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CachedInterpreterEmitter: Fix std::memcpy
UB
I wasn't aware that even with a size of zero, it's still not safe to pass a nullptr to `std::memcpy`. When `CachedInterpreterEmitter::PoisonCallback` is written, UB is happening.
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@ -19,6 +19,8 @@ void CachedInterpreterEmitter::Write(AnyCallback callback, const void* operands,
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}
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std::memcpy(m_code, &callback, sizeof(callback));
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m_code += sizeof(callback);
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if (size == 0)
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return;
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std::memcpy(m_code, operands, size);
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m_code += size;
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}
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