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Re: Add a param to decide stack slot sharing at -O0
- From: Eric Botcazou <ebotcazou at adacore dot com>
- To: Andi Kleen <andi at firstfloor dot org>
- Cc: gcc-patches at gcc dot gnu dot org, Easwaran Raman <eraman at google dot com>
- Date: Wed, 09 Oct 2013 09:24:10 +0200
- Subject: Re: Add a param to decide stack slot sharing at -O0
- Authentication-results: sourceware.org; auth=none
- References: <CAPK5YPb29VkSpstDP9xMTC5P4jSHxRwEh5_Wzmpk9wGR31XE2g at mail dot gmail dot com> <87d2nfyxfq dot fsf at tassilo dot jf dot intel dot com>
> Seems like a odd thing for a param. If the compile time increase is very
> small (< 1%?) I would just make the new threshold default.
I don't understand the 'odd' here... params are exactly for this purpose, i.e.
to avoid hardcoding magic numbers in the compiler, so please elaborate.
--
Eric Botcazou