gcc/testsuite/gcc.dg/tree-ssa/pr33922.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -ftree-pre" } */
   3
   4 typedef enum
   5 {
   6   ST_TiemanStyle,
   7 }
   8 BrailleDisplay;
   9 static int pendingCommand;
  10 static int currentModifiers;
  11 typedef struct
  12 {
  13   int (*updateKeys) (BrailleDisplay * brl, int *keyPressed);
  14 }
  15 ProtocolOperations;
  16 static const ProtocolOperations *protocol;
  17 brl_readCommand (BrailleDisplay * brl)
  18 {
  19   unsigned long int keys;
  20   int command;
  21   int keyPressed;
  22   unsigned char routingKeys[200];
  23   int routingKeyCount;
  24   signed char rightVerticalSensor;
  25   if (pendingCommand != (-1))
  26     {
  27       return command;
  28     }
  29   if (!protocol->updateKeys (brl, &keyPressed))
  30     {
  31       if (rightVerticalSensor >= 0)
  32         keys |= 1;
  33       if ((routingKeyCount == 0) && keys)
  34         {
  35           if (currentModifiers)
  36             {
  37             doChord:switch (keys);
  38             }
  39           else
  40             {
  41             doCharacter:
  42               command = 0X2200;
  43               if (keys & 0X01UL)
  44                 command |= 0001;
  45               if (keys & 0X02UL)
  46                 command |= 0002;
  47               if (keys & 0X04UL)
  48                 command |= 0004;
  49               if (keys & 0X08UL)
  50                 command |= 0010;
  51               if (keys & 0X10UL)
  52                 command |= 0020;
  53               if (keys & 0X20UL)
  54                 command |= 0040;
  55               if (currentModifiers & (0X0010 | 0X0200))
  56                 command |= 0100;
  57               if (currentModifiers & 0X0040)
  58                 command |= 0200;
  59               if (currentModifiers & 0X0100)
  60                 command |= 0X020000;
  61               if (currentModifiers & 0X0400)
  62                 command |= 0X080000;
  63               if (currentModifiers & 0X0800)
  64                 command |= 0X040000;
  65             }
  66           unsigned char key1 = routingKeys[0];
  67           if (key1 == 0)
  68             {
  69             }
  70           if (key1 == 1)
  71             if (keys)
  72               {
  73                 currentModifiers |= 0X0010;
  74                 goto doCharacter;
  75               }
  76         }
  77     }
  78   return command;
  79 }