## Codegen adds the following build targets
#    libcudacxx.atomics.codegen
#    libcudacxx.atomics.codegen.install
## Test targets:
#    libcudacxx.test.atomics.codegen.diff

add_executable(codegen EXCLUDE_FROM_ALL codegen.cpp)

target_compile_features(codegen PRIVATE cxx_std_20)

set(
  atomic_generated_output
  "${libcudacxx_BINARY_DIR}/codegen/cuda_ptx_generated.h"
)
set(
  atomic_install_location
  "${libcudacxx_SOURCE_DIR}/include/cuda/std/__atomic/functions"
)

add_custom_target(
  libcudacxx.atomics.codegen
  COMMAND codegen "${atomic_generated_output}"
  BYPRODUCTS "${atomic_generated_output}"
)

add_custom_target(
  libcudacxx.atomics.codegen.install
  # gersemi: off
  COMMAND
    "${CMAKE_COMMAND}" -E copy
      "${atomic_generated_output}"
      "${atomic_install_location}/cuda_ptx_generated.h"
  # gersemi: on
  DEPENDS libcudacxx.atomics.codegen
  BYPRODUCTS "${atomic_install_location}/cuda_ptx_generated.h"
)

add_test(
  NAME libcudacxx.test.atomics.codegen.diff
  # gersemi: off
  COMMAND
    "${CMAKE_COMMAND}" -E compare_files
      "${atomic_install_location}/cuda_ptx_generated.h"
      "${atomic_generated_output}"
  # gersemi: on
)

set_tests_properties(
  libcudacxx.test.atomics.codegen.diff
  PROPERTIES REQUIRED_FILES "${atomic_generated_output}"
)