Viewing file:  slp-reduc-4.c (1.75 KB) -rw-r--r--
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/* { dg-require-effective-target vect_int } */
#include <stdarg.h>
#include "tree-vect.h"
#define N 128
unsigned int uc[N];
/* Vectorization of reduction using loop-aware SLP. */
__attribute__ ((noinline))
int main1 (int n, int res0, int res1, int res2, int res3, int res4, int res5, int res6, int res7)
{
int i;
unsigned int max0 = 5, max1 = 10, max2 = 20, max3 = 30, max4 = 2, max5 = 13, max6 = 7, max7 = 313;
for (i = 0; i < n; i++) {
max2 = max2 < uc[8*i+2] ? uc[8*i+2] : max2;
max3 = max3 < uc[8*i+3] ? uc[8*i+3] : max3;
max1 = max1 < uc[8*i+1] ? uc[8*i+1] : max1;
max7 = max7 < uc[8*i+7] ? uc[8*i+7] : max7;
max6 = max6 < uc[8*i+6] ? uc[8*i+6] : max6;
max0 = max0 < uc[8*i] ? uc[8*i] : max0;
max4 = max4 < uc[8*i+4] ? uc[8*i+4] : max4;
max5 = max5 < uc[8*i+5] ? uc[8*i+5] : max5;
}
/* Check results: */
if (max0 != res0
|| max1 != res1
|| max2 != res2
|| max3 != res3
|| max4 != res4
|| max5 != res5
|| max6 != res6
|| max7 != res7)
abort ();
return 0;
}
int main (void)
{
int i;
check_vect ();
for (i = 0; i < N; i++)
{
uc[i] = i+3;
__asm__ volatile ("");
}
main1 (N/8, 123, 124, 125, 126, 127, 128, 129, 313);
return 0;
}
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail vect_no_int_min_max } } } */
/* For variable-length SVE, the number of scalar statements in the
reduction exceeds the number of elements in a 128-bit granule. */
/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { xfail { vect_no_int_min_max || { aarch64_sve && vect_variable_length } } } } } */
/* { dg-final { scan-tree-dump-times "VEC_PERM_EXPR" 0 "vect" { xfail { aarch64_sve && vect_variable_length } } } } */
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