1 // RUN: %clang_cc1 %s -fopenacc -verify 2 3 short getS(); 4 void Test() { 5 #pragma acc kernels num_gangs(1) 6 while(1); 7 8 // expected-error@+1{{OpenACC 'num_gangs' clause is not valid on 'serial' directive}} 9 #pragma acc serial num_gangs(1) 10 while(1); 11 12 #pragma acc parallel num_gangs(1) 13 while(1); 14 15 // expected-error@+2{{OpenACC 'num_gangs' clause cannot appear more than once on a 'kernels' directive}} 16 // expected-note@+1{{previous clause is here}} 17 #pragma acc kernels num_gangs(1) num_gangs(2) 18 while(1); 19 20 // expected-error@+2{{OpenACC 'num_gangs' clause cannot appear more than once on a 'parallel' directive}} 21 // expected-note@+1{{previous clause is here}} 22 #pragma acc parallel num_gangs(1) num_gangs(2) 23 while(1); 24 25 // expected-error@+1{{too many integer expression arguments provided to OpenACC 'num_gangs' clause: 'kernels' directive expects maximum of 1, 2 were provided}} 26 #pragma acc kernels num_gangs(1, getS()) 27 while(1); 28 29 // expected-error@+1{{OpenACC 'num_gangs' clause is not valid on 'serial' directive}} 30 #pragma acc serial num_gangs(1, getS()) 31 while(1); 32 #pragma acc parallel num_gangs(1, getS()) 33 while(1); 34 35 struct NotConvertible{} NC; 36 // expected-error@+1{{OpenACC clause 'num_gangs' requires expression of integer type ('struct NotConvertible' invalid)}} 37 #pragma acc parallel num_gangs(NC) 38 while(1); 39 40 // expected-error@+1{{OpenACC clause 'num_gangs' requires expression of integer type ('struct NotConvertible' invalid)}} 41 #pragma acc parallel num_gangs(1, NC) 42 while(1); 43 44 // expected-error@+1{{OpenACC clause 'num_gangs' requires expression of integer type ('struct NotConvertible' invalid)}} 45 #pragma acc parallel num_gangs(NC, 1) 46 while(1); 47 48 #pragma acc parallel num_gangs(getS(), 1, getS()) 49 while(1); 50 51 // expected-error@+1{{too many integer expression arguments provided to OpenACC 'num_gangs' clause: 'parallel' directive expects maximum of 3, 4 were provided}} 52 #pragma acc parallel num_gangs(getS(), 1, getS(), 1) 53 while(1); 54 55 // expected-error@+1{{OpenACC 'num_gangs' clause is not valid on 'loop' directive}} 56 #pragma acc loop num_gangs(1) 57 for(int i = 5; i < 10;++i); 58 } 59