[all-commits] [llvm/llvm-project] 842f4f: [Target] Prevent copying in loop variables (NFC)

[Jie Fu (傅杰) via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 842f4f711d3a2461ad7b27e8f7e30f5270a2ba47
      https://github.com/llvm/llvm-project/commit/842f4f711d3a2461ad7b27e8f7e30f5270a2ba47
  Author: Jie Fu <jiefu at tencent.com>
  Date:   2025-06-29 (Sun, 29 Jun 2025)

  Changed paths:
    M llvm/lib/Target/Sparc/SparcISelLowering.cpp
    M llvm/lib/Target/SystemZ/SystemZISelLowering.cpp

  Log Message:
  -----------
  [Target] Prevent copying in loop variables (NFC)

/data/llvm-project/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp:2390:19: error: loop variable '[Reg, N]' creates a copy from type 'std::pair<unsigned int, llvm::SDValue> const' [-Werror,-Wrange-loop-construct]
  for (const auto [Reg, N] : RegsToPass) {
                  ^
/data/llvm-project/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp:2390:8: note: use reference type 'std::pair<unsigned int, llvm::SDValue> const &' to prevent copying
  for (const auto [Reg, N] : RegsToPass) {
       ^~~~~~~~~~~~~~~~~~~~~
                  &
/data/llvm-project/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp:2402:19: error: loop variable '[Reg, N]' creates a copy from type 'std::pair<unsigned int, llvm::SDValue> const' [-Werror,-Wrange-loop-construct]
  for (const auto [Reg, N] : RegsToPass)
                  ^
/data/llvm-project/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp:2402:8: note: use reference type 'std::pair<unsigned int, llvm::SDValue> const &' to prevent copying
  for (const auto [Reg, N] : RegsToPass)
       ^~~~~~~~~~~~~~~~~~~~~
                  &
2 errors generated.



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