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Re: "-fno-unswitch-loops" option have no effect?

From: Paolo Bonzini <bonzini at gnu dot org>
To: ami_stuff <ami_stuff at o2 dot pl>
Cc: gcc at gcc dot gnu dot org
Date: Mon, 17 Aug 2009 15:34:55 +0200
Subject: Re: "-fno-unswitch-loops" option have no effect?
References: <5dd91bc1.7ff0289a.4a88a6a0.1e15f@o2.pl> <84fc9c000908170438t787f3e75w15c44dd8e9080a2d@mail.gmail.com> <171913d8.edfa43f.4a894dda.88a2c@o2.pl> <4A895B1A.1010501@gnu.org> <30c6dc7a.7a8af09d.4a895c36.c1c89@o2.pl>

On 08/17/2009 03:33 PM, ami_stuff wrote:

-m68060 -O3 -fno-unswitch-loops

and

-m68060 -O2 -finline-functions -fgcse-after-reload -ftree-vectorize -fpredictive-commoning

Some heuristics are tuned differently for -O2 and -O3. The only way to know is to look at the dumps.

Paolo

References:
- "-fno-unswitch-loops" option have no effect?
  - From: ami_stuff
- Re: "-fno-unswitch-loops" option have no effect?
  - From: Richard Guenther
- Re: "-fno-unswitch-loops" option have no effect?
  - From: ami_stuff
- Re: "-fno-unswitch-loops" option have no effect?
  - From: Paolo Bonzini
- Re: "-fno-unswitch-loops" option have no effect?
  - From: ami_stuff

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