Move definition of 'thenan' to its own object file in order to save space.

From-SVN: r29371

gcc/ChangeLog

+Mon Sep 13 10:01:33 1999  Nick Clifton  <nickc@cygnus.com>
+
+	* config/fp-bit.c: Define L_thenan_sf or L_thenan_df (as
+	appropriate) if FINE_GRAINED_LIBRARIES is not defined.
+	(nan): Return _thenan_sf or _thenan_df as appropriate.
+	(L_thenan_sf): Define _thenan_sf.
+	(L_thenan_df): Define _thenan_df.
+
+	* Makefile.in (FPBIT_FUNCS): Add _thenan_sf.
+	(DPBIT_FUNCS): Add _thenan_df.
+
 Mon Sep 13 09:38:53 1999  Andreas Schwab  <schwab@suse.de>
 
 	* tree.c (fix_sizetype):  Exchange the types for TYPE_SIZE and

gcc/Makefile.in

@@ -733,12 +733,12 @@ LIB2FUNCS_EH = _eh
 FPBIT_FUNCS = _pack_sf _unpack_sf _addsub_sf _mul_sf _div_sf \
     _fpcmp_parts_sf _compare_sf _eq_sf _ne_sf _gt_sf _ge_sf \
     _lt_sf _le_sf _si_to_sf _sf_to_si _negate_sf _make_sf \
-    _sf_to_df
+    _sf_to_df _thenan_sf
 
 DPBIT_FUNCS = _pack_df _unpack_df _addsub_df _mul_df _div_df \
     _fpcmp_parts_df _compare_df _eq_df _ne_df _gt_df _ge_df \
     _lt_df _le_df _si_to_df _df_to_si _negate_df _make_df \
-    _df_to_sf
+    _df_to_sf _thenan_df
 
 # The files that "belong" in CONFIG_H are deliberately omitted
 # because having them there would not be useful in actual practice.

gcc/config/fp-bit.c

@@ -90,6 +90,11 @@ Boston, MA 02111-1307, USA.  */
 #define L_make_df
 #define L_sf_to_df
 #define L_df_to_sf
+#ifdef FLOAT
+#define L_thenan_sf
+#else
+#define L_thenan_df
+#endif
 #endif
 
 /* The following macros can be defined to change the behaviour of this file:
@@ -389,13 +394,26 @@ FLO_union_type;
 #define isinf(x) 0
 #else
 
+#if   defined L_thenan_sf
+const fp_number_type __thenan_sf = { CLASS_SNAN };
+#elif defined L_thenan_df
+const fp_number_type __thenan_df = { CLASS_SNAN };
+#elif defined FLOAT
+extern const fp_number_type __thenan_sf;
+#else
+extern const fp_number_type __thenan_df;
+#endif
+
 INLINE
 static fp_number_type *
 nan ()
 {
-  static fp_number_type thenan;
-
-  return &thenan;
+  /* Discard the const qualifier... */
+#ifdef FLOAT  
+  return (fp_number_type *) (& __thenan_sf);
+#else
+  return (fp_number_type *) (& __thenan_df);
+#endif
 }
 
 INLINE