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J. Nick Koston
3a76f9d5d2
Previously encode_string called encode_varint_raw(len) then encode_raw(data, len) as separate methods, each with their own __restrict__ pos scope. This caused a redundant store-load pair of pos_ between the two operations. Inline the length varint write and memcpy under a single local pos variable so the compiler can keep pos_ in a register across both operations. Eliminates one load-store pair per string encode.
