Sacha Verweij

tune! (and thus @benchmark) doesn't setup between evals?

10

The following works fine ``` julia A = Array(SymTridiagonal(fill(2, 5), ones(5))) b = @benchmarkable Base.LinAlg.chol!(x) setup=(x = Hermitian(copy($A), :U)) warmup(b) run(b) ``` but injecting `tune!` between `warmup` and `run` as...

Pass CodeGenOpt::Less to LLVM at O1 (rather than CodeGenOpt::None).

6

For context, please see https://github.com/JuliaLang/julia/pull/35086#issuecomment-700944522. Regarding alignment with clang, please see https://reviews.llvm.org/D28409 (/https://github.com/JuliaLang/julia/pull/35086#issuecomment-598282810). ``` Prior to Julia 1.5, Julia passed CodeGenOpt::Aggressive to LLVM at -O1. As of Julia 1.5, Julia...