Re: [PATCH] new makefile for fbcon

Matthias Andree (mandree@sx1.HRZ.Uni-Dortmund.DE)
13 Nov 1999 15:20:14 +0100


Dominik Kubla <dominik.kubla@uni-mainz.de> writes:

> I am not wholly convinced that inline assembler is really needed: after all
> the first C compilers didn't have it (AFAIK) and they were used to implement
> Unix (IIRC). But i guess that is leading us nowhere fast...

The competition has changed, it is about being fast, not about doing
something somebody else cannot do.

> And we have had problems there in the past: each time the compiler folks
> thought it wise to change optimization strategies...

The compiler will most certainly not break good design of your C source,
even if the optimizer changes. The actual compiler itself (which is
input independent and machine indepent except for inline assembly code)
which does the global optimizations has not changed a lot. Loop
unrolling, dependence detection and things don't change a lot in the way
they work.

-- 
Matthias Andree

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