Bradley Lucier <luc...@math.purdue.edu> writes:

> I've never seen the answer to the following question:  Why do some
> versions of gcc that I build not have string substitutions in error
> messages?

Perhaps you configured with --disable-intl?


> So, is -fschedule-insns an option to be avoided?

-fschedule-insns should be avoided on Intel architectures.  In general
-fschedule-insns tends to increase register lifespan, and because of the
small number of available registers this can sometimes befuddle the
register allocator, especially when asm instructions as used.

On PPC -fschedule-insns is normally beneficial, and it is turned on by
-O2.

Ian

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