clang-tools-extra/docs/clang-tidy/checks/llvm/prefer-register-over-unsigned.rst

   1 .. title:: clang-tidy - llvm-prefer-register-over-unsigned
   2
   3 llvm-prefer-register-over-unsigned
   4 ==================================
   5
   6 Finds historical use of ``unsigned`` to hold vregs and physregs and rewrites
   7 them to use ``Register``.
   8
   9 Currently this works by finding all variables of unsigned integer type whose
  10 initializer begins with an implicit cast from ``Register`` to ``unsigned``.
  11
  12 .. code-block:: c++
  13
  14   void example(MachineOperand &MO) {
  15     unsigned Reg = MO.getReg();
  16     ...
  17   }
  18
  19 becomes:
  20
  21 .. code-block:: c++
  22
  23   void example(MachineOperand &MO) {
  24     Register Reg = MO.getReg();
  25     ...
  26   }
  27