On 6/12/07, Revital1 Eres <[EMAIL PROTECTED]> wrote:
Hello, I appreciate your help in figuring what is considered a valid sequence of operations for creating a new variable in the tree level. Is the following sequence OK - tmp_var = create_tmp_var (type, "_new_"); add_referenced_tmp_var (tmp_var); mark_sym_for_renaming (tmp_var); Or should I also use ssa functions as follows: temp = create_tmp_var (TREE_TYPE (expr), "pretmp"); add_referenced_tmp_var (temp);
newexpr = build (MODIFY_EXPR, TREE_TYPE (expr), temp, newexpr); name = make_ssa_name (temp, newexpr); TREE_OPERAND (newexpr, 0) = name;
you need an SSA_NAME to assign to in this case, using mark_sym_for_renaming does defer this to later so you can use tmp_var in the MODIFY_EXPR. The second form is prefered.
tsi_link_after (&tsi, newexpr, TSI_CONTINUE_LINKING);
That's unrelated and just inserts the MODIFY_EXPR. Richard.