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From: Alexander Monakov <amonakov@ispras.ru>
To: Stefan Franke <stefan@franke.ms>
Cc: gcc-help@gcc.gnu.org
Subject: Re: C and C++ parser performing optimizations
Date: Sun, 2 Aug 2020 21:40:44 +0300 (MSK)	[thread overview]
Message-ID: <alpine.LNX.2.20.13.2008022131370.2454@monopod.intra.ispras.ru> (raw)
In-Reply-To: <00cd01d668f8$eb26b950$c1742bf0$@franke.ms>

On Sun, 2 Aug 2020, Stefan Franke wrote:

> So the parser performs unwanted and uncontrollable optimizations, which I
> consider bogus.

On occasion they are also incorrect.

My (possibly wrong or incomplete) understanding is that GCC does not have
internal separation of mandatory simplifications that need to be done in
the frontend (like constant folding in the context of integer constant
expressions) vs. optional simplifications (optimizing substitutions).
So it just does both at the same time.

Alexander

  reply	other threads:[~2020-08-02 18:40 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-02 18:15 Stefan Franke
2020-08-02 18:40 ` Alexander Monakov [this message]
2020-08-04  6:44   ` AW: " Stefan Franke
2020-08-04  7:13     ` Alexander Monakov
2020-08-04 15:33       ` Segher Boessenkool
2020-08-24 19:06     ` Gunther Nikl
2020-08-24 19:54       ` AW: " Stefan Franke

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