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Re: gcc optimisation problem

From: Ian Lance Taylor <iant at google dot com>
To: vikramsp <vikram2rhyme at gmail dot com>
Cc: gcc-help at gcc dot gnu dot org
Date: Wed, 06 Apr 2011 07:44:56 -0700
Subject: Re: gcc optimisation problem
References: <31332634.post@talk.nabble.com> <31333022.post@talk.nabble.com>

vikramsp <vikram2rhyme@gmail.com> writes:

> no i am not using any -O options. using only individual options
> but many of them are not woking. I have applied all the indivisual 
> -f* switches on the entire gcc torture testsuite. Interestingly i 
> found that only around 15 switches are giving some impact. Is
> there any testsuite which can be used to check each and
> every -f* switch. 

No, there is no such testsuite.

Many -f options are only effective if you also use -O.  This is
documented in the gcc manual.

Ian

References:
- gcc optimisation problem
  - From: vikramsp
- Re: gcc optimisation problem
  - From: vikramsp

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