[all-commits] [llvm/llvm-project] 1318dd: [VectorUtils] rename scaleShuffleMask to narrowShu...

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  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 1318ddbc14c28eee63df9cfe3ed92dca82557935
      https://github.com/llvm/llvm-project/commit/1318ddbc14c28eee63df9cfe3ed92dca82557935
  Author: Sanjay Patel <spatel at rotateright.com>
  Date:   2020-04-11 (Sat, 11 Apr 2020)

  Changed paths:
    M llvm/include/llvm/Analysis/VectorUtils.h
    M llvm/lib/Analysis/VectorUtils.cpp
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/lib/Target/X86/X86InterleavedAccess.cpp
    M llvm/lib/Transforms/InstCombine/InstCombineVectorOps.cpp
    M llvm/lib/Transforms/Vectorize/VectorCombine.cpp
    M llvm/unittests/Analysis/VectorUtilsTest.cpp

  Log Message:
  -----------
  [VectorUtils] rename scaleShuffleMask to narrowShuffleMaskElts; NFC

As proposed in D77881, we'll have the related widening operation,
so this name becomes too vague.

While here, change the function signature to take an 'int' rather
than 'size_t' for the scaling factor, add an assert for overflow of
32-bits, and improve the documentation comments.