Viewing file:  pr46032.c (1.12 KB) -rw-r--r--
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/* { dg-do compile } */
/* { dg-require-effective-target fopenmp } */
/* { dg-require-effective-target vect_int } */
/* { dg-additional-options "-fopenmp -fipa-pta" } */
extern void abort (void);
#define nEvents 1000
static void __attribute__((noinline, noclone, optimize("-fno-tree-vectorize")))
init (unsigned *results, unsigned *pData)
{
unsigned int i;
for (i = 0; i < nEvents; ++i)
pData[i] = i % 3;
}
static void __attribute__((noinline, noclone, optimize("-fno-tree-vectorize")))
check (unsigned *results)
{
unsigned sum = 0;
for (int idx = 0; idx < (int)nEvents; idx++)
sum += results[idx];
if (sum != 1998)
abort ();
}
int
main (void)
{
unsigned results[nEvents];
unsigned pData[nEvents];
unsigned coeff = 2;
init (&results[0], &pData[0]);
#pragma omp parallel for
for (int idx = 0; idx < (int)nEvents; idx++)
results[idx] = coeff * pData[idx];
check (&results[0]);
return 0;
}
/* { dg-final { scan-tree-dump-times "vectorized 1 loop" 1 "vect" { xfail { vect_no_align && { ! vect_hw_misalign } } } } } */
/* { dg-final { scan-tree-dump-not "versioning for alias required" "vect" } } */
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