[PATCH] D46010: [AArch64] Improve cost of vector division by constant

[Adhemerval Zanella via Phabricator via llvm-commits]

zatrazz added a comment.

In https://reviews.llvm.org/D46010#1088258, @evandro wrote:

> I tired this patch on Exynos and the performance of SPEC CPU2000 was virtually neutral, even if slightly negative overall in the integer score.  Perhaps the defaults costs are too optimistic about the relative difference between multiply and add?


Any idea if the overall result is due the patch itself of system jitter/noise? Does any component outliers significantly?


https://reviews.llvm.org/D46010