Merge pull request #3337 from MeyerFabian/build/clang-cl-windows

clang with msvc backend

CMakeLists.txt

@@ -257,7 +257,11 @@ IF ((CMAKE_C_COMPILER_ID MATCHES "GNU") AND NOT CMAKE_COMPILER_IS_MINGW)
   SET(LIBSTDC++_LIBRARIES -lstdc++)
 ELSEIF(MSVC)
   # enable multi-core compilation with MSVC
+  IF( "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" ) # clang-cl
+    ADD_COMPILE_OPTIONS(/bigobj /W4 /WX )
+  ELSE() # msvc
     ADD_COMPILE_OPTIONS(/MP /bigobj /W4 /WX)
+  ENDIF()
   # disable "elements of array '' will be default initialized" warning on MSVC2013
   IF(MSVC12)
     ADD_COMPILE_OPTIONS(/wd4351)

code/AssetLib/Blender/BlenderTessellator.cpp

@@ -386,7 +386,14 @@ void BlenderTessellatorP2T::ReferencePoints( std::vector< Blender::PointP2T >& p
 // ------------------------------------------------------------------------------------------------
 inline PointP2T& BlenderTessellatorP2T::GetActualPointStructure( p2t::Point& point ) const
 {
+#if defined __clang__
+#    pragma clang diagnostic push
+#    pragma clang diagnostic ignored "-Winvalid-offsetof"
+#endif // __clang__
     unsigned int pointOffset = offsetof( PointP2T, point2D );
+#if defined __clang__
+#    pragma clang diagnostic pop
+#endif
     PointP2T& pointStruct = *reinterpret_cast< PointP2T* >( reinterpret_cast< char* >( &point ) - pointOffset );
     if ( pointStruct.magic != static_cast<int>( BLEND_TESS_MAGIC ) )
     {
@@ -394,7 +401,6 @@ inline PointP2T& BlenderTessellatorP2T::GetActualPointStructure( p2t::Point& poi
     }
     return pointStruct;
 }
-
 // ------------------------------------------------------------------------------------------------
 void BlenderTessellatorP2T::MakeFacesFromTriangles( std::vector< p2t::Triangle* >& triangles ) const
 {

code/AssetLib/M3D/m3d.h

@@ -84,7 +84,7 @@ typedef uint16_t M3D_INDEX;
 #ifndef M3D_BONEMAXLEVEL
 #define M3D_BONEMAXLEVEL 8
 #endif
-#ifndef _MSC_VER
+#if !defined(_MSC_VER) || defined(__clang__)
 #ifndef _inline
 #define _inline __inline__
 #endif
@@ -101,7 +101,7 @@ typedef uint16_t M3D_INDEX;
 #define _register
 #endif
 
-#if _MSC_VER > 1920
+#if _MSC_VER > 1920 && !defined(__clang__)
 #    pragma warning(push)
 #    pragma warning(disable : 4100 4127 4189 4505 4244 4403  4701 4703)
 #    if (_MSC_VER > 1800 )

code/AssetLib/Step/STEPFile.h

@@ -130,8 +130,8 @@ namespace STEP {
      *  coupled with a line number. */
 // -------------------------------------------------------------------------------
 struct SyntaxError : DeadlyImportError {
-    enum {
+    enum : uint64_t {
-        LINE_NOT_SPECIFIED = 0xffffffffffffffffLL
+        LINE_NOT_SPECIFIED = 0xfffffffffffffffLL
     };
 
     SyntaxError(const std::string &s, uint64_t line = LINE_NOT_SPECIFIED);
@@ -143,8 +143,8 @@ struct SyntaxError : DeadlyImportError {
      *  It is typically coupled with both an entity id and a line number.*/
 // -------------------------------------------------------------------------------
 struct TypeError : DeadlyImportError {
-    enum {
+    enum : uint64_t {
-        ENTITY_NOT_SPECIFIED = 0xffffffffffffffffLL,
+        ENTITY_NOT_SPECIFIED = 0xffffffffffffffffUL,
         ENTITY_NOT_SPECIFIED_32 = 0x00000000ffffffff
     };
 

code/CMakeLists.txt

@@ -1066,7 +1066,7 @@ endif()
 
 ADD_DEFINITIONS( -DASSIMP_BUILD_DLL_EXPORT )
 
-if ( MSVC )
+IF( MSVC OR "${CMAKE_CXX_SIMULATE_ID}" MATCHES "MSVC") # clang with MSVC ABI
   ADD_DEFINITIONS( -D_SCL_SECURE_NO_WARNINGS )
   ADD_DEFINITIONS( -D_CRT_SECURE_NO_WARNINGS )
 endif ()

contrib/gtest/include/gtest/internal/gtest-port.h

@@ -312,10 +312,22 @@
     __pragma(warning(disable: warnings))
 # define GTEST_DISABLE_MSC_WARNINGS_POP_()          \
     __pragma(warning(pop))
+# if defined(__clang__)
+#  define GTEST_DISABLE_CLANG_DEPRECATED_WARNINGS_PUSH_() \
+      _Pragma("clang diagnostic push") \
+      _Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"")
+#  define GTEST_DISABLE_CLANG_WARNINGS_POP_() \
+      _Pragma("clang diagnostic pop")
+# else
+#  define GTEST_DISABLE_CLANG_DEPRECATED_WARNINGS_PUSH_()
+#  define GTEST_DISABLE_CLANG_WARNINGS_POP_()
+# endif
 #else
 // Older versions of MSVC don't have __pragma.
 # define GTEST_DISABLE_MSC_WARNINGS_PUSH_(warnings)
 # define GTEST_DISABLE_MSC_WARNINGS_POP_()
+# define GTEST_DISABLE_CLANG_DEPRECATED_WARNINGS_PUSH_()
+# define GTEST_DISABLE_CLANG_WARNINGS_POP_()
 #endif
 
 #ifndef GTEST_LANG_CXX11
@@ -2352,6 +2364,7 @@ inline bool IsDir(const StatStruct& st) { return S_ISDIR(st.st_mode); }
 // Functions deprecated by MSVC 8.0.
 
 GTEST_DISABLE_MSC_WARNINGS_PUSH_(4996 /* deprecated function */)
+GTEST_DISABLE_CLANG_DEPRECATED_WARNINGS_PUSH_()
 
 inline const char* StrNCpy(char* dest, const char* src, size_t n) {
   return strncpy(dest, src, n);
@@ -2399,6 +2412,7 @@ inline const char* GetEnv(const char* name) {
 #endif
 }
 
+GTEST_DISABLE_CLANG_WARNINGS_POP_()
 GTEST_DISABLE_MSC_WARNINGS_POP_()
 
 #if GTEST_OS_WINDOWS_MOBILE

contrib/gtest/src/gtest-port.cc

@@ -926,7 +926,7 @@ GTestLog::~GTestLog() {
 // Disable Microsoft deprecation warnings for POSIX functions called from
 // this class (creat, dup, dup2, and close)
 GTEST_DISABLE_MSC_WARNINGS_PUSH_(4996)
-
+GTEST_DISABLE_CLANG_DEPRECATED_WARNINGS_PUSH_()
 #if GTEST_HAS_STREAM_REDIRECTION
 
 // Object that captures an output stream (stdout/stderr).
@@ -1010,6 +1010,7 @@ class CapturedStream {
 };
 
 GTEST_DISABLE_MSC_WARNINGS_POP_()
+GTEST_DISABLE_CLANG_WARNINGS_POP_()
 
 static CapturedStream* g_captured_stderr = NULL;
 static CapturedStream* g_captured_stdout = NULL;

contrib/rapidjson/include/rapidjson/document.h

@@ -31,7 +31,7 @@
 #include <limits>
 
 RAPIDJSON_DIAG_PUSH
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && !(__clang__)
 RAPIDJSON_DIAG_OFF(4127) // conditional expression is constant
 RAPIDJSON_DIAG_OFF(4244) // conversion from kXxxFlags to 'uint16_t', possible loss of data
 #endif

contrib/rapidjson/include/rapidjson/encodings.h

@@ -17,7 +17,7 @@
 
 #include "rapidjson.h"
 
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && !defined(__clang__)
 RAPIDJSON_DIAG_PUSH
 RAPIDJSON_DIAG_OFF(4244) // conversion from 'type1' to 'type2', possible loss of data
 RAPIDJSON_DIAG_OFF(4702)  // unreachable code
@@ -709,7 +709,7 @@ struct Transcoder<Encoding, Encoding> {
 
 RAPIDJSON_NAMESPACE_END
 
-#if defined(__GNUC__) || defined(_MSC_VER)
+#if defined(__GNUC__) || (defined(_MSC_VER) && !defined(__clang__))
 RAPIDJSON_DIAG_POP
 #endif
 

contrib/rapidjson/include/rapidjson/internal/meta.h

@@ -21,7 +21,7 @@
 RAPIDJSON_DIAG_PUSH
 RAPIDJSON_DIAG_OFF(effc++)
 #endif
-#if defined(_MSC_VER)
+#if defined(_MSC_VER) && !defined(__clang__)
 RAPIDJSON_DIAG_PUSH
 RAPIDJSON_DIAG_OFF(6334)
 #endif
@@ -174,7 +174,7 @@ template <typename T> struct RemoveSfinaeTag<SfinaeTag&(*)(T)> { typedef T Type;
 RAPIDJSON_NAMESPACE_END
 //@endcond
 
-#if defined(__GNUC__) || defined(_MSC_VER)
+#if defined(__GNUC__) || (defined(_MSC_VER) && !defined(__clang__))
 RAPIDJSON_DIAG_POP
 #endif
 

contrib/rapidjson/include/rapidjson/reader.h

@@ -37,7 +37,7 @@
 #include <arm_neon.h>
 #endif
 
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && !defined(__clang__)
 RAPIDJSON_DIAG_PUSH
 RAPIDJSON_DIAG_OFF(4127)  // conditional expression is constant
 RAPIDJSON_DIAG_OFF(4702)  // unreachable code
@@ -2214,7 +2214,7 @@ RAPIDJSON_DIAG_POP
 RAPIDJSON_DIAG_POP
 #endif
 
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && !defined(__clang__)
 RAPIDJSON_DIAG_POP
 #endif
 

contrib/rapidjson/include/rapidjson/writer.h

@@ -36,7 +36,7 @@
 #include <arm_neon.h>
 #endif
 
-#ifdef _MSC_VER
+#if defined (_MSC_VER) && !defined(__clang__)
 RAPIDJSON_DIAG_PUSH
 RAPIDJSON_DIAG_OFF(4127) // conditional expression is constant
 #endif
@@ -700,11 +700,11 @@ inline bool Writer<StringBuffer>::ScanWriteUnescapedString(StringStream& is, siz
 
 RAPIDJSON_NAMESPACE_END
 
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && !defined(__clang__)
 RAPIDJSON_DIAG_POP
 #endif
 
-#ifdef __clang__
+#if defined(__clang__)
 RAPIDJSON_DIAG_POP
 #endif
 

contrib/unzip/ioapi.c

@@ -16,6 +16,10 @@
 #ifdef _WIN32
 #    pragma warning(push)
 #    pragma warning(disable : 4131 4100)
+#    ifdef __clang__
+#    pragma clang diagnostic push
+#    pragma clang diagnostic ignored "-Wunused-parameter"
+#    endif
 #endif // _WIN32
 
 /* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */
@@ -181,4 +185,7 @@ void fill_fopen_filefunc (pzlib_filefunc_def)
 
 #ifdef _WIN32
 #    pragma warning(pop)
+#    ifdef __clang__
+#        pragma clang diagnostic pop
+#    endif
 #endif // _WIN32

contrib/unzip/ioapi.h

@@ -24,7 +24,7 @@
 
 #ifndef ZCALLBACK
 
-#if (defined(WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
+#if (defined(_WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
 #define ZCALLBACK CALLBACK
 #else
 #define ZCALLBACK

contrib/unzip/unzip.c

@@ -1554,7 +1554,6 @@ extern int ZEXPORT unzGetGlobalComment (file, szComment, uSizeBuf)
     char *szComment;
     uLong uSizeBuf;
 {
-    int err=UNZ_OK;
     unz_s* s;
     uLong uReadThis ;
     if (file==NULL)

contrib/zip/src/miniz.h

@@ -5361,7 +5361,7 @@ mz_bool mz_zip_reader_extract_to_mem_no_alloc(mz_zip_archive *pZip,
   } else {
     // Temporarily allocate a read buffer.
     read_buf_size = MZ_MIN(file_stat.m_comp_size, MZ_ZIP_MAX_IO_BUF_SIZE);
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && !defined(__clang__)
     if (((0, sizeof(size_t) == sizeof(mz_uint32))) &&
         (read_buf_size > 0x7FFFFFFF))
 #else
@@ -5454,7 +5454,7 @@ void *mz_zip_reader_extract_to_heap(mz_zip_archive *pZip, mz_uint file_index,
   uncomp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS);
 
   alloc_size = (flags & MZ_ZIP_FLAG_COMPRESSED_DATA) ? comp_size : uncomp_size;
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && !defined(__clang__)
   if (((0, sizeof(size_t) == sizeof(mz_uint32))) && (alloc_size > 0x7FFFFFFF))
 #else
   if (((sizeof(size_t) == sizeof(mz_uint32))) && (alloc_size > 0x7FFFFFFF))
@@ -5560,7 +5560,7 @@ mz_bool mz_zip_reader_extract_to_callback(mz_zip_archive *pZip,
   if ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!file_stat.m_method)) {
     // The file is stored or the caller has requested the compressed data.
     if (pZip->m_pState->m_pMem) {
-#ifdef _MSC_VER
+#if defined (_MSC_VER) && !defined(__clang__)
       if (((0, sizeof(size_t) == sizeof(mz_uint32))) &&
           (file_stat.m_comp_size > 0xFFFFFFFF))
 #else

include/assimp/Compiler/poppack1.h

@@ -14,7 +14,7 @@
 #endif
 
 // reset packing to the original value
-#if defined(_MSC_VER) ||  defined(__BORLANDC__) || defined (__BCPLUSPLUS__)
+#if (defined(_MSC_VER) && !defined(__clang__)) ||  defined(__BORLANDC__) || defined (__BCPLUSPLUS__)
 #	pragma pack( pop )
 #endif
 #undef PACK_STRUCT

include/assimp/Compiler/pushpack1.h

@@ -22,7 +22,7 @@
 #	error poppack1.h must be included after pushpack1.h
 #endif
 
-#if defined(_MSC_VER) ||  defined(__BORLANDC__) ||	defined (__BCPLUSPLUS__)
+#if (defined(_MSC_VER) && !defined(__clang__)) ||  defined(__BORLANDC__) ||	defined (__BCPLUSPLUS__)
 #	pragma pack(push,1)
 #	define PACK_STRUCT
 #elif defined( __GNUC__ ) || defined(__clang__)

test/unit/UnitTestFileGenerator.h

@@ -44,21 +44,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <cstdlib>
 #include <gtest/gtest.h>
 
-#if defined(__GNUC__) || defined(__clang__)
+#if defined(_MSC_VER)
-#define TMP_PATH "/tmp/"
-inline FILE* MakeTmpFile(char* tmplate)
-{
-    auto fd = mkstemp(tmplate);
-    EXPECT_NE(-1, fd);
-    if(fd == -1)
-    {
-        return nullptr;
-    }
-    auto fs = fdopen(fd, "w+");
-    EXPECT_NE(nullptr, fs);
-    return fs;
-}
-#elif defined(_MSC_VER)
 #include <io.h>
 #define TMP_PATH "./"
 inline FILE* MakeTmpFile(char* tmplate)
@@ -73,4 +59,18 @@ inline FILE* MakeTmpFile(char* tmplate)
     EXPECT_NE(fs, nullptr);
     return fs;
 }
+#elif defined(__GNUC__) || defined(__clang__)
+#define TMP_PATH "/tmp/"
+inline FILE* MakeTmpFile(char* tmplate)
+{
+    auto fd = mkstemp(tmplate);
+    EXPECT_NE(-1, fd);
+    if(fd == -1)
+    {
+        return nullptr;
+    }
+    auto fs = fdopen(fd, "w+");
+    EXPECT_NE(nullptr, fs);
+    return fs;
+}
 #endif

test/unit/utColladaImportExport.cpp

@@ -157,7 +157,6 @@ public:
 
     static inline void CheckNodeIdNames(IdNameMap &nodeIdMap, IdNameMap &nodeNameMap, const aiNode *parent, size_t index) {
         IdNameString namePair = GetItemIdName(parent, index);
-        const auto result = nodeNameMap.insert(namePair);
         IdNameString idPair = GetColladaIdName(parent, index);
         ReportDuplicate(nodeIdMap, idPair, typeid(aiNode).name());