred_fns");
- ggc_add_tree_varray_root (&deferred_fns, 1);
- return filename;
+ return true;
}
/* Register a function tree, so that its optimization and conversion
}
}
- VARRAY_FREE (deferred_fns);
+ deferred_fns = 0;
}
static tree
RECHAIN_STMTS (body, COMPOUND_BODY (body));
- finish_function (0);
+ finish_function (0, 0);
}
/* Called at end of parsing, but before end-of-file processing. */
void
c_objc_common_finish_file ()
{
- expand_deferred_fns ();
+ if (pch_file)
+ c_common_write_pch ();
+
+ if (flag_unit_at_a_time)
+ {
+ cgraph_finalize_compilation_unit ();
+ cgraph_optimize ();
+ }
+ else
+ expand_deferred_fns ();
if (static_ctors)
{
by the C++ front-end.
Please notice when called, the `%' part was already skipped by the
diagnostic machinery. */
-static int
-c_tree_printer (buffer)
+static bool
+c_tree_printer (buffer, text)
output_buffer *buffer;
+ text_info *text;
{
- tree t = va_arg (output_buffer_format_args (buffer), tree);
+ tree t = va_arg (*text->args_ptr, tree);
- switch (*output_buffer_text_cursor (buffer))
+ switch (*text->format_spec)
{
case 'D':
case 'F':
case 'T':
{
const char *n = DECL_NAME (t)
- ? (*decl_printable_name) (t, 2)
+ ? (*lang_hooks.decl_printable_name) (t, 2)
: "({anonymous})";
output_add_string (buffer, n);
}
- return 1;
+ return true;
default:
- return 0;
+ return false;
}
}
+
+#include "gt-c-objc-common.h"
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