73 lines · cpp
1// RUN: %clang_cc1 -verify -fopenmp %s -Wuninitialized2 3// RUN: %clang_cc1 -verify -fopenmp-simd %s -Wuninitialized4 5void xxx(int argc) {6 int x; // expected-note {{initialize the variable 'x' to silence this warning}}7#pragma omp master8 argc = x; // expected-warning {{variable 'x' is uninitialized when used here}}9}10 11int foo();12 13int main() {14 #pragma omp master15 ;16 #pragma omp master nowait // expected-error {{unexpected OpenMP clause 'nowait' in directive '#pragma omp master'}}17 #pragma omp master unknown // expected-warning {{extra tokens at the end of '#pragma omp master' are ignored}}18 foo();19 {20 #pragma omp master21 } // expected-error {{expected statement}}22 #pragma omp for23 for (int i = 0; i < 10; ++i) {24 foo();25 #pragma omp master // expected-error {{region cannot be closely nested inside 'for' region}}26 foo();27 }28 #pragma omp sections29 {30 foo();31 #pragma omp master // expected-error {{region cannot be closely nested inside 'sections' region}}32 foo();33 }34 #pragma omp single35 for (int i = 0; i < 10; ++i) {36 foo();37 #pragma omp master allocate(i) // expected-error {{region cannot be closely nested inside 'single' region}} expected-error {{unexpected OpenMP clause 'allocate' in directive '#pragma omp master'}}38 foo();39 }40 #pragma omp master41 for (int i = 0; i < 10; ++i) {42 foo();43 #pragma omp master44 foo();45 }46 #pragma omp for ordered47 for (int i = 0; i < 10; ++i)48 #pragma omp master // expected-error {{region cannot be closely nested inside 'for' region}}49 {50 foo();51 }52 53 return 0;54}55 56int foo() {57 L1: // expected-note {{jump exits scope of OpenMP structured block}}58 foo();59 #pragma omp master60 {61 foo();62 goto L1; // expected-error {{cannot jump from this goto statement to its label}}63 }64 goto L2; // expected-error {{cannot jump from this goto statement to its label}}65 #pragma omp master66 { // expected-note {{jump bypasses OpenMP structured block}}67 L2:68 foo();69 }70 71 return 0;72}73