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94e64f0c5c
Imported from GitHub PR https://github.com/abseil/abseil-cpp/pull/1777 This patch replaces all instances of std::ldexp(msb, 64) with msb * (2**64) as it turns out that this optimization is not done by MSVC. Worse, it emited a function call with error checking, even if the int128 cannot hit the inf limitation. Sadly even the constant `std::ldexp(1.0, 64)` is not inlined: https://gcc.godbolt.org/z/oGhGz77sx Mergea21b1c9524into878313658eMerging this change closes #1777 COPYBARA_INTEGRATE_REVIEW=https://github.com/abseil/abseil-cpp/pull/1777 from degasus:int128_ta21b1c9524PiperOrigin-RevId: 688968524 Change-Id: Id88cf38e241553f88bf4d97e7b001247dcd5599b