modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/compile/20030110-1.c (about)

     1  extern char bpp;
     2  
     3  void foo()
     4  {
     5    if (bpp == 32)
     6      {
     7        if (2 < 8)
     8  	{
     9  	  do
    10  	    {
    11  	      while (inb(0x9ae8) & (0x0100 >> (2 +1)));
    12  	    }
    13  	  while(0);
    14  	}
    15        else
    16  	{
    17  	  do
    18  	    {
    19  	      while (inb(0x9ae8) & (0x0100 >> (2)));
    20  	    }
    21  	  while(0);
    22  	}
    23      }
    24    else
    25      do
    26        { 
    27  	while (inb(0x9ae8) & (0x0100 >> (1)));
    28        }
    29      while(0);
    30    if (8 < 8)
    31      {
    32        do
    33  	{
    34  	  while (inb(0x9ae8) & (0x0100 >> (8 +1)));
    35  	}
    36        while(0);
    37      }
    38  }
    39