[all-commits] [llvm/llvm-project] 75c04b: [SimplifyCFG] Preserve !annotation in FoldBranchTo...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 75c04bfc61d6cc5623eadd8a04f86c315dacd823
      https://github.com/llvm/llvm-project/commit/75c04bfc61d6cc5623eadd8a04f86c315dacd823
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2020-12-17 (Thu, 17 Dec 2020)

  Changed paths:
    M llvm/lib/Transforms/Utils/SimplifyCFG.cpp
    M llvm/test/Transforms/SimplifyCFG/annotations.ll

  Log Message:
  -----------
  [SimplifyCFG] Preserve !annotation in FoldBranchToCommonDest.

When folding a branch to a common destination, preserve !annotation on
the created instruction, if the terminator of the BB that is going to be
removed has !annotation. This should ensure that !annotation is attached
to the instructions that 'replace' the original terminator.

Reviewed By: jdoerfert, lebedev.ri

Differential Revision: https://reviews.llvm.org/D93410