Catch all exceptions in render-test (#5495)

Catch all exceptions in render-test

In MSVC, the /EHsc flag is used by default,
it causes only C++ (synchronous) exceptions
to be caught by try/catch blocks.
The /EHa flag can instead be used to catch
both synchronous C++ exceptions as well
as structured asynchronous exceptions
such as those seen in segfaults or other
typical bugs.

Using /EHa allows render-test to not crash
completely if there is a buggy graphics driver in the system.

Issue 5275

cmake/CompilerFlags.cmake

@@ -16,6 +16,10 @@ function(add_supported_cxx_flags target)
     endif()
 
     foreach(flag ${flags})
+        # /EHa enables SEH on Windows, it is not available in Linux.
+        if(NOT CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
+            string(REGEX REPLACE "/EHa" "" flag "${flag}")
+        endif()
         # remove the `no-` prefix from warnings because gcc doesn't treat it as an
         # error on its own
         string(REGEX REPLACE "\\-Wno\\-(.+)" "-W\\1" flag_to_test "${flag}")

cmake/SlangTarget.cmake

@@ -337,9 +337,10 @@ function(slang_add_target dir type)
         )
     endif()
     if(ARG_EXTRA_COMPILE_OPTIONS_PRIVATE)
-        target_compile_options(
+        add_supported_cxx_flags(
             ${target}
-            PRIVATE ${ARG_EXTRA_COMPILE_OPTIONS_PRIVATE}
+            PRIVATE
+            ${ARG_EXTRA_COMPILE_OPTIONS_PRIVATE}
         )
     endif()
 

tools/CMakeLists.txt

@@ -276,6 +276,7 @@ if(SLANG_ENABLE_TESTS)
                 EXTRA_COMPILE_DEFINITIONS_PRIVATE
                     $<$<BOOL:${SLANG_ENABLE_CUDA}>:RENDER_TEST_CUDA>
                     $<$<BOOL:${SLANG_ENABLE_OPTIX}>:RENDER_TEST_OPTIX>
+                EXTRA_COMPILE_OPTIONS_PRIVATE /EHa
                 OUTPUT_NAME render-test-tool
                 REQUIRED_BY slang-test
                 FOLDER test/tools