[SYCL] Hide inline definitions of stdio functions #18174
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MSVC's inline definitions of stdio functions such as printf() are only meant for host code; device code cannot call them. Device code can, however, call ext::oneapi::experimental::printf() which depending on the target is implemented as a call to the global printf(). The availability of a definition of the global host printf() makes it more difficult to handle in device code, so hide it.
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This fixes at least one SYCL E2E test ( |
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I'm not aware of implications of always enabling this macro, @AaronBallman can you maybe weigh in?
For the avoidance of confusion, this is inside a |
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@intel/llvm-gatekeepers This can be merged, thanks. |
MSVC's inline definitions of stdio functions such as printf() are only meant for host code; device code cannot call them. Device code can, however, call ext::oneapi::experimental::printf() which depending on the target is implemented as a call to the global printf(). The availability of a definition of the global host printf() makes it more difficult to handle in device code, so hide it.