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Keno
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With #44494, this cuts about 22M allocations (out of 59M) from the compiler benchmark in #44492. Without #44494, it still reduces the number of allocations, but not as much. This was originally optimized in 100666b, but the behavior of our compiler has changed to allow inling the Tuple{UseRef, Int} into the outer struct, forcing a reallocation on every iteration.
ianatol
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With JuliaLang#44494, this cuts about 22M allocations (out of 59M) from the compiler benchmark in JuliaLang#44492. Without JuliaLang#44494, it still reduces the number of allocations, but not as much. This was originally optimized in 100666b, but the behavior of our compiler has changed to allow inling the Tuple{UseRef, Int} into the outer struct, forcing a reallocation on every iteration.
Keno
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Mar 15, 2022
With #44494, this cuts about 22M allocations (out of 59M) from the compiler benchmark in #44492. Without #44494, it still reduces the number of allocations, but not as much. This was originally optimized in 100666b, but the behavior of our compiler has changed to allow inling the Tuple{UseRef, Int} into the outer struct, forcing a reallocation on every iteration.
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Merged as #44557 |
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@ianatol I think this one probably needs to go through PkgEval. It's pretty easy to end up in situations here where the use counts are off, which causes it to delete used statements. Could you take this one over, do PkgEval, add some tests, etc?