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Re: [PATCH] Call math_opt_barrier inside if
- From: Joseph Myers <joseph at codesourcery dot com>
- To: "H.J. Lu" <hjl dot tools at gmail dot com>
- Cc: GNU C Library <libc-alpha at sourceware dot org>
- Date: Thu, 14 Jan 2016 22:13:39 +0000
- Subject: Re: [PATCH] Call math_opt_barrier inside if
- Authentication-results: sourceware.org; auth=none
- References: <20160114214145 dot GA22984 at intel dot com>
On Thu, 14 Jan 2016, H.J. Lu wrote:
> Since floating-point operation may trigger floating-point exceptions,
> we call math_opt_barrier inside if to prevent code motion.
>
> Tested on x86-64. OK for trunk?
Please send a patch updating all implementations for which this issue is
applicable.
--
Joseph S. Myers
joseph@codesourcery.com