[gcc 4.3.0] ICE compiling VA_LIST.cpp config test

• Key: STDCXX-1015
• Type: Bug
• Status: Open
• Priority: Critical
• Assignee: Martin Sebor
• Reporter: Martin Sebor
• Component/s: Configuration
• Affects Version/s: 4.2.1
• Fix Version/s: 4.2.2

Description

Both gcc 4.3.0 and 4.3.1 choke on the VA_LIST.cpp config test. A misconfigured va_list can't be good for the library... We should probably hardcode the expected value when _RWSTD_NO_VA_LIST is #defined (although we might already be doing it since we do have some good gcc 4.3.0 builds...)

The ICE has been filed with gcc in bug 37404.

gcc -D_RWSTDDEBUG -pthread -I. -pedantic -nostdinc++ -g   -W -Wall -Wcast-qual -Winline -Wshadow -Wwrite-strings -Wno-long-long -Wcast-align  -c /amd/devco/sebor/stdcxx-4.2.x/etc/config/src/VA_LIST.cpp -o VA_LIST.o
/amd/devco/sebor/stdcxx-4.2.x/etc/config/src/VA_LIST.cpp: In function 'int main()':
/amd/devco/sebor/stdcxx-4.2.x/etc/config/src/VA_LIST.cpp:198: warning: format '%u' expects type 'unsigned int', but argument 2 has type 'long unsigned int'
/amd/devco/sebor/stdcxx-4.2.x/etc/config/src/VA_LIST.cpp:202: warning: format '%u' expects type 'unsigned int', but argument 2 has type 'long unsigned int'
/amd/devco/sebor/stdcxx-4.2.x/etc/config/src/VA_LIST.cpp: In static member function 'static const char* Type<T [N]>::type_name() [with T = __va_list_tag, int N = 1]':
/amd/devco/sebor/stdcxx-4.2.x/etc/config/src/VA_LIST.cpp:96:   instantiated from here
/amd/devco/sebor/stdcxx-4.2.x/etc/config/src/VA_LIST.cpp:85: internal compiler error: in build_special_member_call, at cp/call.c:5323
Please submit a full bug report,with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Comments

[Martin Sebor]

The ICE occurs with all releases of gcc starting with 4.2, all the way to 4.4, but only on platforms where va_arg is an array (e.g., x86_64 and POWER).