[PATCH] D126885: [SLP]Cost for a constant buildvector.

Mon Aug 29 05:12:58 PDT 2022

ABataev added a comment.

In D126885#3755038 <https://reviews.llvm.org/D126885#3755038>, @nikic wrote:

> FYI this change caused a noticeable compile-time regression: http://llvm-compile-time-tracker.com/compare.php?from=31fbcccb3136b9da99e7bc95007e553403fcd641&to=0e7ed32c71362f3547329c6ee8573a8bc191f58a&stat=instructions Highest impact seems to be 7.5% on constants.c from mafft. I don't see anything obvious that can be optimized here though.

Hope D132750 <https://reviews.llvm.org/D132750> will fix it in some cases for FP cases.

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D126885/new/

https://reviews.llvm.org/D126885