From 051c57dafd8c31f1f098c9c8439dfa3c26e92c2c Mon Sep 17 00:00:00 2001 From: Richard Kenner Date: Wed, 31 May 2000 16:01:57 -0400 Subject: [PATCH] Makefile.in (c-decl.o): Depend on rtl.h and expr.h. * Makefile.in (c-decl.o): Depend on rtl.h and expr.h. * alias.c (struct alias_entry): alias_set is HOST_WIDE_INT. (REG_BASE_VALUE): Remove unneeded cast to unsigned. (get_alias_set_entry): ALIAS_SET arg is HOST_WIDE_INT. (find_base_decl): New function, from c_find_base_decl in c-common.c. (new_alias_set): Moved from tree.c; return is HOST_WIDE_INT. (get_alias_set): Likewise. Major rework to do more things and allow language-specific code to just handle special-cases. (record_alias_subset): Args are HOST_WIDE_INT. (record_component_alias): Local vars are HOST_WIDE_INT. Don't handle COMPLEX_EXPR. (get_varargs_alias_set): Moved from builtins.c. (get_frame_alias_set): New function. * builtins.c (expand_builtin_return_address): Use frame alias set. (expand_builtin_setjmp, expand_builtin_longjmp): Use alias set for setjmp buffer. (get_memory_rtx): Rework to use set_mem_attributes. (get_varargs_alias_set): Deleted from here. * c-common.c (c_apply_type_quals_to_decl): Alias sets now HOST_WIDE_INT. (c_find_base_decl): Deleted from here. (c_get_alias_set): Remove many cases and rework to just handle C-specific cases. * c-common.h (c_get_alias_set): Returns HOST_WIDE_INT. * c-decl.c (rtl.h, expr.h): Now included. (init_decl_processing): Call record_component_aliases on array types. (grokdeclarator): Likewise. Set TREE_ADDRESSABLE for all fields that are not bitfields. * c-typeck.c (common_type): Call record_component_aliases for array. * caller-save.c (setup_save_areas): Rework register loop for unsigned. Set all save areas to the frame alias set. * calls.c (initialie_argument_information): Call set_mem_attributes. (compute_argument_addresses, expand_call): Likewise. * explow.c (set_mem_attributes): New function. (stabilize): Use MEM_COPY_ATTRIBUTES and force_reg. * expr.c (struct move_by_pieces): Remove {to,from}_{struct,readonly}. LEN and OFFSET now HOST_WIDE_INT. (clear_by_pieces): Similar changes. (move_by_pieces): LEN now HOST_WIDE_INT; don't set deleted fields. (move_by_pieces_ninsns): Now returns unsigned HOST_WIDE_INT. (move_by_pieces_1): Don't use deleted fields, use MEM_COPY_ATTRIBUTES. (clear_by_pieces_1): Likewise. (emit_push_insn): Call set_mem_attributes. (expand_expr, case INDIRECT_REF): Likewise. (expand_expr, case VAR_DECL): Call change_address. * expr.h (ADD_PARM_SIZE, SUB_PARM_SIZE): Use host_integerp and tree_low_cst. (get_varargs_alias_set, get_frame_alias_set): New decls. (record_base_value, record_alias_subset, lang_get_alias_set): Likewise. (new_alias_set, set_mem_attributes): Likewse. * function.c (struct temp_slot): ALIAS_SET is HOST_WIDE_INT. (assign_stack_temp_for_type): Likewise. Can split slot even if alias set since can copy. Set MEM_ALIAS_SET and MEM_SET_IN_STRUCT_P. (assign_temp): Use host_integerp and tree_low_cst. (put_var_into_stack): Properly handle SAVE_EXPR. (put_addressof_into_stack): Likewise. (assign_parms): Call set_mem_attributes. Delete #if 0 code. (fix_lexical_address): Put reference to chain into frame alias set. (expand_function_start): Call set_mem_attributes. * integrate.c (expand_inline_function): Likewise. * recog.c (adj_offsettable_operand): Use MEM_COPY_ATTRIBUTES. * regmove.c (try_apply_stack_adjustment): Likewise. * reload.c (push_reload, make_memloc): Likewise. * reload1.c (alter_reg): Make alias sets for spilled pseudos. * rtl.def (MEM): Update comment. * rtl.h (MEM_ALIAS_SET): Now uses XCWINT. (move_by_pieces): Change length to HOST_WIDE_INT. (record_base_value, record_alias_subset): Delete from here. * stmt.c (expand_decl): Call set_mem_attributes. * stor-layout.c (finish_record_layout): Call record_component_aliases.i * toplev.c (compile_file): Call init_alias_once earlier. * tree.c (lang_get_alias_set, get_alias_set, new_alias_set): Deleted from here: now in alias.c. * tree.h (struct tree_type): alias_set is HOST_WIDE_INT. (struct tree_decl): Likewise. (get_alias_set, new_alias_set, lang_get_alias_set): Deleted from here. * varasm.c (make_function_rtl, make_decl_rtl): Call set_mem_attributes. (output_constant_def, force_const_mem): Likewise. * cp/Makefile.in (decl.o): Include ../expr.h. * cp/decl.c (expr.h): Include. (init_decl_processing): Call record_component_aliases for arrays. (grokdeclarator): Likewise. Set TREE_ADDRESSABLE for fields that aren't bitfields. * cp/tree.c (build_cplus_array_type_1): Call record_component_aliases. From-SVN: r34308 --- gcc/c-decl.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/gcc/c-decl.c b/gcc/c-decl.c index 34fca5d8812d..74ac13aba113 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -30,9 +30,11 @@ Boston, MA 02111-1307, USA. */ #include "config.h" #include "system.h" #include "tree.h" +#include "rtl.h" #include "flags.h" #include "function.h" #include "output.h" +#include "expr.h" #include "c-tree.h" #include "c-lex.h" #include "toplev.h" @@ -3012,13 +3014,19 @@ init_decl_processing () array type. */ char_array_type_node = build_array_type (char_type_node, array_domain_type); + /* Likewise for arrays of ints. */ int_array_type_node = build_array_type (integer_type_node, array_domain_type); + /* This is for wide string constants. */ wchar_array_type_node = build_array_type (wchar_type_node, array_domain_type); + record_component_aliases (char_array_type_node); + record_component_aliases (int_array_type_node); + record_component_aliases (wchar_array_type_node); + void_list_node = tree_cons (NULL_TREE, void_type_node, NULL_TREE); default_function_type @@ -4399,6 +4407,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized) type = build_array_type (type, itype); if (type_quals) type = c_build_qualified_type (type, type_quals); + record_component_aliases (type); #if 0 /* don't clear these; leave them set so that the array type or the variable is itself const or volatile. */ @@ -4571,6 +4580,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized) && TREE_CODE (type) == ARRAY_TYPE && TYPE_DOMAIN (type) == 0) { type = build_array_type (TREE_TYPE (type), 0); + record_component_aliases (type); if (size_varies) C_TYPE_VARIABLE_SIZE (type) = 1; } @@ -4683,11 +4693,13 @@ grokdeclarator (declarator, declspecs, decl_context, initialized) type = build_array_type (c_build_qualified_type (TREE_TYPE (type), type_quals), TYPE_DOMAIN (type)); + record_component_aliases (type); #if 0 /* Leave the field const or volatile as well. */ type_quals = TYPE_UNQUALIFIED; #endif } decl = build_decl (FIELD_DECL, declarator, type); + TREE_ADDRESSABLE (decl) = ! bitfield; if (size_varies) C_DECL_VARIABLE_SIZE (decl) = 1; } @@ -4763,6 +4775,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized) type = build_array_type (c_build_qualified_type (TREE_TYPE (type), type_quals), TYPE_DOMAIN (type)); + record_component_aliases (type); #if 0 /* Leave the variable const or volatile as well. */ type_quals = TYPE_UNQUALIFIED; #endif -- 2.43.5