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aliasing



I have a C++ ( really a C prog with a couple of overloaded fn's )
program which I'm fairly sure breaks the strict aliasing rules of
Gcc-2.95.1 

Where can find a copy of what these rules are , so I can fix my code ?


For a temporary fix I added -fno-strict-aliasing to the options and
expected a performance drop . However the program now runs 1% faster ???
(I assure you 1% is not a trival amount)

Using Slackware 3.9 + gcc 2.95.1 on AMD K6(x86)
options -O3 -fno-exceptions -funroll-loops -march=k6
-fomit-frame-pointer -ffast-math   ... etc

I can send 
source(100K) + exe's(50K) + data  etc.. 


Jason Moxham
jlm@maths.soton.ac.uk
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