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Re: [PATCH] Disable -fno-reorder-blocks-and-partition if no -fprofile-use to avoid unnecessary overhead
- From: Andi Kleen <andi at firstfloor dot org>
- To: Bernhard Reutner-Fischer <rep dot dot dot nop at gmail dot com>
- Cc: Andi Kleen <andi at firstfloor dot org>, Jeff Law <law at redhat dot com>, Teresa Johnson <tejohnson at google dot com>, "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, Jan Hubicka <hubicka at ucw dot cz>, Xinliang David Li <davidxl at google dot com>
- Date: Sun, 27 Sep 2015 00:02:26 +0200
- Subject: Re: [PATCH] Disable -fno-reorder-blocks-and-partition if no -fprofile-use to avoid unnecessary overhead
- Authentication-results: sourceware.org; auth=none
- References: <CAAe5K+WwdWZyp96ODECAxPsu-nf97akiKzremnhPbiYGS2E_bw at mail dot gmail dot com> <87twqisaht dot fsf at tassilo dot jf dot intel dot com> <CAAe5K+UP9w=P6q5EKRTdJ2zgXmhTZgnxYgJbQfXse7nLDNWuag at mail dot gmail dot com> <56057DFB dot 2060703 at redhat dot com> <20150925175907 dot GM1747 at two dot firstfloor dot org> <DFAA8BF4-7D4B-435A-89A4-899CB3942DFA at gmail dot com>
> +@item partition-cold-min-freq
> +When using doing function partitioning and there is no profile information
> +consider edges below this frequency cold. Setting to zero disables
> +any function splitting without profile information.
>
> Trouble parsing "using doing", nice hack otherwise.
Thanks. I removed the extra word.
Any additional testing welcome.
-Andi