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 int
  18 brl_readCommand (BrailleDisplay * brl)
  19 {
  20   unsigned long int keys;
  21   int command;
  22   int keyPressed;
  23   unsigned char routingKeys[200];
  24   int routingKeyCount;
  25   signed char rightVerticalSensor;
  26   if (pendingCommand != (-1))
  27     {
  28       return command;
  29     }
  30   if (!protocol->updateKeys (brl, &keyPressed))
  31     {
  32       if (rightVerticalSensor >= 0)
  33         keys |= 1;
  34       if ((routingKeyCount == 0) && keys)
  35         {
  36           if (currentModifiers)
  37             {
  38             doChord:switch (keys);
  39             }
  40           else
  41             {
  42             doCharacter:
  43               command = 0X2200;
  44               if (keys & 0X01UL)
  45                 command |= 0001;
  46               if (keys & 0X02UL)
  47                 command |= 0002;
  48               if (keys & 0X04UL)
  49                 command |= 0004;
  50               if (keys & 0X08UL)
  51                 command |= 0010;
  52               if (keys & 0X10UL)
  53                 command |= 0020;
  54               if (keys & 0X20UL)
  55                 command |= 0040;
  56               if (currentModifiers & (0X0010 | 0X0200))
  57                 command |= 0100;
  58               if (currentModifiers & 0X0040)
  59                 command |= 0200;
  60               if (currentModifiers & 0X0100)
  61                 command |= 0X020000;
  62               if (currentModifiers & 0X0400)
  63                 command |= 0X080000;
  64               if (currentModifiers & 0X0800)
  65                 command |= 0X040000;
  66             }
  67           unsigned char key1 = routingKeys[0];
  68           if (key1 == 0)
  69             {
  70             }
  71           if (key1 == 1)
  72             if (keys)
  73               {
  74                 currentModifiers |= 0X0010;
  75                 goto doCharacter;
  76               }
  77         }
  78     }
  79   return command;
  80 }