1  /* Test complex arithmetic with signed zeros.  Mixed real/complex
       2     subtraction.  */
       3  /* { dg-do run } */
       4  /* { dg-options "-std=gnu99" { target c } } */
       5  /* { dg-skip-if "ptx can elide zero additions" { "nvptx-*-*" } { "-O0" } { "" } } */
       6  
       7  #include "complex-sign.h"
       8  
       9  #define CHECK_SUB(TYPE, COPY, ZERO, ZEROI)				\
      10    do {									\
      11      CHECK_ARITH_RC (TYPE, COPY, ZERO, ZEROI, -, +, +, +, +, -);		\
      12      CHECK_ARITH_RC (TYPE, COPY, ZERO, ZEROI, -, +, +, -, +, +);		\
      13      CHECK_ARITH_RC (TYPE, COPY, ZERO, ZEROI, -, +, -, +, +, -);		\
      14      CHECK_ARITH_RC (TYPE, COPY, ZERO, ZEROI, -, +, -, -, +, +);		\
      15      CHECK_ARITH_RC (TYPE, COPY, ZERO, ZEROI, -, -, +, +, -, -);		\
      16      CHECK_ARITH_RC (TYPE, COPY, ZERO, ZEROI, -, -, +, -, -, +);		\
      17      CHECK_ARITH_RC (TYPE, COPY, ZERO, ZEROI, -, -, -, +, +, -);		\
      18      CHECK_ARITH_RC (TYPE, COPY, ZERO, ZEROI, -, -, -, -, +, +);		\
      19      CHECK_ARITH_CR (TYPE, COPY, ZERO, ZEROI, -, +, +, +, ZERO, +, +);	\
      20      CHECK_ARITH_CR (TYPE, COPY, ZERO, ZEROI, -, +, +, -, ZERO, +, +);	\
      21      CHECK_ARITH_CR (TYPE, COPY, ZERO, ZEROI, -, +, -, +, ZERO, +, -);	\
      22      CHECK_ARITH_CR (TYPE, COPY, ZERO, ZEROI, -, +, -, -, ZERO, +, -);	\
      23      CHECK_ARITH_CR (TYPE, COPY, ZERO, ZEROI, -, -, +, +, ZERO, -, +);	\
      24      CHECK_ARITH_CR (TYPE, COPY, ZERO, ZEROI, -, -, +, -, ZERO, +, +);	\
      25      CHECK_ARITH_CR (TYPE, COPY, ZERO, ZEROI, -, -, -, +, ZERO, -, -);	\
      26      CHECK_ARITH_CR (TYPE, COPY, ZERO, ZEROI, -, -, -, -, ZERO, +, -);	\
      27    } while (0)
      28  
      29  void
      30  check_sub_float (void)
      31  {
      32    CHECK_SUB (float, __builtin_copysignf, 0.0f, 0.0if);
      33  }
      34  
      35  void
      36  check_sub_double (void)
      37  {
      38    CHECK_SUB (double, __builtin_copysign, 0.0, 0.0i);
      39  }
      40  
      41  void
      42  check_sub_long_double (void)
      43  {
      44    CHECK_SUB (long double, __builtin_copysignl, 0.0l, 0.0il);
      45  }
      46  
      47  int
      48  main (void)
      49  {
      50    check_sub_float ();
      51    check_sub_double ();
      52    check_sub_long_double ();
      53    exit (0);
      54  }