diff options
Diffstat (limited to 'clang/test/OpenMP/simd_loop_messages.cpp')
| -rw-r--r-- | clang/test/OpenMP/simd_loop_messages.cpp | 574 |
1 files changed, 574 insertions, 0 deletions
diff --git a/clang/test/OpenMP/simd_loop_messages.cpp b/clang/test/OpenMP/simd_loop_messages.cpp new file mode 100644 index 00000000000..c960e0651a0 --- /dev/null +++ b/clang/test/OpenMP/simd_loop_messages.cpp @@ -0,0 +1,574 @@ +// RUN: %clang_cc1 -fsyntax-only -fopenmp=libiomp5 -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify %s + +static int sii; +#pragma omp threadprivate(sii) + +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 simd + for (int i = 0; i < 10; i+=1) { + c[i] = a[i] + b[i]; + } + #pragma omp simd + for (char i = 0; i < 10; i++) { + c[i] = a[i] + b[i]; + } + #pragma omp simd + for (char i = 0; i < 10; i+='\1') { + c[i] = a[i] + b[i]; + } + #pragma omp simd + for (long long i = 0; i < 10; i++) { + c[i] = a[i] + b[i]; + } + // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}} + #pragma omp simd + for (long long i = 0; i < 10; i+=1.5) { + c[i] = a[i] + b[i]; + } + #pragma omp simd + for (long long i = 0; i < 'z'; i+=1u) { + c[i] = a[i] + b[i]; + } + // expected-error@+2 {{variable must be of integer or random access iterator type}} + #pragma omp simd + for (float fi = 0; fi < 10.0; fi++) { + c[(int)fi] = a[(int)fi] + b[(int)fi]; + } + // expected-error@+2 {{variable must be of integer or random access iterator type}} + #pragma omp simd + for (double fi = 0; fi < 10.0; fi++) { + c[(int)fi] = a[(int)fi] + b[(int)fi]; + } + // expected-error@+2 {{variable must be of integer or random access iterator type}} + #pragma omp simd + for (int &ref = ii; ref < 10; ref++) { + } + // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} + #pragma omp simd + for (int i; i < 10; i++) + c[i] = a[i]; + + // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} + #pragma omp simd + for (int i = 0, j = 0; i < 10; ++i) + c[i] = a[i]; + + // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} + #pragma omp simd + for (;ii < 10; ++ii) + c[ii] = a[ii]; + + // expected-warning@+3 {{expression result unused}} + // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} + #pragma omp simd + for (ii + 1;ii < 10; ++ii) + c[ii] = a[ii]; + + // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} + #pragma omp simd + for (c[ii] = 0;ii < 10; ++ii) + c[ii] = a[ii]; + + // Ok to skip parenthesises. + #pragma omp simd + for (((ii)) = 0;ii < 10; ++ii) + c[ii] = a[ii]; + + // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} + #pragma omp simd + for (int i = 0; i; i++) + c[i] = a[i]; + + // expected-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 simd + for (int i = 0; jj < kk; ii++) + c[i] = a[i]; + + // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} + #pragma omp simd + for (int i = 0; !!i; i++) + c[i] = a[i]; + + // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} + #pragma omp simd + for (int i = 0; i != 1; i++) + c[i] = a[i]; + + // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}} + #pragma omp simd + for (int i = 0; ; i++) + c[i] = a[i]; + + // Ok. + #pragma omp simd + for (int i = 11; i > 10; i--) + c[i] = a[i]; + + // Ok. + #pragma omp simd + for (int i = 0; i < 10; ++i) + c[i] = a[i]; + + // Ok. + #pragma omp simd + for (ii = 0; ii < 10; ++ii) + c[ii] = a[ii]; + + // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} + #pragma omp simd + for (ii = 0; ii < 10; ++jj) + c[ii] = a[jj]; + + // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} + #pragma omp simd + for (ii = 0; ii < 10; ++ ++ ii) + c[ii] = a[ii]; + + // Ok but undefined behavior (in general, cannot check that incr + // is really loop-invariant). + #pragma omp simd + for (ii = 0; ii < 10; ii = ii + ii) + c[ii] = a[ii]; + + // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}} + #pragma omp simd + for (ii = 0; ii < 10; ii = ii + 1.0f) + c[ii] = a[ii]; + + // Ok - step was converted to integer type. + #pragma omp simd + for (ii = 0; ii < 10; ii = ii + (int)1.1f) + c[ii] = a[ii]; + + // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} + #pragma omp simd + for (ii = 0; ii < 10; jj = ii + 2) + c[ii] = a[ii]; + + // 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 simd + for (ii = 0; ii < 10; jj > kk + 2) + c[ii] = a[ii]; + + // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} + #pragma omp simd + for (ii = 0; ii < 10;) + c[ii] = a[ii]; + + // 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 simd + for (ii = 0; ii < 10; !ii) + c[ii] = a[ii]; + + // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} + #pragma omp simd + for (ii = 0; ii < 10; ii ? ++ii : ++jj) + c[ii] = a[ii]; + + // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}} + #pragma omp simd + for (ii = 0; ii < 10; ii = ii < 10) + c[ii] = a[ii]; + + // 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 simd + for (ii = 0; ii < 10; ii = ii + 0) + c[ii] = a[ii]; + + // 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 simd + for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45)) + c[ii] = a[ii]; + + // 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 simd + for (ii = 0; (ii) < 10; ii-=25) + c[ii] = a[ii]; + + // 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 simd + for (ii = 0; (ii < 10); ii-=0) + c[ii] = a[ii]; + + // 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 simd + for (ii = 0; ii > 10; (ii+=0)) + c[ii] = a[ii]; + + // 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 simd + for (ii = 0; ii < 10; (ii) = (1-1)+(ii)) + c[ii] = a[ii]; + + // 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 simd + for ((ii = 0); ii > 10; (ii-=0)) + c[ii] = a[ii]; + + // 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 simd + for (ii = 0; (ii < 10); (ii-=0)) + c[ii] = a[ii]; + + // expected-note@+2 {{defined as private}} + // expected-error@+2 {{loop iteration variable may not be private}} + #pragma omp simd private(ii) + for (ii = 0; ii < 10; ii++) + c[ii] = a[ii]; + + // expected-error@+3 {{unexpected OpenMP clause 'shared' in directive '#pragma omp simd'}} + // expected-note@+2 {{defined as shared}} + // expected-error@+2 {{loop iteration variable may not be shared}} + #pragma omp simd shared(ii) + for (ii = 0; ii < 10; ii++) + c[ii] = a[ii]; + + #pragma omp simd linear(ii) + for (ii = 0; ii < 10; ii++) + c[ii] = a[ii]; + + // TODO: Add test for lastprivate. + + #pragma omp parallel + { + #pragma omp simd + for (sii = 0; sii < 10; sii+=1) + c[sii] = a[sii]; + } + + // expected-error@+2 {{statement after '#pragma omp simd' must be a for loop}} + #pragma omp simd + for (auto &item : a) { + item = item + 1; + } + + // 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 simd + for (unsigned i = 9; i < 10; i--) { + c[i] = a[i] + b[i]; + } + + int (*lb)[4] = nullptr; + #pragma omp simd + for (int (*p)[4] = lb; p < lb + 8; ++p) { + } + + // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} + #pragma omp 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; } +}; +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; +}; +int operator -(GoodIter a, GoodIter b) { return 0; } +GoodIter operator -(GoodIter a) { return a; } +GoodIter operator -(GoodIter a, int v) { return GoodIter(); } +GoodIter operator +(GoodIter a, int v) { return GoodIter(); } +GoodIter operator -(int v, GoodIter a) { return GoodIter(); } +GoodIter operator +(int v, GoodIter a) { return GoodIter(); } + +int test_with_random_access_iterator() { + GoodIter begin, end; + Iter0 begin0, end0; + #pragma omp simd + for (GoodIter I = begin; I < end; ++I) + ++I; + // expected-error@+2 {{variable must be of integer or random access iterator type}} + #pragma omp simd + for (GoodIter &I = begin; I < end; ++I) + ++I; + #pragma omp simd + for (GoodIter I = begin; I >= end; --I) + ++I; + // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} + #pragma omp simd + for (GoodIter I(begin); I < end; ++I) + ++I; + // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} + #pragma omp simd + for (GoodIter I(nullptr); I < end; ++I) + ++I; + // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} + #pragma omp simd + for (GoodIter I(0); I < end; ++I) + ++I; + // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} + #pragma omp simd + for (GoodIter I(1,2); I < end; ++I) + ++I; + #pragma omp simd + for (begin = GoodIter(0); begin < end; ++begin) + ++begin; + #pragma omp simd + for (begin = begin0; begin < end; ++begin) + ++begin; + // expected-error@+2 {{initialization clause of OpenMP for loop must be of the form 'var = init' or 'T var = init'}} + #pragma omp simd + for (++begin; begin < end; ++begin) + ++begin; + #pragma omp simd + for (begin = end; begin < end; ++begin) + ++begin; + // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} + #pragma omp simd + for (GoodIter I = begin; I - I; ++I) + ++I; + // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} + #pragma omp simd + for (GoodIter I = begin; begin < end; ++I) + ++I; + // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'I'}} + #pragma omp simd + for (GoodIter I = begin; !I; ++I) + ++I; + // 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 simd + for (GoodIter I = begin; I >= end; I = I + 1) + ++I; + #pragma omp simd + for (GoodIter I = begin; I >= end; I = I - 1) + ++I; + // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} + #pragma omp simd + for (GoodIter I = begin; I >= end; I = -I) + ++I; + // 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 simd + for (GoodIter I = begin; I >= end; I = 2 + I) + ++I; + // expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'I'}} + #pragma omp simd + for (GoodIter I = begin; I >= end; I = 2 - I) + ++I; + #pragma omp simd + for (Iter0 I = begin0; I < end0; ++I) + ++I; + // Initializer is constructor without params. + // expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}} + #pragma omp simd + for (Iter0 I; I < end0; ++I) + ++I; + Iter1 begin1, end1; + #pragma omp simd + for (Iter1 I = begin1; I < end1; ++I) + ++I; + // 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 simd + for (Iter1 I = begin1; I >= end1; ++I) + ++I; + // 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 simd + for (Iter1 I; I < end1; ++I) { + } + return 0; +} + +template <typename IT, int ST> class TC { + public: + int dotest_lt(IT begin, IT end) { + // 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 simd + for (IT I = begin; I < end; I = I + ST) { + ++I; + } + // 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 simd + for (IT I = begin; I <= end; I += ST) { + ++I; + } + #pragma omp 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) { + // 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 simd + for (IT I = begin; I >= end; I = I + ST) { + ++I; + } + // 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 simd + for (IT I = begin; I >= end; I += ST) { + ++I; + } + + // 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 simd + for (IT I = begin; I >= end; ++I) { + ++I; + } + + #pragma omp 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 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 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 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 simd + for (int i = 0; i < 10; ++i) { + struct S { + void g() { throw 0; } + }; + } +} + |
