1 // RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -verify -fopenmp \
2 // RUN: -Wuninitialized %s
3
foo()4 void foo()
5 {
6 int i,j,k;
7 int z;
8
9 // expected-error@+2 {{statement after '#pragma omp teams loop' must be a for loop}}
10 #pragma omp teams loop bind(thread)
11 i = 0;
12
13 // OpenMP 5.1 [2.22 Nesting of regions]
14 //
15 // A barrier region may not be closely nested inside a worksharing, loop,
16 // task, taskloop, critical, ordered, atomic, or masked region.
17
18 // expected-error@+3 {{region cannot be closely nested inside 'teams loop' region}}
19 #pragma omp teams loop bind(thread)
20 for (i=0; i<1000; ++i) {
21 #pragma omp barrier
22 }
23
24 // A masked region may not be closely nested inside a worksharing, loop,
25 // atomic, task, or taskloop region.
26
27 // expected-error@+3 {{region cannot be closely nested inside 'teams loop' region}}
28 #pragma omp teams loop bind(thread)
29 for (i=0; i<1000; ++i) {
30 #pragma omp masked filter(2)
31 { }
32 }
33
34 // An ordered region that corresponds to an ordered construct without any
35 // clause or with the threads or depend clause may not be closely nested
36 // inside a critical, ordered, loop, atomic, task, or taskloop region.
37
38 // expected-error@+3 {{region cannot be closely nested inside 'teams loop' region; perhaps you forget to enclose 'omp ordered' directive into a for or a parallel for region with 'ordered' clause?}}
39 #pragma omp teams loop bind(thread)
40 for (i=0; i<1000; ++i) {
41 #pragma omp ordered
42 { }
43 }
44
45 // expected-error@+3 {{region cannot be closely nested inside 'teams loop' region; perhaps you forget to enclose 'omp ordered' directive into a for or a parallel for region with 'ordered' clause?}}
46 #pragma omp teams loop bind(thread)
47 for (i=0; i<1000; ++i) {
48 #pragma omp ordered threads
49 { }
50 }
51
52 // expected-error@+3 {{region cannot be closely nested inside 'teams loop' region; perhaps you forget to enclose 'omp ordered' directive into a for or a parallel for region with 'ordered' clause?}}
53 #pragma omp teams loop bind(thread)
54 for (i=0; i<1000; ++i) {
55 #pragma omp ordered depend(source)
56 }
57
58 // bind clause
59
60 // expected-error@+1 {{directive '#pragma omp teams loop' cannot contain more than one 'bind' clause}}
61 #pragma omp teams loop bind(thread) bind(thread)
62 for (i=0; i<1000; ++i) {
63 }
64
65 // expected-error@+2 {{expected 'teams', 'parallel' or 'thread' in OpenMP clause 'bind'}}
66 #pragma omp target
67 #pragma omp teams loop bind(other)
68 for (i=0; i<1000; ++i) {
69 }
70
71 // collapse clause
72
73 // expected-error@+4 {{expected 2 for loops after '#pragma omp teams loop', but found only 1}}
74 // expected-note@+1 {{as specified in 'collapse' clause}}
75 #pragma omp teams loop collapse(2) bind(thread)
76 for (i=0; i<1000; ++i)
77 z = i+11;
78
79 // expected-error@+1 {{directive '#pragma omp teams loop' cannot contain more than one 'collapse' clause}}
80 #pragma omp teams loop collapse(2) collapse(2) bind(thread)
81 for (i=0; i<1000; ++i)
82 for (j=0; j<1000; ++j)
83 z = i+j+11;
84
85 // order clause
86
87 // expected-error@+1 {{expected 'concurrent' in OpenMP clause 'order'}}
88 #pragma omp teams loop order(foo) bind(thread)
89 for (i=0; i<1000; ++i)
90 z = i+11;
91
92 // private clause
93
94 // expected-error@+1 {{use of undeclared identifier 'undef_var'}}
95 #pragma omp teams loop private(undef_var) bind(thread)
96 for (i=0; i<1000; ++i)
97 z = i+11;
98
99 // lastprivate
100
101 // A list item may not appear in a lastprivate clause unless it is the loop
102 // iteration variable of a loop that is associated with the construct.
103
104 // expected-error@+1 {{only loop iteration variables are allowed in 'lastprivate' clause in 'omp teams loop' directives}}
105 #pragma omp teams loop lastprivate(z) bind(thread)
106 for (i=0; i<1000; ++i) {
107 z = i+11;
108 }
109
110 // expected-error@+1 {{only loop iteration variables are allowed in 'lastprivate' clause in 'omp teams loop' directives}}
111 #pragma omp teams loop lastprivate(k) collapse(2) bind(thread)
112 for (i=0; i<1000; ++i)
113 for (j=0; j<1000; ++j)
114 for (k=0; k<1000; ++k)
115 z = i+j+k+11;
116
117 // reduction
118
119 // expected-error@+1 {{use of undeclared identifier 'undef_var'}}
120 #pragma omp teams loop reduction(+:undef_var) bind(thread)
121 for (i=0; i<1000; ++i)
122 z = i+11;
123 }
124
125 template <typename T, int C>
templ_test(T t)126 void templ_test(T t) {
127 T i,z;
128
129 // expected-error@+4 {{expected 2 for loops after '#pragma omp teams loop', but found only 1}}
130 // expected-note@+1 {{as specified in 'collapse' clause}}
131 #pragma omp teams loop collapse(C) bind(thread)
132 for (i=0; i<1000; ++i)
133 z = i+11;
134
135 // expected-error@+1 {{only loop iteration variables are allowed in 'lastprivate' clause in 'omp teams loop' directives}}
136 #pragma omp teams loop lastprivate(z) bind(thread)
137 for (i=0; i<1000; ++i) {
138 z = i+11;
139 }
140 }
141
bar()142 void bar()
143 {
144 templ_test<int, 2>(16); // expected-note {{in instantiation of function template specialization 'templ_test<int, 2>' requested here}}
145 }
146