[all-commits] [llvm/llvm-project] d06418: [SimplifyCFG] Tail-merging all blocks with `resume...

[Roman Lebedev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d0641826121d61cbf688dc8cd4bd368939292689
      https://github.com/llvm/llvm-project/commit/d0641826121d61cbf688dc8cd4bd368939292689
  Author: Roman Lebedev <lebedev.ri at gmail.com>
  Date:   2021-06-24 (Thu, 24 Jun 2021)

  Changed paths:
    M llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp
    M llvm/test/Transforms/SimplifyCFG/tail-merge-resume.ll

  Log Message:
  -----------
  [SimplifyCFG] Tail-merging all blocks with `resume` terminator

Similar to what we already do for `ret` terminators.
As noted by @rnk, clang seems to already generate a single `ret`/`resume`,
so this isn't likely to cause widespread changes.

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D104849