[SYCL][NFCI] Drop __spirv_ops.hpp from core.hpp
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Our device compiler have been capable of automagically declaring necessary SPIR-V built-ins on the fly for a while now, meaning that we don't need them to be forward-declared in headers. This PR drops includes of `__spirv_ops.hpp` so that they don't appear anymore in `core.hpp` (and some other headers). The header is not removed entirely, however, because not every built-in is known to the compiler, i.e. some of them still have to be forward-declared in the header. Most likely there are other places which can be made free of uses of the header and the header itself can probably be cleaned up agressively, but I will leave it for separate future PRs.
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AlexeySachkov
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| @@ -73,10 +73,10 @@ template <typename T, typename Properties> | |||
| void prefetch_impl(T *ptr, size_t bytes, Properties properties) { | |||
| #ifdef __SYCL_DEVICE_ONLY__ | |||
| auto *ptrGlobalAS = | |||
| reinterpret_cast<__attribute__((opencl_global)) const char *>( | |||
| reinterpret_cast<__attribute__((opencl_global)) const unsigned char *>( | |||
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Note for reviewers: compiler only declares signed and unsigned char overloads, hence the change.
We could probably tweak the compiler to have plain char overloads as well, but I'm not sure that it won't cause any unwanted side effects, so I went with this change for now.
unsigned char should be a safe choice when it comes to object representation
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Our device compiler have been capable of automagically declaring necessary SPIR-V built-ins on the fly for a while now, meaning that we don't need them to be forward-declared in headers.
This PR drops includes of
__spirv_ops.hppso that they don't appear anymore incore.hpp(and some other headers).The header is not removed entirely, however, because not every built-in is known to the compiler, i.e. some of them still have to be forward-declared in the header.
Most likely there are other places which can be made free of uses of the header and the header itself can probably be cleaned up agressively, but I will leave it for separate future PRs.