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ca98c15f23
The number of iterations calculation was failing in some cases with more than two collpased loops. Now the LoopIterationSpace selected matches InitDependOnLC and CondDependOnLC. Differential Revision: https://reviews.llvm.org/D95834
845 lines
30 KiB
C++
845 lines
30 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -fopenmp -fopenmp-version=45 -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp4 %s -Wuninitialized
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// RUN: %clang_cc1 -fsyntax-only -fopenmp -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp5 %s -Wuninitialized
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// RUN: %clang_cc1 -fsyntax-only -fopenmp-simd -fopenmp-version=45 -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp4 %s -Wuninitialized
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// RUN: %clang_cc1 -fsyntax-only -fopenmp-simd -x c++ -std=c++11 -fexceptions -fcxx-exceptions -verify=expected,omp5 %s -Wuninitialized
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class S {
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int a;
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S() : a(0) {}
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public:
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S(int v) : a(v) {}
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S(const S &s) : a(s.a) {}
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};
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static int sii;
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// expected-note@+1 {{defined as threadprivate or thread local}}
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#pragma omp threadprivate(sii)
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static int globalii;
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// Currently, we cannot use "0" for global register variables.
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// register int reg0 __asm__("0");
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int reg0;
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int test_iteration_spaces() {
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const int N = 100;
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float a[N], b[N], c[N];
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int ii, jj, kk;
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float fii;
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double dii;
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register int reg; // expected-warning {{'register' storage class specifier is deprecated}}
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#pragma omp parallel
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#pragma omp for
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for (int i = 0; i < 10; i += 1) {
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c[i] = a[i] + b[i];
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}
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#pragma omp parallel
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#pragma omp for
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for (char i = 0; i < 10; i++) {
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c[i] = a[i] + b[i];
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}
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#pragma omp parallel
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#pragma omp for
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for (char i = 0; i < 10; i += '\1') {
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c[i] = a[i] + b[i];
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}
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#pragma omp parallel
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#pragma omp for
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for (long long i = 0; i < 10; i++) {
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c[i] = a[i] + b[i];
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}
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#pragma omp parallel
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// expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'double'}}
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#pragma omp for
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for (long long i = 0; i < 10; i += 1.5) {
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c[i] = a[i] + b[i];
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}
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#pragma omp parallel
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#pragma omp for
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for (long long i = 0; i < 'z'; i += 1u) {
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c[i] = a[i] + b[i];
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}
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#pragma omp parallel
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// expected-error@+2 {{variable must be of integer or random access iterator type}}
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#pragma omp for
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for (float fi = 0; fi < 10.0; fi++) {
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c[(int)fi] = a[(int)fi] + b[(int)fi];
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}
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#pragma omp parallel
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// expected-error@+2 {{variable must be of integer or random access iterator type}}
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#pragma omp for
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for (double fi = 0; fi < 10.0; fi++) {
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c[(int)fi] = a[(int)fi] + b[(int)fi];
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}
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#pragma omp parallel
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// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
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#pragma omp for
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for (int &ref = ii; ref < 10; ref++) {
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}
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#pragma omp parallel
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// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
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#pragma omp for
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for (int i; i < 10; i++)
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c[i] = a[i];
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#pragma omp parallel
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// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
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#pragma omp for
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for (int i = 0, j = 0; i < 10; ++i)
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c[i] = a[i];
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#pragma omp parallel
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// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
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#pragma omp for
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for (; ii < 10; ++ii)
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-warning@+3 {{expression result unused}}
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// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
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#pragma omp for
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for (ii + 1; ii < 10; ++ii)
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-error@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
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#pragma omp for
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for (c[ii] = 0; ii < 10; ++ii)
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c[ii] = a[ii];
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#pragma omp parallel
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// Ok to skip parenthesises.
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#pragma omp for
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for (((ii)) = 0; ii < 10; ++ii)
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c[ii] = a[ii];
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#pragma omp parallel
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// 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'}}
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#pragma omp for
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for (int i = 0; i; i++)
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c[i] = a[i];
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#pragma omp parallel
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// 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'}}
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// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'i'}}
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#pragma omp for
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for (int i = 0; jj < kk; ii++)
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c[i] = a[i];
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#pragma omp parallel
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// 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'}}
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#pragma omp for
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for (int i = 0; !!i; i++)
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c[i] = a[i];
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#pragma omp parallel
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// omp4-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', or '>=') of loop variable 'i'}}
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#pragma omp for
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for (int i = 0; i != 1; i++)
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c[i] = a[i];
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#pragma omp parallel
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// 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'}}
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#pragma omp for
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for (int i = 0;; i++)
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c[i] = a[i];
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#pragma omp parallel
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// Ok.
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#pragma omp for
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for (int i = 11; i > 10; i--)
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c[i] = a[i];
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#pragma omp parallel
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// Ok.
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#pragma omp for
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for (int i = 0; i < 10; ++i)
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c[i] = a[i];
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#pragma omp parallel
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// Ok.
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#pragma omp for
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for (ii = 0; ii < 10; ++ii)
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
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#pragma omp for
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for (ii = 0; ii < 10; ++jj)
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c[ii] = a[jj];
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#pragma omp parallel
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// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
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#pragma omp for
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for (ii = 0; ii < 10; ++++ii)
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c[ii] = a[ii];
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#pragma omp parallel
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// Ok but undefined behavior (in general, cannot check that incr
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// is really loop-invariant).
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#pragma omp for
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for (ii = 0; ii < 10; ii = ii + ii)
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'float'}}
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#pragma omp for
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for (ii = 0; ii < 10; ii = ii + 1.0f)
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c[ii] = a[ii];
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#pragma omp parallel
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// Ok - step was converted to integer type.
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#pragma omp for
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for (ii = 0; ii < 10; ii = ii + (int)1.1f)
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
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#pragma omp for
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for (ii = 0; ii < 10; jj = ii + 2)
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-warning@+3 {{relational comparison result unused}}
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// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
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#pragma omp for
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for (ii = 0; ii<10; jj> kk + 2)
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
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#pragma omp for
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for (ii = 0; ii < 10;)
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-warning@+3 {{expression result unused}}
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// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
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#pragma omp for
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for (ii = 0; ii < 10; !ii)
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
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#pragma omp for
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for (ii = 0; ii < 10; ii ? ++ii : ++jj)
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-error@+2 {{increment clause of OpenMP for loop must perform simple addition or subtraction on loop variable 'ii'}}
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#pragma omp for
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for (ii = 0; ii < 10; ii = ii < 10)
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-note@+3 {{loop step is expected to be positive due to this condition}}
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// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
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#pragma omp for
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for (ii = 0; ii < 10; ii = ii + 0)
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-note@+3 {{loop step is expected to be positive due to this condition}}
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// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
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#pragma omp for
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for (ii = 0; ii < 10; ii = ii + (int)(0.8 - 0.45))
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-note@+3 {{loop step is expected to be positive due to this condition}}
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// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
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#pragma omp for
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for (ii = 0; (ii) < 10; ii -= 25)
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-note@+3 {{loop step is expected to be positive due to this condition}}
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// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
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#pragma omp for
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for (ii = 0; (ii < 10); ii -= 0)
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-note@+3 {{loop step is expected to be negative due to this condition}}
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// expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}}
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#pragma omp for
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for (ii = 0; ii > 10; (ii += 0))
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-note@+3 {{loop step is expected to be positive due to this condition}}
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// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
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#pragma omp for
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for (ii = 0; ii < 10; (ii) = (1 - 1) + (ii))
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-note@+3 {{loop step is expected to be negative due to this condition}}
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// expected-error@+2 {{increment expression must cause 'ii' to decrease on each iteration of OpenMP for loop}}
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#pragma omp for
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for ((ii = 0); ii > 10; (ii -= 0))
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-note@+3 {{loop step is expected to be positive due to this condition}}
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// expected-error@+2 {{increment expression must cause 'ii' to increase on each iteration of OpenMP for loop}}
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#pragma omp for
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for (ii = 0; (ii < 10); (ii -= 0))
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-error@+3 {{the loop initializer expression depends on the current loop control variable}}
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// expected-error@+2 2 {{the loop condition expression depends on the current loop control variable}}
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#pragma omp for
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for (ii = ii * 10 + 25; ii < ii / ii - 23; ii += 1)
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c[ii] = a[ii];
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// expected-error@+3 {{expected loop invariant expression or '<invariant1> * ii + <invariant2>' kind of expression}}
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#pragma omp for collapse(2)
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for (ii = 10 + 25; ii < 1000; ii += 1)
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for (kk = ii * 10 + 25; kk < ii / ii - 23; kk += 1)
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;
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// expected-error@+4 {{expected loop invariant expression or '<invariant1> * ii + <invariant2>' kind of expression}}
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#pragma omp for collapse(3)
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for (ii = 10 + 25; ii < 1000; ii += 1)
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for (jj = 10 + 25; jj < 1000; jj += 1)
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for (kk = ii * 10 + 25; kk < jj - 23; kk += 1)
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;
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#pragma omp parallel
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// expected-note@+2 {{defined as firstprivate}}
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// expected-error@+2 {{loop iteration variable in the associated loop of 'omp for' directive may not be firstprivate, predetermined as private}}
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#pragma omp for firstprivate(ii)
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for (ii = 0; ii < 10; ii++)
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c[ii] = a[ii];
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#pragma omp parallel
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// expected-note@+2 {{defined as linear}}
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// expected-error@+2 {{loop iteration variable in the associated loop of 'omp for' directive may not be linear, predetermined as private}}
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#pragma omp for linear(ii)
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for (ii = 0; ii < 10; ii++)
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c[ii] = a[ii];
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#pragma omp parallel
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#pragma omp for private(ii)
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for (ii = 0; ii < 10; ii++)
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c[ii] = a[ii];
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#pragma omp parallel
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#pragma omp for lastprivate(ii)
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for (ii = 0; ii < 10; ii++)
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c[ii] = a[ii];
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#pragma omp parallel
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{
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// expected-error@+2 {{loop iteration variable in the associated loop of 'omp for' directive may not be threadprivate or thread local, predetermined as private}}
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#pragma omp for
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for (sii = 0; sii < 10; sii += 1)
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c[sii] = a[sii];
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}
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#pragma omp parallel
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{
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#pragma omp for
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for (reg0 = 0; reg0 < 10; reg0 += 1)
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c[reg0] = a[reg0];
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}
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#pragma omp parallel
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{
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#pragma omp for
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for (reg = 0; reg < 10; reg += 1)
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c[reg] = a[reg];
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}
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#pragma omp parallel
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{
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#pragma omp for
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for (globalii = 0; globalii < 10; globalii += 1)
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c[globalii] = a[globalii];
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}
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#pragma omp parallel
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{
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#pragma omp for collapse(2)
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for (ii = 0; ii < 10; ii += 1)
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for (globalii = 0; globalii < 10; globalii += 1)
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c[globalii] += a[globalii] + ii;
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}
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#pragma omp parallel
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// omp4-error@+2 {{statement after '#pragma omp for' must be a for loop}}
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#pragma omp for
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for (auto &item : a) {
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item = item + 1;
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}
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#pragma omp parallel
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// expected-note@+3 {{loop step is expected to be positive due to this condition}}
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// expected-error@+2 {{increment expression must cause 'i' to increase on each iteration of OpenMP for loop}}
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#pragma omp for
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for (unsigned i = 9; i < 10; i--) {
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c[i] = a[i] + b[i];
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}
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int(*lb)[4] = nullptr;
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#pragma omp parallel
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#pragma omp for
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for (int(*p)[4] = lb; p < lb + 8; ++p) {
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}
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#pragma omp parallel
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// expected-warning@+2 {{initialization clause of OpenMP for loop is not in canonical form ('var = init' or 'T var = init')}}
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#pragma omp for
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for (int a{0}; a < 10; ++a) {
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}
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return 0;
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}
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// Iterators allowed in openmp for-loops.
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namespace std {
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struct random_access_iterator_tag {};
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template <class Iter>
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struct iterator_traits {
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typedef typename Iter::difference_type difference_type;
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typedef typename Iter::iterator_category iterator_category;
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};
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template <class Iter>
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typename iterator_traits<Iter>::difference_type
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distance(Iter first, Iter last) { return first - last; }
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}
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class Iter0 {
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public:
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|
Iter0() {}
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Iter0(const Iter0 &) {}
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Iter0 operator++() { return *this; }
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Iter0 operator--() { return *this; }
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bool operator<(Iter0 a) { return true; }
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};
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// expected-note@+2 {{candidate function not viable: no known conversion from 'GoodIter' to 'Iter0' for 1st argument}}
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// expected-note@+1 2 {{candidate function not viable: no known conversion from 'Iter1' to 'Iter0' for 1st argument}}
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int operator-(Iter0 a, Iter0 b) { return 0; }
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class Iter1 {
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public:
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Iter1(float f = 0.0f, double d = 0.0) {}
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Iter1(const Iter1 &) {}
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Iter1 operator++() { return *this; }
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Iter1 operator--() { return *this; }
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bool operator<(Iter1 a) { return true; }
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bool operator>=(Iter1 a) { return false; }
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};
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class GoodIter {
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public:
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GoodIter() {}
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|
GoodIter(const GoodIter &) {}
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|
GoodIter(int fst, int snd) {}
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GoodIter &operator=(const GoodIter &that) { return *this; }
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GoodIter &operator=(const Iter0 &that) { return *this; }
|
|
GoodIter &operator+=(int x) { 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;
|
|
};
|
|
class GoodIter1 {
|
|
public:
|
|
GoodIter1() {}
|
|
GoodIter1(const GoodIter1 &) {}
|
|
GoodIter1 &operator++(int) { return *this; }
|
|
GoodIter1 &operator=(const GoodIter1 &that) { return *this; }
|
|
GoodIter1 &operator+=(int x) { return *this; }
|
|
friend long operator-(const GoodIter1 &, const GoodIter1 &);
|
|
GoodIter1 &operator-(int) { return *this; }
|
|
bool operator<(GoodIter1 a) { return true; }
|
|
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
|
|
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
|
|
for (GoodIter &I = begin; I < end; ++I)
|
|
++I;
|
|
#pragma omp parallel
|
|
#pragma omp for
|
|
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
|
|
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
|
|
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
|
|
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
|
|
for (GoodIter I(1, 2); I < end; ++I)
|
|
++I;
|
|
#pragma omp parallel
|
|
#pragma omp for
|
|
for (begin = GoodIter(0); begin < end; ++begin)
|
|
++begin;
|
|
// expected-error@+4 {{invalid operands to binary expression ('GoodIter' and 'const Iter0')}}
|
|
// expected-error@+3 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}
|
|
#pragma omp parallel
|
|
#pragma omp for
|
|
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
|
|
for (++begin; begin < end; ++begin)
|
|
++begin;
|
|
#pragma omp parallel
|
|
#pragma omp for
|
|
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
|
|
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
|
|
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
|
|
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
|
|
for (GoodIter I = begin; I >= end; I = I + 1)
|
|
++I;
|
|
#pragma omp parallel
|
|
#pragma omp for
|
|
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
|
|
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
|
|
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
|
|
for (GoodIter I = begin; I >= end; I = 2 - I)
|
|
++I;
|
|
// In the following example, we cannot update the loop variable using '+='
|
|
// expected-error@+3 {{invalid operands to binary expression ('Iter0' and 'int')}}
|
|
#pragma omp parallel
|
|
#pragma omp for
|
|
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
|
|
for (Iter0 I; I < end0; ++I)
|
|
++I;
|
|
Iter1 begin1, end1;
|
|
// expected-error@+4 {{invalid operands to binary expression ('Iter1' and 'Iter1')}}
|
|
// expected-error@+3 {{could not calculate number of iterations calling 'operator-' with upper and lower loop bounds}}
|
|
#pragma omp parallel
|
|
#pragma omp for
|
|
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
|
|
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
|
|
for (Iter1 I; I < end1; ++I) {
|
|
}
|
|
GoodIter1 I1, E1;
|
|
// expected-error@+4 {{expected an integer or a pointer type of the outer loop counter 'I' for non-rectangular nests}}
|
|
// expected-error@+4 {{expected an integer or a pointer type of the outer loop counter 'I' for non-rectangular nests}}
|
|
#pragma omp for collapse(3)
|
|
for (GoodIter1 I = I1; I < E1; I++) // expected-note 2 {{'I' declared here}}
|
|
for (int i = (I - I1) * 10 + 25; i < 23; i += 1)
|
|
for (int j = 10 + 25; j < 23 + (I - E1); j += 1)
|
|
;
|
|
|
|
#pragma omp for
|
|
for (GoodIter1 I = I1; I < E1; I++)
|
|
;
|
|
return 0;
|
|
}
|
|
|
|
template <typename IT, int ST>
|
|
class TC {
|
|
int ii, iii, kk;
|
|
public:
|
|
enum { myconstant = 42 };
|
|
int ub();
|
|
int dotest_lt(IT begin, IT end) {
|
|
#pragma omp parallel
|
|
// expected-error@+3 3 {{the loop initializer expression depends on the current loop control variable}}
|
|
// expected-error@+2 6 {{the loop condition expression depends on the current loop control variable}}
|
|
#pragma omp for
|
|
for (ii = ii * 10 + 25; ii < ii / ii - 23; ii += 1)
|
|
;
|
|
|
|
// Check that member function calls and enum constants in the condition is
|
|
// handled.
|
|
#pragma omp for
|
|
for (ii = 0; ii < ub() + this->myconstant; ii += 1) // expected-no-error
|
|
;
|
|
|
|
#pragma omp parallel
|
|
// expected-error@+4 2 {{expected loop invariant expression or '<invariant1> * ii + <invariant2>' kind of expression}}
|
|
// expected-error@+3 {{expected loop invariant expression or '<invariant1> * TC::ii + <invariant2>' kind of expression}}
|
|
#pragma omp for collapse(2)
|
|
for (ii = 10 + 25; ii < 1000; ii += 1)
|
|
for (iii = ii * 10 + 25; iii < ii / ii - 23; iii += 1)
|
|
;
|
|
|
|
#pragma omp parallel
|
|
// expected-error@+6 {{expected loop invariant expression or '<invariant1> * TC::ii + <invariant2>' kind of expression}}
|
|
// expected-error@+6 {{expected loop invariant expression or '<invariant1> * TC::ii + <invariant2>' kind of expression}}
|
|
// expected-error@+4 2 {{expected loop invariant expression or '<invariant1> * ii + <invariant2>' kind of expression}}
|
|
// expected-error@+4 2 {{expected loop invariant expression or '<invariant1> * ii + <invariant2>' kind of expression}}
|
|
#pragma omp for collapse(3)
|
|
for (ii = 10 + 25; ii < 1000; ii += 1)
|
|
for (iii = ii * 10 + 25; iii < ii / ii - 23; iii += 1)
|
|
for (kk = ii * 10 + 25; kk < iii - 23; kk += 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
|
|
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
|
|
for (IT I = begin; I <= end; I += ST) {
|
|
++I;
|
|
}
|
|
#pragma omp parallel
|
|
#pragma omp for
|
|
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
|
|
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
|
|
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
|
|
for (IT I = begin; I >= end; ++I) {
|
|
++I;
|
|
}
|
|
|
|
#pragma omp parallel
|
|
#pragma omp for
|
|
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); // expected-note {{in instantiation of member function 'TC<GoodIter, 100>::dotest_lt' requested here}}
|
|
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
|
|
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
|
|
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
|
|
for (int i = 0; i < 10; i++) {
|
|
c[i] = a[i] + b[i];
|
|
try {
|
|
for (int j = 0; j < 10; ++j) {
|
|
if (a[i] > b[j])
|
|
throw a[i];
|
|
}
|
|
throw a[i];
|
|
} catch (float f) {
|
|
if (f > 0.1)
|
|
throw a[i];
|
|
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];
|
|
}
|
|
}
|
|
if (c[9] > 10)
|
|
throw c[9]; // OK
|
|
|
|
#pragma omp parallel
|
|
#pragma omp for
|
|
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 lastprivate(s) firstprivate(s)
|
|
for (int i = 0; i < 16; ++i)
|
|
;
|
|
}
|
|
|
|
void test_ordered() {
|
|
#pragma omp parallel
|
|
#pragma omp for ordered ordered // expected-error {{directive '#pragma omp for' cannot contain more than one 'ordered' clause}}
|
|
for (int i = 0; i < 16; ++i)
|
|
;
|
|
}
|
|
|
|
void test_nowait() {
|
|
#pragma omp parallel
|
|
#pragma omp for nowait nowait // expected-error {{directive '#pragma omp for' cannot contain more than one 'nowait' clause}}
|
|
for (int i = 0; i < 16; ++i)
|
|
;
|
|
}
|
|
|
|
void test_static_data_member() {
|
|
#pragma omp parallel
|
|
#pragma omp for
|
|
for (int i = 0; i < 16; ++i) {
|
|
class X {
|
|
static int x; // expected-error {{static data member 'x' not allowed in local class 'X'}}
|
|
};
|
|
}
|
|
}
|