https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67443

--- Comment #2 from wmi at google dot com ---
Another problem is found in true_dependence_1 in alias.c. true_mem_addr or
true_x_addr got after calling get_addr may be used as inputs of
memrefs_conflict_p. However memrefs_conflict_p expects to use VALUE type nodes
as its inputs, so the values of the memory addresses can be comparable. Only
find_base_term and base_alias_check should use true_mem_addr/true_x_addr in
true_dependence_1.

This problem is not a correctness issue, but may affect the effectiveness of
dse/postreload...

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