[parisc-linux] Glibc 2.2.4-2 No Optimizations = No Compliation

Matthew Wilcox willy@debian.org
Thu, 11 Oct 2001 15:03:26 +0100


On Thu, Oct 11, 2001 at 09:59:13AM -0400, Carlos O'Donell Jr. wrote:
> Really?
> How about unrolled loops? ;)

Sometimes.  More importantly, gcc stops doing stupid things with -O1,
particulalry shifting registers backwards and forwards with no net effect.

> True. But that really shouldn't make much difference since
> AFAIK inlining doesn't happen until -O2, but config.h just says...
> "You must have atleast -O1"

Not the case.  gcc will inline functions marked as such at -O1.  At -O3,
it decides for itself to inline some things.

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