5c93a94f5a
Add the interchange directive which will be introduced in the upcoming OpenMP 6.0 specification. A preview has been published in [Technical Report 12](https://www.openmp.org/wp-content/uploads/openmp-TR12.pdf).
78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -std=c++17 -fopenmp -fopenmp-version=60 -fsyntax-only -Wuninitialized -verify %s
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void func() {
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// expected-warning@+1 {{extra tokens at the end of '#pragma omp interchange' are ignored}}
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#pragma omp interchange foo
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for (int i = 0; i < 7; ++i)
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for (int j = 0; j < 13; ++j)
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;
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// expected-error@+1 {{unexpected OpenMP clause 'collapse' in directive '#pragma omp interchange'}}
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#pragma omp interchange collapse(2)
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for (int i = 0; i < 7; ++i)
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for (int j = 0; j < 13; ++j)
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;
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{
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// expected-error@+2 {{expected statement}}
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#pragma omp interchange
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}
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// expected-error@+2 {{statement after '#pragma omp interchange' must be a for loop}}
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#pragma omp interchange
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int b = 0;
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// expected-error@+3 {{statement after '#pragma omp interchange' must be a for loop}}
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#pragma omp interchange
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for (int i = 0; i < 7; ++i)
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;
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// expected-error@+2 {{statement after '#pragma omp interchange' must be a for loop}}
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#pragma omp interchange
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for (int i = 0; i < 7; ++i) {
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int k = 3;
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for (int j = 0; j < 7; ++j)
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;
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}
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// expected-error@+3 {{expected loop invariant expression}}
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#pragma omp interchange
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for (int i = 0; i < 7; ++i)
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for (int j = i; j < 7; ++j)
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;
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// expected-error@+3 {{expected loop invariant expression}}
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#pragma omp interchange
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for (int i = 0; i < 7; ++i)
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for (int j = 0; j < i; ++j)
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;
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// expected-error@+3 {{expected loop invariant expression}}
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#pragma omp interchange
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for (int i = 0; i < 7; ++i)
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for (int j = 0; j < i; ++j)
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;
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// expected-error@+6 {{expected 3 for loops after '#pragma omp for', but found only 2}}
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// expected-note@+1 {{as specified in 'collapse' clause}}
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#pragma omp for collapse(3)
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#pragma omp interchange
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for (int i = 0; i < 7; ++i)
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for (int j = 0; j < 13; ++j)
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;
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// expected-error@+2 {{statement after '#pragma omp interchange' must be a for loop}}
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#pragma omp interchange
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#pragma omp for
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for (int i = 0; i < 7; ++i)
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;
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// expected-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'j'}}
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#pragma omp interchange
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for (int i = 0; i < 7; ++i)
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for (int j = 0; j/3<7; ++j)
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;
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}
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