xref: /llvm-project/clang/test/OpenMP/ompx_attributes_codegen.cpp (revision 3c8efd79283b4c9d25483bc69e3096ccdbddddef)

// REQUIRES: amdgpu-registered-target

// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple x86_64-unknown-unknown -fopenmp-targets=amdgcn-amd-amdhsa -emit-llvm-bc %s -o %t-ppc-host.bc
// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple amdgcn-amd-amdhsa -fopenmp-targets=amdgcn-amd-amdhsa -emit-llvm %s -fopenmp-is-target-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o - | FileCheck %s --check-prefix=AMD
// RUN: %clang_cc1 -target-cpu gfx900 -fopenmp -x c++ -std=c++11 -triple amdgcn-amd-amdhsa -fopenmp-targets=amdgcn-amd-amdhsa -emit-llvm %s -fopenmp-is-target-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o - | FileCheck %s --check-prefix=AMD
// RUN: %clang_cc1 -target-cpu gfx900 -fopenmp -x c++ -std=c++11 -triple amdgcn-amd-amdhsa -fopenmp-targets=amdgcn-amd-amdhsa -dwarf-version=5 -emit-llvm %s -fopenmp-is-target-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o - | FileCheck %s --check-prefix=AMD
// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple nvptx64 -fopenmp-targets=nvptx64 -emit-llvm %s -fopenmp-is-target-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o - | FileCheck %s --check-prefix=NVIDIA
// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple nvptx64 -fopenmp-targets=nvptx64 -emit-llvm %s -fopenmp-is-target-device -dwarf-version=5 -fopenmp-host-ir-file-path %t-ppc-host.bc -o - | FileCheck %s --check-prefix=NVIDIA
// expected-no-diagnostics


// Check that the target attributes are set on the generated kernel
void func() {
  // AMD: amdgpu_kernel void @__omp_offloading[[HASH:.*]]_l18(ptr {{[^,]+}}) #0
  // AMD: amdgpu_kernel void @__omp_offloading[[HASH:.*]]_l20(ptr {{[^,]+}})
  // AMD: amdgpu_kernel void @__omp_offloading[[HASH:.*]]_l22(ptr {{[^,]+}}) #4

  #pragma omp target ompx_attribute([[clang::amdgpu_flat_work_group_size(10, 20)]])
  {}
  #pragma omp target teams ompx_attribute(__attribute__((launch_bounds(45, 90))))
  {}
  #pragma omp target teams distribute parallel for simd ompx_attribute([[clang::amdgpu_flat_work_group_size(3, 17)]]) device(3) ompx_attribute(__attribute__((amdgpu_waves_per_eu(3, 7))))
  for (int i = 0; i < 1000; ++i)
  {}
}

// AMD: attributes #0
// AMD-SAME: "amdgpu-flat-work-group-size"="10,20"
// AMD-SAME: "omp_target_thread_limit"="20"
// AMD: "omp_target_thread_limit"="45"
// AMD: attributes #4
// AMD-SAME: "amdgpu-flat-work-group-size"="3,17"
// AMD-SAME: "amdgpu-waves-per-eu"="3,7"
// AMD-SAME: "omp_target_thread_limit"="17"

// It is unclear if we should use the AMD annotations for other targets, we do for now.
// NVIDIA: "omp_target_thread_limit"="20"
// NVIDIA: "omp_target_thread_limit"="45"
// NVIDIA: "omp_target_thread_limit"="17"
// NVIDIA: !{ptr @__omp_offloading[[HASH1:.*]]_l18, !"maxntidx", i32 20}
// NVIDIA: !{ptr @__omp_offloading[[HASH2:.*]]_l20, !"maxntidx", i32 45}
// NVIDIA: !{ptr @__omp_offloading[[HASH3:.*]]_l22, !"maxntidx", i32 17}