[all-commits] [llvm/llvm-project] d76c1d: [RS4GC] Lazily set changed flag when folding singl...

[Yevgeny Rouban via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: d76c1d2247af599a67fcfee6b1ebfcffed99ee7c
      https://github.com/llvm/llvm-project/commit/d76c1d2247af599a67fcfee6b1ebfcffed99ee7c
  Author: Yevgeny Rouban <yrouban at azul.com>
  Date:   2020-12-28 (Mon, 28 Dec 2020)

  Changed paths:
    M llvm/include/llvm/Transforms/Utils/BasicBlockUtils.h
    M llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp
    M llvm/lib/Transforms/Utils/BasicBlockUtils.cpp

  Log Message:
  -----------
  [RS4GC] Lazily set changed flag when folding single entry phis

The function FoldSingleEntryPHINodes() is changed to return if
it has changed IR or not. This return value is used by RS4GC to
set the MadeChange flag respectively.

Reviewed By: reames
Differential Revision: https://reviews.llvm.org/D93810