Tests: Add cases for typical CheckIPOSupported usage

10 files changed, 99 insertions, 0 deletions

diff --git a/Tests/CMakeLists.txt b/Tests/CMakeLists.txt
index 910ff39..baa6813 100644
--- a/Tests/CMakeLists.txt
+++ b/Tests/CMakeLists.txt
@@ -477,6 +477,17 @@ if(BUILD_TESTING)
 
   ADD_TEST_MACRO(Module.CheckTypeSize CheckTypeSize)
 
+  set(Module.CheckIPOSupported-C_BUILD_OPTIONS -DCMake_TEST_IPO_WORKS_C=${CMake_TEST_IPO_WORKS_C})
+  ADD_TEST_MACRO(Module.CheckIPOSupported-C CheckIPOSupported-C)
+
+  set(Module.CheckIPOSupported-CXX_BUILD_OPTIONS -DCMake_TEST_IPO_WORKS_CXX=${CMake_TEST_IPO_WORKS_CXX})
+  ADD_TEST_MACRO(Module.CheckIPOSupported-CXX CheckIPOSupported-CXX)
+
+  if(CMAKE_Fortran_COMPILER)
+    set(Module.CheckIPOSupported-Fortran_BUILD_OPTIONS -DCMake_TEST_IPO_WORKS_Fortran=${CMake_TEST_IPO_WORKS_Fortran})
+    ADD_TEST_MACRO(Module.CheckIPOSupported-Fortran CheckIPOSupported-Fortran)
+  endif()
+
   add_test(Module.ExternalData ${CMAKE_CTEST_COMMAND}
     --build-and-test
     "${CMake_SOURCE_DIR}/Tests/Module/ExternalData"
diff --git a/Tests/Module/CheckIPOSupported-C/CMakeLists.txt b/Tests/Module/CheckIPOSupported-C/CMakeLists.txt
new file mode 100644
index 0000000..607dcd3
--- /dev/null
+++ b/Tests/Module/CheckIPOSupported-C/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 3.8)
+project(CheckIPOSupported-C LANGUAGES C)
+
+cmake_policy(SET CMP0069 NEW)
+
+include(CheckIPOSupported)
+check_ipo_supported(RESULT ipo_supported)
+if(ipo_supported)
+  set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
+elseif(CMake_TEST_IPO_WORKS_C)
+  message(FATAL_ERROR "IPO expected to work")
+endif()
+
+add_library(foo foo.c)
+add_executable(CheckIPOSupported-C main.c)
+target_link_libraries(CheckIPOSupported-C PUBLIC foo)
+
+enable_testing()
+add_test(NAME CheckIPOSupported-C COMMAND CheckIPOSupported-C)
diff --git a/Tests/Module/CheckIPOSupported-C/foo.c b/Tests/Module/CheckIPOSupported-C/foo.c
new file mode 100644
index 0000000..1e56597
--- /dev/null
+++ b/Tests/Module/CheckIPOSupported-C/foo.c
@@ -0,0 +1,4 @@
+int foo()
+{
+  return 0x42;
+}
diff --git a/Tests/Module/CheckIPOSupported-C/main.c b/Tests/Module/CheckIPOSupported-C/main.c
new file mode 100644
index 0000000..99204ab
--- /dev/null
+++ b/Tests/Module/CheckIPOSupported-C/main.c
@@ -0,0 +1,9 @@
+int foo();
+
+int main()
+{
+  if (foo() == 0) {
+    return 1;
+  }
+  return 0;
+}
diff --git a/Tests/Module/CheckIPOSupported-CXX/CMakeLists.txt b/Tests/Module/CheckIPOSupported-CXX/CMakeLists.txt
new file mode 100644
index 0000000..2dede93
--- /dev/null
+++ b/Tests/Module/CheckIPOSupported-CXX/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 3.8)
+project(CheckIPOSupported-CXX LANGUAGES CXX)
+
+cmake_policy(SET CMP0069 NEW)
+
+include(CheckIPOSupported)
+check_ipo_supported(RESULT ipo_supported)
+if(ipo_supported)
+  set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
+elseif(CMake_TEST_IPO_WORKS_CXX)
+  message(FATAL_ERROR "IPO expected to work")
+endif()
+
+add_library(foo foo.cpp)
+add_executable(CheckIPOSupported-CXX main.cpp)
+target_link_libraries(CheckIPOSupported-CXX PUBLIC foo)
+
+enable_testing()
+add_test(NAME CheckIPOSupported-CXX COMMAND CheckIPOSupported-CXX)
diff --git a/Tests/Module/CheckIPOSupported-CXX/foo.cpp b/Tests/Module/CheckIPOSupported-CXX/foo.cpp
new file mode 100644
index 0000000..1e56597
--- /dev/null
+++ b/Tests/Module/CheckIPOSupported-CXX/foo.cpp
@@ -0,0 +1,4 @@
+int foo()
+{
+  return 0x42;
+}
diff --git a/Tests/Module/CheckIPOSupported-CXX/main.cpp b/Tests/Module/CheckIPOSupported-CXX/main.cpp
new file mode 100644
index 0000000..99204ab
--- /dev/null
+++ b/Tests/Module/CheckIPOSupported-CXX/main.cpp
@@ -0,0 +1,9 @@
+int foo();
+
+int main()
+{
+  if (foo() == 0) {
+    return 1;
+  }
+  return 0;
+}
diff --git a/Tests/Module/CheckIPOSupported-Fortran/CMakeLists.txt b/Tests/Module/CheckIPOSupported-Fortran/CMakeLists.txt
new file mode 100644
index 0000000..dee5c25
--- /dev/null
+++ b/Tests/Module/CheckIPOSupported-Fortran/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 3.8)
+project(CheckIPOSupported-Fortran LANGUAGES Fortran)
+
+cmake_policy(SET CMP0069 NEW)
+
+include(CheckIPOSupported)
+check_ipo_supported(RESULT ipo_supported)
+if(ipo_supported)
+  set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
+elseif(CMake_TEST_IPO_WORKS_Fortran)
+  message(FATAL_ERROR "IPO expected to work")
+endif()
+
+add_library(foo foo.f)
+add_executable(CheckIPOSupported-Fortran main.f)
+target_link_libraries(CheckIPOSupported-Fortran PUBLIC foo)
+
+enable_testing()
+add_test(NAME CheckIPOSupported-Fortran COMMAND CheckIPOSupported-Fortran)
diff --git a/Tests/Module/CheckIPOSupported-Fortran/foo.f b/Tests/Module/CheckIPOSupported-Fortran/foo.f
new file mode 100644
index 0000000..945d2d5
--- /dev/null
+++ b/Tests/Module/CheckIPOSupported-Fortran/foo.f
@@ -0,0 +1,2 @@
+	SUBROUTINE FOO
+	END
diff --git a/Tests/Module/CheckIPOSupported-Fortran/main.f b/Tests/Module/CheckIPOSupported-Fortran/main.f
new file mode 100644
index 0000000..9d1de9f
--- /dev/null
+++ b/Tests/Module/CheckIPOSupported-Fortran/main.f
@@ -0,0 +1,3 @@
+	PROGRAM BOO
+	CALL FOO()
+	END