[PATCH] D60897: [SLP] Look-ahead operand reordering heuristic.

[Petr Hosek via Phabricator via llvm-commits]

phosek added a comment.

This change has caused a massive increase in build times when using LTO. On my workstations when building Clang toolchain itself with LTO, the build time has increased from 50 minutes to 5+ hours. On our continuous builders, we seen timeouts everywhere because they aren't able to finish within the allocated time (5 hours). Would it be possible to revert this change?


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D60897/new/

https://reviews.llvm.org/D60897