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A comment on Comparing Parallel Rust and C++. Parent comment

Re:Comparing Parallel Rust and C++ by keldaris on Thursday November 07, 2019 @05:22AM (#21471956)
That's absolutely right (and thank you for the reference), but this benchmark starts off with fairly naive code where -ffast-math may still help considerably.
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Re:Comparing Parallel Rust and C++ by mratsim on Thursday November 07, 2019 @05:29AM (#21471989)
If in-between the start and the end, I went up to 8 accumulators and in files in the same folder I have the same with SSE and AVX instructions.

I actually wanted to know exactly what ffast-math did, down to the codegen (so you have assembly at the bottom).

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