diff -Naur sources/gcc/tree-vect-slp.c sources.patch/gcc/tree-vect-slp.c
--- sources/gcc/tree-vect-slp.c	2012-03-12 12:31:42.000000000 +0100
+++ sources.patch/gcc/tree-vect-slp.c	2012-03-20 13:36:46.000000000 +0100
@@ -2450,7 +2450,7 @@
         }
 
       /* Allocate memory for vectorized defs.  */
-      vec_defs = VEC_alloc (tree, heap, number_of_vects);
+      vec_defs = VEC_alloc (tree, heap, number_of_vects + 1);
 
       /* For reduction defs we call vect_get_constant_vectors (), since we are
          looking for initial loop invariant values.  */
@@ -2827,7 +2827,7 @@
 
   if (!SLP_TREE_VEC_STMTS (node))
     {
-      SLP_TREE_VEC_STMTS (node) = VEC_alloc (gimple, heap, vec_stmts_size);
+      SLP_TREE_VEC_STMTS (node) = VEC_alloc (gimple, heap, vec_stmts_size + 1);
       SLP_TREE_NUMBER_OF_VEC_STMTS (node) = vec_stmts_size;
     }
 
diff -Naur sources/gcc/tree-vect-stmts.c sources.patch/gcc/tree-vect-stmts.c
--- sources/gcc/tree-vect-stmts.c	2012-03-12 12:31:42.000000000 +0100
+++ sources.patch/gcc/tree-vect-stmts.c	2012-03-20 15:14:28.000000000 +0100
@@ -2954,7 +2954,7 @@
       FOR_EACH_VEC_ELT (tree, vec_oprnds0, i, vop0)
         {
 	  vop1 = ((op_type == binary_op || op_type == ternary_op)
-		  ? VEC_index (tree, vec_oprnds1, i) : NULL_TREE);
+		  ? ((i < VEC_length(tree, vec_oprnds1))?VEC_index (tree, vec_oprnds1, i) : VEC_index (tree, vec_oprnds1, VEC_length(tree, vec_oprnds1) - 1)) : NULL_TREE);
 	  vop2 = ((op_type == ternary_op)
 		  ? VEC_index (tree, vec_oprnds2, i) : NULL_TREE);
 	  new_stmt = gimple_build_assign_with_ops3 (code, vec_dest,