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Performance regression between 1.74.1 and 1.75.0 #43

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Nugine opened this issue Mar 31, 2024 · 0 comments

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performance upstream bug

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Nugine commented Mar 31, 2024 •

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https://github.com/Nugine/simd-benches/actions/runs/8495251262

LLVM failed to emit vpavgb for _mm256_avg_epu8.
Blaming rust-lang/stdarch#1477

rust-lang/rust#124216

Nugine self-assigned this

Nugine added the performance label

Nugine changed the title ~~Performance regression on new Rust version~~ Performance regression between 1.74.1 and 1.75.0

Nugine mentioned this issue

Performance regression: rustc failed to optimize _mm256_avg_epu8 after 1.75.0 rust-lang/rust#124216

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Nugine added the upstream bug label

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