[Bug tree-optimization/51058] [4.7 Regression] ICE: gimple check: expected gimple_assign(error_mark), have gimple_call() in gimple_assign_rhs_code, at gimple.h:1992

["irar at il dot ibm.com" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51058

--- Comment #4 from Ira Rosen <irar at il dot ibm.com> 2011-11-09 17:40:26 UTC ---
Thanks.

Index: tree-vect-slp.c
===================================================================
--- tree-vect-slp.c     (revision 181190)
+++ tree-vect-slp.c     (working copy)
@@ -2191,7 +2191,7 @@ vect_get_constant_vectors (tree op, slp_tree slp_n
   VEC (tree, heap) *voprnds = VEC_alloc (tree, heap, number_of_vectors);
   bool constant_p, is_store;
   tree neutral_op = NULL;
-  enum tree_code code = gimple_assign_rhs_code (stmt);
+  enum tree_code code = gimple_expr_code (stmt);
   gimple def_stmt;
   struct loop *loop;

@@ -2287,22 +2287,32 @@ vect_get_constant_vectors (tree op, slp_tree slp_n
         {
           if (is_store)
             op = gimple_assign_rhs1 (stmt);
-          else if (gimple_assign_rhs_code (stmt) != COND_EXPR)
-            op = gimple_op (stmt, op_num + 1);
-         else
+          else
            {
-             if (op_num == 0 || op_num == 1)
+             switch (code)
                {
-                 tree cond = gimple_assign_rhs1 (stmt);
-                 op = TREE_OPERAND (cond, op_num);
+                 case COND_EXPR:
+                   if (op_num == 0 || op_num == 1)
+                     {
+                       tree cond = gimple_assign_rhs1 (stmt);
+                       op = TREE_OPERAND (cond, op_num);
+                     }
+                   else
+                     {
+                       if (op_num == 2)
+                         op = gimple_assign_rhs2 (stmt);
+                       else
+                         op = gimple_assign_rhs3 (stmt);
+                     }
+                   break;
+
+                 case CALL_EXPR:
+                   op = gimple_call_arg (stmt, op_num);
+                   break;
+
+                 default:
+                   op = gimple_op (stmt, op_num + 1);
                }
-             else
-               {
-                 if (op_num == 2)
-                   op = gimple_assign_rhs2 (stmt);
-                 else
-                   op = gimple_assign_rhs3 (stmt);
-               }
            }

           if (reduc_index != -1)