gcc/testsuite/gcc.dg/torture/complex-sign-sub.c

   1 /* Test complex arithmetic with signed zeros.  Pure complex
   2    subtraction.  */
   3 /* { dg-do run } */
   4 /* { dg-options "-std=gnu99" } */
   5
   6 #include "complex-sign.h"
   7
   8 #define CHECK_SUB(TYPE, COPY, ZERO, ZEROI)                      \
   9   do {                                                          \
  10     CHECK_ARITH (TYPE, COPY, ZERO, ZEROI, -, +, +, +, +, +, +); \
  11     CHECK_ARITH (TYPE, COPY, ZERO, ZEROI, -, +, +, +, -, +, +); \
  12     CHECK_ARITH (TYPE, COPY, ZERO, ZEROI, -, +, +, -, +, +, +); \
  13     CHECK_ARITH (TYPE, COPY, ZERO, ZEROI, -, +, +, -, -, +, +); \
  14     CHECK_ARITH (TYPE, COPY, ZERO, ZEROI, -, +, -, +, +, +, -); \
  15     CHECK_ARITH (TYPE, COPY, ZERO, ZEROI, -, +, -, +, -, +, +); \
  16     CHECK_ARITH (TYPE, COPY, ZERO, ZEROI, -, +, -, -, +, +, -); \
  17     CHECK_ARITH (TYPE, COPY, ZERO, ZEROI, -, +, -, -, -, +, +); \
  18     CHECK_ARITH (TYPE, COPY, ZERO, ZEROI, -, -, +, +, +, -, +); \
  19     CHECK_ARITH (TYPE, COPY, ZERO, ZEROI, -, -, +, +, -, -, +); \
  20     CHECK_ARITH (TYPE, COPY, ZERO, ZEROI, -, -, +, -, +, +, +); \
  21     CHECK_ARITH (TYPE, COPY, ZERO, ZEROI, -, -, +, -, -, +, +); \
  22     CHECK_ARITH (TYPE, COPY, ZERO, ZEROI, -, -, -, +, +, -, -); \
  23     CHECK_ARITH (TYPE, COPY, ZERO, ZEROI, -, -, -, +, -, -, +); \
  24     CHECK_ARITH (TYPE, COPY, ZERO, ZEROI, -, -, -, -, +, +, -); \
  25     CHECK_ARITH (TYPE, COPY, ZERO, ZEROI, -, -, -, -, -, +, +); \
  26   } while (0)
  27
  28 void
  29 check_sub_float (void)
  30 {
  31   CHECK_SUB (float, __builtin_copysignf, 0.0f, 0.0if);
  32 }
  33
  34 void
  35 check_sub_double (void)
  36 {
  37   CHECK_SUB (double, __builtin_copysign, 0.0, 0.0i);
  38 }
  39
  40 void
  41 check_sub_long_double (void)
  42 {
  43   CHECK_SUB (long double, __builtin_copysignl, 0.0l, 0.0il);
  44 }
  45
  46 int
  47 main (void)
  48 {
  49   check_sub_float ();
  50   check_sub_double ();
  51   check_sub_long_double ();
  52   exit (0);
  53 }