contrib/gcc/tree-vn.c

83 vn_compute (tree expr, hashval_t val)
87   gcc_assert (expr);
88   gcc_assert (!expr->common.ann
89 	      || expr->common.ann->common.type != STMT_ANN);
91   val = iterative_hash_expr (expr, val);
241 vn_add (tree expr, tree val)
243   vn_add_with_vuses (expr, val, NULL);
252 vn_add_with_vuses (tree expr, tree val, VEC (tree, gc) *vuses)
258   new_pair->e = expr;
261   new_pair->hashcode = vn_compute (expr, 0);
268   set_value_handle (expr, val);
270     add_to_value (val, expr);
280 vn_lookup (tree expr, tree stmt)
282   return vn_lookup_with_vuses (expr, shared_vuses_from_stmt (stmt));
291 vn_lookup_with_vuses (tree expr, VEC (tree, gc) *vuses)
297   if (is_gimple_min_invariant (expr))
298     return expr;
300   vep.e = expr;
302   vep.hashcode = vn_compute (expr, 0);
330 print_creation_to_file (tree v, tree expr, VEC (tree, gc) *vuses)
335   print_generic_expr (dump_file, expr, dump_flags);
360 vn_lookup_or_add (tree expr, tree stmt)
362   tree v = vn_lookup (expr, stmt);
367       v = make_value_handle (TREE_TYPE (expr));
372 	print_creation_to_file (v, expr, vuses);
375       vn_add_with_vuses (expr, v, vuses);
378   set_value_handle (expr, v);
402 vn_lookup_or_add_with_vuses (tree expr, VEC (tree, gc) *vuses)
404   tree v = vn_lookup_with_vuses (expr, vuses);
407       v = make_value_handle (TREE_TYPE (expr));
411 	print_creation_to_file (v, expr, vuses);
414       vn_add_with_vuses (expr, v, vuses);
417   set_value_handle (expr, v);
430 get_value_handle (tree expr)
433   if (is_gimple_min_invariant (expr))
434     return expr;
436   if (TREE_CODE (expr) == SSA_NAME)
437     return SSA_NAME_VALUE (expr);
438   else if (EXPR_P (expr) || DECL_P (expr) || TREE_CODE (expr) == TREE_LIST
439 	   || TREE_CODE (expr) == CONSTRUCTOR)
441       tree_ann_common_t ann = tree_common_ann (expr);