clang/test/OpenMP/function-attr.cpp

   1 // RUN: %clang_cc1 -fopenmp -x c++ -triple x86_64-apple-darwin10  -stack-protector 2 -emit-llvm -o - %s | FileCheck %s
   2
   3 // RUN: %clang_cc1 -fopenmp-simd -x c++ -triple x86_64-apple-darwin10  -stack-protector 2 -emit-llvm -o - %s | FileCheck --check-prefix SIMD-ONLY0 %s
   4 // SIMD-ONLY0-NOT: {{__kmpc|__tgt}}
   5
   6 // Check that function attributes are added to the OpenMP runtime functions.
   7
   8 template <class T>
   9 struct S {
  10   T f;
  11   S(T a) : f(a) {}
  12   S() : f() {}
  13   operator T() { return T(); }
  14   ~S() {}
  15 };
  16
  17 // CHECK: define internal void @.omp.copyprivate.copy_func(ptr noundef %0, ptr noundef %1) [[ATTR0:#[0-9]+]] {
  18
  19 void foo0();
  20
  21 int foo1() {
  22   char a;
  23
  24 #pragma omp parallel
  25   a = 2;
  26 #pragma omp single copyprivate(a)
  27   foo0();
  28
  29   return 0;
  30 }
  31
  32 // CHECK: define internal void @.omp_task_privates_map.({{.*}}) [[ATTR3:#[0-9]+]] {
  33 // CHECK: define internal noundef i32 @.omp_task_entry.({{.*}}) [[ATTR0]] {
  34 // CHECK: define internal noundef i32 @.omp_task_destructor.({{.*}}) [[ATTR0]] {
  35
  36 int foo2() {
  37   S<double> s_arr[] = {1, 2};
  38   S<double> var(3);
  39 #pragma omp task private(s_arr, var)
  40   s_arr[0] = var;
  41   return 0;
  42 }
  43
  44 // CHECK: define internal void @_Z4foo3iPfS_.omp_outlined.omp.reduction.reduction_func(ptr noundef %0, ptr noundef %1) [[ATTR0]] {
  45
  46 float foo3(int n, float *a, float *b) {
  47   int i;
  48   float result;
  49
  50 #pragma omp parallel for private(i) reduction(+:result)
  51   for (i=0; i < n; i++)
  52     result = result + (a[i] * b[i]);
  53   return result;
  54 }
  55
  56 // CHECK: attributes [[ATTR0]] = {{{.*}} sspstrong {{.*}}}
  57 // CHECK: attributes [[ATTR3]] = {{{.*}} sspstrong {{.*}}}