From: Segher Boessenkool <segher@kernel.crashing.org>
To: "muzungu@gmx.net" <muzungu@gmx.net>
Cc: gcc-help@gcc.gnu.org
Subject: Re: gcc optimization options and lto (detailed info)
Date: Tue, 17 May 2022 18:05:57 -0500 [thread overview]
Message-ID: <20220517230557.GA25951@gate.crashing.org> (raw)
In-Reply-To: <062812e4-e912-4eaf-876c-91006a6c47a6@gmx.net>
On Tue, May 17, 2022 at 08:56:20AM +0200, muzungu--- via Gcc-help wrote:
> * -O<x> combines a collection of -f<xyz>
It does more than that. Each -O<x> enables many things that can be
separately enabled and disabled with -f<xxx> flags, but there are
hundreds if not thousands other things that are sirectly controlled by
optimisation level.
Segher
prev parent reply other threads:[~2022-05-17 23:06 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-17 6:56 muzungu
2022-05-17 8:30 ` Jonathan Wakely
[not found] ` <trinity-1d53f520-c371-471b-b6c2-0446d6ba8184-1652865880524@3c-app-gmx-bap04>
2022-05-18 10:23 ` Jonathan Wakely
[not found] ` <trinity-dba8f838-b88d-491b-a582-c9be885cb09e-1652951565751@3c-app-gmx-bs42>
2022-05-19 9:33 ` Jonathan Wakely
2022-05-17 8:54 ` Stefan Ring
2022-05-17 23:05 ` Segher Boessenkool [this message]
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