1 // RUN: %clang_cc1 -verify -fopenmp=libiomp5 -x c++ -emit-llvm -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -o - %s | FileCheck %s
2 // RUN: %clang_cc1 -fopenmp=libiomp5 -x c++ -std=c++11 -fexceptions -fcxx-exceptions -triple x86_64-unknown-unknown -emit-pch -o %t %s
3 // RUN: %clang_cc1 -fopenmp=libiomp5 -x c++ -std=c++11 -include-pch %t -fsyntax-only -verify %s -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -emit-llvm -o - | FileCheck %s
4 // expected-no-diagnostics
5
6 #ifndef HEADER
7 #define HEADER
8 // CHECK: [[IMPLICIT_BARRIER_LOC:@.+]] = private unnamed_addr constant %{{.+}} { i32 0, i32 66, i32 0, i32 0, i8*
9 // CHECK-LABEL: foo
foo()10 void foo() {};
11 // CHECK-LABEL: bar
bar()12 void bar() {};
13
14 template <class T>
tmain()15 T tmain() {
16 #pragma omp parallel sections
17 {
18 foo();
19 }
20 return T();
21 }
22
23 // CHECK-LABEL: @main
main()24 int main() {
25 // CHECK: call void (%{{.+}}*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%{{.+}}* @{{.+}}, i32 1, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, %{{.+}}*)* [[OMP_PARALLEL_FUNC:@.+]] to void (i32*, i32*, ...)*), i8* %{{.+}})
26 // CHECK-LABEL: }
27 // CHECK: define internal void [[OMP_PARALLEL_FUNC]](i32* [[GTID_PARAM_ADDR:%.+]], i32* %{{.+}}, %{{.+}}* %{{.+}})
28 // CHECK: store i32* [[GTID_PARAM_ADDR]], i32** [[GTID_REF_ADDR:%.+]],
29 #pragma omp parallel sections
30 {
31 // CHECK: store i32 0, i32* [[LB_PTR:%.+]],
32 // CHECK: store i32 1, i32* [[UB_PTR:%.+]],
33 // CHECK: [[GTID_REF:%.+]] = load i32*, i32** [[GTID_REF_ADDR]],
34 // CHECK: [[GTID:%.+]] = load i32, i32* [[GTID_REF]],
35 // CHECK: call void @__kmpc_for_static_init_4(%{{.+}}* @{{.+}}, i32 [[GTID]], i32 34, i32* [[IS_LAST_PTR:%.+]], i32* [[LB_PTR]], i32* [[UB_PTR]], i32* [[STRIDE_PTR:%.+]], i32 1, i32 1)
36 // <<UB = min(UB, GlobalUB);>>
37 // CHECK: [[UB:%.+]] = load i32, i32* [[UB_PTR]]
38 // CHECK: [[CMP:%.+]] = icmp slt i32 [[UB]], 1
39 // CHECK: [[MIN_UB_GLOBALUB:%.+]] = select i1 [[CMP]], i32 [[UB]], i32 1
40 // CHECK: store i32 [[MIN_UB_GLOBALUB]], i32* [[UB_PTR]]
41 // <<IV = LB;>>
42 // CHECK: [[LB:%.+]] = load i32, i32* [[LB_PTR]]
43 // CHECK: store i32 [[LB]], i32* [[IV_PTR:%.+]]
44 // CHECK: br label %[[INNER_FOR_COND:.+]]
45 // CHECK: [[INNER_FOR_COND]]
46 // <<IV <= UB?>>
47 // CHECK: [[IV:%.+]] = load i32, i32* [[IV_PTR]]
48 // CHECK: [[UB:%.+]] = load i32, i32* [[UB_PTR]]
49 // CHECK: [[CMP:%.+]] = icmp sle i32 [[IV]], [[UB]]
50 // CHECK: br i1 [[CMP]], label %[[INNER_LOOP_BODY:.+]], label %[[INNER_LOOP_END:.+]]
51 // CHECK: [[INNER_LOOP_BODY]]
52 // <<TRUE>> - > <BODY>
53 // CHECK: [[IV:%.+]] = load i32, i32* [[IV_PTR]]
54 // CHECK: switch i32 [[IV]], label %[[SECTIONS_EXIT:.+]] [
55 // CHECK-NEXT: i32 0, label %[[SECTIONS_CASE0:.+]]
56 // CHECK-NEXT: i32 1, label %[[SECTIONS_CASE1:.+]]
57 #pragma omp section
58 // CHECK: [[SECTIONS_CASE0]]
59 // CHECK-NEXT: invoke void @{{.*}}foo{{.*}}()
60 // CHECK: br label %[[SECTIONS_EXIT]]
61 foo();
62 #pragma omp section
63 // CHECK: [[SECTIONS_CASE1]]
64 // CHECK-NEXT: invoke void @{{.*}}bar{{.*}}()
65 // CHECK: br label %[[SECTIONS_EXIT]]
66 bar();
67 // CHECK: [[SECTIONS_EXIT]]
68 // <<++IV;>>
69 // CHECK: [[IV:%.+]] = load i32, i32* [[IV_PTR]]
70 // CHECK-NEXT: [[INC:%.+]] = add nsw i32 [[IV]], 1
71 // CHECK-NEXT: store i32 [[INC]], i32* [[IV_PTR]]
72 // CHECK-NEXT: br label %[[INNER_FOR_COND]]
73 // CHECK: [[INNER_LOOP_END]]
74 }
75 // CHECK: call void @__kmpc_for_static_fini(%{{.+}}* @{{.+}}, i32 [[GTID]])
76 // CHECK: call i32 @__kmpc_cancel_barrier(%{{.+}}* [[IMPLICIT_BARRIER_LOC]],
77 return tmain<int>();
78 }
79
80 // CHECK-LABEL: tmain
81 // CHECK: call void {{.*}} @__kmpc_fork_call(
82 // CHECK-NOT: __kmpc_global_thread_num
83 // CHECK: [[RES:%.+]] = call i32 @__kmpc_single(
84 // CHECK-NEXT: [[BOOLRES:%.+]] = icmp ne i32 [[RES]], 0
85 // CHECK-NEXT: br i1 [[BOOLRES]], label %[[THEN:.+]], label %[[END:.+]]
86 // CHECK: [[THEN]]
87 // CHECK-NEXT: invoke void @{{.*}}foo{{.*}}()
88 // CHECK-NEXT: unwind label %[[TERM_LPAD:.+]]
89 // CHECK: call void @__kmpc_end_single(
90 // CHECK-NEXT: br label %[[END]]
91 // CHECK: [[END]]
92 // CHECK-NEXT: call i32 @__kmpc_cancel_barrier(%{{.+}}* [[IMPLICIT_BARRIER_LOC]],
93 // CHECK-NEXT: ret
94 // CHECK: [[TERM_LPAD]]
95 // CHECK: call void @__clang_call_terminate(i8*
96 // CHECK-NEXT: unreachable
97
98 #endif
99