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Marius Wachtler authored
Previously we generated patchpoints for every call because the callee could do a frame introspection and we could not retrieve the frame info without the additional patchpoint informations. This change moves all required information inside the FrameInfo. Because the FrameInfo does not have a fixed offset (different num of stack args and OSR functions reuse the frame info from the interpreter), we generate at function entry a stack variable which points to the frame_info and than we emit a stackmap intrinsic in order to know which basepointer relative address it has. The current statement inside the FrameInfo gets only updated on direct calls - patchpoints still attach it directly instead of updating the memory. Because always updating the variable is a small slowdown. This allows us todo inlining of trivial call sites at the llvm IR level.
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