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Re: liveness analysis with stack slots
- From: Andrew Haley <aph-gcc at littlepinkcloud dot COM>
- To: Maurizio Vitale <mav at cuma dot polymath-solutions dot lan>
- Cc: gcc-help at gcc dot gnu dot org
- Date: Fri, 6 Jul 2007 16:53:44 +0100
- Subject: Re: liveness analysis with stack slots
- References: <87ejjlpmsl.fsf@cuma.polymath-solutions.lan>
Maurizio Vitale writes:
>
>
> Can somebody shed some light on this and hint at why GCC (and the
> Intel compiler) decide that they cannot remove that code?
It would be easy for us to do so if you provided a test case. Without
one it's impossible. It doesn't look to me like the expression is
totally dead, but without the source I can't tell.
> I remember a few years ago GCC had problems with liveness analysis w/
> stack slots. Is that still the case?
I don't think so.
Andrew.