[all-commits] [llvm/llvm-project] bb3763: Revert "[SimplifyCFG] Allow dropping block that on...

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: bb3763e497d94b061aa9d625fc542d16da9cae6d
      https://github.com/llvm/llvm-project/commit/bb3763e497d94b061aa9d625fc542d16da9cae6d
  Author: Nikita Popov <nikita.ppv at gmail.com>
  Date:   2023-06-30 (Fri, 30 Jun 2023)

  Changed paths:
    M llvm/include/llvm/Transforms/Utils/Local.h
    M llvm/lib/Transforms/Utils/Local.cpp
    M llvm/lib/Transforms/Utils/SimplifyCFG.cpp
    M llvm/test/CodeGen/Thumb2/pr52817.ll
    M llvm/test/Transforms/LoopVectorize/ARM/pointer_iv.ll
    M llvm/test/Transforms/SimplifyCFG/X86/critedge-assume.ll
    M llvm/test/Transforms/SimplifyCFG/assume.ll
    M llvm/test/Transforms/SimplifyCFG/gepcost.ll
    M llvm/test/Transforms/SimplifyCFG/hoist-common-skip.ll

  Log Message:
  -----------
  Revert "[SimplifyCFG] Allow dropping block that only contains ephemeral values"

This reverts commit 20f0c68fd83a0147a8ec1722bd2e848180610288.

https://reviews.llvm.org/D153966#4464594 reports an optimization
regression in Rust.

Additionally this change has caused an unexpected 0.3% compile-time
regression.