[all-commits] [llvm/llvm-project] af15c4: [SLP]Do not crash if number of vector registers do...

[Alexey Bataev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: af15c46777208a4cb4b276c4974a5b556608a415
      https://github.com/llvm/llvm-project/commit/af15c46777208a4cb4b276c4974a5b556608a415
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2023-10-30 (Mon, 30 Oct 2023)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    A llvm/test/Transforms/SLPVectorizer/X86/shuffle-multivector.ll

  Log Message:
  -----------
  [SLP]Do not crash if number of vector registers does not feet the vector
type.

Need to check, if the number of vector registers, returned by TTI, is
not greater than total number of mask element and not zero, before
trying to perform any operations. TTI still may return non-valid number
of registers.