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Re: What are the functions of -fno-strict-aliasing,-fno-strength-reduce,-fno-omit-frame-pointer

To: crossgcc <crossgcc at sources dot redhat dot com>
Subject: Re: What are the functions of -fno-strict-aliasing,-fno-strength-reduce,-fno-omit-frame-pointer
From: "Aaron J. Grier" <aaron at frye dot com>
Date: Wed, 22 Nov 2000 09:43:40 -0800
References: <CJECKKFHDOIBFEFBNFAGOEJLCBAA.zsz@chinadigipro.com>

On Wed, Nov 22, 2000 at 02:34:07PM +0800, zsz wrote:

> Why does kernel/Makefile

which kernel?

> set "-fno-omit-frame-pointer" for sched.c.  and I don't also
> understand "-fno-strict-aliasing" and "-fno-strength-reduce".  Who
> could give me some detailed explanation?  thank you very much in
> advance!

the gcc info pages have detailed explainations of all the -f options.

-- 
  Aaron J. Grier   |    Frye Electronics, Tigard, OR   |   aaron@frye.com
    "Calling anything from the x86 world a 'masterpiece' seems, to me,
     like putting a gold star on the best-looking fingerpainting in the
     special-needs Kindergarten class."  --  Wakko Warner

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References:
- What are the functions of -fno-strict-aliasing,-fno-strength-reduce,-fno-omit-frame-pointer
  - From: zsz

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