1 // RUN: %clang_cc1 -verify -fopenmp -x c++ -triple x86_64-unknown-linux -emit-llvm %s -fexceptions -fcxx-exceptions -o - -fsanitize-address-use-after-scope | FileCheck %s
2 // RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple x86_64-unknown-linux -fexceptions -fcxx-exceptions -emit-pch -o %t -fopenmp-version=50 %s
3 // RUN: %clang_cc1 -fopenmp -x c++ -triple x86_64-unknown-linux -fexceptions -fcxx-exceptions -std=c++11 -include-pch %t -verify %s -emit-llvm -o - -fopenmp-version=50 | FileCheck %s
4 // expected-no-diagnostics
5 
6 // CHECK-NOT: ret i32 {{1|4|81|84}}
7 // CHECK-DAG: @_Z3barv = {{.*}}alias i32 (), i32 ()* @_Z3foov
8 // CHECK-DAG: @_ZN16SpecSpecialFuncs6MethodEv = {{.*}}alias i32 (%struct.SpecSpecialFuncs*), i32 (%struct.SpecSpecialFuncs*)* @_ZN16SpecSpecialFuncs7method_Ev
9 // CHECK-DAG: @_ZN16SpecSpecialFuncs6methodEv = linkonce_odr {{.*}}alias i32 (%struct.SpecSpecialFuncs*), i32 (%struct.SpecSpecialFuncs*)* @_ZN16SpecSpecialFuncs7method_Ev
10 // CHECK-DAG: @_ZN12SpecialFuncs6methodEv = linkonce_odr {{.*}}alias i32 (%struct.SpecialFuncs*), i32 (%struct.SpecialFuncs*)* @_ZN12SpecialFuncs7method_Ev
11 // CHECK-DAG: @_Z5prio_v = {{.*}}alias i32 (), i32 ()* @_Z5prio1v
12 // CHECK-DAG: @_ZL6prio1_v = internal alias i32 (), i32 ()* @_ZL5prio2v
13 // CHECK-DAG: @_Z4callv = {{.*}}alias i32 (), i32 ()* @_Z4testv
14 // CHECK-DAG: @_ZL9stat_usedv = internal alias i32 (), i32 ()* @_ZL10stat_used_v
15 // CHECK-DAG: @_ZN12SpecialFuncs6MethodEv = {{.*}}alias i32 (%struct.SpecialFuncs*), i32 (%struct.SpecialFuncs*)* @_ZN12SpecialFuncs7method_Ev
16 // CHECK-DAG: @fn_linkage = {{.*}}alias i32 (), i32 ()* @_Z18fn_linkage_variantv
17 // CHECK-DAG: @_Z11fn_linkage1v = {{.*}}alias i32 (), i32 ()* @fn_linkage_variant1
18 // CHECK-DAG: declare {{.*}}i32 @_Z5bazzzv()
19 // CHECK-DAG: declare {{.*}}i32 @_Z3bazv()
20 // CHECK-DAG: ret i32 2
21 // CHECK-DAG: ret i32 3
22 // CHECK-DAG: ret i32 5
23 // CHECK-DAG: ret i32 6
24 // CHECK-DAG: ret i32 7
25 // CHECK-DAG: ret i32 82
26 // CHECK-DAG: ret i32 83
27 // CHECK-DAG: ret i32 85
28 // CHECK-DAG: ret i32 86
29 // CHECK-DAG: ret i32 87
30 // CHECK-DAG: ret i32 88
31 // CHECK-NOT: ret i32 {{1|4|81|84}}
32 
33 #ifndef HEADER
34 #define HEADER
35 
36 int foo() { return 2; }
37 
38 #pragma omp declare variant(foo) match(implementation = {vendor(llvm)}, device={kind(cpu)})
39 int bar() { return 1; }
40 
41 int bazzz();
42 #pragma omp declare variant(bazzz) match(implementation = {vendor(llvm)}, device={kind(host)})
43 int baz() { return 1; }
44 
45 int test();
46 #pragma omp declare variant(test) match(implementation = {vendor(llvm)}, device={kind(cpu)})
47 int call() { return 1; }
48 
49 static int stat_unused_no_emit() { return 1; }
50 static int stat_unused_();
51 #pragma omp declare variant(stat_unused_) match(implementation = {vendor(llvm)}, device={kind(cpu)})
52 #pragma omp declare variant(stat_unused_no_emit) match(implementation = {vendor(xxx)}, device={kind(gpu)})
53 static int stat_unused() { return 1; }
54 
55 static int stat_used_();
56 #pragma omp declare variant(stat_used_) match(implementation = {vendor(llvm)}, device={kind(host)})
57 static int stat_used() { return 1; }
58 
59 int main() { return bar() + baz() + call() + stat_used(); }
60 
61 int test() { return 3; }
62 static int stat_unused_() { return 4; }
63 static int stat_used_() { return 5; }
64 
65 struct SpecialFuncs {
66   void vd() {}
67   SpecialFuncs();
68   ~SpecialFuncs();
69 
70   int method_() { return 6; }
71 #pragma omp declare variant(SpecialFuncs::method_)                             \
72     match(implementation = {vendor(llvm)}, device={kind(cpu)})
73   int method() { return 1; }
74 #pragma omp declare variant(SpecialFuncs::method_)                             \
75     match(implementation = {vendor(llvm)}, device={kind(host)})
76   int Method();
77 } s;
78 
79 int SpecialFuncs::Method() { return 1; }
80 
81 struct SpecSpecialFuncs {
82   void vd() {}
83   SpecSpecialFuncs();
84   ~SpecSpecialFuncs();
85 
86   int method_();
87 #pragma omp declare variant(SpecSpecialFuncs::method_)                         \
88     match(implementation = {vendor(llvm)}, device={kind(cpu)})
89   int method() { return 1; }
90 #pragma omp declare variant(SpecSpecialFuncs::method_)                         \
91     match(implementation = {vendor(llvm)}, device={kind(host)})
92   int Method();
93 } s1;
94 
95 int SpecSpecialFuncs::method_() { return 7; }
96 int SpecSpecialFuncs::Method() { return 1; }
97 
98 void xxx() {
99   (void)s.method();
100   (void)s1.method();
101 }
102 
103 int prio() { return 81; }
104 int prio1() { return 82; }
105 
106 #pragma omp declare variant(prio) match(implementation = {vendor(score(2): llvm)}, device={kind(cpu,host)})
107 #pragma omp declare variant(prio1) match(implementation = {vendor(score(1): llvm)}, device={kind(cpu)})
108 int prio_() { return 1; }
109 
110 static int prio2() { return 83; }
111 static int prio3() { return 84; }
112 static int prio4() { return 84; }
113 
114 #pragma omp declare variant(prio4) match(implementation = {vendor(score(8): llvm)},device={kind(cpu,host)})
115 #pragma omp declare variant(prio2) match(implementation = {vendor(score(5): llvm)})
116 #pragma omp declare variant(prio3) match(implementation = {vendor(score(7): llvm)}, device={kind(cpu)})
117 static int prio1_() { return 1; }
118 
119 int int_fn() { return prio1_(); }
120 
121 int fn_linkage_variant() { return 85; }
122 extern "C" {
123 #pragma omp declare variant(fn_linkage_variant) match(implementation = {vendor(llvm)}, device={kind(cpu)})
124 int fn_linkage() { return 1; }
125 }
126 
127 extern "C" int fn_linkage_variant1() { return 86; }
128 #pragma omp declare variant(fn_linkage_variant1) match(implementation = {vendor(llvm)}, device={kind(host)})
129 int fn_linkage1() { return 1; }
130 
131 int fn_variant2() { return 1; }
132 #pragma omp declare variant(fn_variant2) match(implementation = {vendor(llvm, ibm)}, device={kind(cpu)})
133 #pragma omp declare variant(fn_variant2) match(implementation = {vendor(llvm)}, device={kind(cpu,gpu)})
134 #pragma omp declare variant(fn_variant2) match(implementation = {vendor(llvm)}, device={kind(nohost)})
135 #pragma omp declare variant(fn_variant2) match(implementation = {vendor(llvm)}, device={kind(cpu,nohost)})
136 #pragma omp declare variant(fn_variant2) match(implementation = {vendor(llvm)}, device={kind(gpu)})
137 #pragma omp declare variant(fn_variant2) match(implementation = {vendor(llvm)}, device={kind(fpga)})
138 int fn2() { return 87; }
139 
140 #pragma omp declare variant(stat_unused_no_emit) match(implementation = {vendor(xxx)}, device={kind(gpu)})
141 template <typename T>
142 static T stat_unused_T() { return 88; }
143 
144 int bazzzzzzzz() {
145   return stat_unused_T<int>();
146 }
147 
148 #endif // HEADER
149