gcc/testsuite/gcc.target/aarch64/vect_ctz_1.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O3 -save-temps -fno-inline -fno-vect-cost-model" } */
   3
   4 extern void abort ();
   5
   6 #define TEST(name, subname, count) \
   7 void \
   8 count_tz_##name (unsigned *__restrict a, int *__restrict b) \
   9 { \
  10   int i; \
  11   for (i = 0; i < count; i++) \
  12     b[i] = __builtin_##subname (a[i]); \
  13 }
  14
  15 #define CHECK(name, count, input, output) \
  16   count_tz_##name (input, output); \
  17   for (i = 0; i < count; i++) \
  18     { \
  19       if (output[i] != r[i]) \
  20         abort (); \
  21     }
  22
  23 TEST (v4si, ctz, 4)
  24 TEST (v2si, ctz, 2)
  25 /* { dg-final { scan-assembler "clz\tv\[0-9\]+\.4s" } } */
  26 /* { dg-final { scan-assembler "clz\tv\[0-9\]+\.2s" } } */
  27
  28 int
  29 main ()
  30 {
  31   unsigned int x4[4] = { 0x0, 0xFF80, 0x1FFFF, 0xFF000000 };
  32   int r[4] = { 32, 7, 0, 24 };
  33   int d[4], i;
  34
  35   CHECK (v4si, 4, x4, d);
  36   CHECK (v2si, 2, x4, d);
  37
  38   return 0;
  39 }
  40