FPGA Module Compiler optimization Question

[Dan Price]

My question below relates to the Labview FPGA module ver 1.1.

Does the Xilinx compiler optimize out static calculations? For example, if I were to have a multiply function that multiplies two hardcoded constants(not controls), say 4 and 2, would the compiler resolve this as a constant 8, or would hardware be built in that actually performs this calculation? (4x2 is trivial, but for more complicated cascading arithmetic operations, I want to include functions to perform these operations in code for easy modification and reference).

Any additional hard-to-find tips about compiler optimizations are welcomed in addition to responses to the above question.

Thanks,
~Dan Price

P.S. I'm new to the board and fairly new to labview, so any help with the above question is greatly appreciated!

[Ricardo_SR]

Hello Dan,

As a matter of fact yes. It makes a difference to specify the constants than placing controls. For gate usage, it is better to create constants.

Ricardo S.
National Instruments