pytorch

55cdd31b - Assert that kernels are called with the right signature (#38361)

Assert that kernels are called with the right signature (#38361) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/38361 Rather than segfaulting, we should show a good error message when in op.call<Return, Args...>(...) the Return type or Args types mismatch the kernel. This adds an assertion comparing two std::type_index to the call path, but that should be fast. Hashing the function signature is also in the call path and not strictly constexpr, but I checked on godbolt that GCC >=5 and Clang >=3.8 optimize it away and make it constexpr, i.e. it's not part of the assembly. supersedes D17485438 ghstack-source-id: 106178820 Test Plan: waitforsandcastle Differential Revision: D21534052 fbshipit-source-id: 6be436a3f20586277a051d764af29e21d5567da0