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8bbb1a1807
Add a helper for multi-limb 64-bit addition. The helper emits native carry-chain TCG ops when they are available and falls back to explicit carry propagation otherwise. This lets target translators build wider integer accumulators inline without open-coding the same add-with-carry sequence at each use site. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: James Hilliard <james.hilliard1@gmail.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20260520172313.23777-17-philmd@linaro.org>