https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70066
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- This is the definition which matters: /* Minimum size in bits of the largest boundary to which any and all fundamental data types supported by the hardware might need to be aligned. No data type wants to be aligned rounder than this. Pentium+ prefers DFmode values to be aligned to 64 bit boundary and Pentium Pro XFmode values at 128 bit boundaries. When increasing the maximum, also update TARGET_ABSOLUTE_BIGGEST_ALIGNMENT. */ #define BIGGEST_ALIGNMENT \ (TARGET_IAMCU ? 32 : (TARGET_AVX512F ? 512 : (TARGET_AVX ? 256 : 128)))
