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AnyPS5/docs/dev
AlxcBTWandClaude Opus 5.5 66236674f0 fix(recompiler): keep lane 31 a shuffle without subgroup arithmetic
The half-wave scan rules for 32-lane hosts made lane 31 of a matched
scan a subgroup reduction and threw on a device without subgroup
arithmetic, where the read used to build as a shuffle of the scan. Such
a device now keeps the shuffle for lane 31; lane 63 still reads the
identity, which needs no arithmetic.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 13:24:14 +02:00
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