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// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -std=c++17 -fopenmp -fopenmp-version=60 -fsyntax-only -Wuninitialized -verify %s
void func() {
// expected-warning@+1 {{extra tokens at the end of '#pragma omp interchange' are ignored}}
#pragma omp interchange foo
for (int i = 0; i < 7; ++i)
for (int j = 0; j < 13; ++j)
;
// expected-error@+1 {{unexpected OpenMP clause 'collapse' in directive '#pragma omp interchange'}}
#pragma omp interchange collapse(2)
for (int i = 0; i < 7; ++i)
for (int j = 0; j < 13; ++j)
;
{
// expected-error@+2 {{expected statement}}
#pragma omp interchange
}
// expected-error@+2 {{statement after '#pragma omp interchange' must be a for loop}}
#pragma omp interchange
int b = 0;
// expected-error@+3 {{statement after '#pragma omp interchange' must be a for loop}}
#pragma omp interchange
for (int i = 0; i < 7; ++i)
;
// expected-error@+2 {{statement after '#pragma omp interchange' must be a for loop}}
#pragma omp interchange
for (int i = 0; i < 7; ++i) {
int k = 3;
for (int j = 0; j < 7; ++j)
;
}
// expected-error@+3 {{expected loop invariant expression}}
#pragma omp interchange
for (int i = 0; i < 7; ++i)
for (int j = i; j < 7; ++j)
;
// expected-error@+3 {{expected loop invariant expression}}
#pragma omp interchange
for (int i = 0; i < 7; ++i)
for (int j = 0; j < i; ++j)
;
// expected-error@+3 {{expected loop invariant expression}}
#pragma omp interchange
for (int i = 0; i < 7; ++i)
for (int j = 0; j < i; ++j)
;
// expected-error@+6 {{expected 3 for loops after '#pragma omp for', but found only 2}}
// expected-note@+1 {{as specified in 'collapse' clause}}
#pragma omp for collapse(3)
#pragma omp interchange
for (int i = 0; i < 7; ++i)
for (int j = 0; j < 13; ++j)
;
// expected-error@+2 {{statement after '#pragma omp interchange' must be a for loop}}
#pragma omp interchange
#pragma omp for
for (int i = 0; i < 7; ++i)
;
// expected-error@+3 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'j'}}
#pragma omp interchange
for (int i = 0; i < 7; ++i)
for (int j = 0; j/3<7; ++j)
;
}
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