89 lines
3.0 KiB
C++
89 lines
3.0 KiB
C++
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// RUN: %clang_cc1 -verify -fopenmp %s -Wuninitialized
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// RUN: %clang_cc1 -verify -fopenmp-simd %s -Wuninitialized
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void xxx(int argc) {
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int x; // expected-note {{initialize the variable 'x' to silence this warning}}
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#pragma omp parallel master
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argc = x; // expected-warning {{variable 'x' is uninitialized when used here}}
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}
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#pragma omp parallel master // expected-error {{unexpected OpenMP directive '#pragma omp parallel master'}}
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int foo() {
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return 0;
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}
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int a;
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struct S;
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S& bar();
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int main(int argc, char **argv) {
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#pragma omp parallel master nowait // expected-error {{unexpected OpenMP clause 'nowait' in directive '#pragma omp parallel master'}}
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#pragma omp parallel master unknown // expected-warning {{extra tokens at the end of '#pragma omp parallel master' are ignored}}
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foo();
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{
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#pragma omp master
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} // expected-error {{expected statement}}
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{
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#pragma omp parallel master
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} // expected-error {{expected statement}}
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S &s = bar();
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#pragma omp parallel master
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(void)&s;
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#pragma omp parallel master { // expected-warning {{extra tokens at the end of '#pragma omp parallel master' are ignored}}
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foo();
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#pragma omp parallel master ( // expected-warning {{extra tokens at the end of '#pragma omp parallel master' are ignored}}
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foo();
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#pragma omp parallel master [ // expected-warning {{extra tokens at the end of '#pragma omp parallel master' are ignored}}
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foo();
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#pragma omp parallel master ] // expected-warning {{extra tokens at the end of '#pragma omp parallel master' are ignored}}
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foo();
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#pragma omp parallel master ) // expected-warning {{extra tokens at the end of '#pragma omp parallel master' are ignored}}
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foo();
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#pragma omp parallel master } // expected-warning {{extra tokens at the end of '#pragma omp parallel master' are ignored}}
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foo();
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#pragma omp parallel master
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// expected-warning@+1 {{extra tokens at the end of '#pragma omp parallel master' are ignored}}
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#pragma omp parallel master unknown()
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foo();
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L1:
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foo();
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#pragma omp parallel master
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;
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#pragma omp parallel master
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{
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for (int i = 0; i < 10; ++i) {
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switch(argc) {
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case (0):
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#pragma omp parallel master
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{
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foo();
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break; // expected-error {{'break' statement not in loop or switch statement}}
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continue; // expected-error {{'continue' statement not in loop statement}}
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}
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default:
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break;
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}
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}
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goto L1; // expected-error {{use of undeclared label 'L1'}}
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argc++;
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}
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#pragma omp parallel master default(none) // expected-note 2 {{explicit data sharing attribute requested here}}
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{
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++argc; // expected-error {{variable 'argc' must have explicitly specified data sharing attributes}}
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++a; // expected-error {{variable 'a' must have explicitly specified data sharing attributes}}
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}
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goto L2; // expected-error {{use of undeclared label 'L2'}}
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#pragma omp parallel master
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L2:
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foo();
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#pragma omp parallel master
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{
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return 1; // expected-error {{cannot return from OpenMP region}}
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}
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return 0;
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}
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