gcc/testsuite/gcc.target/aarch64/vqneg_s64_1.c

   1 /* Test vqneg_s64 intrinsics work correctly.  */
   2 /* { dg-do run } */
   3 /* { dg-options "--save-temps" } */
   4
   5 #include <arm_neon.h>
   6
   7 extern void abort (void);
   8
   9 int __attribute__ ((noinline))
  10 test_vqneg_s64 (int64x1_t passed, int64_t expected)
  11 {
  12   return vget_lane_s64 (vqneg_s64 (passed), 0) != expected;
  13 }
  14
  15 int __attribute__ ((noinline))
  16 test_vqnegd_s64 (int64_t passed, int64_t expected)
  17 {
  18   return vqnegd_s64 (passed) != expected;
  19 }
  20
  21 /* { dg-final { scan-assembler-times "sqneg\\td\[0-9\]+, d\[0-9\]+" 2 } } */
  22
  23 int
  24 main (int argc, char **argv)
  25 {
  26   /* Basic test.  */
  27   if (test_vqneg_s64 (vcreate_s64 (-1), 1))
  28     abort ();
  29   if (test_vqnegd_s64 (-1, 1))
  30     abort ();
  31
  32   /* Negating max int64_t.  */
  33   if (test_vqneg_s64 (vcreate_s64 (0x7fffffffffffffff), 0x8000000000000001))
  34     abort ();
  35   if (test_vqnegd_s64 (0x7fffffffffffffff, 0x8000000000000001))
  36     abort ();
  37
  38   /* Negating min int64_t.
  39      Note, exact negation cannot be represented as int64_t.  */
  40   if (test_vqneg_s64 (vcreate_s64 (0x8000000000000000), 0x7fffffffffffffff))
  41     abort ();
  42   if (test_vqnegd_s64 (0x8000000000000000, 0x7fffffffffffffff))
  43     abort ();
  44
  45   return 0;
  46 }
  47 /* { dg-final { cleanup-saved-temps } } */