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Toshit ChawdaandClaude Opus 5.5 3e7a6b01c9 gex-isa, gex-lift: saddlv and uaddlv
The across-lanes long sums, which clang emits for a popcount (cnt, then
uaddlv), were undecoded. They widen with extend_low (and extend_high in the
128-bit form) and then reduce as addv does, at twice the lane width.

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
2026-10-29 18:48:54 -07:00
..
2026-10-03 12:26:33 -04:00