1 // RUN: %clang_cc1 -triple=x86_64-pc-win32 -verify -fopenmp -std=c99 -fms-extensions -Wno-pragma-pack -Wno-strict-prototypes %s
2 // RUN: %clang_cc1 -triple=x86_64-pc-win32 -verify -fopenmp-simd -std=c99 -fms-extensions -Wno-pragma-pack -Wno-strict-prototypes %s
3
4
5 #pragma omp declare // expected-error {{expected an OpenMP directive}}
6
7 int foo(void);
8
9 #pragma omp declare variant // expected-error {{expected '(' after 'declare variant'}}
10 #pragma omp declare variant( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
11 #pragma omp declare variant(foo // expected-error {{expected ')'}} expected-error {{expected 'match' clause on 'omp declare variant' directive}} expected-note {{to match this '('}}
12 #pragma omp declare variant(x) // expected-error {{use of undeclared identifier 'x'}} expected-error {{expected 'match' clause on}}
13 #pragma omp declare variant(foo) // expected-error {{expected 'match' clause on 'omp declare variant' directive}}
14 #pragma omp declare variant(foo) // expected-error {{expected 'match' clause on 'omp declare variant' directive}}
15 #pragma omp declare variant(foo) xxx // expected-error {{expected 'match' clause on 'omp declare variant' directive}}
16 #pragma omp declare variant(foo) match // expected-error {{expected '(' after 'match'}}
17 #pragma omp declare variant(foo) match( // expected-error {{expected ')'}} expected-warning {{expected identifier or string literal describing a context set; set skipped}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}} expected-note {{to match this '('}}
18 #pragma omp declare variant(foo) match() // expected-warning {{expected identifier or string literal describing a context set; set skipped}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
19 #pragma omp declare variant(foo) match(xxx) // expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
20 #pragma omp declare variant(foo) match(xxx=) // expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
21 #pragma omp declare variant(foo) match(xxx=yyy) // expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
22 #pragma omp declare variant(foo) match(xxx=yyy}) // expected-error {{expected ')'}} expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}} expected-note {{to match this '('}} expected-error {{expected 'match' clause on 'omp declare variant' directive}}
23 #pragma omp declare variant(foo) match(xxx={) // expected-error {{expected ')'}} expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}} expected-note {{to match this '('}}
24 #pragma omp declare variant(foo) match(xxx={}) // expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
25 #pragma omp declare variant(foo) match(xxx={vvv, vvv}) // expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
26 #pragma omp declare variant(foo) match(xxx={vvv} xxx) // expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
27 #pragma omp declare variant(foo) match(xxx={vvv}) xxx // expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}} expected-error {{expected 'match' clause on 'omp declare variant' directive}}
28 #pragma omp declare variant(foo) match(implementation={xxx}) // expected-warning {{'xxx' is not a valid context selector for the context set 'implementation'; selector ignored}} expected-note {{context selector options are: 'vendor' 'extension' 'unified_address' 'unified_shared_memory' 'reverse_offload' 'dynamic_allocators' 'atomic_default_mem_order'}} expected-note {{the ignored selector spans until here}}
29 #pragma omp declare variant(foo) match(implementation={vendor}) // expected-warning {{the context selector 'vendor' in context set 'implementation' requires a context property defined in parentheses; selector ignored}} expected-note {{the ignored selector spans until here}}
30 #pragma omp declare variant(foo) match(implementation={vendor(}) // expected-error {{expected ')'}} expected-warning {{expected identifier or string literal describing a context property; property skipped}} expected-note {{context property options are: 'amd' 'arm' 'bsc' 'cray' 'fujitsu' 'gnu' 'ibm' 'intel' 'llvm' 'nec' 'nvidia' 'pgi' 'ti' 'unknown'}} expected-note {{to match this '('}}
31 #pragma omp declare variant(foo) match(implementation={vendor()}) // expected-warning {{expected identifier or string literal describing a context property; property skipped}} expected-note {{context property options are: 'amd' 'arm' 'bsc' 'cray' 'fujitsu' 'gnu' 'ibm' 'intel' 'llvm' 'nec' 'nvidia' 'pgi' 'ti' 'unknown'}}
32 #pragma omp declare variant(foo) match(implementation={vendor(score ibm)}) // expected-error {{expected '(' after 'score'}} expected-warning {{expected '':'' after the score expression; '':'' assumed}}
33 #pragma omp declare variant(foo) match(implementation={vendor(score( ibm)}) // expected-error {{use of undeclared identifier 'ibm'}} expected-error {{expected ')'}} expected-warning {{expected '':'' after the score expression; '':'' assumed}} expected-warning {{expected identifier or string literal describing a context property; property skipped}} expected-note {{context property options are: 'amd' 'arm' 'bsc' 'cray' 'fujitsu' 'gnu' 'ibm' 'intel' 'llvm' 'nec' 'nvidia' 'pgi' 'ti' 'unknown'}} expected-note {{to match this '('}}
34 #pragma omp declare variant(foo) match(implementation={vendor(score(2 ibm)}) // expected-error {{expected ')'}} expected-error {{expected ')'}} expected-warning {{expected '':'' after the score expression; '':'' assumed}} expected-warning {{expected identifier or string literal describing a context property; property skipped}} expected-note {{to match this '('}} expected-note {{context property options are: 'amd' 'arm' 'bsc' 'cray' 'fujitsu' 'gnu' 'ibm' 'intel' 'llvm' 'nec' 'nvidia' 'pgi' 'ti' 'unknown'}} expected-note {{to match this '('}}
35 #pragma omp declare variant(foo) match(implementation={vendor(score(foo()) ibm)}) // expected-warning {{expected '':'' after the score expression; '':'' assumed}} expected-warning {{score expressions in the OpenMP context selector need to be constant; foo() is not and will be ignored}}
36 #pragma omp declare variant(foo) match(implementation={vendor(score(5): ibm), vendor(llvm)}) // expected-warning {{the context selector 'vendor' was used already in the same 'omp declare variant' directive; selector ignored}} expected-note {{the previous context selector 'vendor' used here}} expected-note {{the ignored selector spans until here}}
37 #pragma omp declare variant(foo) match(implementation={vendor(score(5): ibm), kind(cpu)}) // expected-warning {{the context selector 'kind' is not valid for the context set 'implementation'; selector ignored}} expected-note {{the context selector 'kind' can be nested in the context set 'device'; try 'match(device={kind(property)})'}} expected-note {{the ignored selector spans until here}}
38 #pragma omp declare variant(foo) match(device={xxx}) // expected-warning {{'xxx' is not a valid context selector for the context set 'device'; selector ignored}} expected-note {{context selector options are: 'kind' 'arch' 'isa'}} expected-note {{the ignored selector spans until here}}
39 #pragma omp declare variant(foo) match(device={kind}) // expected-warning {{the context selector 'kind' in context set 'device' requires a context property defined in parentheses; selector ignored}} expected-note {{the ignored selector spans until here}}
40 #pragma omp declare variant(foo) match(device={kind(}) // expected-error {{expected ')'}} expected-warning {{expected identifier or string literal describing a context property; property skipped}} expected-note {{context property options are: 'host' 'nohost' 'cpu' 'gpu' 'fpga' 'any'}} expected-note {{to match this '('}}
41 #pragma omp declare variant(foo) match(device={kind()}) // expected-warning {{expected identifier or string literal describing a context property; property skipped}} expected-note {{context property options are: 'host' 'nohost' 'cpu' 'gpu' 'fpga' 'any'}}
42 #pragma omp declare variant(foo) match(device={kind(score cpu)}) // expected-error {{expected '(' after 'score'}} expected-warning {{expected '':'' after the score expression; '':'' assumed}} expected-warning {{the context selector 'kind' in the context set 'device' cannot have a score ('<invalid>'); score ignored}}
43 #pragma omp declare variant(foo) match(device = {kind(score(ibm) }) // expected-error {{use of undeclared identifier 'ibm'}} expected-error {{expected ')'}} expected-warning {{expected '':'' after the score expression; '':'' assumed}} expected-warning {{the context selector 'kind' in the context set 'device' cannot have a score ('<recovery-expr>()'); score ignored}} expected-warning {{expected identifier or string literal describing a context property; property skipped}} expected-note {{context property options are: 'host' 'nohost' 'cpu' 'gpu' 'fpga' 'any'}} expected-note {{to match this '('}}
44 #pragma omp declare variant(foo) match(device={kind(score(2 gpu)}) // expected-error {{expected ')'}} expected-error {{expected ')'}} expected-warning {{expected '':'' after the score expression; '':'' assumed}} expected-warning {{the context selector 'kind' in the context set 'device' cannot have a score ('2'); score ignored}} expected-warning {{expected identifier or string literal describing a context property; property skipped}} expected-note {{to match this '('}} expected-note {{context property options are: 'host' 'nohost' 'cpu' 'gpu' 'fpga' 'any'}} expected-note {{to match this '('}}
45 #pragma omp declare variant(foo) match(device={kind(score(foo()) ibm)}) // expected-warning {{expected '':'' after the score expression; '':'' assumed}} expected-warning {{the context selector 'kind' in the context set 'device' cannot have a score ('foo()'); score ignored}} expected-warning {{'ibm' is not a valid context property for the context selector 'kind' and the context set 'device'; property ignored}} expected-note {{try 'match(implementation={vendor(ibm)})'}} expected-note {{the ignored property spans until here}}
46 #pragma omp declare variant(foo) match(device={kind(score(5): host), kind(llvm)}) // expected-warning {{the context selector 'kind' in the context set 'device' cannot have a score ('5'); score ignored}} expected-warning {{the context selector 'kind' was used already in the same 'omp declare variant' directive; selector ignored}} expected-note {{the previous context selector 'kind' used here}} expected-note {{the ignored selector spans until here}}
47 #pragma omp declare variant(foo) match(device={kind(score(5): nohost), vendor(llvm)}) // expected-warning {{the context selector 'kind' in the context set 'device' cannot have a score ('5'); score ignored}} expected-warning {{the context selector 'vendor' is not valid for the context set 'device'; selector ignored}} expected-note {{the context selector 'vendor' can be nested in the context set 'implementation'; try 'match(implementation={vendor(property)})'}} expected-note {{the ignored selector spans until here}}
48 #pragma omp declare variant(foo) match(implementation={extension("aaa")}) // expected-warning {{'aaa' is not a valid context property for the context selector 'extension' and the context set 'implementation'; property ignored}} expected-note {{context property options are: 'match_all' 'match_any' 'match_none'}} expected-note {{the ignored property spans until here}}
49 int bar(void);
50
51 #pragma omp declare variant(foo) match(implementation = {vendor(score(foo) :llvm)}) // expected-warning {{score expressions in the OpenMP context selector need to be constant; foo is not and will be ignored}}
52 #pragma omp declare variant(foo) match(implementation = {vendor(score(foo()) :llvm)}) // expected-warning {{score expressions in the OpenMP context selector need to be constant; foo() is not and will be ignored}}
53 #pragma omp declare variant(foo) match(implementation = {vendor(score(<expr>) :llvm)}) // expected-error {{expected expression}} expected-error {{use of undeclared identifier 'expr'}} expected-error {{expected expression}}
54 #pragma omp declare variant(foo) match(user = {condition(foo)}) // expected-error {{the user condition in the OpenMP context selector needs to be constant; foo is not}}
55 #pragma omp declare variant(foo) match(user = {condition(foo())}) // expected-error {{the user condition in the OpenMP context selector needs to be constant; foo() is not}}
56 #pragma omp declare variant(foo) match(user = {condition(<expr>)}) // expected-error {{expected expression}} expected-error {{use of undeclared identifier 'expr'}} expected-error {{expected expression}} expected-note {{the ignored selector spans until here}}
57 int score_and_cond_non_const(void);
58
59 #pragma omp declare variant(foo) match(construct={teams,parallel,for,simd})
60 #pragma omp declare variant(foo) match(construct={target teams}) // expected-error {{expected ')'}} expected-warning {{expected '}' after the context selectors for the context set "construct"; '}' assumed}} expected-note {{to match this '('}} expected-error {{expected 'match' clause on 'omp declare variant' directive}}
61 #pragma omp declare variant(foo) match(construct={parallel for}) // expected-error {{expected ')'}} expected-warning {{expected '}' after the context selectors for the context set "construct"; '}' assumed}} expected-note {{to match this '('}} expected-error {{expected 'match' clause on 'omp declare variant' directive}}
62 #pragma omp declare variant(foo) match(construct={for simd}) // expected-error {{expected ')'}} expected-warning {{expected '}' after the context selectors for the context set "construct"; '}' assumed}} expected-note {{to match this '('}} expected-error {{expected 'match' clause on 'omp declare variant' directive}}
63 int construct(void);
64
65 #pragma omp declare variant(foo) match(xxx={}) // expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
66 int a; // expected-error {{'#pragma omp declare variant' can only be applied to functions}}
67
68 #pragma omp declare variant(foo) match(xxx={}) // expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
69 #pragma omp threadprivate(a) // expected-error {{'#pragma omp declare variant' can only be applied to functions}}
70 int var;
71 #pragma omp threadprivate(var)
72
73
74 #pragma omp declare variant(foo) match(xxx={}) // expected-error {{function declaration is expected after 'declare variant' directive}}
75 #pragma omp declare // expected-error {{expected an OpenMP directive}}
76
77
78
79 #pragma omp declare variant(foo) match(xxx={}) // expected-error {{function declaration is expected after 'declare variant' directive}}
80 #pragma omp declare variant(foo) match(xxx={}) // expected-error {{function declaration is expected after 'declare variant' directive}}
81 #pragma options align=packed
82 int main(void);
83
84
85
86 #pragma omp declare variant(foo) match(implementation={vendor(llvm)}) // expected-error {{function declaration is expected after 'declare variant' directive}}
87 #pragma omp declare variant(foo) match(implementation={vendor(llvm)}) // expected-error {{function declaration is expected after 'declare variant' directive}}
88 #pragma init_seg(compiler)
89 int main(void);
90
91
92 #pragma omp declare variant(foo) match(xxx={}) // expected-error {{single declaration is expected after 'declare variant' directive}} expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
93 int b, c;
94
95 int no_proto();
96 #pragma omp declare variant(no_proto) match(xxx={}) // expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
97 int no_proto_too();
98
99 int proto1(int);
100
101 #pragma omp declare variant(proto1) match(xxx={}) // expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
102 int diff_proto(); // expected-note {{previous declaration is here}}
103
104 int diff_proto(double); // expected-error {{conflicting types for 'diff_proto'}}
105
106 #pragma omp declare variant(no_proto) match(xxx={}) // expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
107 int diff_proto1(double);
108
109 int after_use_variant(void);
110 int after_use(void);
bar(void)111 int bar(void) {
112 return after_use();
113 }
114
115 // expected-error@+1 {{variant in '#pragma omp declare variant' is the same as the base function}}
116 #pragma omp declare variant (self) \
117 match(construct={dispatch}, device={arch(arm)})
118 void self(int n);
119
self_test(int n,int d_no)120 void self_test(int n, int d_no) {
121 #pragma omp dispatch device(d_no) nowait
122 self(n);
123 }
124
125 #pragma omp declare variant(after_use_variant) match(xxx={}) // expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-warning {{'#pragma omp declare variant' cannot be applied for function after first usage; the original function might be used}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
126 int after_use(void);
127 #pragma omp declare variant(after_use_variant) match(xxx={}) // expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
defined(void)128 int defined(void) { return 0; }
defined1(void)129 int defined1(void) { return 0; }
130
131 #pragma omp declare variant(after_use_variant) match(xxx={}) // expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-warning {{'#pragma omp declare variant' cannot be applied to the function that was defined already; the original function might be used}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
132 int defined1(void);
133
134
135 int diff_cc_variant(void);
136
137 #pragma omp declare variant(diff_cc_variant) match(xxx={}) // expected-error {{variant in '#pragma omp declare variant' with type 'int (void)' is incompatible with type 'int (void) __attribute__((vectorcall))'}} expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
138 __vectorcall int diff_cc(void);
139
140 int diff_ret_variant(void);
141
142 #pragma omp declare variant(diff_ret_variant) match(xxx={}) // expected-error {{variant in '#pragma omp declare variant' with type 'int (void)' is incompatible with type 'void (void)'}} expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
143 void diff_ret(void);
144
145 void incompat_attr_variant(void);
146
147 #pragma omp declare variant(incompat_attr_variant) match(implementation={vendor(llvm)})
148 __attribute__((cpu_dispatch(generic))) void incompat_attr_cpu_dispatch(void); // expected-error {{'#pragma omp declare variant' is not compatible with any target-specific attributes}}
149
150 #pragma omp declare variant(incompat_attr_variant) match(implementation={vendor(llvm)})
151 __attribute__((cpu_specific(generic))) void incompat_attr_cpu_specific(void); // expected-error {{'#pragma omp declare variant' is not compatible with any target-specific attributes}}
152
153 // 'incompat_attr_target' is not a multiversion function until...
154 #pragma omp declare variant(incompat_attr_variant) match(implementation={vendor(llvm)})
155 __attribute__((target("mmx"))) void incompat_attr_target(void); // expected-error {{'#pragma omp declare variant' is not compatible with any target-specific attributes}}
156
157 // This declaration makes it one.
158 #pragma omp declare variant(incompat_attr_variant) match(implementation={vendor(llvm)})
159 __attribute__((target("sse"))) void incompat_attr_target(void); // expected-error {{'#pragma omp declare variant' is not compatible with any target-specific attributes}}
160
161 // 'incompat_attr_target_default' is always a multiversion function.
162 #pragma omp declare variant(incompat_attr_variant) match(implementation={vendor(llvm)})
163 __attribute__((target("default"))) void incompat_attr_target_default(void); // expected-error {{'#pragma omp declare variant' is not compatible with any target-specific attributes}}
164
165 #pragma omp declare variant(incompat_attr_variant) match(implementation={vendor(llvm)})
166 __attribute__((target_clones("sse,default"))) void incompat_attr_target_clones(void); // expected-error {{'#pragma omp declare variant' is not compatible with any target-specific attributes}}
167
168 void marked(void);
169 void not_marked(void);
170
171 #pragma omp declare variant(not_marked) match(implementation={vendor(unknown)}, device={kind(cpu)}) // expected-note {{marked as 'declare variant' here}}
172 void marked_variant(void);
173
174 #pragma omp declare variant(marked_variant) match(xxx={}) // expected-warning {{'xxx' is not a valid context set in a `declare variant`; set ignored}} expected-warning {{variant function in '#pragma omp declare variant' is itself marked as '#pragma omp declare variant'}} expected-note {{context set options are: 'construct' 'device' 'implementation' 'user'}} expected-note {{the ignored set spans until here}}
175 void marked(void);
176
177 #pragma omp declare variant(foo) match(device = {isa("foo")})
178 int unknown_isa_trait(void);
179 #pragma omp declare variant(foo) match(device = {isa(foo)})
180 int unknown_isa_trait2(void);
181 #pragma omp declare variant(foo) match(device = {kind(fpga), isa(bar)})
182 int ignored_isa_trait(void);
183
caller(void)184 void caller(void) {
185 unknown_isa_trait(); // expected-warning {{isa trait 'foo' is not known to the current target; verify the spelling or consider restricting the context selector with the 'arch' selector further}}
186 unknown_isa_trait2(); // expected-warning {{isa trait 'foo' is not known to the current target; verify the spelling or consider restricting the context selector with the 'arch' selector further}}
187 ignored_isa_trait();
188 }
189
190 // Unknown arch
191 #pragma omp begin declare variant match(device={isa(sse2020)}) // expected-warning {{isa trait 'sse2020' is not known to the current target; verify the spelling or consider restricting the context selector with the 'arch' selector further}}
192 #pragma omp end declare variant
193
194 // Unknown arch guarded by arch.
195 #pragma omp begin declare variant match(device={isa(sse2020), arch(ppc)})
196 #pragma omp end declare variant
197
198 #pragma omp declare variant // expected-error {{function declaration is expected after 'declare variant' directive}}
199
200 #pragma omp declare variant // expected-error {{function declaration is expected after 'declare variant' directive}}
201
202 // FIXME: If the scores are equivalent we should detect that and allow it.
203 #pragma omp begin declare variant match(implementation = {vendor(score(2) \
204 : llvm)})
205 #pragma omp declare variant(foo) match(implementation = {vendor(score(2) \
206 : llvm)}) // expected-error@-1 {{nested OpenMP context selector contains duplicated trait 'llvm' in selector 'vendor' and set 'implementation' with different score}}
207 int conflicting_nested_score(void);
208 #pragma omp end declare variant
209
210 // FIXME: We should build the conjuction of different conditions, see also the score fixme above.
211 #pragma omp begin declare variant match(user = {condition(1)})
212 #pragma omp declare variant(foo) match(user = {condition(1)}) // expected-error {{nested user conditions in OpenMP context selector not supported (yet)}}
213 int conflicting_nested_condition(void);
214 #pragma omp end declare variant
215