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J. Nick Koston
507c29add7
Apply the same inline fast-path / noinline slow-path split to ProtoWriteBuffer::encode_varint_raw that was done for ProtoSize::varint. For values < 128 (field tags, small field values, short lengths), the single-byte write is now inlined at each call site instead of going through a full function call. The multi-byte loop is outlined into encode_varint_raw_slow_(). Also add [[likely]] to both varint fast paths (ProtoSize::varint and encode_varint_raw) to hint branch prediction.
