1999-11-25 Mark Mitchell <mark@codesourcery.com>
* Make-lang.in (CXX_SRCS): Add optimize.c.
* Makefile.in (CXX_OBJS): Add optimize.o.
(CXX_TREE_H): Add splay-tree.h, system.h, and $(CONFIG_H).
(spew.o, lex.o, decl.o, decl2.o, typeck2.o, typeck.o): Adjust.
(class.o, call.o, friend.o, init.o, method.o, cvt.o): Likewise.
(search.o, tree.o, ptree.o, rtti.o, except.o, expr.o): Likewise.
(xref.o, pt.o, error.o, errfn.o, repo.o, semantics.o): Likewise.
(dump.o): Likewise.
(optimize.o): New target.
* class.c: Don't include splay-tree.h.
* cp-tree.def (CTOR_COMPLETE): Rename to CTOR_STMT.
* cp-tree.h: Include splay-tree.h.
(DECL_UNINLINABLE): New macro.
(CTOR_BEGIN_P, CTOR_END_P): New macros.
(flag_inline_trees): New variable.
(local_variable_p): New function.
(nonstatic_local_decl_p): Likewise.
(optimize_function): Likewise.
(cplus_unsave_expr_now): Remove.
(copy_tree_r): Declare.
(remap_save_expr): Likewise.
* decl.c (local_variable_p): Don't
make it static.
(local_variable_p_walkfn): New function.
(make_rtl_for_local_static): Remove code to try to avoid writing
out static constants.
(emit_local_var): Fix indentation.
(nonstatic_local_decl_p): New function.
(check_default_argument): Use local_variable_p_walkfn, not
local_variable_p, when walking the tree.
(start_function): Set the DECL_CONTEXT for automatically generated
labels.
(finish_constructor_body): Use CTOR_STMT to mark the end of a
constructor.
* decl2.c: Don't include splay-tree.h.
(flag_inline_trees): Define.
* dump.c: Don't include
splay-tree.h.
* except.c (expand_end_catch_block): Fix comment formatting.
(expand_end_eh_spec): Set DECL_CONTEXT on temporary variables.
(expand_throw): Tidy comment.
* init.c (build_vec_delete_1): Use create_temporary_var.
* lex.c (cplus_tree_code_type): Make it static.
(cplus_tree_code_length): Likewise.
(cplus_tree_code_name): Likewise.
* optimize.c: New file.
* semantics.c (finish_goto_stmt): Set DECL_UNLINABLE for functions
with computed gotos.
(setup_vtbl_ptr): Mark the beginnings of constructors with
CTOR_STMT.
(expand_stmt): Handle CTOR_STMT, not CTOR_COMPLETE.
(expand_body): Call optimize_function. Save bodies if we're doing
inlining on trees.
* tree.c: Don't include splay-tree.h. Include insn-config.h and
integrate.h.
(copy_tree_r): Make it public.
(statement_code_p): New function.
(mark_local_for_remap_r): Likewise.
(cp_usave_r): Likewise.
(cp_unsave): Likewise.
(build_cplus_new): Set DECL_CONTEXT for temporary variables.
(walk_tree): Walk into `s' class nodes. Walk statement chains.
(copy_tree_r): Handle 's' class nodes. Restore chains for
statements. Nullify scopes. Don't copy types.
(init_tree): Set lang_unsave to cp_unsave.
(remap_save_expr): Define.
* ir.texi: Document CTOR_STMT.
From-SVN: r30669
* class.c (finish_struct): If we're a local class in a template
function, add a TAG_DEFN.
* pt.c (lookup_template_class): If this is a local class in a
template function, call pushtag.
(tsubst_expr, case TAG_DEFN): Handle classes, too.
Emit debug info with the vtable.
* search.c (maybe_suppress_debug_info): New function...
* class.c (finish_struct_1): ...split out from here.
* cp-tree.h: Declare it.
* decl2.c (finish_vtable_vardecl): Override TYPE_DECL_SUPPRESS_DEBUG
if we're writing out the vtable.
* decl.c, search.c (dfs_debug_mark, dfs_debug_unmarked_p,
note_debug_info_needed): #if 0 out.
From-SVN: r30541
* decl.c (duplicate_decls): Propagate DECL_DEFER_OUTPUT.
* decl2.c (comdat_linkage): Set DECL_DEFER_OUTPUT.
* rtti.c (get_tinfo_fn_unused): Split out from get_tinfo_fn.
* class.c (set_rtti_entry): Use it.
From-SVN: r30523
* cp-tree.h (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK): New macro.
(DECL_TEMPLATE_INFO): Use it.
* decl.c (warn_extern_redeclared_static): Do nothing for
TEMPLATE_DECLs.
* decl2.c (mark_used): Explicitly check for function or variable.
* semantics.c (finish_unary_op_expr): Check whether result is also
an INTEGER_CST.
From-SVN: r30426
* decl2.c (struct priority_info_s): Remove initialization_sequence
and destruction_sequence.
(start_static_storage_duration_function): Return the body of the
function. Convert for function-at-a-time mode.
(generate_inits_for_priority): Remove.
(finish_static_storage_duration_function): Change prototype.
Adjust for function-at-a-time mode.
(do_static_initialization): Likewise.
(do_static_destruction): Likewise.
(do_static_initialization_and_destruction): Remove.
(start_static_initialization_or_destruction): New function.
(finish_static_initialization_or_destruction): Likewise.
(get_priority_info): Don't manipulation initialization_sequence or
destruction_sequence.
(prune_vars_needing_no_initialization): New function.
(write_out_vars): Likewise.
(finish_file): Use the various new functions instead of the old.
From-SVN: r29731
* cp-tree.h (UPT_TEMPLATE): Remove.
(UPT_PARMS): Likewise.
(DECL_NEEDED_P): New macro.
* decl2.c (finish_vtable_vardecl): Use it.
(finish_objects): Don't crash with -fsyntax-only.
(finish_file): Use DECL_NEEDED_P. Don't prune vtables when
-fsyntax-only.
* pt.c (tsubst_friend_function): Remove FIXME that talks about
obstacks.
(tsubst_expr): Correct handling of function try-blocks.
* semantics.c: Include flags.h.
(expand_body): Don't do RTL generation if -fsyntax-only.
* Makefile.in (semantics.o): Depends on flags.h.
From-SVN: r29705
* lex.c: Get WCHAR_TYPE_SIZE from wchar_type_node.
* lang-specs.h: If -fshort-wchar, override __WCHAR_TYPE__.
* decl2.c (lang_f_options): Add -fshort-wchar.
* cp-tree.h: Declare flag_short_wchar.
* decl.c (init_decl_processing): If -fshort-wchar, use 'short unsigned
int' for wchar_t.
From-SVN: r29639
* decl.c (pushdecl): Do create a binding for extern "C" functions,
but not for their DECL_ASSEMBLER_NAMEs.
(lookup_name_current_level): Fix formatting.
(xref_tag): Likewise.
* decl2.c (start_objects): Mark static constructors and
destructors as used.
From-SVN: r29609
* decl.c (define_case_label): Don't crash if we're not in a switch.
* decl2.c (lang_decode_option): Don't bother explicitly ignoring flags.
* lang-options.h: Restore -fthis-is-variable. Remove help strings
for unsupported flags.
* decl2.c (lang_decode_option): Accept and ignore -finit-priority.
Accept and warn about -fthis-is-variable.
From-SVN: r29594
* cp-tree.h (language_function): Rename expanding_p to
x_expanding_p. Rename named_label_uses to x_named_label_uses.
(expanding_p): Adjust accordingly.
(TREE_VIA_PRIVATE): Fix typo in comment.
(DECL_REFERENCE_SLOT): Remove.
(SET_DECL_REFERENCE_SLOT): Likewise.
* decl.c (named_label_uses): Adjust. Remove chicken comment.
(push_overloaded_decl): Don't truncate the chain of bindings when
adding an overloaded function.
(grok_reference_init): Don't use DECL_REFERENCE_SLOT.
(initialize_local_var): Fix typo in comment.
(store_parm_decls): Don't set DECL_REFERENCE_SLOT. Tidy up.
* decl2.c (start_objects): Make the fact that we are expanding
the generated function right away explicit.
(start_static_storage_duration_function): Likewise.
(finish_file): Fix typo in comment.
* init.c (build_vec_init): Correct bugs in handling cleanups.
* semantics.c (maybe_convert_cond): New function.
(FINISH_COND): Always store the condition, even if there's
a declaration.
(finish_if_stmt_cond): Use maybe_convert_cond.
(finish_while_stmt_cond): Likewise.
(finish_do_stmt): Likewise.
(finish_for_cond): Likewise.
(expand_cond): Adjust.
From-SVN: r29265
* cp-tree.h (saved_scope): Add function_decl, bindings.
(language_function): Rename binding_level to bindings.
(cp_function_chain): Use the current_function, not the
outer_function_chain.
(current_class_ptr): Make it work, even when there's no
current function.
(current_class_ref): Likewise.
(SF_DEFAULT, SF_PRE_PARSED, SF_INCLASS_INLINE, SF_EXPAND): New
macros.
(clear_temp_name): Remove.
* decl.c (check_function_type): New function, broken out from
start_function.
(current_binding_level): Adjust definition.
(pushlevel): Simplify.
(poplevel): Don't use named_label_uses when we're outside
a function scope.
(mark_saved_scope): Mark function_decl and bindings.
(maybe_push_to_top_level): Don't unconditionally push a new
function context. Save bindings and the current_function_decl.
Don't clear named_labels.
(pop_from_top_level): Pop function context if appropriate.
(init_decl_processing): Set init_lang_status and free_lang_status,
rather than save_lang_status and restore_lang_status.
(start_function): Take SF_* flags. Don't clear per-function data.
Reorder and simplify to use new per-function data code. Add
asserts.
(store_parm_decls): Don't call init_function_start here.
(finish_function): Adjust for new handling of per-function data.
(push_cp_function_context): Simplify.
(mark_cp_function_context): Change binding_level to bindings.
* decl2.c (clear_temp_name): Remove.
(start_objects): Use SF flags to start_function.
(start_static_storage_duration_function): Likewise.
* except.c (start_anon_func): Remove redundant calls to
push_function_context_to. Use SF flags to start function.
(end_anon_func): Remove redundant call to pop_function_context
from.
* lex.c (reinit_parse_for_function): Don't initialize per-function
data.
* method.c (emit_thunk): Clear current_function after calling
assemble_end_function. Use SF flags for start_function.
(synthesize_method): Use SF flags for start_function.
* parse.c: Regenerated.
* parse.y (fn.defpen): Likewise.
(pending_inline): Clear current_function, even if something goes
wrong.
* pt.c (instantiate_decl): Use SF flags to start_function.
Don't save and restore expanding_p.
(add_tree): Handle the case where we are outside any function.
(end_tree): Likewise.
* rtti.c (sythesize_tinfo_fn): Use SF flags to start_function.
* semantics.c (begin_function_definition): Likewise.
(expand_body): Likewise.
From-SVN: r29240
* Makefile.in (CXX_TREE_H): Include function.h.
(decl.o): Don't depend on function.h.
(decl2.o): Likewise.
(typeck.o): Likewise.
(init.o): Likewise.
(method.o): Likewise.
* cp-tree.h: Include function.h.
(cp_function): Rename to language_function. Remove next.
(cp_function_chain): Make it a macro, not a variable.
(push_cp_function_context): Don't declare.
(pop_cp_function_context): Likewise.
* decl.c: Don't include function.h.
(push_cp_function_context): Make it static. Make it suitable for
a save_lang_status callback.
(pop_cp_function_context): Likewise.
(maybe_push_to_top_level): Call push_function_context_to, not
push_cp_function_context.
(pop_from_top_level): Call pop_function_context_from, not
pop_cp_function_context.
(init_decl_processing): Set save_lang_status and
restore_lang_status. Call push_function_context_to, not
push_cp_function_context.
(cp_function_chain): Remove.
* decl2.c: Don't include function.h.
* except.c: Don't include function.h.
(start_anon_func): Call push_function_context_to, not
push_cp_function_context.
(end_anon_func): Call pop_function_context_from, not
pop_cp_function_context.
* init.c: Don't include function.h.
* lex.c (begin_definition_of_inclass_inline): Call
push_function_context_to, not push_cp_function_context.
(process_next_inline): Call pop_function_context_from, not
pop_cp_function_context.
* method.c: Don't include function.h.
(synthesize_method): Call push_function_context_to, not
push_cp_function_context. Call pop_function_context_from, not
pop_cp_function_context.
* typeck.c: Don't include function.h.
From-SVN: r29096
* decl2.c (arg_assoc_template_arg): New prototype. New function.
(arg_assoc_class): Use arg_assoc_template_arg for template
arguments.
(arg_assoc): Likewise.
* pt.c (mangle_class_name_for_template): Allow member template
template arguments.
From-SVN: r29060
* cp-tree.h (TYPE_NEEDS_CONSTRUCTING): Remove #if 0'd definition.
(maybe_inject_for_scope_var): Declare it.
(initialize_local_var): Likewise.
* decl.c (maybe_inject_for_scope_var): Make it global.
(initialize_local_var): Likewise. Move cleanup handling here,
from cp_finish_decl.
(make_rtl_for_nonlocal_decl): Use
push_obstacks_nochange/pop_obstacks, rather than
end_temporary_allocation/resume_temporary_allocation.
(cp_finish_decl): Try to complete the type of a variable when it
is declared. Move cleanup-handling to initialize_local_var.
(expand_static_init): Use tree-building code, rather than
RTL-building code.
* decl2.c (get_temp_name): Assert non-initializedness of
temporaries.
* init.c (create_temporary_var): Move RTL-assigning code to ...
(get_temp_regvar): Here.
* pt.c (tsbust_expr): Fix indentation. Call cp_finish_decl here.
* semantics.c (expand_stmt): Don't call cp_finish_decl here. Just
call initialize_local_var to generate initialization code.
From-SVN: r28973
* cp-tree.def (SUBOBJECT): New tree node.
* cp-tree.h (CLEANUP_P): New macro.
(SUBOBJECT_CLEANUP): Likewise.
(keep_next_level): Add parameter.
(get_temp_regvar): Don't declare.
(emit_base_init): Remove parameter.
(expand_aggr_init): Rename to build_aggr_init.
(expand_vec_init): Rename to build_vec_init.
(do_pushlevel): Remove.
(do_poplevel): Likewise.
(finish_cleanup): New function.
(finish_subobject): Likewise.
(stmts_are_full_exprs_p): New variable.
* decl.c (keep_next_level): Add parameter.
(cp_finish_decl): Use build_aggr_init, not
expand_aggr_init. Use finish_expr_stmt to expand the code.
(expand_static_init): Use tree-generating, not RTL-generating,
functions to handle the initialization.
(start_function): Remove dead code. Always have a momentary
obstack inside the function, even before hitting the first curly
brace.
(cplus_expand_expr_stmt): Move calls to
expand_{start,end}_target_temps into semantics.c.
(cp_function): Add stmts_are_full_exprs_p.
(push_cp_function_context): Save it.
(pop_cp_function_context): Restore it.
* decl2.c (get_temp_regvar): Move to init.c.
(do_static_initialization): Use build_{aggr,vec}_init.
(do_static_destruction): Fix typo in comment.
* dump.c (dequeue_and_dump): Handle INIT_EXPR.
* except.c (expand_throw): Use create_temporary_var.
* expr.c (cplus_expand_expr): Use build_{aggr,vec}_init.
* init.c (expand_vec_init_try_block): Remove.
(expand_vec_init_catch_clause): Likewise.
(get_temp_regvar): New function.
(begin_init_stmts): Likewise.
(finish_init_stmts): Likewise.
(perform_member_init): Use build_{aggr,vec}_init. Build up tree
structure here.
(emit_base_init): Likewise. Remove unused parameter.
(expand_virtual_init): Likewise.
(expand_cleanup_for_base): Use finish_subobject.
(expand_aggr_vbase_init_1): Simplify.
(construct_virtual_bases): Use tree-generating functions to build
up initialization.
(expand_aggr_init): Likewise. Rename to build_aggr_init.
(expand_default_init): Likewise.
(expand_aggr_init_1): Likewise.
(expand_vec_init): Rename to build_vec_init.
* method.c (do_build_copy_constructor): Use tree-generating
functions. Don't call clear_last_expr.
(do_build_assign_ref): Likewise.
(synthesize_method): Call clear_last_expr here.
* parse.y (base_init): Don't call clear_last_expr here.
(nodecls): Likewise.
* pt.c (tsubst_expr): Handle a TRY_BLOCK with CLEANUP_P set.
* semantics.c (do_pushlevel): Move to here.
(do_poplevel): Likewise.
(stmts_are_full_exprs_p): New variable.
(finish_expr_stmt): Handle logic for temoprary cleanup here.
(finish_for_stmt): Use finish_expr_stmt.
(finish_cleanup): New function.
(finish_function_try_block): Fix indentation.
(finish_subobject): New function.
(setup_vtbl_ptr): Call keep_next_level here.
(finish_stmt_expr): Handle a block with no scope inside the
statement-expression.
(expand_stmt): Handle a TRY_BLOCK with CLEANUP_P set. Handle
SUBOBJECT.
* tree.c (search_tree): Handle INIT_EXPR.
(mapcar): Likewise.
* typeck.c (build_modify_expr): Don't build an RTL_EXPR.
* typeck2.c (store_init_value): Change expand_aggr_init to
build_aggr_init in comment.
From-SVN: r28878
* cp-tree.def (STMT_EXPR): New tree node.
* cp-tree.h (STMT_EXPR_STMT): New macro.
(store_return_init): Change prototype.
(finish_named_return_value): New function.
(expand_stmt): Likewise.
(expand_body): Likewise.
(begin_stmt_tree): Likewise.
(finish_stmt_tree): Likewise.
(expanding_p): New variable.
(last_expr_type): Likewise.
(building_stmt_tree): New macro.
* decl.c (start_function): Use building_stmt_tree, not
processing_template_decl, where appropriate.
(store_parm_decls): Likewise.
(store_return_init): Move most of the body to semantics.c.
(finish_function): Use building_stmt_tree.
(finish_stmt): Clear last_expr_type here.
(cp_function): Add expanding_p, last_tree, last_expr_type.
(push_cp_function_context): Save them.
(pop_cp_function_context): Restore them.
* decl2.c (setup_vtbl_ptr): Move to semantics.c.
* error.c (dump_expr): Handle STMT_EXPR.
* except.c (expand_start_catch_block): Use building_stmt_tree.
Use add_decl_stmt.
* expr.c (cplus_expand_expr): Handle STMT_EXPR.
(do_case): Move add_tree call to semantics.c.
* parse.y (return_init): Use finish_named_return_value.
(for.init.statement): Use finish_expr_stmt.
* parse.c: Regenerated.
* pt.c (do_pushlevel): Move to semantics.c.
(do_poplevel): Likewise.
(tsubst_copy): Handle STMT_EXPR instead of BIND_EXPR.
(tsubst_expr): Don't expand all the way to RTL here. Handle
RETURN_INIT and CTOR_INITIALIZER.
(instantiate_decl): Call expand_body after tsubst'ing into
DECL_SAVED_TREE.
* semantics.c (expand_stmts): New function.
(expanding_p): New variable.
(last_expr_type): Likewise.
(finish_expr_stmt): Use building_stmt_tree.
(begin_if_stmt): Likewise.
(finish_if_stmt_cond): Likewise.
(finish_then_clause): Likewise.
(begin_else_clause): Likewise.
(finish_else_clause): Likewise.
(begin_while_stmt): Likewise.
(finish_while_stmt_cond): Likewise.
(finish_while_stmt): Likewise.
(finish_do_body): Likewise.
(finish_do_stmt): Likewise.
(finish_return_stmt): Likewise.
(begin_for_stmt): Likewise.
(fnish_for_init_stmt): Likewise.
(finish_for_cond): Likewise.
(finish_for_expr): Likewise.
(finish_for_stmt): Likewise.
(finish_break_stmt): Likewise.
(finish_continue_stmt): Likewise.
(finish_switch_cond): Likewise.
(finish_switch_stmt): Likewise.
(finish_case_label): Call add_tree here if necessary.
(finish_goto_statement): Use building_stmt_tree.
(begin_try_block): Likewise.
(begin_function_try_block): Likewise.
(finish_try_block): Likewise.
(finish_function_try_block): Likewise.
(finish_handler_sequence): Likewise.
(finish_function_handler_sequence): Likewise.
(begin_handler): Likewise.
(finish_handler_parms): Likewise.
(finish_handler): Likewise.
(begin_compound_stmt): Likewise.
(finish_compound_stmt): Likewise.
(finish_asm_stmt): Likewise.
(finish_label_stmt): Likewise.
(finish_named_return_value): New function.
(setup_vtbl_ptr): Moved here from decl2.c.
(do_pushlevel): Moved here from pt.c.
(do_poplevel): Likewise.
(begin_stmt_expr): Use building_stmt_tree.
(finish_stmt_expr): Likewise. Build a STMT_EXPR, not a BIND_EXPR,
when building_stmt_tree.
(begin_stmt_tree): New function.
(finish_stmt_tree): Likewise.
(expand_stmt): Likewise.
(expand_body): Likewise.
* tree.c (build_cplus_method_type): Make sure the argument types
end up on the same obstack as the METHOD_TYPE.
(search_tree): Handle COMPOUND_EXPR, MODIFY_EXPR,
THROW_EXPR, STMT_EXPR.
(mapcar): Break out common cases. Handle COMPOUND_EXPR,
MODIFY_EXPR, THROW_EXPR, STMT_EXPR, RTL_EXPR. Abort, rather than
sorry, if an unsupported node is encountered.
* typeck.c (require_complete_type_in_void): Handle BIND_EXPR.
(c_expand_return): Don't call add_tree here.
From-SVN: r28729
* decl.c (unqualified_namespace_lookup): Nonstatic. Add spacep parm
to return namespaces we've looked at.
* decl2.c (lookup_using_namespace): Likewise.
(add_function): Don't call ovl_member.
(lookup_arg_dependent): Initialize k.namespaces to the list of
namespaces seen in unqualified lookup.
* call.c (equal_functions): Move here from tree.c.
(joust): Use it to handle duplicate candidates.
* tree.c (ovl_member): Use ==.
From-SVN: r28710
Mark Mitchell
Alexandre Oliva
Nathan Sidwell
Jason Merrill
Jason Merrill
Martin v. Löwis
Scott Snyder
Nathan Sidwell
Mark Mitchell
Dirk Zoller
Nick Clifton
Richard Henderson
Alex Samuel