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Re: -fno-tree-cselim not working?
From: Jakub Jelinek <jakub@redhat.com>
Date: Fri, 26 Oct 2007 09:09:03 +0200
> MEMs in current function's stack frame can be considered safe as
> well.
Unless they are passed by reference down into functions or
a reference to them is assigned into an externally visible
structure.
We actually have cases in the Linux kernel where this happens
as wait queues are on the stack and they are locked objects.