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

[Michael Liao via Phabricator via cfe-commits]

hliao added a comment.

In D79344#2026025 <https://reviews.llvm.org/D79344#2026025>, @tra wrote:

> 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,


@yaxunl, that may be related to the change of overload resolution. Back to this change, that error should not be related to the non-local variable checks.


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