gcc/testsuite/g++.dg/pr67351.C

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3
   4 typedef unsigned char uchar;
   5 typedef unsigned short ushort;
   6 typedef unsigned int uint;
   7 typedef unsigned long long uint64;
   8
   9 class MyRgba
  10 {
  11   uint rgba;
  12
  13 public:
  14     explicit MyRgba (uint c):rgba (c)
  15   {
  16   };
  17
  18   static MyRgba fromRgba (uchar r, uchar g, uchar b, uchar a)
  19   {
  20     return MyRgba (uint (r) << 24
  21                    | uint (g) << 16 | uint (b) << 8 | uint (a));
  22   }
  23
  24   uchar r ()
  25   {
  26     return rgba >> 24;
  27   }
  28   uchar g ()
  29   {
  30     return rgba >> 16;
  31   }
  32   uchar b ()
  33   {
  34     return rgba >> 8;
  35   }
  36   uchar a ()
  37   {
  38     return rgba;
  39   }
  40
  41   void setG (uchar _g)
  42   {
  43     *this = fromRgba (r (), _g, b (), a ());
  44   }
  45 };
  46
  47 extern MyRgba giveMe ();
  48
  49 MyRgba
  50 test ()
  51 {
  52   MyRgba a = giveMe ();
  53   a.setG (0xf0);
  54   return a;
  55 }
  56
  57 class MyRgba64
  58 {
  59   uint64 rgba;
  60
  61 public:
  62     explicit MyRgba64 (uint64 c):rgba (c)
  63   {
  64   };
  65
  66   static MyRgba64 fromRgba64 (ushort r, ushort g, ushort b, ushort a)
  67   {
  68     return MyRgba64 (uint64 (r) << 48
  69                      | uint64 (g) << 32 | uint64 (b) << 16 | uint64 (a));
  70   }
  71
  72   ushort r ()
  73   {
  74     return rgba >> 48;
  75   }
  76   ushort g ()
  77   {
  78     return rgba >> 32;
  79   }
  80   ushort b ()
  81   {
  82     return rgba >> 16;
  83   }
  84   ushort a ()
  85   {
  86     return rgba;
  87   }
  88
  89   void setG (ushort _g)
  90   {
  91     *this = fromRgba64 (r (), _g, b (), a ());
  92   }
  93 };
  94
  95 extern MyRgba64 giveMe64 ();
  96
  97 MyRgba64
  98 test64 ()
  99 {
 100   MyRgba64 a = giveMe64 ();
 101   a.setG (0xf0f0);
 102   return a;
 103 }
 104
 105 /* { dg-final { scan-tree-dump-not "<<" "optimized" } } */
 106 /* { dg-final { scan-tree-dump-not ">>" "optimized" } } */