Re-enabling narrowing errors

Fixes narrowing conversion build errors in test_common

Removing disable of narrowing errors in main CMakeLists.txt
and moving it down to test_conformance CMakeLists.txt where
there are many more build errors revealed from this fix

Contributes KhronosGroup#787

Signed-off-by: Ellen Norris-Thompson <ellen.norris-thompson@arm.com>

CMakeLists.txt

@@ -104,7 +104,6 @@ if(CMAKE_COMPILER_IS_GNUCC OR "${CMAKE_CXX_COMPILER_ID}" MATCHES "(Apple)?Clang"
  # Enable more warnings if not doing a release build.
  add_cxx_flag_if_supported(-Wall)
  endif()
- add_cxx_flag_if_supported(-Wno-narrowing)
  add_cxx_flag_if_supported(-Wno-format)
  add_cxx_flag_if_supported(-Wno-error=cpp) # Allow #warning directive
  add_cxx_flag_if_supported(-Wno-unknown-pragmas) # Issue #785

test_common/harness/kernelHelpers.cpp

@@ -1626,7 +1626,7 @@ Version get_device_cl_c_version(cl_device_id device)
  &opencl_c_version_size_in_bytes);
  test_error_ret(error,
  "clGetDeviceInfo failed for CL_DEVICE_OPENCL_C_VERSION\n",
- (Version{ -1, 0 }));
+ (Version{ 0, 0 }));
 
  std::string opencl_c_version(opencl_c_version_size_in_bytes, '\0');
  error =
@@ -1635,13 +1635,13 @@ Version get_device_cl_c_version(cl_device_id device)
 
  test_error_ret(error,
  "clGetDeviceInfo failed for CL_DEVICE_OPENCL_C_VERSION\n",
- (Version{ -1, 0 }));
+ (Version{ 0, 0 }));
 
  // Scrape out the major, minor pair from the string.
  auto major = opencl_c_version[opencl_c_version.find('.') - 1];
  auto minor = opencl_c_version[opencl_c_version.find('.') + 1];
 
- return Version{ major - '0', minor - '0' };
+ return Version{ (uint)(major - '0'), (uint)(minor - '0') };
 }
 
 Version get_device_latest_cl_c_version(cl_device_id device)
@@ -1659,22 +1659,22 @@ Version get_device_latest_cl_c_version(cl_device_id device)
  &opencl_c_all_versions_size_in_bytes);
  test_error_ret(
  error, "clGetDeviceInfo failed for CL_DEVICE_OPENCL_C_ALL_VERSIONS",
- (Version{ -1, 0 }));
+ (Version{ 0, 0 }));
  std::vector<cl_name_version> name_versions(
  opencl_c_all_versions_size_in_bytes / sizeof(cl_name_version));
  error = clGetDeviceInfo(device, CL_DEVICE_OPENCL_C_ALL_VERSIONS,
  opencl_c_all_versions_size_in_bytes,
  name_versions.data(), nullptr);
  test_error_ret(
  error, "clGetDeviceInfo failed for CL_DEVICE_OPENCL_C_ALL_VERSIONS",
- (Version{ -1, 0 }));
+ (Version{ 0, 0 }));
 
  Version max_supported_cl_c_version{};
  for (const auto &name_version : name_versions)
  {
  Version current_version{
- static_cast<int>(CL_VERSION_MAJOR(name_version.version)),
- static_cast<int>(CL_VERSION_MINOR(name_version.version))
+ static_cast<cl_uint>(CL_VERSION_MAJOR(name_version.version)),
+ static_cast<cl_uint>(CL_VERSION_MINOR(name_version.version))
  };
  max_supported_cl_c_version =
  (current_version > max_supported_cl_c_version)
@@ -1695,7 +1695,7 @@ Version get_max_OpenCL_C_for_context(cl_context context)
  auto error = clGetContextInfo(context, CL_CONTEXT_DEVICES, 0, nullptr,
  &devices_size_in_bytes);
  test_error_ret(error, "clGetDeviceInfo failed for CL_CONTEXT_DEVICES",
- (Version{ -1, 0 }));
+ (Version{ 0, 0 }));
  std::vector<cl_device_id> devices(devices_size_in_bytes
  / sizeof(cl_device_id));
  error = clGetContextInfo(context, CL_CONTEXT_DEVICES, devices_size_in_bytes,
@@ -1759,8 +1759,8 @@ bool device_supports_cl_c_version(cl_device_id device, Version version)
  for (const auto &name_version : name_versions)
  {
  Version current_version{
- static_cast<int>(CL_VERSION_MAJOR(name_version.version)),
- static_cast<int>(CL_VERSION_MINOR(name_version.version))
+ static_cast<cl_uint>(CL_VERSION_MAJOR(name_version.version)),
+ static_cast<cl_uint>(CL_VERSION_MINOR(name_version.version))
  };
  if (current_version == version)
  {

test_common/harness/rounding_mode.cpp

@@ -240,7 +240,7 @@ void UnFlushToZero(void *p)
 #if defined(__i386__) || defined(__x86_64__) || defined(_MSC_VER)
  union {
  void *p;
- int i;
+ uint i;
  } u = { p };
  _mm_setcsr(u.i);
 #elif defined(__arm__) || defined(__aarch64__)

test_common/harness/testHarness.h

@@ -25,7 +25,7 @@
 class Version {
 public:
  Version(): m_major(0), m_minor(0) {}
- Version(int major, int minor): m_major(major), m_minor(minor) {}
+ Version(uint major, uint minor): m_major(major), m_minor(minor) {}
  bool operator>(const Version &rhs) const { return to_int() > rhs.to_int(); }
  bool operator<(const Version &rhs) const { return to_int() < rhs.to_int(); }
  bool operator<=(const Version &rhs) const
@@ -49,8 +49,8 @@ class Version {
  }
 
 private:
- int m_major;
- int m_minor;
+ uint m_major;
+ uint m_minor;
 };
 
 Version get_device_cl_version(cl_device_id device);

test_conformance/CMakeLists.txt

@@ -1,6 +1,10 @@
 # Remember current source directory (`test_conformance').
 set( CLConf_Install_Base_Dir "${CMAKE_CURRENT_SOURCE_DIR}" )
 
+if(CMAKE_COMPILER_IS_GNUCC OR "${CMAKE_CXX_COMPILER_ID}" MATCHES "(Apple)?Clang")
+ add_cxx_flag_if_supported(-Wno-narrowing)
+endif()
+
 set(HARNESS_LIB harness)
 
 add_subdirectory( allocations )