* c-common.c (c_common_init): Set options->unsigned_char from

	flag_signed_char.
	(cb_register_builtins): Define __STRICT_ANSI__ and
	__CHAR_UNSIGNED__ here...
	* cppinit.c (init_builtins): Not here.
	(cpp_create_reader): unsigned_char option defaults to 0, not
	!DEFAULT_SIGNED_CHAR.
	(COMMAND_LINE_OPTIONS, cpp_handle_option): Lose -fsigned-char
	and -funsigned-char.

	* cpphash.h (struct spec_nodes): Kill n__STRICT_ANSI__.
	* cpphash.c (_cpp_init_hashtable): Don't set it.
	* cppmacro.c (builtin_macro) [BT_STDC]: Use the language setting
	directly.  Clarify comment.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53703 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e0b55dd..63536dd 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,4 +1,22 @@
+2002-05-21  Zack Weinberg  <zack@codesourcery.com>
+
+       * c-common.c (c_common_init): Set options->unsigned_char from
+       flag_signed_char.
+       (cb_register_builtins): Define __STRICT_ANSI__ and
+       __CHAR_UNSIGNED__ here...
+       * cppinit.c (init_builtins): Not here.
+       (cpp_create_reader): unsigned_char option defaults to 0, not
+       !DEFAULT_SIGNED_CHAR.
+       (COMMAND_LINE_OPTIONS, cpp_handle_option): Lose -fsigned-char
+       and -funsigned-char.
+
+       * cpphash.h (struct spec_nodes): Kill n__STRICT_ANSI__.
+       * cpphash.c (_cpp_init_hashtable): Don't set it.
+       * cppmacro.c (builtin_macro) [BT_STDC]: Use the language setting
+       directly.  Clarify comment.
+
 2002-05-21  Zdenek Dvorak  <rakdver@atrey.karlin.mff.cuni.cz>
+
        * bb-reorder.c (make_reorder_chain_1): Modified.
        * cfganal.c (can_fallthru, flow_call_edges_add,
        flow_preorder_transversal_compute): Modified.
@@ -80,8 +98,8 @@ Tue May 21 10:51:54 CEST 2002  Jan Hubicka  <jh@suse.cz>
 
 2002-05-20  Dale Johannesen  <dalej@apple.com>
 
-        * combine.c (cant_combine_insn_p):  Back out my
-        previous patch.
+       * combine.c (cant_combine_insn_p):  Back out my
+       previous patch.
 
 2002-05-20  Kazu Hirata  <kazu@cs.umass.edu>
 
@@ -134,14 +152,14 @@ Tue May 21 10:51:54 CEST 2002  Jan Hubicka  <jh@suse.cz>
 
 2002-05-19  Aldy Hernandez  <aldyh@redhat.com>
 
-        * config/rs6000/rs6000.h (FUNCTION_VALUE): Only return vectors in
-        an altivec register if TARGET_ALTIVEC.
+       * config/rs6000/rs6000.h (FUNCTION_VALUE): Only return vectors in
+       an altivec register if TARGET_ALTIVEC.
 
-        * config/rs600/rs6000.c (rs6000_emit_move): Change VECTOR_MODE_P
-        to ALTIVEC_VECTOR_MODE.
-        (rs6000_va_arg): Only vectors of type AltiVec are 16 byte aligned.
-        (rs6000_va_arg): Vectors may go in registers if they are not
-        altivec vectors.
+       * config/rs600/rs6000.c (rs6000_emit_move): Change VECTOR_MODE_P
+       to ALTIVEC_VECTOR_MODE.
+       (rs6000_va_arg): Only vectors of type AltiVec are 16 byte aligned.
+       (rs6000_va_arg): Vectors may go in registers if they are not
+       altivec vectors.
 
 2002-05-19  Kazu Hirata  <kazu@cs.umass.edu>
 

diff --git a/gcc/c-common.c b/gcc/c-common.c
index b9658da..89f9870 100644 (file)
--- a/gcc/c-common.c
+++ b/gcc/c-common.c
@@ -4372,6 +4372,12 @@ cb_register_builtins (pfile)
   if (flag_no_inline)
     cpp_define (pfile, "__NO_INLINE__");
 
+  if (flag_iso)
+    cpp_define (pfile, "__STRICT_ANSI__");
+
+  if (!flag_signed_char)
+    cpp_define (pfile, "__CHAR_UNSIGNED__");
+
   /* A straightforward target hook doesn't work, because of problems
      linking that hook's body when part of non-C front ends.  */
   #define preprocessing_asm_p() (cpp_get_options (pfile)->lang == CLK_ASM)
@@ -4461,15 +4467,7 @@ c_common_init (filename)
   options->int_precision = TYPE_PRECISION (integer_type_node);
   options->wchar_precision = TYPE_PRECISION (wchar_type_node);
   options->unsigned_wchar = TREE_UNSIGNED (wchar_type_node);
-  /* This can be uncommented when 1) This all happens before
-     cpp_post_options() (needed for __CHAR_UNSIGNED__ builtin), which
-     in turn requires wchat_type_node to be set up properly by then,
-     and 2) tradcpp is integrated, so that the preprocessors don't
-     need to handle the command-line options and the specs in gcc.c
-     can be updated.
-
-     options->unsigned_char = !flag_signed_char; */
-
+  options->unsigned_char = !flag_signed_char;
   options->warn_multichar = warn_multichar;
   options->stdc_0_in_system_headers = STDC_0_IN_SYSTEM_HEADERS;
 

diff --git a/gcc/cpphash.c b/gcc/cpphash.c
index 69e1a23..a90ec9b 100644 (file)
--- a/gcc/cpphash.c
+++ b/gcc/cpphash.c
@@ -72,7 +72,6 @@ _cpp_init_hashtable (pfile, table)
   s->n_defined         = cpp_lookup (pfile, DSC("defined"));
   s->n_true            = cpp_lookup (pfile, DSC("true"));
   s->n_false           = cpp_lookup (pfile, DSC("false"));
-  s->n__STRICT_ANSI__   = cpp_lookup (pfile, DSC("__STRICT_ANSI__"));
   s->n__VA_ARGS__       = cpp_lookup (pfile, DSC("__VA_ARGS__"));
   s->n__VA_ARGS__->flags |= NODE_DIAGNOSTIC;
 }

diff --git a/gcc/cpphash.h b/gcc/cpphash.h
index dcbb4fc..7be439f 100644 (file)
--- a/gcc/cpphash.h
+++ b/gcc/cpphash.h
@@ -188,7 +188,6 @@ struct spec_nodes
   cpp_hashnode *n_defined;             /* defined operator */
   cpp_hashnode *n_true;                        /* C++ keyword true */
   cpp_hashnode *n_false;               /* C++ keyword false */
-  cpp_hashnode *n__STRICT_ANSI__;      /* STDC_0_IN_SYSTEM_HEADERS */
   cpp_hashnode *n__VA_ARGS__;          /* C99 vararg macros */
 };
 

diff --git a/gcc/cppinit.c b/gcc/cppinit.c
index 4f2cc8e..f8e9cd5 100644 (file)
--- a/gcc/cppinit.c
+++ b/gcc/cppinit.c
@@ -500,7 +500,7 @@ cpp_create_reader (lang)
   CPP_OPTION (pfile, char_precision) = CHAR_BIT;
   CPP_OPTION (pfile, wchar_precision) = CHAR_BIT * sizeof (int);
   CPP_OPTION (pfile, int_precision) = CHAR_BIT * sizeof (int);
-  CPP_OPTION (pfile, unsigned_char) = !DEFAULT_SIGNED_CHAR;
+  CPP_OPTION (pfile, unsigned_char) = 0;
   CPP_OPTION (pfile, unsigned_wchar) = 1;
 
   /* It's simplest to just create this struct whether or not it will
@@ -694,25 +694,16 @@ init_builtins (pfile)
 
   if (CPP_OPTION (pfile, cplusplus))
     _cpp_define_builtin (pfile, "__cplusplus 1");
-
-  if (CPP_OPTION (pfile, objc))
+  else if (CPP_OPTION (pfile, objc))
     _cpp_define_builtin (pfile, "__OBJC__ 1");
+  else if (CPP_OPTION (pfile, lang) == CLK_ASM)
+    _cpp_define_builtin (pfile, "__ASSEMBLER__ 1");
 
   if (CPP_OPTION (pfile, lang) == CLK_STDC94)
     _cpp_define_builtin (pfile, "__STDC_VERSION__ 199409L");
   else if (CPP_OPTION (pfile, c99))
     _cpp_define_builtin (pfile, "__STDC_VERSION__ 199901L");
 
-  if (CPP_OPTION (pfile, unsigned_char))
-    _cpp_define_builtin (pfile, "__CHAR_UNSIGNED__ 1");
-
-  if (CPP_OPTION (pfile, lang) == CLK_STDC89
-      || CPP_OPTION (pfile, lang) == CLK_STDC94
-      || CPP_OPTION (pfile, lang) == CLK_STDC99)
-    _cpp_define_builtin (pfile, "__STRICT_ANSI__ 1");
-  else if (CPP_OPTION (pfile, lang) == CLK_ASM)
-    _cpp_define_builtin (pfile, "__ASSEMBLER__ 1");
-
   if (pfile->cb.register_builtins)
     (*pfile->cb.register_builtins) (pfile);
 }
@@ -1158,9 +1149,7 @@ new_pending_directive (pend, text, handler)
   DEF_OPT("fno-show-column",          0,      OPT_fno_show_column)            \
   DEF_OPT("fpreprocessed",            0,      OPT_fpreprocessed)              \
   DEF_OPT("fshow-column",             0,      OPT_fshow_column)               \
-  DEF_OPT("fsigned-char",             0,      OPT_fsigned_char)               \
   DEF_OPT("ftabstop=",                no_num, OPT_ftabstop)                   \
-  DEF_OPT("funsigned-char",           0,      OPT_funsigned_char)             \
   DEF_OPT("h",                        0,      OPT_h)                          \
   DEF_OPT("idirafter",                no_dir, OPT_idirafter)                  \
   DEF_OPT("imacros",                  no_fil, OPT_imacros)                    \
@@ -1365,12 +1354,6 @@ cpp_handle_option (pfile, argc, argv, ignore)
        case OPT_fno_show_column:
          CPP_OPTION (pfile, show_column) = 0;
          break;
-       case OPT_fsigned_char:
-         CPP_OPTION (pfile, unsigned_char) = 0;
-         break;
-       case OPT_funsigned_char:
-         CPP_OPTION (pfile, unsigned_char) = 1;
-         break;
        case OPT_ftabstop:
          /* Silently ignore empty string, non-longs and silly values.  */
          if (arg[0] != '\0')

diff --git a/gcc/cppmacro.c b/gcc/cppmacro.c
index c7a08f2..797a304 100644 (file)
--- a/gcc/cppmacro.c
+++ b/gcc/cppmacro.c
@@ -174,14 +174,17 @@ builtin_macro (pfile, node)
 
       /* __STDC__ has the value 1 under normal circumstances.
         However, if (a) we are in a system header, (b) the option
-        stdc_0_in_system_headers is true, and (c) __STRICT_ANSI__ is
-        not defined, then it has the value 0.  */
+        stdc_0_in_system_headers is true (set by target config), and
+        (c) we are not in strictly conforming mode, then it has the
+        value 0.  */
     case BT_STDC:
       {
        int stdc;
+       enum c_lang lang = CPP_OPTION (pfile, lang);
        if (CPP_IN_SYSTEM_HEADER (pfile)
            && CPP_OPTION (pfile, stdc_0_in_system_headers)
-           && pfile->spec_nodes.n__STRICT_ANSI__->type == NT_VOID)
+           && !(lang == CLK_STDC89 || lang == CLK_STDC94
+                || lang == CLK_STDC99))  /* || lang == CLK_CXX98 ? */
          stdc = 0;
        else
          stdc = 1;