static void
unpack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
{
DECL_DEFER_OUTPUT (expr) = (unsigned) bp_unpack_value (bp, 1);
DECL_COMMON (expr) = (unsigned) bp_unpack_value (bp, 1);
DECL_DLLIMPORT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
DECL_WEAK (expr) = (unsigned) bp_unpack_value (bp, 1);
DECL_SEEN_IN_BIND_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
DECL_COMDAT (expr) = (unsigned) bp_unpack_value (bp, 1);
DECL_VISIBILITY (expr) = (enum symbol_visibility) bp_unpack_value (bp, 2);
DECL_VISIBILITY_SPECIFIED (expr) = (unsigned) bp_unpack_value (bp, 1);
if (TREE_CODE (expr) == VAR_DECL)
{
DECL_HARD_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
DECL_IN_TEXT_SECTION (expr) = (unsigned) bp_unpack_value (bp, 1);
DECL_IN_CONSTANT_POOL (expr) = (unsigned) bp_unpack_value (bp, 1);
DECL_TLS_MODEL (expr) = (enum tls_model) bp_unpack_value (bp, 3);
}
if (VAR_OR_FUNCTION_DECL_P (expr))
{
priority_type p;
p = (priority_type) bp_unpack_var_len_unsigned (bp);
SET_DECL_INIT_PRIORITY (expr, p);
}
}
static void
pack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
{
bp_pack_value (bp, DECL_COMMON (expr), 1);
bp_pack_value (bp, DECL_DLLIMPORT_P (expr), 1);
bp_pack_value (bp, DECL_WEAK (expr), 1);
bp_pack_value (bp, DECL_SEEN_IN_BIND_EXPR_P (expr), 1);
bp_pack_value (bp, DECL_COMDAT (expr), 1);
bp_pack_value (bp, DECL_VISIBILITY (expr), 2);
bp_pack_value (bp, DECL_VISIBILITY_SPECIFIED (expr), 1);
if (TREE_CODE (expr) == VAR_DECL)
{
bp_pack_value (bp, DECL_HARD_REGISTER (expr), 1);
/* DECL_IN_TEXT_SECTION is set during final asm output only. */
bp_pack_value (bp, DECL_IN_CONSTANT_POOL (expr), 1);
}
if (TREE_CODE (expr) == FUNCTION_DECL)
{
bp_pack_value (bp, DECL_FINAL_P (expr), 1);
bp_pack_value (bp, DECL_CXX_CONSTRUCTOR_P (expr), 1);
bp_pack_value (bp, DECL_CXX_DESTRUCTOR_P (expr), 1);
}
}
void
symtab_node::make_decl_local (void)
{
rtx rtl, symbol;
/* Avoid clearing comdat_groups on comdat-local decls. */
if (TREE_PUBLIC (decl) == 0)
return;
if (TREE_CODE (decl) == VAR_DECL)
DECL_COMMON (decl) = 0;
else gcc_assert (TREE_CODE (decl) == FUNCTION_DECL);
DECL_COMDAT (decl) = 0;
DECL_WEAK (decl) = 0;
DECL_EXTERNAL (decl) = 0;
DECL_VISIBILITY_SPECIFIED (decl) = 0;
DECL_VISIBILITY (decl) = VISIBILITY_DEFAULT;
TREE_PUBLIC (decl) = 0;
if (!DECL_RTL_SET_P (decl))
return;
/* Update rtl flags. */
make_decl_rtl (decl);
rtl = DECL_RTL (decl);
if (!MEM_P (rtl))
return;
symbol = XEXP (rtl, 0);
if (GET_CODE (symbol) != SYMBOL_REF)
return;
SYMBOL_REF_WEAK (symbol) = DECL_WEAK (decl);
}
void
symtab_make_decl_local (tree decl)
{
rtx rtl, symbol;
/* Avoid clearing DECL_COMDAT_GROUP on comdat-local decls. */
if (TREE_PUBLIC (decl) == 0)
return;
if (TREE_CODE (decl) == VAR_DECL)
DECL_COMMON (decl) = 0;
else gcc_assert (TREE_CODE (decl) == FUNCTION_DECL);
if (DECL_ONE_ONLY (decl) || DECL_COMDAT (decl))
{
DECL_SECTION_NAME (decl) = 0;
DECL_COMDAT (decl) = 0;
}
DECL_COMDAT_GROUP (decl) = 0;
DECL_WEAK (decl) = 0;
DECL_EXTERNAL (decl) = 0;
DECL_VISIBILITY_SPECIFIED (decl) = 0;
DECL_VISIBILITY (decl) = VISIBILITY_DEFAULT;
TREE_PUBLIC (decl) = 0;
DECL_DLLIMPORT_P (decl) = 0;
if (!DECL_RTL_SET_P (decl))
return;
/* Update rtl flags. */
make_decl_rtl (decl);
rtl = DECL_RTL (decl);
if (!MEM_P (rtl))
return;
symbol = XEXP (rtl, 0);
if (GET_CODE (symbol) != SYMBOL_REF)
return;
SYMBOL_REF_WEAK (symbol) = DECL_WEAK (decl);
}
static void
pack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
{
bp_pack_value (bp, DECL_DEFER_OUTPUT (expr), 1);
bp_pack_value (bp, DECL_COMMON (expr), 1);
bp_pack_value (bp, DECL_DLLIMPORT_P (expr), 1);
bp_pack_value (bp, DECL_WEAK (expr), 1);
bp_pack_value (bp, DECL_SEEN_IN_BIND_EXPR_P (expr), 1);
bp_pack_value (bp, DECL_COMDAT (expr), 1);
bp_pack_value (bp, DECL_VISIBILITY (expr), 2);
bp_pack_value (bp, DECL_VISIBILITY_SPECIFIED (expr), 1);
if (TREE_CODE (expr) == VAR_DECL)
{
bp_pack_value (bp, DECL_HARD_REGISTER (expr), 1);
bp_pack_value (bp, DECL_IN_TEXT_SECTION (expr), 1);
bp_pack_value (bp, DECL_IN_CONSTANT_POOL (expr), 1);
bp_pack_value (bp, DECL_TLS_MODEL (expr), 3);
}
if (VAR_OR_FUNCTION_DECL_P (expr))
bp_pack_var_len_unsigned (bp, DECL_INIT_PRIORITY (expr));
}
static void
unpack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
{
DECL_COMMON (expr) = (unsigned) bp_unpack_value (bp, 1);
DECL_DLLIMPORT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
DECL_WEAK (expr) = (unsigned) bp_unpack_value (bp, 1);
DECL_SEEN_IN_BIND_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
DECL_COMDAT (expr) = (unsigned) bp_unpack_value (bp, 1);
DECL_VISIBILITY (expr) = (enum symbol_visibility) bp_unpack_value (bp, 2);
DECL_VISIBILITY_SPECIFIED (expr) = (unsigned) bp_unpack_value (bp, 1);
if (TREE_CODE (expr) == VAR_DECL)
{
DECL_HARD_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
DECL_IN_CONSTANT_POOL (expr) = (unsigned) bp_unpack_value (bp, 1);
}
if (TREE_CODE (expr) == FUNCTION_DECL)
{
DECL_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
DECL_CXX_CONSTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
DECL_CXX_DESTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
}
}
void
dump_symtab_base (FILE *f, symtab_node node)
{
static const char * const visibility_types[] = {
"default", "protected", "hidden", "internal"
};
fprintf (f, "%s/%i (%s)",
symtab_node_asm_name (node),
node->symbol.order,
symtab_node_name (node));
dump_addr (f, " @", (void *)node);
fprintf (f, "\n Type: %s\n", symtab_type_names[node->symbol.type]);
fprintf (f, " Visibility:");
if (node->symbol.in_other_partition)
fprintf (f, " in_other_partition");
if (node->symbol.used_from_other_partition)
fprintf (f, " used_from_other_partition");
if (node->symbol.force_output)
fprintf (f, " force_output");
if (node->symbol.resolution != LDPR_UNKNOWN)
fprintf (f, " %s",
ld_plugin_symbol_resolution_names[(int)node->symbol.resolution]);
if (TREE_ASM_WRITTEN (node->symbol.decl))
fprintf (f, " asm_written");
if (DECL_EXTERNAL (node->symbol.decl))
fprintf (f, " external");
if (TREE_PUBLIC (node->symbol.decl))
fprintf (f, " public");
if (DECL_COMMON (node->symbol.decl))
fprintf (f, " common");
if (DECL_WEAK (node->symbol.decl))
fprintf (f, " weak");
if (DECL_DLLIMPORT_P (node->symbol.decl))
fprintf (f, " dll_import");
if (DECL_COMDAT (node->symbol.decl))
fprintf (f, " comdat");
if (DECL_COMDAT_GROUP (node->symbol.decl))
fprintf (f, " comdat_group:%s",
IDENTIFIER_POINTER (DECL_COMDAT_GROUP (node->symbol.decl)));
if (DECL_ONE_ONLY (node->symbol.decl))
fprintf (f, " one_only");
if (DECL_SECTION_NAME (node->symbol.decl))
fprintf (f, " section_name:%s",
TREE_STRING_POINTER (DECL_SECTION_NAME (node->symbol.decl)));
if (DECL_VISIBILITY_SPECIFIED (node->symbol.decl))
fprintf (f, " visibility_specified");
if (DECL_VISIBILITY (node->symbol.decl))
fprintf (f, " visibility:%s",
visibility_types [DECL_VISIBILITY (node->symbol.decl)]);
if (DECL_VIRTUAL_P (node->symbol.decl))
fprintf (f, " virtual");
if (DECL_ARTIFICIAL (node->symbol.decl))
fprintf (f, " artificial");
if (TREE_CODE (node->symbol.decl) == FUNCTION_DECL)
{
if (DECL_STATIC_CONSTRUCTOR (node->symbol.decl))
fprintf (f, " constructor");
if (DECL_STATIC_DESTRUCTOR (node->symbol.decl))
fprintf (f, " destructor");
}
fprintf (f, "\n");
if (node->symbol.same_comdat_group)
fprintf (f, " Same comdat group as: %s/%i\n",
symtab_node_asm_name (node->symbol.same_comdat_group),
node->symbol.same_comdat_group->symbol.order);
if (node->symbol.next_sharing_asm_name)
fprintf (f, " next sharing asm name: %i\n",
node->symbol.next_sharing_asm_name->symbol.order);
if (node->symbol.previous_sharing_asm_name)
fprintf (f, " previous sharing asm name: %i\n",
node->symbol.previous_sharing_asm_name->symbol.order);
if (node->symbol.address_taken)
fprintf (f, " Address is taken.\n");
if (node->symbol.aux)
{
fprintf (f, " Aux:");
dump_addr (f, " @", (void *)node->symbol.aux);
}
fprintf (f, " References: ");
ipa_dump_references (f, &node->symbol.ref_list);
fprintf (f, " Referring: ");
ipa_dump_referring (f, &node->symbol.ref_list);
}
/* Add code:
__thread gcov* __gcov_indirect_call_counters; // pointer to actual counter
__thread void* __gcov_indirect_call_callee; // actual callee address
__thread int __gcov_function_counter; // time profiler function counter
*/
static void
init_ic_make_global_vars (void)
{
tree gcov_type_ptr;
ptr_void = build_pointer_type (void_type_node);
/* Workaround for binutils bug 14342. Once it is fixed, remove lto path. */
if (flag_lto)
{
ic_void_ptr_var
= build_decl (UNKNOWN_LOCATION, VAR_DECL,
get_identifier ("__gcov_indirect_call_callee_ltopriv"),
ptr_void);
TREE_PUBLIC (ic_void_ptr_var) = 1;
DECL_COMMON (ic_void_ptr_var) = 1;
DECL_VISIBILITY (ic_void_ptr_var) = VISIBILITY_HIDDEN;
DECL_VISIBILITY_SPECIFIED (ic_void_ptr_var) = true;
}
else
{
ic_void_ptr_var
= build_decl (UNKNOWN_LOCATION, VAR_DECL,
get_identifier (
(PARAM_VALUE (PARAM_INDIR_CALL_TOPN_PROFILE) ?
"__gcov_indirect_call_topn_callee" :
"__gcov_indirect_call_callee")),
ptr_void);
TREE_PUBLIC (ic_void_ptr_var) = 1;
DECL_EXTERNAL (ic_void_ptr_var) = 1;
}
TREE_STATIC (ic_void_ptr_var) = 1;
DECL_ARTIFICIAL (ic_void_ptr_var) = 1;
DECL_INITIAL (ic_void_ptr_var) = NULL;
if (targetm.have_tls)
set_decl_tls_model (ic_void_ptr_var, decl_default_tls_model (ic_void_ptr_var));
varpool_node::finalize_decl (ic_void_ptr_var);
gcov_type_ptr = build_pointer_type (get_gcov_type ());
/* Workaround for binutils bug 14342. Once it is fixed, remove lto path. */
if (flag_lto)
{
ic_gcov_type_ptr_var
= build_decl (UNKNOWN_LOCATION, VAR_DECL,
get_identifier ("__gcov_indirect_call_counters_ltopriv"),
gcov_type_ptr);
TREE_PUBLIC (ic_gcov_type_ptr_var) = 1;
DECL_COMMON (ic_gcov_type_ptr_var) = 1;
DECL_VISIBILITY (ic_gcov_type_ptr_var) = VISIBILITY_HIDDEN;
DECL_VISIBILITY_SPECIFIED (ic_gcov_type_ptr_var) = true;
}
else
{
ic_gcov_type_ptr_var
= build_decl (UNKNOWN_LOCATION, VAR_DECL,
get_identifier (
(PARAM_VALUE (PARAM_INDIR_CALL_TOPN_PROFILE) ?
"__gcov_indirect_call_topn_counters" :
"__gcov_indirect_call_counters")),
gcov_type_ptr);
TREE_PUBLIC (ic_gcov_type_ptr_var) = 1;
DECL_EXTERNAL (ic_gcov_type_ptr_var) = 1;
}
TREE_STATIC (ic_gcov_type_ptr_var) = 1;
DECL_ARTIFICIAL (ic_gcov_type_ptr_var) = 1;
DECL_INITIAL (ic_gcov_type_ptr_var) = NULL;
if (targetm.have_tls)
set_decl_tls_model (ic_gcov_type_ptr_var, decl_default_tls_model (ic_gcov_type_ptr_var));
varpool_node::finalize_decl (ic_gcov_type_ptr_var);
}
void
use_thunk (tree thunk_fndecl, bool emit_p)
{
tree a, t, function, alias;
tree virtual_offset;
HOST_WIDE_INT fixed_offset, virtual_value;
bool this_adjusting = DECL_THIS_THUNK_P (thunk_fndecl);
/* We should have called finish_thunk to give it a name. */
gcc_assert (DECL_NAME (thunk_fndecl));
/* We should never be using an alias, always refer to the
aliased thunk. */
gcc_assert (!THUNK_ALIAS (thunk_fndecl));
if (TREE_ASM_WRITTEN (thunk_fndecl))
return;
function = THUNK_TARGET (thunk_fndecl);
if (DECL_RESULT (thunk_fndecl))
/* We already turned this thunk into an ordinary function.
There's no need to process this thunk again. */
return;
if (DECL_THUNK_P (function))
/* The target is itself a thunk, process it now. */
use_thunk (function, emit_p);
/* Thunks are always addressable; they only appear in vtables. */
TREE_ADDRESSABLE (thunk_fndecl) = 1;
/* Figure out what function is being thunked to. It's referenced in
this translation unit. */
TREE_ADDRESSABLE (function) = 1;
mark_used (function);
if (!emit_p)
return;
if (TARGET_USE_LOCAL_THUNK_ALIAS_P (function))
alias = make_alias_for_thunk (function);
else
alias = function;
fixed_offset = THUNK_FIXED_OFFSET (thunk_fndecl);
virtual_offset = THUNK_VIRTUAL_OFFSET (thunk_fndecl);
if (virtual_offset)
{
if (!this_adjusting)
virtual_offset = BINFO_VPTR_FIELD (virtual_offset);
virtual_value = tree_low_cst (virtual_offset, /*pos=*/0);
gcc_assert (virtual_value);
}
else
virtual_value = 0;
/* And, if we need to emit the thunk, it's used. */
mark_used (thunk_fndecl);
/* This thunk is actually defined. */
DECL_EXTERNAL (thunk_fndecl) = 0;
/* The linkage of the function may have changed. FIXME in linkage
rewrite. */
TREE_PUBLIC (thunk_fndecl) = TREE_PUBLIC (function);
DECL_VISIBILITY (thunk_fndecl) = DECL_VISIBILITY (function);
DECL_VISIBILITY_SPECIFIED (thunk_fndecl)
= DECL_VISIBILITY_SPECIFIED (function);
if (DECL_ONE_ONLY (function))
make_decl_one_only (thunk_fndecl);
if (flag_syntax_only)
{
TREE_ASM_WRITTEN (thunk_fndecl) = 1;
return;
}
push_to_top_level ();
if (TARGET_USE_LOCAL_THUNK_ALIAS_P (function)
&& targetm.have_named_sections)
{
resolve_unique_section (function, 0, flag_function_sections);
if (DECL_SECTION_NAME (function) != NULL && DECL_ONE_ONLY (function))
{
resolve_unique_section (thunk_fndecl, 0, flag_function_sections);
/* Output the thunk into the same section as function. */
DECL_SECTION_NAME (thunk_fndecl) = DECL_SECTION_NAME (function);
}
}
/* The back-end expects DECL_INITIAL to contain a BLOCK, so we
create one. */
DECL_INITIAL (thunk_fndecl) = make_node (BLOCK);
/* Set up cloned argument trees for the thunk. */
t = NULL_TREE;
for (a = DECL_ARGUMENTS (function); a; a = TREE_CHAIN (a))
{
tree x = copy_node (a);
TREE_CHAIN (x) = t;
DECL_CONTEXT (x) = thunk_fndecl;
SET_DECL_RTL (x, NULL_RTX);
DECL_HAS_VALUE_EXPR_P (x) = 0;
t = x;
}
a = nreverse (t);
DECL_ARGUMENTS (thunk_fndecl) = a;
BLOCK_VARS (DECL_INITIAL (thunk_fndecl)) = a;
if (this_adjusting
&& targetm.asm_out.can_output_mi_thunk (thunk_fndecl, fixed_offset,
virtual_value, alias))
{
const char *fnname;
current_function_decl = thunk_fndecl;
DECL_RESULT (thunk_fndecl)
= build_decl (RESULT_DECL, 0, integer_type_node);
fnname = XSTR (XEXP (DECL_RTL (thunk_fndecl), 0), 0);
init_function_start (thunk_fndecl);
current_function_is_thunk = 1;
assemble_start_function (thunk_fndecl, fnname);
targetm.asm_out.output_mi_thunk (asm_out_file, thunk_fndecl,
fixed_offset, virtual_value, alias);
assemble_end_function (thunk_fndecl, fnname);
init_insn_lengths ();
current_function_decl = 0;
cfun = 0;
TREE_ASM_WRITTEN (thunk_fndecl) = 1;
}
else
{
/* If this is a covariant thunk, or we don't have the necessary
code for efficient thunks, generate a thunk function that
just makes a call to the real function. Unfortunately, this
doesn't work for varargs. */
if (varargs_function_p (function))
error ("generic thunk code fails for method %q#D which uses %<...%>",
function);
DECL_RESULT (thunk_fndecl) = NULL_TREE;
start_preparsed_function (thunk_fndecl, NULL_TREE, SF_PRE_PARSED);
/* We don't bother with a body block for thunks. */
/* There's no need to check accessibility inside the thunk body. */
push_deferring_access_checks (dk_no_check);
t = a;
if (this_adjusting)
t = thunk_adjust (t, /*this_adjusting=*/1,
fixed_offset, virtual_offset);
/* Build up the call to the real function. */
t = tree_cons (NULL_TREE, t, NULL_TREE);
for (a = TREE_CHAIN (a); a; a = TREE_CHAIN (a))
t = tree_cons (NULL_TREE, a, t);
t = nreverse (t);
t = build_call (alias, t);
CALL_FROM_THUNK_P (t) = 1;
if (VOID_TYPE_P (TREE_TYPE (t)))
finish_expr_stmt (t);
else
{
if (!this_adjusting)
{
tree cond = NULL_TREE;
if (TREE_CODE (TREE_TYPE (t)) == POINTER_TYPE)
{
/* If the return type is a pointer, we need to
protect against NULL. We know there will be an
adjustment, because that's why we're emitting a
thunk. */
t = save_expr (t);
cond = cp_convert (boolean_type_node, t);
}
t = thunk_adjust (t, /*this_adjusting=*/0,
fixed_offset, virtual_offset);
if (cond)
t = build3 (COND_EXPR, TREE_TYPE (t), cond, t,
cp_convert (TREE_TYPE (t), integer_zero_node));
}
if (IS_AGGR_TYPE (TREE_TYPE (t)))
t = build_cplus_new (TREE_TYPE (t), t);
finish_return_stmt (t);
}
/* Since we want to emit the thunk, we explicitly mark its name as
referenced. */
mark_decl_referenced (thunk_fndecl);
/* But we don't want debugging information about it. */
DECL_IGNORED_P (thunk_fndecl) = 1;
/* Re-enable access control. */
pop_deferring_access_checks ();
thunk_fndecl = finish_function (0);
tree_lowering_passes (thunk_fndecl);
expand_body (thunk_fndecl);
}
pop_from_top_level ();
}
bool
maybe_clone_body (tree fn)
{
tree clone;
bool first = true;
/* APPLE LOCAL begin ARM structor thunks */
tree clone_to_call;
struct clone_info info;
/* APPLE LOCAL end ARM structor thunks */
/* We only clone constructors and destructors. */
if (!DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (fn)
&& !DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (fn))
return 0;
/* Emit the DWARF1 abstract instance. */
(*debug_hooks->deferred_inline_function) (fn);
/* APPLE LOCAL begin ARM structor thunks */
/* Figure out whether we can use the 'thunk' implementation,
and if so on which clones. */
info.next_clone = 0;
info.which_thunks_ok = compute_use_thunks (fn);
/* APPLE LOCAL end ARM structor thunks */
/* We know that any clones immediately follow FN in the TYPE_METHODS
list. */
push_to_top_level ();
FOR_EACH_CLONE (clone, fn)
{
tree parm;
tree clone_parm;
int parmno;
splay_tree decl_map;
/* Update CLONE's source position information to match FN's. */
DECL_SOURCE_LOCATION (clone) = DECL_SOURCE_LOCATION (fn);
DECL_INLINE (clone) = DECL_INLINE (fn);
DECL_DECLARED_INLINE_P (clone) = DECL_DECLARED_INLINE_P (fn);
/* LLVM LOCAL begin inlinehint attribute */
DECL_EXPLICIT_INLINE_P (clone) = DECL_EXPLICIT_INLINE_P (fn);
/* LLVM LOCAL end inlinehint attribute */
DECL_COMDAT (clone) = DECL_COMDAT (fn);
DECL_WEAK (clone) = DECL_WEAK (fn);
DECL_ONE_ONLY (clone) = DECL_ONE_ONLY (fn);
DECL_SECTION_NAME (clone) = DECL_SECTION_NAME (fn);
DECL_USE_TEMPLATE (clone) = DECL_USE_TEMPLATE (fn);
DECL_EXTERNAL (clone) = DECL_EXTERNAL (fn);
DECL_INTERFACE_KNOWN (clone) = DECL_INTERFACE_KNOWN (fn);
DECL_NOT_REALLY_EXTERN (clone) = DECL_NOT_REALLY_EXTERN (fn);
TREE_PUBLIC (clone) = TREE_PUBLIC (fn);
DECL_VISIBILITY (clone) = DECL_VISIBILITY (fn);
DECL_VISIBILITY_SPECIFIED (clone) = DECL_VISIBILITY_SPECIFIED (fn);
/* Adjust the parameter names and locations. */
parm = DECL_ARGUMENTS (fn);
clone_parm = DECL_ARGUMENTS (clone);
/* Update the `this' parameter, which is always first. */
update_cloned_parm (parm, clone_parm, first);
parm = TREE_CHAIN (parm);
clone_parm = TREE_CHAIN (clone_parm);
if (DECL_HAS_IN_CHARGE_PARM_P (fn))
parm = TREE_CHAIN (parm);
if (DECL_HAS_VTT_PARM_P (fn))
parm = TREE_CHAIN (parm);
if (DECL_HAS_VTT_PARM_P (clone))
clone_parm = TREE_CHAIN (clone_parm);
for (; parm;
parm = TREE_CHAIN (parm), clone_parm = TREE_CHAIN (clone_parm))
/* Update this parameter. */
update_cloned_parm (parm, clone_parm, first);
/* Start processing the function. */
start_preparsed_function (clone, NULL_TREE, SF_PRE_PARSED);
/* Remap the parameters. */
decl_map = splay_tree_new (splay_tree_compare_pointers, NULL, NULL);
for (parmno = 0,
parm = DECL_ARGUMENTS (fn),
clone_parm = DECL_ARGUMENTS (clone);
parm;
++parmno,
parm = TREE_CHAIN (parm))
{
/* Map the in-charge parameter to an appropriate constant. */
if (DECL_HAS_IN_CHARGE_PARM_P (fn) && parmno == 1)
{
tree in_charge;
in_charge = in_charge_arg_for_name (DECL_NAME (clone));
splay_tree_insert (decl_map,
(splay_tree_key) parm,
(splay_tree_value) in_charge);
/* APPLE LOCAL ARM structor thunks */
info.in_charge_value [info.next_clone] = in_charge;
}
else if (DECL_ARTIFICIAL (parm)
&& DECL_NAME (parm) == vtt_parm_identifier)
{
/* For a subobject constructor or destructor, the next
argument is the VTT parameter. Remap the VTT_PARM
from the CLONE to this parameter. */
if (DECL_HAS_VTT_PARM_P (clone))
{
DECL_ABSTRACT_ORIGIN (clone_parm) = parm;
splay_tree_insert (decl_map,
(splay_tree_key) parm,
(splay_tree_value) clone_parm);
clone_parm = TREE_CHAIN (clone_parm);
}
/* Otherwise, map the VTT parameter to `NULL'. */
else
{
splay_tree_insert (decl_map,
(splay_tree_key) parm,
(splay_tree_value) null_pointer_node);
}
}
/* Map other parameters to their equivalents in the cloned
function. */
else
{
splay_tree_insert (decl_map,
(splay_tree_key) parm,
(splay_tree_value) clone_parm);
clone_parm = TREE_CHAIN (clone_parm);
}
}
if (targetm.cxx.cdtor_returns_this ())
{
parm = DECL_RESULT (fn);
clone_parm = DECL_RESULT (clone);
splay_tree_insert (decl_map, (splay_tree_key) parm,
(splay_tree_value) clone_parm);
}
/* APPLE LOCAL begin ARM structor thunks */
clone_to_call = find_earlier_clone (&info);
if (clone_to_call)
/* Bodies are identical; replace later one with call to an
earlier one. */
thunk_body (clone, fn, clone_to_call);
else
/* Clone the body. */
clone_body (clone, fn, decl_map);
/* APPLE LOCAL end ARM structor thunks */
/* The clone can throw iff the original function can throw. */
cp_function_chain->can_throw = !TREE_NOTHROW (fn);
/* Now, expand this function into RTL, if appropriate. */
finish_function (0);
BLOCK_ABSTRACT_ORIGIN (DECL_INITIAL (clone)) = DECL_INITIAL (fn);
expand_or_defer_fn (clone);
first = false;
/* APPLE LOCAL begin ARM structor thunks */
info.clones [info.next_clone] = clone;
info.next_clone++;
/* APPLE LOCAL end ARM structor thunks */
}
void
symtab_node::dump_base (FILE *f)
{
static const char * const visibility_types[] = {
"default", "protected", "hidden", "internal"
};
fprintf (f, "%s/%i (%s)", asm_name (), order, name ());
dump_addr (f, " @", (void *)this);
fprintf (f, "\n Type: %s", symtab_type_names[type]);
if (definition)
fprintf (f, " definition");
if (analyzed)
fprintf (f, " analyzed");
if (alias)
fprintf (f, " alias");
if (weakref)
fprintf (f, " weakref");
if (cpp_implicit_alias)
fprintf (f, " cpp_implicit_alias");
if (alias_target)
fprintf (f, " target:%s",
DECL_P (alias_target)
? IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME
(alias_target))
: IDENTIFIER_POINTER (alias_target));
if (body_removed)
fprintf (f, "\n Body removed by symtab_remove_unreachable_nodes");
fprintf (f, "\n Visibility:");
if (in_other_partition)
fprintf (f, " in_other_partition");
if (used_from_other_partition)
fprintf (f, " used_from_other_partition");
if (force_output)
fprintf (f, " force_output");
if (forced_by_abi)
fprintf (f, " forced_by_abi");
if (externally_visible)
fprintf (f, " externally_visible");
if (resolution != LDPR_UNKNOWN)
fprintf (f, " %s",
ld_plugin_symbol_resolution_names[(int)resolution]);
if (TREE_ASM_WRITTEN (decl))
fprintf (f, " asm_written");
if (DECL_EXTERNAL (decl))
fprintf (f, " external");
if (TREE_PUBLIC (decl))
fprintf (f, " public");
if (DECL_COMMON (decl))
fprintf (f, " common");
if (DECL_WEAK (decl))
fprintf (f, " weak");
if (DECL_DLLIMPORT_P (decl))
fprintf (f, " dll_import");
if (DECL_COMDAT (decl))
fprintf (f, " comdat");
if (get_comdat_group ())
fprintf (f, " comdat_group:%s",
IDENTIFIER_POINTER (get_comdat_group_id ()));
if (DECL_ONE_ONLY (decl))
fprintf (f, " one_only");
if (get_section ())
fprintf (f, " section:%s",
get_section ());
if (implicit_section)
fprintf (f," (implicit_section)");
if (DECL_VISIBILITY_SPECIFIED (decl))
fprintf (f, " visibility_specified");
if (DECL_VISIBILITY (decl))
fprintf (f, " visibility:%s",
visibility_types [DECL_VISIBILITY (decl)]);
if (DECL_VIRTUAL_P (decl))
fprintf (f, " virtual");
if (DECL_ARTIFICIAL (decl))
fprintf (f, " artificial");
if (TREE_CODE (decl) == FUNCTION_DECL)
{
if (DECL_STATIC_CONSTRUCTOR (decl))
fprintf (f, " constructor");
if (DECL_STATIC_DESTRUCTOR (decl))
fprintf (f, " destructor");
}
fprintf (f, "\n");
if (same_comdat_group)
fprintf (f, " Same comdat group as: %s/%i\n",
same_comdat_group->asm_name (),
same_comdat_group->order);
if (next_sharing_asm_name)
fprintf (f, " next sharing asm name: %i\n",
next_sharing_asm_name->order);
if (previous_sharing_asm_name)
fprintf (f, " previous sharing asm name: %i\n",
previous_sharing_asm_name->order);
if (address_taken)
fprintf (f, " Address is taken.\n");
if (aux)
{
fprintf (f, " Aux:");
dump_addr (f, " @", (void *)aux);
}
fprintf (f, " References: ");
dump_references (f);
fprintf (f, " Referring: ");
dump_referring (f);
if (lto_file_data)
fprintf (f, " Read from file: %s\n",
lto_file_data->file_name);
}
void
use_thunk (tree thunk_fndecl, bool emit_p)
{
tree a, t, function, alias;
tree virtual_offset;
HOST_WIDE_INT fixed_offset, virtual_value;
bool this_adjusting = DECL_THIS_THUNK_P (thunk_fndecl);
/* We should have called finish_thunk to give it a name. */
gcc_assert (DECL_NAME (thunk_fndecl));
/* We should never be using an alias, always refer to the
aliased thunk. */
gcc_assert (!THUNK_ALIAS (thunk_fndecl));
if (TREE_ASM_WRITTEN (thunk_fndecl))
return;
function = THUNK_TARGET (thunk_fndecl);
if (DECL_RESULT (thunk_fndecl))
/* We already turned this thunk into an ordinary function.
There's no need to process this thunk again. */
return;
if (DECL_THUNK_P (function))
/* The target is itself a thunk, process it now. */
use_thunk (function, emit_p);
/* Thunks are always addressable; they only appear in vtables. */
TREE_ADDRESSABLE (thunk_fndecl) = 1;
/* Figure out what function is being thunked to. It's referenced in
this translation unit. */
TREE_ADDRESSABLE (function) = 1;
mark_used (function);
if (!emit_p)
return;
if (0 && TARGET_USE_LOCAL_THUNK_ALIAS_P (function))
alias = make_alias_for_thunk (function);
else
alias = function;
fixed_offset = THUNK_FIXED_OFFSET (thunk_fndecl);
virtual_offset = THUNK_VIRTUAL_OFFSET (thunk_fndecl);
if (virtual_offset)
{
if (!this_adjusting)
virtual_offset = BINFO_VPTR_FIELD (virtual_offset);
virtual_value = tree_low_cst (virtual_offset, /*pos=*/0);
gcc_assert (virtual_value);
}
else
virtual_value = 0;
/* And, if we need to emit the thunk, it's used. */
mark_used (thunk_fndecl);
/* This thunk is actually defined. */
DECL_EXTERNAL (thunk_fndecl) = 0;
/* The linkage of the function may have changed. FIXME in linkage
rewrite. */
TREE_PUBLIC (thunk_fndecl) = TREE_PUBLIC (function);
DECL_VISIBILITY (thunk_fndecl) = DECL_VISIBILITY (function);
DECL_VISIBILITY_SPECIFIED (thunk_fndecl)
= DECL_VISIBILITY_SPECIFIED (function);
if (DECL_ONE_ONLY (function) || DECL_WEAK (function))
make_decl_one_only (thunk_fndecl, cxx_comdat_group (thunk_fndecl));
if (flag_syntax_only)
{
TREE_ASM_WRITTEN (thunk_fndecl) = 1;
return;
}
push_to_top_level ();
if (TARGET_USE_LOCAL_THUNK_ALIAS_P (function)
&& targetm.have_named_sections)
{
resolve_unique_section (function, 0, flag_function_sections);
if (DECL_SECTION_NAME (function) != NULL && DECL_ONE_ONLY (function))
{
resolve_unique_section (thunk_fndecl, 0, flag_function_sections);
/* Output the thunk into the same section as function. */
DECL_SECTION_NAME (thunk_fndecl) = DECL_SECTION_NAME (function);
}
}
/* Set up cloned argument trees for the thunk. */
t = NULL_TREE;
for (a = DECL_ARGUMENTS (function); a; a = TREE_CHAIN (a))
{
tree x = copy_node (a);
TREE_CHAIN (x) = t;
DECL_CONTEXT (x) = thunk_fndecl;
SET_DECL_RTL (x, NULL_RTX);
DECL_HAS_VALUE_EXPR_P (x) = 0;
t = x;
}
a = nreverse (t);
DECL_ARGUMENTS (thunk_fndecl) = a;
TREE_ASM_WRITTEN (thunk_fndecl) = 1;
cgraph_add_thunk (thunk_fndecl, function,
this_adjusting, fixed_offset, virtual_value,
virtual_offset, alias);
if (!this_adjusting
|| !targetm.asm_out.can_output_mi_thunk (thunk_fndecl, fixed_offset,
virtual_value, alias))
{
/* If this is a covariant thunk, or we don't have the necessary
code for efficient thunks, generate a thunk function that
just makes a call to the real function. Unfortunately, this
doesn't work for varargs. */
if (varargs_function_p (function))
error ("generic thunk code fails for method %q#D which uses %<...%>",
function);
}
pop_from_top_level ();
}
