[PATCH] D79526: [CUDA][HIP] Workaround for resolving host device function against wrong-sided function

[Artem Belevich via Phabricator via cfe-commits]

tra accepted this revision.
tra added a comment.
This revision is now accepted and ready to land.

LGTM, modulo cosmetic test changes mentioned below.



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Comment at: clang/test/SemaCUDA/function-overload.cu:479
+namespace ImplicitHostDeviceVsWrongSided {
+inline CorrectOverloadRetTy callee(double x);
+#pragma clang force_cuda_host_device begin
----------------
Is `inline` necessary in these new tests? Please remove it where it's not needed.


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Comment at: clang/test/SemaCUDA/function-overload.cu:493
+namespace ImplicitHostDeviceVsSameSide {
+inline InCorrectOverloadRetTy callee(int x);
+#pragma clang force_cuda_host_device begin
----------------
Nit: `Incorrect` should not have `C` capitalized as it's one word.


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Comment at: clang/test/SemaCUDA/function-overload.cu:502-529
+// In the implicit host device function 'caller', the second 'callee' should be
+// since it has better match, even though it is an implicit host device function
+// whereas the first 'callee' is a host function. A diagnostic will be emitted
+// if the first 'callee' is chosen since deduced return type cannot be used
+// before it is defined.
+namespace ImplicitHostDeviceByConstExpr {
+template <class a> a b;
----------------
Please move this test below the other two as keeping them together is useful to illustrate the differences in behavior of overloading in explicit HD vs implicit HD functions.


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https://reviews.llvm.org/D79526