clang/test/OpenMP/barrier_codegen.cpp

   1 // RUN: %clang_cc1 -verify -fopenmp -x c++ -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s --check-prefixes=CHECK,CLANGCG
   2 // RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple x86_64-unknown-unknown -emit-pch -o %t %s
   3 // RUN: %clang_cc1 -fopenmp -x c++ -triple x86_64-unknown-unknown -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CLANGCG
   4
   5 // RUN: %clang_cc1 -verify -fopenmp -x c++ -triple x86_64-unknown-unknown -fopenmp-enable-irbuilder -emit-llvm %s -o - | FileCheck %s --check-prefixes=CHECK,IRBUILDER
   6 // RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple x86_64-unknown-unknown -fopenmp-enable-irbuilder -emit-pch -o %t %s
   7 // RUN: %clang_cc1 -fopenmp -x c++ -triple x86_64-unknown-unknown -fopenmp-enable-irbuilder -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,IRBUILDER
   8
   9 // RUN: %clang_cc1 -verify -fopenmp -x c++ -triple x86_64-unknown-unknown -fopenmp-enable-irbuilder -mllvm -openmp-ir-builder-optimistic-attributes -emit-llvm %s -o - | FileCheck %s --check-prefixes=CHECK,IRBUILDER_OPT
  10 // RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple x86_64-unknown-unknown -fopenmp-enable-irbuilder -emit-pch -o %t %s
  11 // RUN: %clang_cc1 -fopenmp -x c++ -triple x86_64-unknown-unknown -fopenmp-enable-irbuilder -mllvm -openmp-ir-builder-optimistic-attributes -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,IRBUILDER_OPT
  12
  13 // RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
  14 // RUN: %clang_cc1 -fopenmp-simd -x c++ -std=c++11 -triple x86_64-unknown-unknown -emit-pch -o %t %s
  15 // RUN: %clang_cc1 -fopenmp-simd -x c++ -triple x86_64-unknown-unknown -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck --check-prefix SIMD-ONLY0 %s
  16 // SIMD-ONLY0-NOT: {{__kmpc|__tgt}}
  17 // expected-no-diagnostics
  18 #ifndef HEADER
  19 #define HEADER
  20
  21 // CHECK: [[IDENT_T:%.+]] = type { i32, i32, i32, i32, ptr }
  22 // CHECK-DAG: [[EXPLICIT_BARRIER_LOC:@.+]] = {{.+}} [[IDENT_T]] { i32 0, i32 34, i32 0, i32 {{[0-9]+}}, ptr @{{.+}} }
  23 // CHECK-DAG: [[LOC:@.+]] = {{.+}} [[IDENT_T]] { i32 0, i32 2, i32 0, i32 {{[0-9]+}}, ptr @{{.+}} }
  24
  25 void foo() {}
  26
  27 template <class T>
  28 T tmain(T argc) {
  29   static T a;
  30 #pragma omp barrier
  31   return a + argc;
  32 }
  33
  34 // CHECK-LABEL: @main
  35 int main(int argc, char **argv) {
  36   static int a;
  37 #pragma omp barrier
  38   // CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num(ptr [[LOC]])
  39   // CHECK: call void @__kmpc_barrier(ptr [[EXPLICIT_BARRIER_LOC]], i32 [[GTID]])
  40   // CHECK: call {{.+}} [[TMAIN_INT:@.+]](i{{[0-9][0-9]}}
  41   // CHECK: call {{.+}} [[TMAIN_CHAR:@.+]](i{{[0-9]}}
  42   return tmain(argc) + tmain(argv[0][0]) + a;
  43 }
  44
  45 // CLANGCG:            declare i32 @__kmpc_global_thread_num(ptr)
  46 // IRBUILDER:          ; Function Attrs: nounwind
  47 // IRBUILDER-NEXT:     declare i32 @__kmpc_global_thread_num(ptr) #
  48 // IRBUILDER_OPT:      ; Function Attrs: nofree nosync nounwind willreturn memory(argmem: read, inaccessiblemem: read)
  49 // IRBUILDER_OPT-NEXT: declare i32 @__kmpc_global_thread_num(ptr nocapture nofree readonly) #
  50
  51 // CHECK: define {{.+}} [[TMAIN_INT]](
  52 // CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num(ptr [[LOC]])
  53 // CHECK: call void @__kmpc_barrier(ptr [[EXPLICIT_BARRIER_LOC]], i32 [[GTID]])
  54
  55 // CHECK: define {{.+}} [[TMAIN_CHAR]](
  56 // CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num(ptr [[LOC]])
  57 // CHECK: call void @__kmpc_barrier(ptr [[EXPLICIT_BARRIER_LOC]], i32 [[GTID]])
  58
  59 #endif