[NFCI][msan] Precommit tests for AVX-VNNI #153135
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The tests largely cover AVX-VNNI (Vector Neural Network Instructions): - vpdpbusd, vpdpbusds - vpdpwssd, vpdpwssds AVX-VNNI-INT8: - vpdpbssd, vpdpbssds - vpdpbsud, vpdpbsuds - vpdpbuud, vpdpbuuds AVX-VNNI-INT16: - vpdpwsud, vpdpwsuds - vpdpwusd, vpdpwusds - vpdpwuud, vpdpwuuds These instructions are currently heuristically handled (by OR'ing together the vectors). This is incorrect because: 1) multiplication by a zero should result in an initialized value 2) the addition is horizontal (within vectors, not "vertically" between vectors). Future work can improve the instrumentation by applying the updated handleVectorPmaddIntrinsic() from llvm#152941
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This extends the pmadd handler (recently improved in llvm#153353) to three-operand intrinsics (multiply-add-accumulate), and applies it to the AVX Vector Neural Network Instructions. Updates the tests from llvm#153135
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… Neural Network Instructions (VNNI) (#153927) This extends the pmadd handler (recently improved in llvm/llvm-project#153353) to three-operand intrinsics (multiply-add-accumulate), and applies it to the AVX Vector Neural Network Instructions. Updates the tests from llvm/llvm-project#153135
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The tests largely cover AVX-VNNI (Vector Neural Network Instructions):
AVX-VNNI-INT8:
AVX-VNNI-INT16:
These instructions are currently heuristically handled (by OR'ing together the vectors). This is incorrect because:
Future work can improve the instrumentation by applying the updated handleVectorPmaddIntrinsic() from #152941