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I'm a heavy user of NVIDIA LOP3 instruction (uint32). I wonder when AMD will finally support it well.

They already do, it's called v_bitop3_b32. Added in CDNA4, present in CDNA5 and will be making its way in RDNA5, if the LLVM code is to be trusted.

I'm very interested in your use case.

I looked into bit-slicing techniques, but they increase throughput at the cost of massive latency. This is not acceptable for realtime audio.

Fusing multiple boolean logic functions into one.