[all-commits] [llvm/llvm-project] 339dc9: [VPlan] Retain exit conditions and edges in initia...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 339dc9500b90dba47e5c7bc9804a4d5f01d592ea
      https://github.com/llvm/llvm-project/commit/339dc9500b90dba47e5c7bc9804a4d5f01d592ea
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2025-05-08 (Thu, 08 May 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VPlanConstruction.cpp
    M llvm/test/Transforms/LoopVectorize/vplan-printing-outer-loop.ll
    M llvm/unittests/Transforms/Vectorize/VPlanHCFGTest.cpp

  Log Message:
  -----------
  [VPlan] Retain exit conditions and edges in initial VPlan (NFC). (#137709)

Update initial VPlan construction to include exit conditions and edges.

The loop region is now first constructed without entry/exiting. Those
are set after inserting the region in the CFG, to preserve the original
predecessor/successor order of blocks.

For now, all early exits are disconnected before forming the regions,
but a follow-up will update uncountable exit handling to also happen
here. This is required to enable VPlan predication and remove the
dependence any IR BBs
(https://github.com/llvm/llvm-project/pull/128420).

PR: https://github.com/llvm/llvm-project/pull/137709



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications