[PATCH] D79344: [cuda] Start diagnosing variables with bad target.

[Artem Belevich via Phabricator via cfe-commits]

tra added a comment.

We're calling `copysign( int, double)`. The standard library provides `copysign(double, double)`, CUDA provides only `copysign(float, double)`.  As far as C++ is concerned, both require one type conversion. I guess previously we would give `__device__` one provided by CUDA a higher preference, considering that the callee is a device function. Now both seem to have equal weight. I'm not sure how/why,


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https://reviews.llvm.org/D79344