Compilation error when using in NVRTC with nvc++ as C++ compiler

[jszuppe]

#include <cuda/std/climits>

constexpr double a = __DBL_DENORM_MIN__;
using T = decltype(a);

When I compile the code presented above with NVRTC and nvc++ (23.1) as C++ compiler I'm getting:

test_kernel.cu(4): error: floating constant is out of range
  constexpr double a = __DBL_DENORM_MIN__;

Reproducer and compilation command in the gist: https://gist.github.com/jszuppe/79645a85a442cc0c46556d1aadc5c782

What's funny is that when I use g++/clang or older nvc++ (21.1) as C++ compiler it works fine. Same goes for the mentioned code and nvcc.

[wmaxey]

I'll do some digging, maybe some version of NVRTC that NVC++ is using has an issue. If I can get a reproducer of this on say CTK 12.0/12.1 then it might help pinpoint if this is a compiler issue or our issue.

[jszuppe]

I'll do some digging, maybe some version of NVRTC that NVC++ is using has an issue. If I can get a reproducer of this on say CTK 12.0/12.1 then it might help pinpoint if this is a compiler issue or our issue.

I'll have to double check tomorrow, but I think the same nvrtc was used both with g++ and nvc++. That's why it's odd.

[miscco]

I will try and reduce / reproduce this tomorrow. I have some other nvrtc bugs to file anyway

[jrhemstad]

This is now tracked by #1177