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Pirama Arumuga Nainarb6d69932015-07-01 12:25:36 -07001// RUN: %clang_cc1 -verify -fopenmp -x c++ -emit-llvm -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -o - %s | FileCheck %s
2// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -fexceptions -fcxx-exceptions -triple x86_64-unknown-unknown -emit-pch -o %t %s
3// RUN: %clang_cc1 -fopenmp -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
Pirama Arumuga Nainar58878f82015-05-06 11:48:57 -07004// expected-no-diagnostics
Pirama Arumuga Nainar87d948e2016-03-03 15:49:35 -08005// REQUIRES: x86-registered-target
Pirama Arumuga Nainar58878f82015-05-06 11:48:57 -07006#ifndef HEADER
7#define HEADER
Pirama Arumuga Nainar58878f82015-05-06 11:48:57 -07008// CHECK-LABEL: foo
9void foo() {};
10// CHECK-LABEL: bar
11void bar() {};
12
13template <class T>
14T tmain() {
15#pragma omp parallel sections
16 {
17 foo();
18 }
19 return T();
20}
21
22// CHECK-LABEL: @main
23int main() {
Pirama Arumuga Nainar87d948e2016-03-03 15:49:35 -080024// CHECK: call void (%{{.+}}*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%{{.+}}* @{{.+}}, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* [[OMP_PARALLEL_FUNC:@.+]] to void (i32*, i32*, ...)*))
Pirama Arumuga Nainar58878f82015-05-06 11:48:57 -070025// CHECK-LABEL: }
Pirama Arumuga Nainar87d948e2016-03-03 15:49:35 -080026// CHECK: define internal void [[OMP_PARALLEL_FUNC]](i32* noalias [[GTID_PARAM_ADDR:%.+]], i32* noalias %{{.+}})
Pirama Arumuga Nainar58878f82015-05-06 11:48:57 -070027// CHECK: store i32* [[GTID_PARAM_ADDR]], i32** [[GTID_REF_ADDR:%.+]],
28#pragma omp parallel sections
29 {
30// CHECK: store i32 0, i32* [[LB_PTR:%.+]],
31// CHECK: store i32 1, i32* [[UB_PTR:%.+]],
32// CHECK: [[GTID_REF:%.+]] = load i32*, i32** [[GTID_REF_ADDR]],
33// CHECK: [[GTID:%.+]] = load i32, i32* [[GTID_REF]],
34// 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)
35// <<UB = min(UB, GlobalUB);>>
36// CHECK: [[UB:%.+]] = load i32, i32* [[UB_PTR]]
37// CHECK: [[CMP:%.+]] = icmp slt i32 [[UB]], 1
38// CHECK: [[MIN_UB_GLOBALUB:%.+]] = select i1 [[CMP]], i32 [[UB]], i32 1
39// CHECK: store i32 [[MIN_UB_GLOBALUB]], i32* [[UB_PTR]]
40// <<IV = LB;>>
41// CHECK: [[LB:%.+]] = load i32, i32* [[LB_PTR]]
42// CHECK: store i32 [[LB]], i32* [[IV_PTR:%.+]]
43// CHECK: br label %[[INNER_FOR_COND:.+]]
44// CHECK: [[INNER_FOR_COND]]
45// <<IV <= UB?>>
46// CHECK: [[IV:%.+]] = load i32, i32* [[IV_PTR]]
47// CHECK: [[UB:%.+]] = load i32, i32* [[UB_PTR]]
48// CHECK: [[CMP:%.+]] = icmp sle i32 [[IV]], [[UB]]
49// CHECK: br i1 [[CMP]], label %[[INNER_LOOP_BODY:.+]], label %[[INNER_LOOP_END:.+]]
50// CHECK: [[INNER_LOOP_BODY]]
51// <<TRUE>> - > <BODY>
52// CHECK: [[IV:%.+]] = load i32, i32* [[IV_PTR]]
53// CHECK: switch i32 [[IV]], label %[[SECTIONS_EXIT:.+]] [
54// CHECK-NEXT: i32 0, label %[[SECTIONS_CASE0:.+]]
55// CHECK-NEXT: i32 1, label %[[SECTIONS_CASE1:.+]]
56#pragma omp section
57// CHECK: [[SECTIONS_CASE0]]
58// CHECK-NEXT: invoke void @{{.*}}foo{{.*}}()
59// CHECK: br label %[[SECTIONS_EXIT]]
60 foo();
61#pragma omp section
62// CHECK: [[SECTIONS_CASE1]]
63// CHECK-NEXT: invoke void @{{.*}}bar{{.*}}()
64// CHECK: br label %[[SECTIONS_EXIT]]
65 bar();
66// CHECK: [[SECTIONS_EXIT]]
67// <<++IV;>>
68// CHECK: [[IV:%.+]] = load i32, i32* [[IV_PTR]]
69// CHECK-NEXT: [[INC:%.+]] = add nsw i32 [[IV]], 1
70// CHECK-NEXT: store i32 [[INC]], i32* [[IV_PTR]]
71// CHECK-NEXT: br label %[[INNER_FOR_COND]]
72// CHECK: [[INNER_LOOP_END]]
73 }
74// CHECK: call void @__kmpc_for_static_fini(%{{.+}}* @{{.+}}, i32 [[GTID]])
Pirama Arumuga Nainar58878f82015-05-06 11:48:57 -070075 return tmain<int>();
76}
77
78// CHECK-LABEL: tmain
79// CHECK: call void {{.*}} @__kmpc_fork_call(
80// CHECK-NOT: __kmpc_global_thread_num
Pirama Arumuga Nainar4967a712016-09-19 22:19:55 -070081// CHECK: call void @__kmpc_for_static_init_4(
82// CHECK: invoke void @{{.*}}foo{{.*}}()
Pirama Arumuga Nainar58878f82015-05-06 11:48:57 -070083// CHECK-NEXT: unwind label %[[TERM_LPAD:.+]]
Pirama Arumuga Nainar4967a712016-09-19 22:19:55 -070084// CHECK: call void @__kmpc_for_static_fini(
Pirama Arumuga Nainar58878f82015-05-06 11:48:57 -070085// CHECK-NEXT: ret
86// CHECK: [[TERM_LPAD]]
87// CHECK: call void @__clang_call_terminate(i8*
88// CHECK-NEXT: unreachable
89
90#endif