re PR middle-end/44020 (Failed to build 200.sixtrack in SPEC CPU 2K)

2010-05-07  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/44020
	* tree-ssa-pre.c (execute_pre): Do not remove dead inserted
	code when PRE is not yet initialized.

From-SVN: r159150

gcc/ChangeLog

+2010-05-07  Richard Guenther  <rguenther@suse.de>
+
+	PR tree-optimization/44020
+	* tree-ssa-pre.c (execute_pre): Do not remove dead inserted
+	code when PRE is not yet initialized.
+
 2010-05-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* config/mips/dbxmdebug.h: Remove.

gcc/tree-ssa-pre.c

@@ -4710,17 +4710,14 @@ execute_pre (bool do_fre)
   if (!run_scc_vn (do_fre))
     {
       if (!do_fre)
-	{
-	  remove_dead_inserted_code ();
-	  loop_optimizer_finalize ();
-	}
+	loop_optimizer_finalize ();
 
       return 0;
     }
+
   init_pre (do_fre);
   scev_initialize ();
 
-
   /* Collect and value number expressions computed in each basic block.  */
   compute_avail ();