test/Sema/constant-builtins-2.c

   1 // RUN: clang-cc -fsyntax-only %s
   2
   3 // Math stuff
   4
   5 double       g0  = __builtin_huge_val();
   6 float        g1  = __builtin_huge_valf();
   7 long double  g2  = __builtin_huge_vall();
   8
   9 double       g3  = __builtin_inf();
  10 float        g4  = __builtin_inff();
  11 long double  g5  = __builtin_infl();
  12
  13 double       g6  = __builtin_nan("");
  14 float        g7  = __builtin_nanf("");
  15 long double  g8  = __builtin_nanl("");
  16
  17 // GCC constant folds these too (via native strtol):
  18 //double       g6_1  = __builtin_nan("1");
  19 //float        g7_1  = __builtin_nanf("1");
  20 //long double  g8_1  = __builtin_nanl("1");
  21
  22 // APFloat doesn't have signalling NaN functions.
  23 //double       g9  = __builtin_nans("");
  24 //float        g10 = __builtin_nansf("");
  25 //long double  g11 = __builtin_nansl("");
  26
  27 //int          g12 = __builtin_abs(-12);
  28
  29 double       g13 = __builtin_fabs(-12.);
  30 double       g13_0 = __builtin_fabs(-0.);
  31 double       g13_1 = __builtin_fabs(-__builtin_inf());
  32 float        g14 = __builtin_fabsf(-12.f);
  33 // GCC doesn't eat this one.
  34 //long double  g15 = __builtin_fabsfl(-12.0L);
  35
  36 float        g16 = __builtin_copysign(1.0, -1.0);
  37 double       g17 = __builtin_copysignf(1.0f, -1.0f);
  38 long double  g18 = __builtin_copysignl(1.0L, -1.0L);
  39
  40 //double       g19 = __builtin_powi(2.0, 4);
  41 //float        g20 = __builtin_powif(2.0f, 4);
  42 //long double  g21 = __builtin_powil(2.0L, 4);
  43
  44 // GCC misc stuff
  45
  46 extern int f();
  47
  48 int h0 = __builtin_types_compatible_p(int, float);
  49 //int h1 = __builtin_choose_expr(1, 10, f());
  50 //int h2 = __builtin_expect(0, 0);
  51 extern long int bi0;
  52 extern __typeof__(__builtin_expect(0, 0)) bi0;