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From: "glisse at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/57742] memset(malloc(n),0,n) -> calloc(n,1)
Date: Mon, 14 Oct 2013 20:53:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742

--- Comment #8 from Marc Glisse <glisse at gcc dot gnu.org> ---
Created attachment 31003
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31003&action=edit
walk_aliased_vdefs experiment

Incomplete patch I used for my previous comment.