PERFORCE change 123261 for review

[Xin LI]

http://perforce.freebsd.org/chv.cgi?CH=123261

Change 123261 by delphij at delphij_odin on 2007/07/10 09:40:59

	Actually commit the previous change.  I have committed from wrong tree :-(

Affected files ...

.. //depot/projects/delphij_fork/contrib/gcc/tree-ssa-loop-niter.c#3 edit

Differences ...

==== //depot/projects/delphij_fork/contrib/gcc/tree-ssa-loop-niter.c#3 (text+ko) ====

@@ -1747,6 +1747,12 @@
     {
       bb = bbs[i];
 
+      /* If BB is not executed in each iteration of the loop, we cannot
+	 use the operations in it to infer reliable upper bound on the
+	 # of iterations of the loop.  */
+      if (!dominated_by_p (CDI_DOMINATORS, loop->latch, bb))
+	continue;
+
       for (bsi = bsi_start (bb); !bsi_end_p (bsi); bsi_next (&bsi))
         {
 	  tree stmt = bsi_stmt (bsi);