re PR tree-optimization/47233 (IPA reference tends to explode in memory use with…

re PR tree-optimization/47233 (IPA reference tends to explode in memory use with -fprofile-generate)

	PR tree-optimization/47233
	* opts.c (common_handle_option): Disable ipa-reference with profile feedback.

From-SVN: r168700

gcc/ChangeLog

+2011-01-12  Jan Hubicka  <jh@suse.cz>
+
+	PR tree-optimization/47233
+	* opts.c (common_handle_option): Disable ipa-reference with profile feedback.
+
 2011-01-12  Nicola Pero  <nicola.pero@meta-innovation.com>	
 
 	* c-parser.c (c_parser_objc_at_property_declaration): Improved

gcc/opts.c

@@ -1561,6 +1561,11 @@ common_handle_option (struct gcc_options *opts,
 	opts->x_flag_value_profile_transformations = value;
       if (!opts_set->x_flag_inline_functions)
 	opts->x_flag_inline_functions = value;
+      /* FIXME: Instrumentation we insert makes ipa-reference bitmaps
+	 quadratic.  Disable the pass until better memory representation
+	 is done.  */
+      if (!opts_set->x_flag_ipa_reference && in_lto_p)
+        opts->x_flag_ipa_reference = false;
       break;
 
     case OPT_fshow_column: