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Optimisation; -On vs -f<something>
- To: egcs at cygnus dot com
- Subject: Optimisation; -On vs -f<something>
- From: Nix <nix-egcs at esperi dot demon dot co dot uk>
- Date: Sat, 25 Oct 1997 10:34:31 +0100 (BST)
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 that switching optimisation level; this stops
realistic tuning for speed vs size, for instance (and on the machine this was
being tested on, any major size increase translates into a massive speed
decrease due to increased paging).
Will this annoying state of affairs be the case in egcs as well?