1 // 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 4 5 // RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -emit-llvm -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -o - %s | FileCheck --check-prefix SIMD-ONLY0 %s 6 // RUN: %clang_cc1 -fopenmp-simd -x c++ -std=c++11 -fexceptions -fcxx-exceptions -triple x86_64-unknown-unknown -emit-pch -o %t %s 7 // RUN: %clang_cc1 -fopenmp-simd -x c++ -std=c++11 -include-pch %t -fsyntax-only -verify %s -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -emit-llvm -o - | FileCheck --check-prefix SIMD-ONLY0 %s 8 // SIMD-ONLY0-NOT: {{__kmpc|__tgt}} 9 // expected-no-diagnostics 10 #ifndef HEADER 11 #define HEADER 12 // CHECK-DAG: [[IMPLICIT_BARRIER_SECTIONS_LOC:@.+]] = private unnamed_addr global %{{.+}} { i32 0, i32 194, i32 0, i32 0, i8* 13 // CHECK-DAG: [[SECTIONS_LOC:@.+]] = private unnamed_addr global %{{.+}} { i32 0, i32 1026, i32 0, i32 0, i8* 14 // CHECK-LABEL: foo 15 void foo() { extern void mayThrow(); mayThrow(); }; 16 // CHECK-LABEL: bar 17 void bar() { extern void mayThrow(); mayThrow(); }; 18 19 template <class T> 20 T tmain() { 21 #pragma omp parallel 22 #pragma omp sections 23 { 24 foo(); 25 } 26 return T(); 27 } 28 29 // CHECK-LABEL: @main 30 int main() { 31 float l = 0.0; // Used as a base point in checks. 32 // CHECK: [[GTID:%.+]] = call{{.*}} i32 @__kmpc_global_thread_num({{.*}}) 33 // CHECK: store float 34 #pragma omp sections 35 { 36 // CHECK: store i32 0, i32* [[LB_PTR:%.+]], 37 // CHECK: store i32 1, i32* [[UB_PTR:%.+]], 38 // CHECK: call void @__kmpc_for_static_init_4(%{{.+}}* [[SECTIONS_LOC]], i32 [[GTID]], i32 34, i32* [[IS_LAST_PTR:%.+]], i32* [[LB_PTR]], i32* [[UB_PTR]], i32* [[STRIDE_PTR:%.+]], i32 1, i32 1) 39 // <<UB = min(UB, GlobalUB);>> 40 // CHECK: [[UB:%.+]] = load i32, i32* [[UB_PTR]] 41 // CHECK: [[CMP:%.+]] = icmp slt i32 [[UB]], 1 42 // CHECK: [[MIN_UB_GLOBALUB:%.+]] = select i1 [[CMP]], i32 [[UB]], i32 1 43 // CHECK: store i32 [[MIN_UB_GLOBALUB]], i32* [[UB_PTR]] 44 // <<IV = LB;>> 45 // CHECK: [[LB:%.+]] = load i32, i32* [[LB_PTR]] 46 // CHECK: store i32 [[LB]], i32* [[IV_PTR:%.+]] 47 // CHECK: br label %[[INNER_FOR_COND:.+]] 48 // CHECK: [[INNER_FOR_COND]] 49 // <<IV <= UB?>> 50 // CHECK: [[IV:%.+]] = load i32, i32* [[IV_PTR]] 51 // CHECK: [[UB:%.+]] = load i32, i32* [[UB_PTR]] 52 // CHECK: [[CMP:%.+]] = icmp sle i32 [[IV]], [[UB]] 53 // CHECK: br i1 [[CMP]], label %[[INNER_LOOP_BODY:.+]], label %[[INNER_LOOP_END:.+]] 54 // CHECK: [[INNER_LOOP_BODY]] 55 // <<TRUE>> - > <BODY> 56 // CHECK: [[IV:%.+]] = load i32, i32* [[IV_PTR]] 57 // CHECK: switch i32 [[IV]], label %[[SECTIONS_EXIT:.+]] [ 58 // CHECK-NEXT: i32 0, label %[[SECTIONS_CASE0:.+]] 59 // CHECK-NEXT: i32 1, label %[[SECTIONS_CASE1:.+]] 60 #pragma omp section 61 // CHECK: [[SECTIONS_CASE0]] 62 // CHECK-NEXT: invoke void @{{.*}}foo{{.*}}() 63 // CHECK: br label %[[SECTIONS_EXIT]] 64 foo(); 65 #pragma omp section 66 // CHECK: [[SECTIONS_CASE1]] 67 // CHECK-NEXT: invoke void @{{.*}}bar{{.*}}() 68 // CHECK: br label %[[SECTIONS_EXIT]] 69 bar(); 70 // CHECK: [[SECTIONS_EXIT]] 71 // <<++IV;>> 72 // CHECK: [[IV:%.+]] = load i32, i32* [[IV_PTR]] 73 // CHECK-NEXT: [[INC:%.+]] = add nsw i32 [[IV]], 1 74 // CHECK-NEXT: store i32 [[INC]], i32* [[IV_PTR]] 75 // CHECK-NEXT: br label %[[INNER_FOR_COND]] 76 // CHECK: [[INNER_LOOP_END]] 77 } 78 // CHECK: call void @__kmpc_for_static_fini(%{{.+}}* [[SECTIONS_LOC]], i32 [[GTID]]) 79 // CHECK: call void @__kmpc_barrier(%{{.+}}* [[IMPLICIT_BARRIER_SECTIONS_LOC]], 80 #pragma omp sections nowait 81 { 82 foo(); 83 #pragma omp section 84 bar(); 85 } 86 // CHECK-NOT: __kmpc_cancel_barrier 87 return tmain<int>(); 88 } 89 90 // CHECK-LABEL: tmain 91 // CHECK: call void {{.*}} @__kmpc_fork_call( 92 // CHECK-NOT: __kmpc_global_thread_num 93 // CHECK: call void @__kmpc_for_static_init_4( 94 // CHECK: invoke void @{{.*}}foo{{.*}}() 95 // CHECK-NEXT: unwind label %[[TERM_LPAD:.+]] 96 // CHECK: call void @__kmpc_for_static_fini( 97 // CHECK: call void @__kmpc_barrier(%{{.+}}* [[IMPLICIT_BARRIER_SECTIONS_LOC]], 98 // CHECK: ret 99 // CHECK: [[TERM_LPAD]] 100 // CHECK: call void @__clang_call_terminate(i8* 101 // CHECK-NEXT: unreachable 102 103 #endif 104