Remove the last unsafe loads and replace them with checked_transmute_copy#233
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LaurenzV
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Follow-up to #233 which did this for x86 Leaves `vld4q_*` untouched because those are deinterleaving loads that genuinely need an intrinsic.
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Merged origin/main commit 13dd530. The merge applied cleanly.
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Replace AVX512 interleaved load intrinsics emitted by the branch with checked_transmute_copy, then regenerate the generated AVX512 module.
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PR linebender#237 only updates NEON load construction. The AVX512 branch-specific unsafe load sites were already adapted in the PR linebender#233 follow-up, and a search found no remaining load intrinsics needing the linebender#237 pattern.
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Only affects one function.
As per #185 we don't need explicit load intrinsics, LLVM is better at selecting the right load for the job from a generic load instruction.
The generated assembly is identical before and after. This is not a performance win but a safety win.