[cfe-dev] BUG: complete misunterstanding of the MS-ABI
Anton Korobeynikov via cfe-dev
cfe-dev at lists.llvm.org
Thu Sep 3 14:09:06 PDT 2020
>
> Since MSVC does NOT support an (unsigned) __int128 data type, __uint128_t
> is a user-defined type there, for which the cited specs clearly state how
> to return it.
>
WRONG USER INTERPRETATION: __uint128_t is not a user-defined type.
> | For classification purposes __int128 is treated as if it were
> implemented as:
> | typedef struct {
> | long low, high;
> | } __int128;
>
WRONG USER INTERPRETATION: Classification rules of System V ABI is
irrelevant here.
--
With best regards, Anton Korobeynikov
Department of Statistical Modelling, Saint Petersburg State University
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