| /* { dg-do compile } */ |
| /* { dg-options "-O2 -ftree-vectorize" } */ |
| |
| #include <stdint.h> |
| |
| #define DEF_DOT(TYPE1, TYPE2) \ |
| TYPE1 __attribute__ ((noinline, noclone)) \ |
| dot_##TYPE1##_##TYPE2 (TYPE2 *restrict x, TYPE2 *restrict y, int n) \ |
| { \ |
| TYPE1 sum = 0; \ |
| for (int i = 0; i < n; i++) \ |
| { \ |
| sum += x[i] * y[i]; \ |
| } \ |
| return sum; \ |
| } |
| |
| DEF_DOT(uint32_t, uint8_t) |
| DEF_DOT(int32_t, int8_t) |
| DEF_DOT(int64_t, int16_t) |
| |
| /* The uint16_t->uint64_t dot product requires a casting to satisfy the C |
| language rules. */ |
| uint64_t __attribute__ ((noinline, noclone)) |
| dot_uint64_t_uint16_t (uint16_t *restrict x, uint16_t *restrict y, int n) |
| { |
| uint64_t sum = 0; |
| for (int i = 0; i < n; i++) |
| { |
| sum += (unsigned int)x[i] * y[i]; |
| } |
| return sum; |
| } |
| |
| /* { dg-final { scan-assembler-times {\tudot\tz[0-9]+\.s, z[0-9]+\.b, z[0-9]+\.b\n} 1 } } */ |
| /* { dg-final { scan-assembler-times {\tsdot\tz[0-9]+\.s, z[0-9]+\.b, z[0-9]+\.b\n} 1 } } */ |
| /* { dg-final { scan-assembler-times {\tudot\tz[0-9]+\.d, z[0-9]+\.h, z[0-9]+\.h\n} 1 } } */ |
| /* { dg-final { scan-assembler-times {\tsdot\tz[0-9]+\.d, z[0-9]+\.h, z[0-9]+\.h\n} 1 } } */ |
| /* { dg-final { scan-assembler-times {\twhilelo\t} 8 } } */ |
