// RUN: %clang_cc1 -fsyntax-only -fopenmp -fopenmp-version=45 -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp4 %s -Wuninitialized
// RUN: %clang_cc1 -fsyntax-only -fopenmp -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp5 %s -Wuninitialized
// RUN: %clang_cc1 -fsyntax-only -fopenmp-simd -fopenmp-version=45 -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp4 %s -Wuninitialized
// RUN: %clang_cc1 -fsyntax-only -fopenmp-simd -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp5 %s -Wuninitialized
class S {
int a;
S() : a(0) {}
public:
S(int v) : a(v) {}
S(const S &s) : a(s.a) {}
};
static int sii;
// expected-note@+1 {{defined as threadprivate or thread local}}
#pragma omp threadprivate(sii)
static int globalii;
int test_iteration_spaces() {
const int N = 100;
float a[N], b[N], c[N];
int ii, jj, kk;
float fii;
double dii;
#pragma omp parallel
#pragma omp for simd
for (int i = 0; i < 10; i += 1) {
c[i] = a[i] + b[i];
}
#pragma omp parallel
#pragma omp for simd
for (char i = 0; i < 10; i++) {
c[i] = a[i] + b[i];
}
#pragma omp parallel
#pragma omp for simd
for (char i = 0; i < 10; i += '\1') {
c[i] = a[i] + b[i];
}
#pragma omp parallel
#pragma omp for simd
for (long long i = 0; i < 10; i++) {
c[i] = a[i] + b[i];
}
#pragma omp parallel
// expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}}
#pragma omp for simd
for (long long i = 0; i < 10; i += 1.5) {
c[i] = a[i] + b[i];
}
#pragma omp parallel
#pragma omp for simd
for (long long i = 0; i < 'z'; i += 1u) {
c[i] = a[i] + b[i];
}
#pragma omp parallel
// expected-error@+2 {{variable must be of integer or random access iterator type}}
#pragma omp for simd
for (float fi = 0; fi < 10.0; fi++) {
c[(int)fi] = a[(int)fi] + b[(int)fi];
}
#pragma omp parallel
// expected-error@+2 {{variable must be of integer or random access iterator type}}
#pragma omp for simd
for (double fi = 0; fi < 10.0; fi++) {
c[(int)fi] = a[(int)fi] + b[(int)fi];
}
#pragma omp parallel
// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
#pragma omp for simd
for (int &ref = ii; ref < 10; ref++) {
}
#pragma omp parallel
// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
#pragma omp for simd
for (int i; i < 10; i++)
c[i] = a[i];
#pragma omp parallel
// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
#pragma omp for simd
for (int i = 0, j = 0; i < 10; ++i)
c[i] = a[i];
#pragma omp parallel
// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
#pragma omp for simd
for (; ii < 10; ++ii)
c[ii] = a[ii];
#pragma omp parallel
// expected-warning@+3 {{expression result unused}}
// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
#pragma omp for simd
for (ii + 1; ii < 10; ++ii)
c[ii] = a[ii];
#pragma omp parallel
// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
#pragma omp for simd
for (c[ii] = 0; ii < 10; ++ii)
c[ii] = a[ii];
#pragma omp parallel
// Ok to skip parenthesises.
#pragma omp for simd
for (((ii)) = 0; ii < 10; ++ii)
c[ii] = a[ii];
#pragma omp parallel
// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} omp5-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'i'}}
#pragma omp for simd
for (int i = 0; i; i++)
c[i] = a[i];
#pragma omp parallel
// omp4-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} omp5-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'i'}}
// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}}
#pragma omp for simd
for (int i = 0; jj < kk; ii++)
c[i] = a[i];
#pragma omp parallel
// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} omp5-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'i'}}
#pragma omp for simd
for (int i = 0; !!i; i++)
c[i] = a[i];
#pragma omp parallel
// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}}
#pragma omp for simd
for (int i = 0; i != 1; i++)
c[i] = a[i];
#pragma omp parallel
// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} omp5-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'i'}}
#pragma omp for simd
for (int i = 0;; i++)
c[i] = a[i];
#pragma omp parallel
// Ok.
#pragma omp for simd
for (int i = 11; i > 10; i--)
c[i] = a[i];
#pragma omp parallel
// Ok.
#pragma omp for simd
for (int i = 0; i < 10; ++i)
c[i] = a[i];
#pragma omp parallel
// Ok.
#pragma omp for simd
for (ii = 0; ii < 10; ++ii)
c[ii] = a[ii];
#pragma omp parallel
// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
#pragma omp for simd
for (ii = 0; ii < 10; ++jj)
c[ii] = a[jj];
#pragma omp parallel
// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
#pragma omp for simd
for (ii = 0; ii < 10; ++++ii)
c[ii] = a[ii];
#pragma omp parallel
// Ok but undefined behavior (in general, cannot check that incr
// is really loop-invariant).
#pragma omp for simd
for (ii = 0; ii < 10; ii = ii + ii)
c[ii] = a[ii];
#pragma omp parallel
// expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}}
#pragma omp for simd
for (ii = 0; ii < 10; ii = ii + 1.0f)
c[ii] = a[ii];
#pragma omp parallel
// Ok - step was converted to integer type.
#pragma omp for simd
for (ii = 0; ii < 10; ii = ii + (int)1.1f)
c[ii] = a[ii];
#pragma omp parallel
// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
#pragma omp for simd
for (ii = 0; ii < 10; jj = ii + 2)
c[ii] = a[ii];
#pragma omp parallel
// expected-warning@+3 {{relational comparison result unused}}
// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
#pragma omp for simd
for (ii = 0; ii<10; jj> kk + 2)
c[ii] = a[ii];
#pragma omp parallel
// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
#pragma omp for simd
for (ii = 0; ii < 10;)
c[ii] = a[ii];
#pragma omp parallel
// expected-warning@+3 {{expression result unused}}
// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
#pragma omp for simd
for (ii = 0; ii < 10; !ii)
c[ii] = a[ii];
#pragma omp parallel
// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
#pragma omp for simd
for (ii = 0; ii < 10; ii ? ++ii : ++jj)
c[ii] = a[ii];
#pragma omp parallel
// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
#pragma omp for simd
for (ii = 0; ii < 10; ii = ii < 10)
c[ii] = a[ii];
#pragma omp parallel
// expected-note@+3 {{loop step is expected to be positive due to this condition}}
// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
#pragma omp for simd
for (ii = 0; ii < 10; ii = ii + 0)
c[ii] = a[ii];
#pragma omp parallel
// expected-note@+3 {{loop step is expected to be positive due to this condition}}
// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
#pragma omp for simd
for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45))
c[ii] = a[ii];
#pragma omp parallel
// expected-note@+3 {{loop step is expected to be positive due to this condition}}
// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
#pragma omp for simd
for (ii = 0; (ii) < 10; ii -= 25)
c[ii] = a[ii];
#pragma omp parallel
// expected-note@+3 {{loop step is expected to be positive due to this condition}}
// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
#pragma omp for simd
for (ii = 0; (ii < 10); ii -= 0)
c[ii] = a[ii];
#pragma omp parallel
// expected-note@+3 {{loop step is expected to be negative due to this condition}}
// expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}}
#pragma omp for simd
for (ii = 0; ii > 10; (ii += 0))
c[ii] = a[ii];
#pragma omp parallel
// expected-note@+3 {{loop step is expected to be positive due to this condition}}
// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
#pragma omp for simd
for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii))
c[ii] = a[ii];
#pragma omp parallel
// expected-note@+3 {{loop step is expected to be negative due to this condition}}
// expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}}
#pragma omp for simd
for ((ii = 0); ii > 10; (ii -= 0))
c[ii] = a[ii];
#pragma omp parallel
// expected-note@+3 {{loop step is expected to be positive due to this condition}}
// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
#pragma omp for simd
for (ii = 0; (ii < 10); (ii -= 0))
c[ii] = a[ii];
#pragma omp parallel
// expected-note@+2 {{defined as firstprivate}}
// expected-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be firstprivate, predetermined as linear}}
#pragma omp for simd firstprivate(ii)
for (ii = 0; ii < 10; ii++)
c[ii] = a[ii];
#pragma omp parallel
#pragma omp for simd linear(ii)
for (ii = 0; ii < 10; ii++)
c[ii] = a[ii];
#pragma omp parallel
// omp4-note@+2 {{defined as private}}
// omp4-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be private, predetermined as linear}}
#pragma omp for simd private(ii)
for (ii = 0; ii < 10; ii++)
c[ii] = a[ii];
#pragma omp parallel
// omp4-note@+2 {{defined as lastprivate}}
// omp4-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be lastprivate, predetermined as linear}}
#pragma omp for simd lastprivate(ii)
for (ii = 0; ii < 10; ii++)
c[ii] = a[ii];
#pragma omp parallel
{
// expected-error@+2 {{loop iteration variable in the associated loop of 'omp for simd' directive may not be threadprivate or thread local, predetermined as linear}}
#pragma omp for simd
for (sii = 0; sii < 10; sii += 1)
c[sii] = a[sii];
}
#pragma omp parallel
{
#pragma omp for simd
for (globalii = 0; globalii < 10; globalii += 1)
c[globalii] = a[globalii];
}
#pragma omp parallel
{
#pragma omp for simd collapse(2)
for (ii = 0; ii < 10; ii += 1)
for (globalii = 0; globalii < 10; globalii += 1)
c[globalii] += a[globalii] + ii;
}
#pragma omp parallel
// omp4-error@+2 {{statement after '#pragma omp for simd' must be a for loop}}
#pragma omp for simd
for (auto &item : a) {
item = item + 1;
}
#pragma omp parallel
// expected-note@+3 {{loop step is expected to be positive due to this condition}}
// expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}}
#pragma omp for simd
for (unsigned i = 9; i < 10; i--) {
c[i] = a[i] + b[i];
}
int(*lb)[4] = nullptr;
#pragma omp parallel
#pragma omp for simd
for (int(*p)[4] = lb; p < lb + 8; ++p) {
}
#pragma omp parallel
// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
#pragma omp for simd
for (int a{0}; a < 10; ++a) {
}
return 0;
}
// Iterators allowed in openmp for-loops.
namespace std {
struct random_access_iterator_tag {};
template <class Iter>
struct iterator_traits {
typedef typename Iter::difference_type difference_type;
typedef typename Iter::iterator_category iterator_category;
};
template <class Iter>
typename iterator_traits<Iter>::difference_type
distance(Iter first, Iter last) { return first - last; }
}
class Iter0 {
public:
Iter0() {}
Iter0(const Iter0 &) {}
Iter0 operator++() { return *this; }
Iter0 operator--() { return *this; }
bool operator<(Iter0 a) { return true; }
};
// expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}}
// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}}
int operator-(Iter0 a, Iter0 b) { return 0; }
class Iter1 {
public:
Iter1(float f = 0.0f, double d = 0.0) {}
Iter1(const Iter1 &) {}
Iter1 operator++() { return *this; }
Iter1 operator--() { return *this; }
bool operator<(Iter1 a) { return true; }
bool operator>=(Iter1 a) { return false; }
};
class GoodIter {
public:
GoodIter() {}
GoodIter(const GoodIter &) {}
GoodIter(int fst, int snd) {}
GoodIter &operator=(const GoodIter &that) { return *this; }
GoodIter &operator=(const Iter0 &that) { return *this; }
GoodIter &operator+=(int x) { return *this; }
explicit GoodIter(void *) {}
GoodIter operator++() { return *this; }
GoodIter operator--() { return *this; }
bool operator!() { return true; }
bool operator<(GoodIter a) { return true; }
bool operator<=(GoodIter a) { return true; }
bool operator>=(GoodIter a) { return false; }
typedef int difference_type;
typedef std::random_access_iterator_tag iterator_category;
};
// expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'GoodIter' for 2nd argument}}
// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}}
int operator-(GoodIter a, GoodIter b) { return 0; }
// expected-note@+1 3 {{candidate function not viable: requires single argument 'a', but 2 arguments were provided}}
GoodIter operator-(GoodIter a) { return a; }
// expected-note@+2 {{candidate function not viable: no known conversion from 'const Iter0' to 'int' for 2nd argument}}
// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'GoodIter' for 1st argument}}
GoodIter operator-(GoodIter a, int v) { return GoodIter(); }
// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'GoodIter' for 1st argument}}
GoodIter operator+(GoodIter a, int v) { return GoodIter(); }
// expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'int' for 1st argument}}
// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'int' for 1st argument}}
GoodIter operator-(int v, GoodIter a) { return GoodIter(); }
// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter0' to 'int' for 1st argument}}
GoodIter operator+(int v, GoodIter a) { return GoodIter(); }
int test_with_random_access_iterator() {
GoodIter begin, end;
Iter0 begin0, end0;
#pragma omp parallel
#pragma omp for simd
for (GoodIter I = begin; I < end; ++I)
++I;
#pragma omp parallel
// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
#pragma omp for simd
for (GoodIter &I = begin; I < end; ++I)
++I;
#pragma omp parallel
#pragma omp for simd
for (GoodIter I = begin; I >= end; --I)
++I;
#pragma omp parallel
// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
#pragma omp for simd
for (GoodIter I(begin); I < end; ++I)
++I;
#pragma omp parallel
// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
#pragma omp for simd
for (GoodIter I(nullptr); I < end; ++I)
++I;
#pragma omp parallel
// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
#pragma omp for simd
for (GoodIter I(0); I < end; ++I)
++I;
#pragma omp parallel
// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
#pragma omp for simd
for (GoodIter I(1, 2); I < end; ++I)
++I;
#pragma omp parallel
#pragma omp for simd
for (begin = GoodIter(0); begin < end; ++begin)
++begin;
#pragma omp parallel
// expected-error@+3 {{invalid operands to binary expression ('GoodIter' and 'const Iter0')}}
// expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}
#pragma omp for simd
for (begin = begin0; begin < end; ++begin)
++begin;
#pragma omp parallel
// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
#pragma omp for simd
for (++begin; begin < end; ++begin)
++begin;
#pragma omp parallel
#pragma omp for simd
for (begin = end; begin < end; ++begin)
++begin;
#pragma omp parallel
// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} omp5-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'I'}}
#pragma omp for simd
for (GoodIter I = begin; I - I; ++I)
++I;
#pragma omp parallel
// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} omp5-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'I'}}
#pragma omp for simd
for (GoodIter I = begin; begin < end; ++I)
++I;
#pragma omp parallel
// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} omp5-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'I'}}
#pragma omp for simd
for (GoodIter I = begin; !I; ++I)
++I;
#pragma omp parallel
// expected-note@+3 {{loop step is expected to be negative due to this condition}}
// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}
#pragma omp for simd
for (GoodIter I = begin; I >= end; I = I + 1)
++I;
#pragma omp parallel
#pragma omp for simd
for (GoodIter I = begin; I >= end; I = I - 1)
++I;
#pragma omp parallel
// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}}
#pragma omp for simd
for (GoodIter I = begin; I >= end; I = -I)
++I;
#pragma omp parallel
// expected-note@+3 {{loop step is expected to be negative due to this condition}}
// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}
#pragma omp for simd
for (GoodIter I = begin; I >= end; I = 2 + I)
++I;
#pragma omp parallel
// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}}
#pragma omp for simd
for (GoodIter I = begin; I >= end; I = 2 - I)
++I;
#pragma omp parallel
// expected-error@+2 {{invalid operands to binary expression ('Iter0' and 'int')}}
#pragma omp for simd
for (Iter0 I = begin0; I < end0; ++I)
++I;
#pragma omp parallel
// Initializer is constructor without params.
// expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}}
// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
#pragma omp for simd
for (Iter0 I; I < end0; ++I)
++I;
Iter1 begin1, end1;
#pragma omp parallel
// expected-error@+3 {{invalid operands to binary expression ('Iter1' and 'Iter1')}}
// expected-error@+2 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}
#pragma omp for simd
for (Iter1 I = begin1; I < end1; ++I)
++I;
#pragma omp parallel
// expected-note@+3 {{loop step is expected to be negative due to this condition}}
// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}
#pragma omp for simd
for (Iter1 I = begin1; I >= end1; ++I)
++I;
#pragma omp parallel
// expected-error@+5 {{invalid operands to binary expression ('Iter1' and 'float')}}
// expected-error@+4 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}
// Initializer is constructor with all default params.
// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
#pragma omp for simd
for (Iter1 I; I < end1; ++I) {
}
return 0;
}
template <typename IT, int ST>
class TC {
public:
int dotest_lt(IT begin, IT end) {
#pragma omp parallel
// expected-note@+3 {{loop step is expected to be positive due to this condition}}
// expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}}
#pragma omp for simd
for (IT I = begin; I < end; I = I + ST) {
++I;
}
#pragma omp parallel
// expected-note@+3 {{loop step is expected to be positive due to this condition}}
// expected-error@+2 {{increment expression must cause 'I' to increase on each iteration of OpenMP for loop}}
#pragma omp for simd
for (IT I = begin; I <= end; I += ST) {
++I;
}
#pragma omp parallel
#pragma omp for simd
for (IT I = begin; I < end; ++I) {
++I;
}
}
static IT step() {
return IT(ST);
}
};
template <typename IT, int ST = 0>
int dotest_gt(IT begin, IT end) {
#pragma omp parallel
// expected-note@+3 2 {{loop step is expected to be negative due to this condition}}
// expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}
#pragma omp for simd
for (IT I = begin; I >= end; I = I + ST) {
++I;
}
#pragma omp parallel
// expected-note@+3 2 {{loop step is expected to be negative due to this condition}}
// expected-error@+2 2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}
#pragma omp for simd
for (IT I = begin; I >= end; I += ST) {
++I;
}
#pragma omp parallel
// expected-note@+3 {{loop step is expected to be negative due to this condition}}
// expected-error@+2 {{increment expression must cause 'I' to decrease on each iteration of OpenMP for loop}}
#pragma omp for simd
for (IT I = begin; I >= end; ++I) {
++I;
}
#pragma omp parallel
#pragma omp for simd
for (IT I = begin; I < end; I += TC<int, ST>::step()) {
++I;
}
}
void test_with_template() {
GoodIter begin, end;
TC<GoodIter, 100> t1;
TC<GoodIter, -100> t2;
t1.dotest_lt(begin, end);
t2.dotest_lt(begin, end); // expected-note {{in instantiation of member function 'TC<GoodIter, -100>::dotest_lt' requested here}}
dotest_gt(begin, end); // expected-note {{in instantiation of function template specialization 'dotest_gt<GoodIter, 0>' requested here}}
dotest_gt<unsigned, 10>(0, 100); // expected-note {{in instantiation of function template specialization 'dotest_gt<unsigned int, 10>' requested here}}
}
void test_loop_break() {
const int N = 100;
float a[N], b[N], c[N];
#pragma omp parallel
#pragma omp for simd
for (int i = 0; i < 10; i++) {
c[i] = a[i] + b[i];
for (int j = 0; j < 10; ++j) {
if (a[i] > b[j])
break; // OK in nested loop
}
switch (i) {
case 1:
b[i]++;
break;
default:
break;
}
if (c[i] > 10)
break; // expected-error {{'break' statement cannot be used in OpenMP for loop}}
if (c[i] > 11)
break; // expected-error {{'break' statement cannot be used in OpenMP for loop}}
}
#pragma omp parallel
#pragma omp for simd
for (int i = 0; i < 10; i++) {
for (int j = 0; j < 10; j++) {
c[i] = a[i] + b[i];
if (c[i] > 10) {
if (c[i] < 20) {
break; // OK
}
}
}
}
}
void test_loop_eh() {
const int N = 100;
float a[N], b[N], c[N];
#pragma omp parallel
#pragma omp for simd
for (int i = 0; i < 10; i++) {
c[i] = a[i] + b[i];
try { // expected-error {{'try' statement cannot be used in OpenMP simd region}}
for (int j = 0; j < 10; ++j) {
if (a[i] > b[j])
throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}
}
throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}
}
catch (float f) {
if (f > 0.1)
throw a[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}
return; // expected-error {{cannot return from OpenMP region}}
}
switch (i) {
case 1:
b[i]++;
break;
default:
break;
}
for (int j = 0; j < 10; j++) {
if (c[i] > 10)
throw c[i]; // expected-error {{'throw' statement cannot be used in OpenMP simd region}}
}
}
if (c[9] > 10)
throw c[9]; // OK
#pragma omp parallel
#pragma omp for simd
for (int i = 0; i < 10; ++i) {
struct S {
void g() { throw 0; }
};
}
}
void test_loop_firstprivate_lastprivate() {
S s(4);
#pragma omp parallel
#pragma omp for simd lastprivate(s) firstprivate(s)
for (int i = 0; i < 16; ++i)
;
}
void test_ordered() {
#pragma omp parallel
#pragma omp for simd ordered ordered // expected-error {{directive '#pragma omp for simd' cannot contain more than one 'ordered' clause}}
for (int i = 0; i < 16; ++i)
;
#pragma omp parallel
#pragma omp for simd ordered
for (int i = 0; i < 16; ++i)
;
#pragma omp parallel
// expected-error@+1 {{'ordered' clause with a parameter can not be specified in '#pragma omp for simd' directive}}
#pragma omp for simd ordered(1)
for (int i = 0; i < 16; ++i)
;
}
void test_nowait() {
#pragma omp parallel
#pragma omp for simd nowait nowait // expected-error {{directive '#pragma omp for simd' cannot contain more than one 'nowait' clause}}
for (int i = 0; i < 16; ++i)
;
}
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