In March 2015, AMD explicitly revealed in the description of the patch for the GNU Binutils package that Zen, its third-generation x86-64 architecture in its first iteration (znver1 - Zen, version 1), will not support TBM, FMA4, XOP and LWP instructions developed specifically for the "Bulldozer" family of micro-architectures.

Integer vector multiply-accumulate instructions

These are integer version of the

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