(rs6000_cpu_cpp_builtins): Define __NO_FPRS__ when 'f' class registers will

not be available.

From-SVN: r100097

gcc/ChangeLog

+2005-05-24  Nick Clifton  <nickc@redhat.com>
+
+	* config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
+	__NO_FPRS__ when 'f' class registers will not be available. 
+
 2005-05-24  Kazuhiro Inaoka <inaoka.kazuhiro@renesas.com>
 
 	* config/m32r/m32r.c (m32r_expand_block_move):  Return 0 if

gcc/config/rs6000/rs6000-c.c

@@ -140,6 +140,10 @@ rs6000_cpu_cpp_builtins (cpp_reader *pfile)
       break;
     }
 
+  /* Let the compiled code know if 'f' class registers will not be available.  */
+  if (TARGET_SOFT_FLOAT || !TARGET_FPRS)
+    builtin_define ("__NO_FPRS__");
+
   targetm.resolve_overloaded_builtin = altivec_resolve_overloaded_builtin;
 }