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Re: libgcc: strange optimization
- From: Andreas Schwab <schwab at redhat dot com>
- To: Hans-Peter Nilsson <hp at bitrange dot com>
- Cc: Ulrich Weigand <uweigand at de dot ibm dot com>, Richard Guenther <richard dot guenther at gmail dot com>, Ian Lance Taylor <iant at google dot com>, Mikael Pettersson <mikpe at it dot uu dot se>, Michael Walle <michael at walle dot cc>, Georg-Johann Lay <avr at gjlay dot de>, Richard Henderson <rth at redhat dot com>, gcc at gcc dot gnu dot org
- Date: Thu, 04 Aug 2011 09:29:19 +0200
- Subject: Re: libgcc: strange optimization
- References: <201108030911.p739BZri018360@d06av02.portsmouth.uk.ibm.com> <alpine.BSF.2.00.1108032009060.75956@dair.pair.com>
Hans-Peter Nilsson <hp@bitrange.com> writes:
> To make sure, it'd be nice if someone could perhaps grep an
> entire GNU/Linux-or-other distribution including the kernel for
> uses of asm-declared *local* registers that don't directly feed
> into asms and not being the stack-pointer?
One frequent candidate is the global pointer.
Andreas.
--
Andreas Schwab, schwab@redhat.com
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