Al Boldi wrote:
[...] > void fn() {
long i = 9999999;
double x,y;
elapsed(1);
while (i--) fn2(&x,&y);
printf("%4lu ",elapsed(0));
}
You are not initializing x and y and with -Os at least my gcc really
uses floating point load/store operations to handle that code.
Maybe the coprocessor has a hard time normalizing certain garbage on the
stack, but without/with randomization the data comes from other
addresses and you're just lucky with the contents.
Does this also happens if you add a "x=0, y=0;" line to that function?
--
Paulo Marques - www.grupopie.com
Pointy-Haired Boss: I don't see anything that could stand in our way.
Dilbert: Sanity? Reality? The laws of physics?
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