X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Ftree-vect-patterns.c;h=7fc107cafa9c83d2028d76ab8daffdbca9fe06bf;hb=09bcd759d4fe837296ff20dd0eeb0b71e64e06e4;hp=0d78882751338fb5abc992e338285382e78e1395;hpb=97594f7be7ee4321d26f44ef2a28849721947df6;p=pf3gnuchains%2Fgcc-fork.git

diff --git a/gcc/tree-vect-patterns.c b/gcc/tree-vect-patterns.c
index 0d788827513..7fc107cafa9 100644
--- a/gcc/tree-vect-patterns.c
+++ b/gcc/tree-vect-patterns.c
@@ -256,6 +256,8 @@ vect_recog_dot_prod_pattern (VEC (gimple, heap) **stmts, tree *type_in,
      we know that oprnd1 is the reduction variable (defined by a loop-header
      phi), and oprnd0 is an ssa-name defined by a stmt in the loop body.
      Left to check that oprnd0 is defined by a (widen_)mult_expr  */
+  if (TREE_CODE (oprnd0) != SSA_NAME)
+    return NULL;
 
   prod_type = half_type;
   stmt = SSA_NAME_DEF_STMT (oprnd0);