re PR tree-optimization/53098 (tree-vect-loop.c:1414:19: error: comparison…

re PR tree-optimization/53098 (tree-vect-loop.c:1414:19: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare])

2012-04-24  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/53098
	* tree-vect-loop.c (vect_analyze_loop_operations): Fixup
	comparison sign.

From-SVN: r186754

gcc/ChangeLog

+2012-04-24  Richard Guenther  <rguenther@suse.de>
+
+	PR tree-optimization/53098
+	* tree-vect-loop.c (vect_analyze_loop_operations): Fixup
+	comparison sign.
+
 2012-04-24  Andrew Pinski  <apinski@cavium.com>
 
 	PR tree-opt/33512

gcc/tree-vect-loop.c

@@ -1411,7 +1411,7 @@ vect_analyze_loop_operations (loop_vec_info loop_vinfo, bool slp)
   if ((LOOP_VINFO_NITERS_KNOWN_P (loop_vinfo)
        && (LOOP_VINFO_INT_NITERS (loop_vinfo) < vectorization_factor))
       || ((max_niter = max_stmt_executions_int (loop)) != -1
-	  && max_niter < vectorization_factor))
+	  && (unsigned HOST_WIDE_INT) max_niter < vectorization_factor))
     {
       if (vect_print_dump_info (REPORT_UNVECTORIZED_LOCATIONS))
         fprintf (vect_dump, "not vectorized: iteration count too small.");