xref: /llvm-project/clang/test/SemaOpenACC/compute-construct-num_gangs-clause.c (revision b0cfbfd74bfd9d077f7c1854a1b38dcbe9d402e4)
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