[all-commits] [llvm/llvm-project] 4fb3fd: [InstCombine] Fix const folding of switches with d...

[Danila Malyutin via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4fb3fd7d82067a6d5ade618db54b6e9b1158204b
      https://github.com/llvm/llvm-project/commit/4fb3fd7d82067a6d5ade618db54b6e9b1158204b
  Author: Danila Malyutin <dmalyutin at azul.com>
  Date:   2022-05-31 (Tue, 31 May 2022)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstCombinePHI.cpp
    M llvm/test/Transforms/InstCombine/simple_phi_condition.ll

  Log Message:
  -----------
  [InstCombine] Fix const folding of switches with default case

In case phi was in the default block it could lead to multi-edge.
Fixes #55721.

Differential Revision: https://reviews.llvm.org/D126650