[all-commits] [llvm/llvm-project] 482bb3: [SandboxVec][DAG] Mark UnscheduledSuccs as invalid...

[vporpo via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 482bb3d19ac817eba49fa68431dabbc6dca35d60
      https://github.com/llvm/llvm-project/commit/482bb3d19ac817eba49fa68431dabbc6dca35d60
  Author: vporpo <vasileios.porpodas at amd.com>
  Date:   2026-03-10 (Tue, 10 Mar 2026)

  Changed paths:
    M llvm/include/llvm/Transforms/Vectorize/SandboxVectorizer/DependencyGraph.h
    M llvm/lib/Transforms/Vectorize/SandboxVectorizer/DependencyGraph.cpp
    M llvm/unittests/Transforms/Vectorize/SandboxVectorizer/DependencyGraphTest.cpp

  Log Message:
  -----------
  [SandboxVec][DAG] Mark UnscheduledSuccs as invalid when vectorized (#185519)

When a DAG node gets scheduled, it's UnscheduledSuccs variable becomes
invalid. Up until now we had no way in the code of expressing this.

This patch converts UnscheduledSuccs to an std::optional in order to
protect its use when not valid.



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