[all-commits] [llvm/llvm-project] bea69b: [VPlan] Initial modeling of middle block in VPlan.

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: bea69b232ff91907a096959a0ead96c9d75e30d2
      https://github.com/llvm/llvm-project/commit/bea69b232ff91907a096959a0ead96c9d75e30d2
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2022-04-20 (Wed, 20 Apr 2022)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/lib/Transforms/Vectorize/VPlan.cpp
    M llvm/test/Transforms/LoopVectorize/first-order-recurrence-sink-replicate-region.ll
    M llvm/test/Transforms/LoopVectorize/vplan-printing.ll
    M llvm/test/Transforms/LoopVectorize/vplan-sink-scalars-and-merge-vf1.ll

  Log Message:
  -----------
  [VPlan] Initial modeling of middle block in VPlan.

This patch extends the scope of VPlan to also include the exit (aka
middle) block.

For now, the exit block remains empty, but handling of exit values will
subsequently be moved to VPlan, by adding recipes to model exit values
in the exit block.

As a first step, this will allow fixing #51366.

Reviewed By: Ayal

Differential Revision: https://reviews.llvm.org/D123457