[PATCH] D139723: [OpenMP][AMDGPU] Enable use of abs labs and llabs math functions in C code

[Matt Arsenault via Phabricator via cfe-commits]

arsenm added a comment.

In D139723#3984846 <https://reviews.llvm.org/D139723#3984846>, @jdoerfert wrote:

> I'm not 100% sure if this was excluded on purpose or not. FWIW, in C, these functions are not defined in math.h (https://en.cppreference.com/w/c/numeric/math/abs), but in C++ they are (https://en.cppreference.com/w/cpp/numeric/math/abs).
>
> Once we enable libm_gpu it might not make a difference. For now, I'm OK with this if it doesn't break peoples code.

Should there be a separate builtin header corresponding to stdlib.h?


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https://reviews.llvm.org/D139723