gcc/testsuite/gcc.target/aarch64/store_lane0_str_1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2" } */
   3
   4 typedef int v2si __attribute__ ((vector_size (8)));
   5 typedef float v2sf __attribute__ ((vector_size (8)));
   6 typedef short v4hi __attribute__ ((vector_size (8)));
   7 typedef __fp16 v4hf __attribute__ ((vector_size (8)));
   8 typedef char v8qi __attribute__ ((vector_size (8)));
   9
  10 typedef int v4si __attribute__ ((vector_size (16)));
  11 typedef float v4sf __attribute__ ((vector_size (16)));
  12 typedef short v8hi __attribute__ ((vector_size (16)));
  13 typedef __fp16 v8hf __attribute__ ((vector_size (16)));
  14 typedef char v16qi __attribute__ ((vector_size (16)));
  15 typedef long long v2di __attribute__ ((vector_size (16)));
  16 typedef double v2df __attribute__ ((vector_size (16)));
  17
  18 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
  19 #define LANE(N) (N - 1)
  20 #else
  21 #define LANE(N) 0
  22 #endif
  23
  24 #define FUNC(T, E, N)                   \
  25 void                                    \
  26 store_lane_##T (T x, E *y)              \
  27 {                                       \
  28   y[0] = x[N - 1 - LANE (N)];           \
  29   y[3] = x[LANE (N)];                   \
  30 }
  31
  32 FUNC (v2si, int, 2)
  33 FUNC (v2sf, float, 2)
  34 FUNC (v4hi, short, 4)
  35 FUNC (v4hf, __fp16, 4)
  36 FUNC (v8qi, char, 8)
  37
  38 FUNC (v4si, int, 4)
  39 FUNC (v4sf, float, 4)
  40 FUNC (v8hi, short, 8)
  41 FUNC (v8hf, __fp16, 8)
  42 FUNC (v16qi, char, 16)
  43 FUNC (v2di, long long, 2)
  44 FUNC (v2df, double, 2)
  45
  46 /* When storing lane zero of a vector we can use the scalar STR instruction
  47    that supports more addressing modes.  */
  48
  49 /* { dg-final { scan-assembler-times "str\ts\[0-9\]+" 4 } } */
  50 /* { dg-final { scan-assembler-times "str\tb\[0-9\]+" 2 } } */
  51 /* { dg-final { scan-assembler-times "str\th\[0-9\]+" 4 } } */
  52 /* { dg-final { scan-assembler-times "str\td\[0-9\]+" 2 } } */
  53 /* { dg-final { scan-assembler-not "umov" } } */
  54 /* { dg-final { scan-assembler-not "dup" } } */