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Date: Tue, 13 Aug 2013 05:45:55 +0200
From: Szabolcs Nagy <>
Subject: Re: Conformance issues to address after 0.9.12 release

* Rich Felker <> [2013-08-12 23:32:32 -0400]:
> Why the push/pop? Is there a reason you can't just store over top of
> the argument slot at 4(%esp) or even below the stack pointer at
> -4(%esp)? The latter would be unsafe if you ever wanted to read back
> the value since it could be clobbered asynchronously by a signal
> handler, but you don't want/need to read it back anyway.

ah ok
did not know the callee can modify those

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