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From: "wmi at google dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug rtl-optimization/67443] [5/6 regression] DSE removes required store instruction
Date: Sat, 17 Oct 2015 19:25:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67443

--- Comment #12 from wmi at google dot com ---
Yes, I agree it is a problem that memrefs_conflict_p doesn't take effect. But I
am still wondering even if memrefs_conflict_p doesn't take effect, the alias
oracle query in rtx_refs_may_alias_p should have returned may-alias for the
load and store. Why rtx_refs_may_alias_p failed to do that?