Re: How to dump all the optimization flags enabled?

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To: Vladimir Simonov <Vladimir.Simonov@xxxxxxxxxxx>, Andrew Haley <aph@xxxxxxxxxx>
Subject: Re: How to dump all the optimization flags enabled?
From: John Love-Jensen <eljay@xxxxxxxxx>
Date: Thu, 29 Mar 2007 10:27:17 -0500
Cc: MSX to GCC <gcc-help@xxxxxxxxxxx>
In-reply-to: <460BD987.6070000@xxxxxxxxxxx>
User-agent: Microsoft-Entourage/11.3.3.061214

Hi Vladimir,

>Do you know a way to turn on optimization flags step by step from -O0 till -O2?

No, not possible.

Not all optimizations are controlled by specific flags.  Some are controlled
by -O setting.

And -O0 disables all optimizations, even those specified with a specific
flag.

Sincerely,
--Eljay

References:
- Re: How to dump all the optimization flags enabled?
  - From: Vladimir Simonov

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