[all-commits] [llvm/llvm-project] b636e7: [NFC][PhaseOrdering] Add a test demonstrating pitf...

[Roman Lebedev via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: b636e7d1fc61635d214edc81fd98b3717add8aef
      https://github.com/llvm/llvm-project/commit/b636e7d1fc61635d214edc81fd98b3717add8aef
  Author: Roman Lebedev <lebedev.ri at gmail.com>
  Date:   2020-07-16 (Thu, 16 Jul 2020)

  Changed paths:
    A llvm/test/Transforms/PhaseOrdering/loop-rotation-vs-common-code-hoisting.ll

  Log Message:
  -----------
  [NFC][PhaseOrdering] Add a test demonstrating pitfails of common code hoisting on loop rotation

Depending on the -rotation-max-header-size=?,
hoisting common code early makes loop rotation impossible.