enable some warnings to pass binskim

Signed-off-by: Zhu, Shaojie <[email protected]>

Author: ShaojieZhuIntel

llvm/cmake/modules/HandleLLVMOptions.cmake

@@ -701,6 +701,8 @@ if ( LLVM_COMPILER_IS_GCC_COMPATIBLE AND LLVM_ENABLE_MODULES )
   append("${module_flags}" CMAKE_CXX_FLAGS)
 endif( LLVM_COMPILER_IS_GCC_COMPATIBLE AND LLVM_ENABLE_MODULES )
 
+option(LLVM_ENABLE_WARNINGS_FOR_PASS_BINSKIM "Enable compiler warnings for pass binskim." OFF)
+
 if (MSVC)
   if (NOT CLANG_CL)
     set(msvc_warning_flags
@@ -763,6 +765,13 @@ if (MSVC)
       )
   endif(NOT CLANG_CL)
 
+  # Remove -wd4146 -wd4244 -wd4267 to pass Binskim
+  if(LLVM_ENABLE_WARNINGS_FOR_PASS_BINSKIM)
+    string(REPLACE "-wd4146" "" msvc_warning_flags "${msvc_warning_flags}")
+    string(REPLACE "-wd4244" "" msvc_warning_flags "${msvc_warning_flags}")
+    string(REPLACE "-wd4267" "" msvc_warning_flags "${msvc_warning_flags}")
+  endif()
+
   # Enable warnings
   if (LLVM_ENABLE_WARNINGS)
     # Put /W4 in front of all the -we flags. cl.exe doesn't care, but for