gcc/testsuite/gcc.target/aarch64/ushr64_1.c

   1 /* Test logical SIMD shift works 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_vshr_n_u64_64 (uint64x1_t passed, uint64_t expected)
  11 {
  12   return vget_lane_u64 (vshr_n_u64 (passed, 64), 0) != expected;
  13 }
  14
  15 int __attribute__ ((noinline))
  16 test_vshr_n_u64_4 (uint64x1_t passed, uint64_t expected)
  17 {
  18   return vget_lane_u64 (vshr_n_u64 (passed, 4), 0) != expected;
  19 }
  20
  21 int __attribute__ ((noinline))
  22 test_vshr_n_u64_0 (uint64x1_t passed, uint64_t expected)
  23 {
  24   return vget_lane_u64 (vshr_n_u64 (passed, 0), 0) != expected;
  25 }
  26
  27 int __attribute__ ((noinline))
  28 test_vshrd_n_u64_64 (uint64_t passed, uint64_t expected)
  29 {
  30   return vshrd_n_u64 (passed, 64) != expected;
  31 }
  32
  33 int __attribute__ ((noinline))
  34 test_vshrd_n_u64_4 (uint64_t passed, uint64_t expected)
  35 {
  36   return vshrd_n_u64 (passed, 4) != expected;
  37 }
  38
  39 int __attribute__ ((noinline))
  40 test_vshrd_n_u64_0 (uint64_t passed, uint64_t expected)
  41 {
  42   return vshrd_n_u64 (passed, 0) != expected;
  43 }
  44
  45 /* { dg-final { (scan-assembler-times "ushr\\td\[0-9\]+, d\[0-9\]+, 4" 2)  || \
  46    (scan-assembler-times "lsr\\tx\[0-9\]+, x\[0-9\]+, 4" 2) } } */
  47 /* { dg-final { scan-assembler-not "ushr\\td\[0-9\]+, d\[0-9\]+, 0" } } */
  48
  49 int
  50 main (int argc, char *argv[])
  51 {
  52   /* Testing vshr_n_u64.  */
  53   if (test_vshr_n_u64_64 (vcreate_u64 (0x0000000080000000), 0))
  54     abort ();
  55   if (test_vshr_n_u64_64 (vcreate_u64 (0xffffffff80000000), 0))
  56     abort ();
  57
  58   if (test_vshr_n_u64_4 (vcreate_u64 (0x0000000080000000), 0x0000000008000000))
  59     abort ();
  60   if (test_vshr_n_u64_4 (vcreate_u64 (0xffffffff80000000), 0x0ffffffff8000000))
  61     abort ();
  62
  63   if (test_vshr_n_u64_0 (vcreate_u64 (0x0000000080000000), 0x0000000080000000))
  64     abort ();
  65
  66   /* Testing vshrd_n_u64.  */
  67   if (test_vshrd_n_u64_64 (0x0000000080000000, 0))
  68     abort ();
  69   if (test_vshrd_n_u64_64 (0xffffffff80000000, 0))
  70     abort ();
  71
  72   if (test_vshrd_n_u64_4 (0x0000000080000000, 0x0000000008000000))
  73     abort ();
  74   if (test_vshrd_n_u64_4 (0xffffffff80000000, 0x0ffffffff8000000))
  75     abort ();
  76
  77   if (test_vshrd_n_u64_0 (0x0000000080000000, 0x0000000080000000))
  78     abort ();
  79
  80   return 0;
  81 }
  82