clang/test/CodeGen/complex-builtins-3.c

   1 // RUN: %clang_cc1 %s -O1 -emit-llvm -o - | FileCheck %s
   2
   3 /* Test for builtin conj, creal, cimag.  */
   4 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
   5
   6 extern float _Complex conjf (float _Complex);
   7 extern double _Complex conj (double _Complex);
   8 extern long double _Complex conjl (long double _Complex);
   9
  10 extern float crealf (float _Complex);
  11 extern double creal (double _Complex);
  12 extern long double creall (long double _Complex);
  13
  14 extern float cimagf (float _Complex);
  15 extern double cimag (double _Complex);
  16 extern long double cimagl (long double _Complex);
  17
  18 extern void abort (void);
  19 extern void link_error (void);
  20
  21 int
  22 main (void)
  23 {
  24   /* For each type, test both runtime and compile time (constant folding)
  25      optimization.  */
  26   volatile float _Complex fc = 1.0F + 2.0iF;
  27   volatile double _Complex dc = 1.0 + 2.0i;
  28   volatile long double _Complex ldc = 1.0L + 2.0iL;
  29   /* Test floats.  */
  30   if (__builtin_conjf (fc) != 1.0F - 2.0iF)
  31     abort ();
  32   if (__builtin_conjf (1.0F + 2.0iF) != 1.0F - 2.0iF)
  33     link_error ();
  34   if (__builtin_crealf (fc) != 1.0F)
  35     abort ();
  36   if (__builtin_crealf (1.0F + 2.0iF) != 1.0F)
  37     link_error ();
  38   if (__builtin_cimagf (fc) != 2.0F)
  39     abort ();
  40   if (__builtin_cimagf (1.0F + 2.0iF) != 2.0F)
  41     link_error ();
  42   /* Test doubles.  */
  43   if (__builtin_conj (dc) != 1.0 - 2.0i)
  44     abort ();
  45   if (__builtin_conj (1.0 + 2.0i) != 1.0 - 2.0i)
  46     link_error ();
  47   if (__builtin_creal (dc) != 1.0)
  48     abort ();
  49   if (__builtin_creal (1.0 + 2.0i) != 1.0)
  50     link_error ();
  51   if (__builtin_cimag (dc) != 2.0)
  52     abort ();
  53   if (__builtin_cimag (1.0 + 2.0i) != 2.0)
  54     link_error ();
  55   /* Test long doubles.  */
  56   if (__builtin_conjl (ldc) != 1.0L - 2.0iL)
  57     abort ();
  58   if (__builtin_conjl (1.0L + 2.0iL) != 1.0L - 2.0iL)
  59     link_error ();
  60   if (__builtin_creall (ldc) != 1.0L)
  61     abort ();
  62   if (__builtin_creall (1.0L + 2.0iL) != 1.0L)
  63     link_error ();
  64   if (__builtin_cimagl (ldc) != 2.0L)
  65     abort ();
  66   if (__builtin_cimagl (1.0L + 2.0iL) != 2.0L)
  67     link_error ();
  68 }
  69
  70 // CHECK-NOT: link_error