Viewing file:  vect-reduc-dot-20.c (1.22 KB) -rw-r--r--
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/* { dg-require-effective-target vect_int } */
/* { dg-require-effective-target arm_v8_2a_i8mm_neon_hw { target { aarch64*-*-* || arm*-*-* } } } */
/* { dg-add-options arm_v8_2a_i8mm } */
#include "tree-vect.h"
#define N 50
#ifndef SIGNEDNESS_1
#define SIGNEDNESS_1 unsigned
#define SIGNEDNESS_2 signed
#define SIGNEDNESS_3 signed
#define SIGNEDNESS_4 unsigned
#endif
SIGNEDNESS_1 long long __attribute__ ((noipa))
f (SIGNEDNESS_1 long long res, SIGNEDNESS_3 short *restrict a,
SIGNEDNESS_4 char *restrict b)
{
for (__INTPTR_TYPE__ i = 0; i < N; ++i)
{
int av = a[i];
int bv = b[i];
SIGNEDNESS_2 long long mult = av * bv;
res += mult;
}
return res;
}
#define BASE ((SIGNEDNESS_3 int) -1 < 0 ? -126 : 4)
#define OFFSET 20
int
main (void)
{
check_vect ();
SIGNEDNESS_3 short a[N];
SIGNEDNESS_4 char b[N];
SIGNEDNESS_1 long long expected = 0x12345;
for (int i = 0; i < N; ++i)
{
a[i] = BASE + i * 5;
b[i] = BASE + OFFSET + i * 4;
asm volatile ("" ::: "memory");
expected += (SIGNEDNESS_2 int) (a[i] * b[i]);
}
if (f (0x12345, a, b) != expected)
__builtin_abort ();
}
/* { dg-final { scan-tree-dump "vect_recog_dot_prod_pattern: detected" "vect" } } */
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