extern "C" void abort (); int w; struct S { int s, &t; int *p; S (int *x) : s (0), t (w), p(x) {}; void foo (short &); void bar (short &); void baz (short &); void qux (short &); }; void S::foo (short &x) { #pragma omp simd lastprivate (conditional: x, s, t) for (int i = 0; i < 1025; ++i) { if (p[i]) x = i; if (p[i + 1025]) s = i + 3; if (p[i + 2 * 1025]) t = i + 6; } } void S::bar (short &x) { #pragma omp simd lastprivate (conditional: x, s, t) collapse (3) if (0) for (int i = 0; i < 15; ++i) for (int j = -4; j < 9; j++) for (int k = 12; k > 7; --k) { int l = (k - 8) + (j + 4) * 5 + i * 13 * 5; if (p[l]) x = l; if (p[l + 1025]) s = l + 3; if (p[l + 1025 * 2]) t = l + 6; } } void S::baz (short &x) { #pragma omp parallel for simd lastprivate (conditional: x, s, t) if (simd: 0) for (int i = 0; i < 1025; ++i) { if (p[i]) x = i; if (p[i + 1025]) s = i + 3; if (p[i + 2 * 1025]) t = i + 6; } } void S::qux (short &x) { #pragma omp for simd lastprivate (conditional: x, s, t) collapse (3) schedule (simd: guided, 8) for (int i = 0; i < 15; ++i) for (int j = -4; j < 9; j++) for (int k = 12; k > 7; --k) { int l = (k - 8) + (j + 4) * 5 + i * 13 * 5; if (p[l]) x = l; if (p[l + 1025]) s = l + 3; if (p[l + 1025 * 2]) t = l + 6; } } int main () { short x; int a[3 * 1025]; for (int i = 0; i < 1025; ++i) { a[i] = ((i % 17) == 7); a[1025 + i] = ((i % 19) == 2); a[2 * 1025 + i] = ((i % 23) == 5); } S s = a; s.foo (x); if (x != 1010 || s.s != 1012 || s.t != 1023) abort (); s.bar (x); if (x != 959 || s.s != 974 || s.t != 977) abort (); #pragma omp parallel s.baz (x); if (x != 1010 || s.s != 1012 || s.t != 1023) abort (); s.qux (x); if (x != 959 || s.s != 974 || s.t != 977) abort (); }