Why does my code inline an Embedded MATLAB function even when I include a function call to eml.inline('never') in Real-Time Workshop 7.4 (R2009b)?

I have written an Embedded MATLAB (EML) function

     %#eml 

     function y = noinline1(x) 

     assert(all(size(x) == [10,10])); 

     y = subfcn(x); 

     function y = subfcn(x) 

     eml.inline('never'); 

     y = x;

and then I compile the code using

     emlc noinline1 -o noinline1x -report

Even though I specified it to not be inlined, it appears that it has been.

Answer 1

[MathWorks Support Team]

This is expected behavior for Real-Time Workshop 7.4 (R2009b).

The reason for this behavior is that subfunction was optimized out and the code was able to eliminate the function call.

Two possible optimizations which could have this effect include calls to the identity function, or calls to functions that always return the same constant value.