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A comment on Why Is SQLite Coded in C? (2017). Parent comment

Re:Why Is SQLite Coded in C? (2017) by igouy on Tuesday March 20, 2018 @12:57PM (#16630372)
Someone has repeatedly commented on /r/rust/ that differences are due not so much to SIMD but iirc to not triggering the same LLVM loop unrolling.
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Re:Why Is SQLite Coded in C? (2017) by steveklabnik on Wednesday March 21, 2018 @03:52PM (#16641700)
I think you're confusing loop unrolling and autovectorization. That said, it's kinda moot, once SIMD is stable, we'll find out :)
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Re:Why Is SQLite Coded in C? (2017) by igouy on Sunday March 25, 2018 @11:49AM (#16672692)
>> I think you're confusing loop unrolling and autovectorization. <<

Here's exactly what I was told -- "This was achieved by manually unrolling a 10-step loop, which compiler apparently could not optimize."

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