[all-commits] [llvm/llvm-project] e31252: [SLP]Fix PR105120: fix the order of phi nodes vect...

[Alexey Bataev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e31252bf54dedadfe78b36d07ea6084156faa38a
      https://github.com/llvm/llvm-project/commit/e31252bf54dedadfe78b36d07ea6084156faa38a
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2024-08-21 (Wed, 21 Aug 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    A llvm/test/Transforms/SLPVectorizer/X86/phi-nodes-as-operand-reorder.ll

  Log Message:
  -----------
  [SLP]Fix PR105120: fix the order of phi nodes vectorization.

The operands of the phi nodes should be vectorized in the same order, in
which they were created, otherwise the compiler may crash when trying
to correctly build dependency for nodes with non-schedulable
instructions for gather/buildvector nodes.

Fixes https://github.com/llvm/llvm-project/issues/105120



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