From 8ac61af705335691fd0d91ec6cd96e65bb81201c Mon Sep 17 00:00:00 2001 From: Richard Kenner Date: Tue, 23 Oct 2001 18:51:18 +0000 Subject: alias.c (can_address_p): Compnonents are not addressable if the containing type has alias set 0. * alias.c (can_address_p): Compnonents are not addressable if the containing type has alias set 0. (get_alias_set): Rework to use STRIP_NOPS. Only call front-end routine on object, type, or object with NOPs stripped, not inner values. Use language hook to call front-end routine. * builtins.c (get_memory_rtx): Always call set_mem_attributes. (expand_builtin_apply): Call set_mem_align on MEMs we make. Don't pass alignment to emit_block_move. (expand_builtin_memcpy, expand_builtin_va_copy): Likewise. (expand_builtin_memset): Likewise, but for clear_storage. * c-common.c (lang_get_alias_set): Renamed to c_common_alias_set and remove C++ specific parts. * c-common.h (c_common_get_alias_set): Add declaration. * c-lang.c (LANG_HOOKS_GET_ALIAS_SET): New macro. * calls.c (emit_call_1): Fix typo in sibcall_pop case. (save_fixed_argument_area): Call set_mem_align. Remove alignment in call to emit_block_move. (emit_library_call_value_1, store_one_arg): Likewise. (target_for_arg): Remove; disabled long ago. * emit-rtl.c (set_mem_attributes): Rework to only call get_mem_attrs once and similar cleanups. (offset_address): Use proper introductory comment. * expr.c (emit_block_move): Use alignment from that of MEM args, not from explicit operand; all callers changed. (clear_storage): Likewise. (expand_assignment): Don't call set_mem_alias_set on to_rtx. (store_field): Remove kludge on alias set used for to_rtx. (highest_pow2_factor, case *_DIV_EXPR): Never return 0. (expand_expr_unaligned): Call set_mem_attributes instead of set_mem_alias_set. * expr.h (emit_block_move, clear_storage): Remove ALIGN argument. * function.c (assign_stack_temp_for_type): Set MEM alignment. (expand_function_end): Track MEM attributes of trampolines. * ifcvt.c (noce_try_cmove_arith): Set alignment of new MEM. * integrate.c (copy_rtx_and_substitute, case CALL): Copy memory attributes from original. * langhooks.c (lang_hook_default_get_alias_set): New function. (hook_get_alias_set_0): New function. * langhooks.h (hook_get_alias_set_0): New declaration. (lang_hook_default_get_alias_set): Likewise. (LANG_HOOKS_GET_ALIAS_SET): New macro; add to initializer. * reload1.c (alter_reg): Use adjust_address_nv. * rtl.c (get_mode_alignment): Moved to here. * rtl.h (MEM_ALIGN): Take default from mode, if not BLKmode, and change default if unknown from 1 to BITS_PER_UNIT. * stor-layout.c (get_mode_alignment): Remove from here. * toplev.h (struct lang_hoks): Add get_alias_set field. * tree.h (lang_get_alias_set): Delete declaration. * config/arc/arc.c (arc_setup_incoming_varags): Set MEM alignment. * config/i386/i386.c (ix86_setup_incoming_varargs): Likewise. (ix86_va_arg): Likewise. * config/i960/i960.c (i960_setup_incoming_varargs): Likewise. * config/pa/pa.c (hppa_builtin_saveregs): Likewise. * config/sparc/sparc.c (sparc_va_arg): Likewise. * config/rs6000/rs6000.c (setup_incoming_varargs): Likewise. (expand_block_move_mem): Remove dead code. * cp/cp-lang.c (cxx_get_alias_set): New function. Point LANG_HOOKS_GET_ALIAS_SET to it. * f/com.c (LANG_HOOKS_GET_ALIAS_SET): New macro. (lang_get_alias_set): Delete. * java/lang.c (lang_get_alias_set): Deleted. From-SVN: r46440 --- gcc/toplev.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'gcc/toplev.h') diff --git a/gcc/toplev.h b/gcc/toplev.h index 4203207..93b30f4 100644 --- a/gcc/toplev.h +++ b/gcc/toplev.h @@ -31,7 +31,7 @@ struct rtx_def; #define skip_leading_substring(whole, part) \ (strncmp (whole, part, strlen (part)) ? NULL : whole + strlen (part)) -extern int toplev_main PARAMS ((int argc, char **argv)); +extern int toplev_main PARAMS ((int, char **)); extern int read_integral_parameter PARAMS ((const char *, const char *, const int)); extern int count_error PARAMS ((int)); @@ -127,7 +127,8 @@ struct lang_hooks_for_tree_inlining void *, void *)); int (*cannot_inline_tree_fn) PARAMS ((union tree_node **)); int (*disregard_inline_limits) PARAMS ((union tree_node *)); - union tree_node *(*add_pending_fn_decls) PARAMS ((void*, union tree_node *)); + union tree_node *(*add_pending_fn_decls) PARAMS ((void *, + union tree_node *)); int (*tree_chain_matters_p) PARAMS ((union tree_node *)); int (*auto_var_in_fn_p) PARAMS ((union tree_node *, union tree_node *)); union tree_node *(*copy_res_decl_for_inlining) PARAMS ((union tree_node *, @@ -164,6 +165,10 @@ struct lang_hooks /* Called when all command line options have been processed. */ void (*post_options) PARAMS ((void)); + /* Called to obtain the alias set to be used for an expression or type. + Returns -1 if the language does nothing special for it. */ + HOST_WIDE_INT (*get_alias_set) PARAMS ((tree)); + /* Nonzero if TYPE_READONLY and TREE_READONLY should always be honored. */ bool honor_readonly; -- cgit v1.1