saksham-joshi wrote:
> > Yeah! you are right that the size depends on the variable, but I never said
> > to create a variable.
> > Suppose I have two functions performing same process but one is returning
> > bool and other one is returning int.
> >
> > 1. bool fnc1() { return (_Bool)true; }
> > 2. int fnc2(){ return true; }
> >
> > Can you please tell me which of the above 2 function will be more efficient?
>
> Again, in this case the "efficiency" of these functions does not depend on
> how you declare true and false, but rather on what return type each function
> has.
>
> But the impact of type change is also questionable. Per modern calling
> conventions, the return value of a function is stored in a CPU register, and
> the size of that register is usually 4 or 8 bytes. Even if one decides to
> return a 1-byte value, there won't be much difference for the CPU. (Well, on
> x86 you can return the 1-byte value in AL, but this won't lead to faster
> code).
>
> > If this is also the case with Clang, then my work is done here.
>
> Yes, this is also the case.
Okay, I got it!
Thank you so much Mr. Ramosian Glider
https://github.com/llvm/llvm-project/pull/138713
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