Viewing file:  reduc_3_costly.c (1012 B) -rw-r--r--
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/* { dg-do compile } */
/* { dg-options "-O2 -ftree-vectorize -ffast-math -fno-vect-cost-model" } */
#include <stdint.h>
#define NUM_ELEMS(TYPE) (32 / sizeof (TYPE))
#define REDUC_PTR(DSTTYPE, SRCTYPE) \
void reduc_ptr_##DSTTYPE##_##SRCTYPE (DSTTYPE *restrict sum, \
SRCTYPE *restrict array, \
int count) \
{ \
*sum = 0; \
for (int i = 0; i < count; ++i) \
*sum += array[i]; \
}
/* Widening reductions. */
REDUC_PTR (int32_t, int8_t)
REDUC_PTR (int32_t, int16_t)
REDUC_PTR (int64_t, int8_t)
REDUC_PTR (int64_t, int16_t)
REDUC_PTR (int64_t, int32_t)
REDUC_PTR (float, _Float16)
REDUC_PTR (double, float)
/* { dg-final { scan-assembler-times {\tuaddv\td[0-9]+, p[0-7], z[0-9]+\.s\n} 2 } } */
/* { dg-final { scan-assembler-times {\tuaddv\td[0-9]+, p[0-7], z[0-9]+\.d\n} 3 } } */
/* { dg-final { scan-assembler-times {\tfaddv\ts[0-9]+, p[0-7], z[0-9]+\.s\n} 1 } } */
/* { dg-final { scan-assembler-times {\tfaddv\td[0-9]+, p[0-7], z[0-9]+\.d\n} 1 } } */
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