gnu/dist/gcc4/gcc/testsuite/g++.dg/opt/pr24665.C

   1 // { dg-do compile }
   2 // { dg-options "-O2" }
   3
   4 typedef unsigned long T;
   5 typedef volatile T* const hwreg_t;
   6 struct RegisterLayout
   7 {
   8     T intmask;
   9 };
  10 struct Controller_t
  11 {
  12     Controller_t();
  13     inline void
  14     disableInterrupt()
  15     {
  16         *mpMaskRegister = 0;
  17     };
  18     static hwreg_t mpMaskRegister;
  19 };
  20
  21 extern char SimulatedRegisters[];
  22
  23 hwreg_t Controller_t::mpMaskRegister
  24   = &(reinterpret_cast<volatile RegisterLayout*>(SimulatedRegisters))->intmask;
  25
  26 Controller_t::Controller_t()
  27 {
  28     disableInterrupt();
  29 }