gcc/testsuite/gcc.target/aarch64/sve/slp_9.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -ftree-vectorize" } */
   3
   4 #include <stdint.h>
   5
   6 #define VEC_PERM(TYPE1, TYPE2)                                  \
   7 void __attribute__ ((noinline, noclone))                        \
   8 vec_slp_##TYPE1##_##TYPE2 (TYPE1 *restrict a,                   \
   9                            TYPE2 *restrict b, int n)            \
  10 {                                                               \
  11   for (int i = 0; i < n; ++i)                                   \
  12     {                                                           \
  13       a[i * 2] += 1;                                            \
  14       a[i * 2 + 1] += 2;                                        \
  15       b[i * 2] += 3;                                            \
  16       b[i * 2 + 1] += 4;                                        \
  17     }                                                           \
  18 }
  19
  20 #define TEST_ALL(T)                             \
  21   T (int8_t, uint16_t)                          \
  22   T (uint8_t, int16_t)                          \
  23   T (int16_t, uint32_t)                         \
  24   T (uint16_t, int32_t)                         \
  25   T (int32_t, double)                           \
  26   T (uint32_t, int64_t)                         \
  27   T (float, uint64_t)
  28
  29 TEST_ALL (VEC_PERM)
  30
  31 /* The loop should be fully-masked.  The load XFAILs for fixed-length
  32    SVE account for extra loads from the constant pool.  */
  33 /* { dg-final { scan-assembler-times {\tld1b\t} 2 { xfail { aarch64_sve && { ! vect_variable_length } } } } }*/
  34 /* { dg-final { scan-assembler-times {\tst1b\t} 2 } } */
  35 /* { dg-final { scan-assembler-times {\tld1h\t} 6 { xfail { aarch64_sve && { ! vect_variable_length } } } } } */
  36 /* { dg-final { scan-assembler-times {\tst1h\t} 6 } } */
  37 /* { dg-final { scan-assembler-times {\tld1w\t} 7 { xfail { aarch64_sve && { ! vect_variable_length } } } } } */
  38 /* { dg-final { scan-assembler-times {\tst1w\t} 7 } } */
  39 /* { dg-final { scan-assembler-times {\tld1d\t} 6 { xfail { aarch64_sve && { ! vect_variable_length } } } } } */
  40 /* { dg-final { scan-assembler-times {\tst1d\t} 6 } } */
  41 /* { dg-final { scan-assembler-not {\tldr} } } */
  42 /* { dg-final { scan-assembler-not {\tstr} } } */
  43
  44 /* We should use WHILEs for the accesses to "a" and unpacks for the accesses
  45    to "b".  */
  46 /* { dg-final { scan-assembler-times {\twhilelo\tp[0-7]\.b} 4 } } */
  47 /* { dg-final { scan-assembler-times {\twhilelo\tp[0-7]\.h} 4 } } */
  48 /* { dg-final { scan-assembler-times {\twhilelo\tp[0-7]\.s} 6 } } */
  49 /* { dg-final { scan-assembler-not {\twhilelo\tp[0-7]\.d} } } */
  50 /* { dg-final { scan-assembler-times {\tpunpklo\tp[0-7]\.h} 7 } } */
  51 /* { dg-final { scan-assembler-times {\tpunpkhi\tp[0-7]\.h} 7 } } */
  52
  53 /* { dg-final { scan-assembler-not {\tuqdec} } } */