Hi all, I originally posted these messages to gcc-help, but had no reply, so I am re-posting links to them here.
I think I have found a bug in g++ 4.0.0, but need help in reporting it. Maintainers like their bug reports to include short test cases, but I don't know how to generate a short test case involving inlining. I discovered the original problem by compiling GluCat ( http://glucat.sf.net ) and the preprocessor output from a short GluCat test program contains over 66 000 lines of libstdc++, uBLAS and Glucat code. Can anyone help, or should I just file a bug report using the huge test case? The original posts were: g++ 4.0.0: hash_map hangs when compiled with -O3 on AMD64 http://gcc.gnu.org/ml/gcc-help/2005-05/msg00030.html Re: g++ 4.0.0: hash_map hangs when compiled with -O3 on AMD64 http://gcc.gnu.org/ml/gcc-help/2005-05/msg00087.html I am particularly interested in the interference between hash_map, -fstrict-aliasing and -finline-functions, and I wonder if it happens on other architectures, or only on AMD64. Best regards, Paul Leopardi PS. If you try compling the current GluCat 0.1.8 using g++ 4.0.0, you will need the following patch. diff -u /home/leopardi/src/glucat/glucat-0.1.8/glucat/portability.h ./portability.h --- /home/leopardi/src/glucat/glucat-0.1.8/glucat/portability.h 2004-05-10 21:28:42.000000000 +1000 +++ ./portability.h 2005-05-01 22:11:22.000000000 +1000 @@ -28,15 +28,15 @@ #define ios_base ios // scope is different for standard C++ #endif -//***************************** workaround for ICC and G++ 3.3+ -#if defined (__ICL) || defined (__ICC) || defined (__GNUG__) && (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 3) +//***************************** workaround for ICC, G++ 3.3+, G++ 4.0+ +#if defined (__ICL) || defined (__ICC) || defined (__GNUG__) && ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3) || (__GNUC__ == 4)) #define _GLUCAT_PRIVATE public #else #define _GLUCAT_PRIVATE private #endif //***************************** workaround for G++ 3.2 typename bug -#if defined (__GNUG__) && (__GNUC__ >= 3) && (__GNUC_MINOR__ <= 2) +#if defined (__GNUG__) && (__GNUC__ == 3) && (__GNUC_MINOR__ <= 2) #define _GLUCAT_USE_STRUCT_NAME(T) #else #define _GLUCAT_USE_STRUCT_NAME(T) T::
