Provide SSR runtime APIs as global symbols #33
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This PR (stacked on top of #25) tries to address the issue of SSR symbols defined as
inline
in upstream's runtime, making them essentially not callable outside of C. This PR providesextern
declarations and definitions, forcing the compiler to actually emit symbols in the resulting object.Note: the reason why SSR functions were either
inline
-inlined or LTO-inlined is because performing actual function calls inside kernels skews cycle measurements by a significant amount (especially when dealing with hot loops with small trip count).