[all-commits] [llvm/llvm-project] fb8659: [GlobalISel] Fix fewerElementsVectorPhi to insert ...

[Dávid Ferenc Szabó via All-commits]

  Branch: refs/heads/release/18.x
  Home:   https://github.com/llvm/llvm-project
  Commit: fb865928c8e01c8179d253c4ceb285d3a9f3a719
      https://github.com/llvm/llvm-project/commit/fb865928c8e01c8179d253c4ceb285d3a9f3a719
  Author: Dávid Ferenc Szabó <30732159+dfszabo at users.noreply.github.com>
  Date:   2024-04-24 (Wed, 24 Apr 2024)

  Changed paths:
    M llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
    M llvm/unittests/CodeGen/GlobalISel/LegalizerHelperTest.cpp

  Log Message:
  -----------
  [GlobalISel] Fix fewerElementsVectorPhi to insert after G_PHIs (#87927)

Currently the inserted mergelike instructions will be inserted at the
location of the G_PHI. Seems like the behaviour was correct before, but
the rework done in https://reviews.llvm.org/D114198 forgot to include
the part which makes sure the instructions will be inserted after all
the G_PHIs.

(cherry picked from commit 2347020e4ce62ee7c7378824dc6ad2b94917a638)



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