c-cppbuiltin.c (builtin_define_with_hex_fp_value): Always expand when using -fgo-dump-spec.

	* c-cppbuiltin.c (builtin_define_with_hex_fp_value): Always expand
	when using -fgo-dump-spec.

From-SVN: r275352

gcc/c-family/ChangeLog

+2019-09-03  Ian Lance Taylor  <iant@golang.org>
+
+	* c-cppbuiltin.c (builtin_define_with_hex_fp_value): Always expand
+	when using -fgo-dump-spec.
+
 2019-09-02  Martin Liska  <mliska@suse.cz>
 
 	PR c++/91155

gcc/c-family/c-cppbuiltin.c

@@ -1644,6 +1644,7 @@ builtin_define_with_hex_fp_value (const char *macro,
   /* This is very expensive, so if possible expand them lazily.  */
   if (lazy_hex_fp_value_count < LAZY_HEX_FP_VALUES_CNT
       && flag_dump_macros == 0
+      && flag_dump_go_spec == NULL
       && !cpp_get_options (parse_in)->traditional)
     {
       if (lazy_hex_fp_value_count == 0)