18 Oct
2002
18 Oct
'02
12:05 p.m.
Steve Harris wrote:
Hmmm... My experiments with c++, dsp code and gcc
(recent 2.96) did not
turn out very well. For some reason the optimiser totaly chokes on c++
code. I only tried one routine, and I'm no c++ expert, so its possible I
screwed something up, but it did not look encouraging. I will revisit this
and also try gcc3, which has much better c++ support IIRC.
from my experience the contrary is true. last time i checked the
assembly code produced by -O3 i found nothing to object to. that
was g++ 2.95 compiling drawing routines on rgb buffers (just ints,
no floats, but comparable to audio dsp in a way).
i admit i designed the code around what i expected the optimizer
to do to it, so yes, maybe you need a little experience to get it
right.
tim