Celegans12 a2e0be6e76 docs: record how EXEC written as a value is read on narrow subgroups ...

On a host subgroup narrower than 32 lanes, threadBit reads an EXEC
written with s_mov_b32 or s_mov_b64 at bit LaneId & 31 of EXEC_LO, and
LaneId is the subgroup invocation id. Every lane at or above the host
subgroup size therefore reads the bit of a lower lane, in wave32 and
wave64 alike. An EXEC produced by a compare stays consistent because
its ballot is subgroup-local as well. Found while investigating the
llvmpipe failure of #751.

2026-10-06 07:37:02 +02:00

..

BUILD.md

test(agc): validate pixel LDS and expose pipeline statistics

2026-10-04 23:04:39 -03:00

CONVENTIONS.md

refactor(docs): separated user and dev in docs + compatibility file

2026-09-28 22:58:17 +03:00

TechnicalDebt.md

docs: record how EXEC written as a value is read on narrow subgroups

2026-10-06 07:37:02 +02:00