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Re: [PATCH] x86-64: Align the stack in __tls_get_addr [BZ #21609]
On Thu, 6 Jul 2017, Carlos O'Donell wrote:
> Option (b) has been chosen for this release, so that's what we're doing for
> the release, but we can continue to discuss the optimization here.
>
> (1) Cost.
>
> No matter what you do it's extra instructions on the hot path forever.
What extra instructions on the hot path? I don't see any. There's no
need to check stack alignment on the hot path -- only on the slow path.
Alexadner