Re: Good practical language and OS agnostic text?

"Hans-Peter Diettrich" <DrDiettrich1@aol.com> wrote in message
> Life is too short for writing an full-blown heavily-optimizing
> production compiler from scratch, including its whole RTL.


Especially when there might only be difference of 2 or 3 times between
performance of the best and worst code.


My own compiler for x86-32 generates pretty awful code, and on a small
handful of mostly numeric benchmarks, it averages out about 2.5 x as
slow as gcc on it's highest optimisation setting. But, gcc often
recognises these benchmarks as doing nothing useful, so removes whole
sections of code!


The true factor is probably between 1 and 2, and for critical code, I just
use inline assembly code, so it's not real problem. I'm rewriting that
compiler at the moment, and will probably achieve somewhat better
performance, but don't worry about it too much.


--
Bartc

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