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Re: Optimisation; -On vs -f<something>
- To: Nix <nix-egcs at esperi dot demon dot co dot uk>
- Subject: Re: Optimisation; -On vs -f<something>
- From: Jeffrey A Law <law at cygnus dot com>
- Date: Sun, 26 Oct 1997 10:54:14 -0700
- cc: egcs at cygnus dot com
- Reply-To: law at cygnus dot com
In message <199710250934.KAA28975@esperi.demon.co.uk>you write:
> There seem to be a depressing number of optimisations (in gcc
> 2.7.2 at least) that are controlled by the optimisation level
> directly rather than being controlled by one of the flags
Can you give specific examples?
In general, I think adding lots of additional switches is the
wrong direction.
I think we should have -fspace or -Ospace, or whatever we want
to call it which retunes various algorithms in gcc to optimize
for space over speed.
jeff