[Icc-avr] Saving floating point constants in flash

[bobgardner at aol.com]

Consider 'assigning' an integer to an fp var like x=3; or using integer numbers in an fp expression like y=13x+7;
I notice that the compiler loads the int and calls int2fp. I assume loading the float constants from flash must surely be faster than calling a subroutine, so adding a decimal point in that expression like this y=13.0*x+7.0; should load the fp numbers from flash. If I use a number like 13.0 several times, does the compiler keep track of all the fp constants and reuse them when possible? Trying to squeeze 10 lbs of stuff into a 5lb bag.....
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