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

     1  long double C = 5;
     2  long double U = 1;
     3  long double Y2 = 11;
     4  long double Y1 = 17;
     5  long double X, Y, Z, T, R, S;
     6  main ()
     7  {
     8    X = (C + U) * Y2;
     9    Y = C - U - U;
    10    Z = C + U + U;
    11    T = (C - U) * Y1;
    12    X = X - (Z + U);
    13    R = Y * Y1;
    14    S = Z * Y2;
    15    T = T - Y;
    16    Y = (U - Y) + R;
    17    Z = S - (Z + U + U);
    18    R = (Y2 + U) * Y1;
    19    Y1 = Y2 * Y1;
    20    R = R - Y2;
    21    Y1 = Y1 - 0.5L;
    22    if (Z != 68. || Y != 49. || X != 58. || Y1 != 186.5 || R != 193. || S != 77.
    23        || T != 65. || Y2 != 11.)
    24      abort ();
    25    exit (0);
    26  }