[all-commits] [llvm/llvm-project] 5797ed: [GISel][SDAG] Avoid push_back in loops for some sh...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5797ed660ab0c1847bd6229af262f841b2f753ae
      https://github.com/llvm/llvm-project/commit/5797ed660ab0c1847bd6229af262f841b2f753ae
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2024-12-10 (Tue, 10 Dec 2024)

  Changed paths:
    M llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
    M llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp

  Log Message:
  -----------
  [GISel][SDAG] Avoid push_back in loops for some shuffle mask handling. (#119434)

Each call to push_back contains a check to see if the vector needs to
grow. Using resize or giving the size to the constructor can reduce
the number of checks for growing.



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