From b3187c7c505e8cf33bbc544e5841787a08ecb7a5 Mon Sep 17 00:00:00 2001 From: kenner Date: Tue, 27 Nov 2001 14:31:29 +0000 Subject: * Makefile.in (c-lang.o): Depends on langhooks-def.h. (expr.o, varasm.o): Depends on langhooks.h. * c-common.c (c_safe_from_p): Always declare. (c_expand_expr): Refine when declared. * c-lang.c (c-common.h): Now include. (LANG_HOOKS_SAFE_FROM_P): Define new hook. (c_init): Don't set lang_safe_from_expr. * expr.c (langhooks.h): Now include. (lang_safe_from_p): No longer define. (safe_from_p): Use lang hook. (expand_expr): Set IGNORE if VOID_TYPE result of VIEW_CONVERT_EXPR too. (expand_expr, case VIEW_CONVERT_EXPR): Pass ro_modifier down. * expr.h (lang_expand_constant, lang_safe_from_p): Delete. * langhooks-def.h (lhd_return_tree, lhd_safe_from_p): New decls. (LANG_HOOKS_EXPAND_CONSTANT, LANG_HOOKS_SAFE_FROM_P): New hooks. * langhooks.c (lhd_return_tree, lhd_safe_from_p): New functions. * langhooks.h (struct lang_hooks): New fields expand_constant and safe_from_p. * output.h (output_constant): Size arg is HOST_WIDE_INT. * stmt.c (expand_decl_init): No longer need to expand constant for CONST_DECL. * stor-layout.c (put_pending_size): Don't check for SAVE_EXPR. * toplev.c (lang_expand_constant): Delete var. * tree.c (save_expr): Don't put another SAVE_EXPR around simple operations on SAVE_EXPR. * varasm.c (langhooks.h): Now include. (compare_constant_1): Use lang_hooks, not lang_expand_constant. (record_constant_1, output_addressed_constants): Likewise. (initializer_constant_valid_p, output_constant): Likewise. (output_constant_def): Process no-defer of string constant. (output_addressed_constants, case ADDR_EXPR): Use handled_component_p. (output_constant): Strip more conversions. Track our size and pad for the rest. (array_size_for_constructor): Remove code for non-byte STRING_CST. (output_constructor): SIZE now HOST_WIDE_INT. * cp/Make-lang.in (cp-lang.o): Depends on c-common.h. * cp/cp-lang.c (c-common.h): Include. (LANG_HOOKS_EXPAND_CONSTANT, LANG_HOOKS_SAFE_FROM_P): New hooks. * cp/decl.c (cxx_init_decl_processing): Don't set lang_safe_from_p. * cp/expr.c (init_cplus_expand): Don't set lang_expand_constant. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@47376 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/langhooks.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'gcc/langhooks.h') diff --git a/gcc/langhooks.h b/gcc/langhooks.h index befdb0f6838..0519d21bbfe 100644 --- a/gcc/langhooks.h +++ b/gcc/langhooks.h @@ -109,6 +109,20 @@ struct lang_hooks Returns -1 if the language does nothing special for it. */ HOST_WIDE_INT (*get_alias_set) PARAMS ((tree)); + /* Called with an expression that is to be processed as a constant. + Returns either the same expression or a language-independent + constant equivalent to its input. */ + tree (*expand_constant) PARAMS ((tree)); + + /* Hook called by safe_from_p for language-specific tree codes. It is + up to the language front-end to install a hook if it has any such + codes that safe_from_p needs to know about. Since same_from_p will + recursively explore the TREE_OPERANDs of an expression, this hook + should not reexamine those pieces. This routine may recursively + call safe_from_p; it should always pass `0' as the TOP_P + parameter. */ + int (*safe_from_p) PARAMS ((rtx, tree)); + /* Nonzero if TYPE_READONLY and TREE_READONLY should always be honored. */ bool honor_readonly; -- cgit v1.2.1