gcc/testsuite/c-c++-common/gomp/pr60823-3.c

/* PR tree-optimization/60823 */
/* { dg-do compile } */
/* { dg-options "-O2 -fopenmp-simd -fno-strict-aliasing" } */

void bar (char *, double *);

#if __SIZEOF_DOUBLE__ >= 4

struct S { char c[sizeof (double)]; };
void baz (struct S, struct S);
union U { struct S s; double d; };

#pragma omp declare simd simdlen(4) notinbranch
__attribute__((noinline)) int
foo (double c1, double c2)
{
  double *a = &c1;
  char *b = (char *) &c1 + 2;

  b[-2]++;
  b[1]--;
  *a++;
  c2++;
  bar ((char *) &c2 + 1, &c2);
  c2 *= 3.0;
  bar (b, a);
  baz (((union U) { .d = c1 }).s, ((union U) { .d = c2 }).s);
  baz (*(struct S *)&c1, *(struct S *)&c2);
  return c1 + c2 + ((struct S *)&c1)->c[1];
}
/* { dg-warning "GCC does not currently support mixed size types for 'simd' functions" "" { target aarch64*-*-* } .-16 } */

#endif