* Makefile.in (OBJS, LIBCPP_OBJS, LIBCPP_DEPS,

	cpplib.o, cpphash.o, fix-header): Update.
	(hashtable.o): New target.
	* c-common.h: Include cpplib.h.  Define C_RID_CODE and
	struct c_common_identifier here.
	* c-lang.c (c_init_options): Update.  Call set_identifier_size.
	* c-lex.c (c_lex): Update.
	* c-pragma.h: Update.
	* c-tree.h (struct lang_identifier): Contain c_common_identifier.
	Delete rid_code.
	(C_RID_CODE): Delete.
	* cpphash.c: Rewrite to use hashtable.c.
	* cpphash.h: Update include guards.
	(struct cpp_reader): Remove hashtab.
	hash_ob and buffer_ob are no longer pointers.  Add hash_table
	and our_hashtable.
	(HASHSTEP, _cpp_init_hashtable,	_cpp_lookup_with_hash): Delete.
	(_cpp_cleanup_hashtable): Rename _cpp_destroy_hashtable.
	(_cpp_cleanup_stacks): Rename _cpp_init_directives.
	* cppinit.c (cpp_create_reader): Update.
	* cpplex.c (cpp_ideq, parse_identifier, cpp_output_token): Update.
	(cpp_interpret_charconst): Eliminate warning.
	* cpplib.c (do_pragma, do_endif, push_conditional,
	cpp_push_buffer, cpp_pop_buffer): Update.
	(_cpp_init_stacks): Rename cpp_init_directives.
	(_cpp_cleanup_stacks): Remove.
	* cpplib.h: Update include guards.  Include tree-core.h and c-rid.h.
	(cpp_hashnode, cpp_token, NODE_LEN, NODE_NAME,
	 cpp_forall_identifiers, cpp_create_reader): Update.
	(C_RID_CODE, cpp_make_node): New.
	(c_common_identifier): New identifier node for C front ends.
	* cppmain.c (main): Update.
	* fix-header.c (read_scan_file): Update.
	* flags.h (id_clash_len): Make unsigned.
	* ggc.h (ggc_mark_nonnull_tree): New.
	* hashtable.c: New.
	* hashtable.h: New.
	* stringpool.c: Update comments and copyright.  Update to use
	hashtable.c.
	* toplev.c (approx_sqrt): Move to hashtable.c.
	(id_clash_len): Make unsigned.
	* toplev.h (ident_hash): New.
	* tree.c (gcc_obstack_init): Move to hashtable.c.
	* tree.h: Include hashtable.h.
	(IDENTIFIER_POINTER, IDENTIFIER_LENGTH): Update.
	(GCC_IDENT_TO_HT_IDENT, HT_IDENT_TO_GCC_IDENT): New.
	(struct tree_identifier): Update.
	(make_identifier): New.
cp:
	* cp-tree.h (struct lang_identifier, C_RID_YYCODE): Update.
	(C_RID_CODE): Remove.
	* lex.c (cxx_init_options): Call set_identifier_size.  Update.
	(init_parse): Don't do it here.
objc:
	* objc-act.c (objc_init_options): Call set_identifier_size. Update.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@42334 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 18 insertions, 21 deletions

diff --git a/gcc/cpphash.h b/gcc/cpphash.h
index cf027f095c6..17438c7a4e4 100644
--- a/gcc/cpphash.h
+++ b/gcc/cpphash.h
@@ -19,11 +19,12 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
    that need to be visible across files.  It's called cpphash.h for
    historical reasons.  */
 
-#ifndef __GCC_CPPHASH__
-#define __GCC_CPPHASH__
+#ifndef GCC_CPPHASH_H
+#define GCC_CPPHASH_H
 
-struct directive;		/* These are deliberately incomplete.  */
-struct htab;
+#include "hashtable.h"
+
+struct directive;		/* Deliberately incomplete.  */
 
 /* Test if a sign is valid within a preprocessing number.  */
 #define VALID_SIGN(c, prevc) \
@@ -299,9 +300,6 @@ struct cpp_reader
   /* Current depth in #include directives.  */
   unsigned int include_depth;
 
-  /* Hash table of macros and assertions.  See cpphash.c.  */
-  struct htab *hashtab;
-
   /* Tree of other included files.  See cppfiles.c.  */
   struct splay_tree_s *all_include_files;
 
@@ -318,11 +316,11 @@ struct cpp_reader
 
   /* Obstack holding all macro hash nodes.  This never shrinks.
      See cpphash.c */
-  struct obstack *hash_ob;
+  struct obstack hash_ob;
 
   /* Obstack holding buffer and conditional structures.  This is a
-     real stack.  See cpplib.c */
-  struct obstack *buffer_ob;
+     real stack.  See cpplib.c.  */
+  struct obstack buffer_ob;
 
   /* Pragma table - dynamic, because a library user can add to the
      list of recognized pragmas.  */
@@ -331,6 +329,9 @@ struct cpp_reader
   /* Call backs.  */
   struct cpp_callbacks cb;
 
+  /* Identifier hash table.  */ 
+  struct ht *hash_table;
+
   /* User visible options.  */
   struct cpp_options opts;
 
@@ -347,6 +348,9 @@ struct cpp_reader
   /* Whether to print our version number.  Done this way so
      we don't get it twice for -v -version.  */
   unsigned char print_version;
+
+  /* Whether cpplib owns the hashtable.  */
+  unsigned char our_hashtable;
 };
 
 /* Character classes.  Based on the more primitive macros in safe-ctype.h.
@@ -384,10 +388,6 @@ extern unsigned char _cpp_trigraph_map[UCHAR_MAX + 1];
 #define CPP_PEDANTIC(PF) CPP_OPTION (PF, pedantic)
 #define CPP_WTRADITIONAL(PF) CPP_OPTION (PF, warn_traditional)
 
-/* Hash step.  The hash calculation is duplicated in cpp_lookup and
-   parse_name.  */
-#define HASHSTEP(r, c) ((r) * 67 + (c - 113));
-
 /* In cpperror.c  */
 enum error_type { WARNING = 0, WARNING_SYSHDR, PEDWARN, ERROR, FATAL, ICE };
 extern int _cpp_begin_message PARAMS ((cpp_reader *, enum error_type,
@@ -403,10 +403,8 @@ extern void _cpp_push_token		PARAMS ((cpp_reader *, const cpp_token *,
 						 const cpp_lexer_pos *));
 
 /* In cpphash.c */
-extern void _cpp_init_hashtable		PARAMS ((cpp_reader *));
-extern void _cpp_cleanup_hashtable	PARAMS ((cpp_reader *));
-extern cpp_hashnode *_cpp_lookup_with_hash PARAMS ((cpp_reader*, size_t,
-						    unsigned int));
+extern void _cpp_init_hashtable		PARAMS ((cpp_reader *, hash_table *));
+extern void _cpp_destroy_hashtable	PARAMS ((cpp_reader *));
 
 /* In cppfiles.c */
 extern void _cpp_fake_include		PARAMS ((cpp_reader *, const char *));
@@ -445,8 +443,7 @@ extern int _cpp_test_assertion PARAMS ((cpp_reader *, int *));
 extern int _cpp_handle_directive PARAMS ((cpp_reader *, int));
 extern void _cpp_define_builtin	PARAMS ((cpp_reader *, const char *));
 extern void _cpp_do__Pragma	PARAMS ((cpp_reader *));
-extern void _cpp_init_stacks	PARAMS ((cpp_reader *));
-extern void _cpp_cleanup_stacks	PARAMS ((cpp_reader *));
+extern void _cpp_init_directives PARAMS ((cpp_reader *));
 extern void _cpp_init_internal_pragmas PARAMS ((cpp_reader *));
 extern void _cpp_do_file_change PARAMS ((cpp_reader *, enum cpp_fc_reason,
 					 const char *, unsigned int));
@@ -517,4 +514,4 @@ ufputs (s, f)
   return fputs ((const char *)s, f);
 }
 
-#endif
+#endif /* GCC_CPPHASH_H */