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CHIP-SPV
rocPRIM
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warp_shuffle_op: avoid sub-int narrow↔wide roundtrip (IGC fp16 miscompile)
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pvelesko
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fix-warp-shuffle-fp16
CHIP-SPV/rocPRIM:fix-warp-shuffle-fp16
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Apr 17, 2026
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warp_shuffle_op: avoid sub-int narrow↔wide roundtrip (IGC fp16 miscompile)
#3
pvelesko
merged 5 commits into
main
CHIP-SPV/rocPRIM:main
from
fix-warp-shuffle-fp16
CHIP-SPV/rocPRIM:fix-warp-shuffle-fp16
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Commits on Apr 16, 2026
test: reproduce IGC fp16 narrow-wide shuffle miscompile in warp_shuffle
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fix: specialize warp_shuffle_op for sizeof(T)<4 to avoid IGC fp16 miscompile
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ci: re-enable warp_reduce, warp_scan, block_shuffle (fixed by this PR)
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ci: re-exclude block_shuffle (bf16 still fails on PoCL CPU)
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Commits on Apr 17, 2026
Update exclude.txt
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