FIX: C1001 Fatal Error in File Main.c, Line 413 for /O1 or /O2

   fatal error C1001: INTERNAL COMPILER ERROR
    (compiler file '\school.tp3\test\c10\src\P2\main.c', line 413)
					

MORE INFORMATION

The following code reproduces the error when compiled:

   // Compile option needed are: /GX, /W4, and /O1(minimize size)
   // or /O2 (maximize speed)
   struct A
   {
           ~A(){}
   };
   struct B
   {
           A       a;
   };
   void main(void)
   {
           try                     // line 17
           {
               B       *pB = new B[4];
               delete [] pB;  // line 20, warning C4702: unreachable code
           }
           catch(...)
           {
           }
   }
				

The following error message is generated: Compiling from command line with both /Og (global optimizations) and in-line function expansion, /Ob1(Only __inline) or /Ob2 (Any Suitable), reproduces the error. For instance, using:

   cl  /Og /Ob1 /GX /W4 test.cpp
				

Compiling with the following switch settings in command line does not produce errors:

   cl  /Og /GX /W4 test.cpp
				

- or -

   cl  /Ob1 /GX /W4 test.cpp
				

One workaround when using /O1 or /O2 in Developer Studio is to disable In-line function expansion (Build:Settings, C++ Tab, Optimizations category). Another workaround is to disable global optimizations. To accomplish this, choose Custom for the type of optimization (Build:Settings, C++ Tab, Optimizations category). Check all categories that apply, but do not check global optimizations. This behavior is similar to using the components of /O1 or /O2 and eliminating /Og). An additional method is to leave /O1 or /O2 intact and manually add /Og- to the Project Options.