re PR tree-optimization/21272 (SSA_NAME def follows use with -ftree-vectorize)

        PR tree-optimization/21272
        * tree-if-conv.c (find_phi_replacement_condition): Fix think-o.

        * gcc.dg/vect/vect-ifcvt-10.c: New.

From-SVN: r98998

gcc/ChangeLog

+2005-04-29  Devang Patel  <dpatel@apple.com>
+
+	PR tree-optimization/21272
+	* tree-if-conv.c (find_phi_replacement_condition): Fix think-o.
+	
 2005-04-29  Kazu Hirata  <kazu@cs.umass.edu>
 
 	* tree-flow-inline.h: Fix a comment typo.

gcc/testsuite/ChangeLog

+2005-04-29  Devang Patel  <dpatel@apple.com>
+
+	PR tree-optimization/21272
+	* gcc.dg/vect/vect-ifcvt-10.c: New test.
+	
 2005-04-29  Jakub Jelinek  <jakub@redhat.com>
 
 	PR fortran/13082

gcc/testsuite/gcc.dg/vect/vect-ifcvt-10.c

+/* PR 21272 */
+/* { dg-do compile } */
+double
+foo (int j, double *v, double x)
+{
+  int i;
+  for (i = 0; i < j; i++)
+    if (v[i] < x)
+      x = v[i];
+  return x;
+}

gcc/tree-if-conv.c

@@ -701,7 +701,7 @@ find_phi_replacement_condition (struct loop *loop,
       basic_block tmp_bb;
       tmp_bb = first_bb;
       first_bb = second_bb;
-      second_bb = first_bb;
+      second_bb = tmp_bb;
     }
 
   /* Check if FIRST_BB is loop header or not.  */