[PATCH] D47757: [Sema] Produce diagnostics when unavailable aligned allocation/deallocation functions are called

[Artem Belevich via Phabricator via cfe-commits]

tra added inline comments.


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Comment at: test/SemaCUDA/call-host-fn-from-device.cu:88
 __host__ __device__ void class_specific_delete(T *t, U *u) {
-  delete t; // ok, call sized device delete even though host has preferable non-sized version
+  delete t; // expected-error {{reference to __host__ function 'operator delete' in __host__ __device__ function}}
   delete u; // ok, call non-sized HD delete rather than sized D delete
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The C++ magic is way above my paygrade, but as far as CUDA goes this is a regression, compared to what nvcc does. This code in NVCC produced a warning and clang should not error out at this point in time either as 
it's not an error to call a host function from HD unless we use HD in a host function, and we would not know how it's used until later. I think the error should be postponed until codegen. 






Repository:
  rC Clang

https://reviews.llvm.org/D47757