'exp' support in bambu

[nikhil ghanathe]

Hello,

I am trying to synthesize a piece of code that has the exponentiation function (exp).

However, I get the following error when I synthesize it. 

Operation for which does not exist a functional unit in the resource library: exp in vertex: temp_26640_26658 with vertex type: REAL and vertex prec: 64 64

error -> Vertices not completely allocated

I am assuming that the message is trying to convey that a functional unit for 'exp' does not exist in the bambu library. Am I right?

If yes, how do I implement the exp function?

Thanks 

[Fabrizio Ferrandi]

Hello,

bambu follows the same conventions used by gcc and clang. In case you need libm functions such as exp, you need to pass the -lm options.

Once you pass this option bambu will link with the single and double precision libm functions.

Cheers,

Fabrizio