[all-commits] [llvm/llvm-project] f02dc4: [VPlan] Don't try to hoist multi-defs for first-or...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f02dc4d19869f91ac967f231abb35e221efba357
      https://github.com/llvm/llvm-project/commit/f02dc4d19869f91ac967f231abb35e221efba357
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2025-12-04 (Thu, 04 Dec 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
    M llvm/test/Transforms/LoopVectorize/first-order-recurrence-complex.ll

  Log Message:
  -----------
  [VPlan] Don't try to hoist multi-defs for first-order recurrences.

Currently the hoisting implementation expects single-defs. Bail out on
multi-defs (VPInterleaveRecipe), to fix an assertion.

Fixes https://github.com/llvm/llvm-project/issues/170666



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