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decl2.c (finish_file): Set at_eof to 2 after expanding ctors.

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* decl2.c (finish_file): Set at_eof to 2 after expanding ctors.
	* decl.c (expand_static_init): Make sure we don't add any after
	then.
	* decl.c (cp_finish_decl): Move intelligence about handling
	DECL_COMDAT for variables from here...
	* decl2.c (comdat_linkage): ...to here.
	(maybe_make_one_only): Tweak.
	(import_export_decl): Call comdat_linkage for variables, too.
	(finish_file): Handle template statics properly.

From-SVN: r25920
This commit is contained in:
Jason Merrill 1999-03-23 02:33:34 +00:00 committed by Jason Merrill
parent fb835c4d70
commit ea735e02ae
3 changed files with 64 additions and 42 deletions
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13
gcc/cp/ChangeLog
View File

@ -1,3 +1,16 @@
1999-03-23 Jason Merrill <jason@yorick.cygnus.com>
* decl2.c (finish_file): Set at_eof to 2 after expanding ctors.
* decl.c (expand_static_init): Make sure we don't add any after
then.
* decl.c (cp_finish_decl): Move intelligence about handling
DECL_COMDAT for variables from here...
* decl2.c (comdat_linkage): ...to here.
(maybe_make_one_only): Tweak.
(import_export_decl): Call comdat_linkage for variables, too.
(finish_file): Handle template statics properly.
1999-03-22 Mark Mitchell <mark@codesourcery.com>
* cp-tree.h (TYPE_PTRMEMFUNC_P): Use TYPE_PTRMEMFUNC_FLAG.

31
gcc/cp/decl.c
View File

@ -7774,31 +7774,9 @@ cp_finish_decl (decl, init, asmspec_tree, need_pop, flags)
else if (TREE_CODE (decl) == VAR_DECL
&& DECL_LANG_SPECIFIC (decl)
&& DECL_COMDAT (decl))
{
/* Dynamically initialized vars go into common. */
if (DECL_INITIAL (decl) == NULL_TREE
|| DECL_INITIAL (decl) == error_mark_node)
DECL_COMMON (decl) = 1;
else if (EMPTY_CONSTRUCTOR_P (DECL_INITIAL (decl)))
{
DECL_COMMON (decl) = 1;
DECL_INITIAL (decl) = error_mark_node;
}
else
{
/* Statically initialized vars are weak or comdat, if
supported. */
if (flag_weak)
make_decl_one_only (decl);
else
{
/* We can't do anything useful; leave vars for explicit
instantiation. */
DECL_EXTERNAL (decl) = 1;
DECL_NOT_REALLY_EXTERN (decl) = 0;
}
}
}
/* Set it up again; we might have set DECL_INITIAL since the
last time. */
comdat_linkage (decl);
if (TREE_CODE (decl) == VAR_DECL && DECL_VIRTUAL_P (decl))
make_decl_rtl (decl, NULL_PTR, toplev);
@ -8094,6 +8072,9 @@ expand_static_init (decl, init)
{
tree oldstatic = value_member (decl, static_aggregates);
/* If at_eof is 2, we're too late. */
my_friendly_assert (at_eof <= 1, 990323);
if (oldstatic)
{
if (TREE_PURPOSE (oldstatic) && init != NULL_TREE)

60
gcc/cp/decl2.c
View File

@ -2370,8 +2370,26 @@ comdat_linkage (decl)
{
if (flag_weak)
make_decl_one_only (decl);
else
else if (TREE_CODE (decl) == FUNCTION_DECL)
TREE_PUBLIC (decl) = 0;
else
{
if (DECL_INITIAL (decl) == 0
|| DECL_INITIAL (decl) == error_mark_node)
DECL_COMMON (decl) = 1;
else if (EMPTY_CONSTRUCTOR_P (DECL_INITIAL (decl)))
{
DECL_COMMON (decl) = 1;
DECL_INITIAL (decl) = error_mark_node;
}
else
{
/* We can't do anything useful; leave vars for explicit
instantiation. */
DECL_EXTERNAL (decl) = 1;
DECL_NOT_REALLY_EXTERN (decl) = 0;
}
}
if (DECL_LANG_SPECIFIC (decl))
DECL_COMDAT (decl) = 1;
@ -2391,14 +2409,14 @@ maybe_make_one_only (decl)
return;
/* We can't set DECL_COMDAT on functions, or finish_file will think
we can get away with not emitting them if they aren't used.
We can't use make_decl_one_only for variables, because their
DECL_INITIAL may not have been set properly yet. */
we can get away with not emitting them if they aren't used. We need
to for variables so that cp_finish_decl will update their linkage,
because their DECL_INITIAL may not have been set properly yet. */
if (TREE_CODE (decl) == FUNCTION_DECL)
make_decl_one_only (decl);
else
comdat_linkage (decl);
if (TREE_CODE (decl) == VAR_DECL && DECL_LANG_SPECIFIC (decl))
DECL_COMDAT (decl) = 1;
}
/* Set TREE_PUBLIC and/or DECL_EXTERN on the vtable DECL,
@ -2730,10 +2748,8 @@ import_export_decl (decl)
/* Templates are allowed to have internal linkage. See
[basic.link]. */
;
else if (TREE_CODE (decl) == FUNCTION_DECL)
comdat_linkage (decl);
else
DECL_COMDAT (decl) = 1;
comdat_linkage (decl);
}
else
DECL_NOT_REALLY_EXTERN (decl) = 0;
@ -3344,12 +3360,18 @@ finish_file ()
/* Done with C language context needs. */
pop_lang_context ();
/* Let expand_static_init know it's too late for more ctors. */
at_eof = 2;
/* Now write out any static class variables (which may have since
learned how to be initialized). */
while (pending_statics)
for (; pending_statics; pending_statics = TREE_CHAIN (pending_statics))
{
tree decl = TREE_VALUE (pending_statics);
if (TREE_ASM_WRITTEN (decl))
continue;
/* Output DWARF debug information. */
#ifdef DWARF_DEBUGGING_INFO
if (write_symbols == DWARF_DEBUG)
@ -3360,11 +3382,15 @@ finish_file ()
dwarf2out_decl (decl);
#endif
DECL_DEFER_OUTPUT (decl) = 0;
/* We currently handle template statics here. We ought to handle
them the same way we do template functions, i.e. only emit them if
the symbol is needed. */
import_export_decl (decl);
if (DECL_NOT_REALLY_EXTERN (decl) && ! DECL_IN_AGGR_P (decl))
DECL_EXTERNAL (decl) = 0;
rest_of_decl_compilation
(decl, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)), 1, 1);
pending_statics = TREE_CHAIN (pending_statics);
}
this_time = get_run_time ();
@ -3426,7 +3452,8 @@ finish_file ()
continue;
if (TREE_ASM_WRITTEN (decl)
|| (DECL_SAVED_INSNS (decl) == 0 && ! DECL_ARTIFICIAL (decl)))
|| (DECL_SAVED_INSNS (decl) == 0
&& ! DECL_ARTIFICIAL (decl)))
*p = TREE_CHAIN (*p);
else if (DECL_INITIAL (decl) == 0)
p = &TREE_CHAIN (*p);
@ -3475,7 +3502,8 @@ finish_file ()
}
/* Now delete from the chain of variables all virtual function tables.
We output them all ourselves, because each will be treated specially. */
We output them all ourselves, because each will be treated
specially. */
walk_vtables ((void (*) PROTO((tree, tree))) 0,
prune_vtable_vardecl);