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Re: How to disable sibcall optimization?

To: Richard Henderson <rth at cygnus dot com>
Subject: Re: How to disable sibcall optimization?
From: Jan Hubicka <hubicka at atrey dot karlin dot mff dot cuni dot cz>
Date: Fri, 24 Mar 2000 16:00:46 +0100
Cc: egcs at egcs dot cygnus dot com
References: <20000322121213.C8072@atrey.karlin.mff.cuni.cz> <20000324015740.A19110@cygnus.com>

> On Wed, Mar 22, 2000 at 12:12:13PM +0100, Jan Hubicka wrote:
> > It looks like there is no way to disable sibcalls easilly. Why?
> 
> No reason.
I personally think that the performance regressions caused by the early
flowgraph construction and jump mentioned in this email are reason, but OK. I
will try to figure out what really happends w/o such switch.
It looks to me, that it is not too hard to implement it for my testing
purposes temporary now.
The slowdowns caused by latest snapshot are quite notable (at least
on Athlon/spec2000 approx 15%)

Honza
> 
> 
> r~

Follow-Ups:
- Re: How to disable sibcall optimization?
  - From: Richard Henderson

References:
- How to disable sibcall optimization?
  - From: Jan Hubicka
- Re: How to disable sibcall optimization?
  - From: Richard Henderson

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