Selective nvidia #pragma optionNV (expand all)

Question

I play with the nvidia unroll loops directive, but have not seen a way to selectively enable it.

Let's say that I have this ...

void testUnroll()
{
    #pragma optionNV(unroll all)
    for (...)
        ...
}

void testNoUnroll()
{
    for (...)
        ...
}

Here, I assume that both loops end in a roll out. To stop this, I think the solution will include resetting the directive after the block I want to affect, for example:

    #pragma optionNV(unroll all)
    for (...)
        ...
    #pragma optionNV(unroll default) //??

However, I do not know the reset keyword of reversal behavior for initial / standard setup. How can I do that? If anyone could point out some white papers for nvidia compiler directives that would be even better.

---

, -, #pragma optionNV(unroll *), (, ).

Answer 1

NVidia, :

#pragma unroll 1 .

#pragma unroll , , , .

, GLSL, :

#pragma optionNV(unroll)

- , , !