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Re: Enabling -frename-registers?
- From: Eric Botcazou <ebotcazou at adacore dot com>
- To: Bernd Schmidt <bschmidt at redhat dot com>
- Cc: gcc-patches at gcc dot gnu dot org, Jeff Law <law at redhat dot com>
- Date: Wed, 27 Apr 2016 09:11:01 +0200
- Subject: Re: Enabling -frename-registers?
- Authentication-results: sourceware.org; auth=none
- References: <56AB9759 dot 407 at t-online dot de> <5713DD2C dot 6080402 at redhat dot com> <571F6299 dot 30308 at redhat dot com>
> @@ -8562,7 +8563,8 @@ debug information format adopted by the
> make debugging impossible, since variables no longer stay in
> a ``home register''.
>
> -Enabled by default with @option{-funroll-loops} and @option{-fpeel-loops}.
> +Enabled by default with @option{-funroll-loops} and @option{-fpeel-loops},
> +and also enabled at levels @option{-O2} and @option{-O3}.
OPT_LEVELS_2_PLUS includes -Os since it's basically -O2.
--
Eric Botcazou