[cfe-dev] Test suite additions request

[Philip Ashmore]

Hi there.

I'm writing this in the hope that my projects could find their way into 
some clang test suite.

I've got several packages in SourceForge: v3c, treedb, meta-treedb are 
the ones relevant here.
Each builds on the one before, a kind of software stack.

Because I'm (or rather gcc/g++ 4.6) is having problems,
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=630441
"g++-4.6 miscompilation", I've started to explore other compilers to 
find out more.

The first thing I noticed was that clang(++) isn't flag-for-flag 
compatible with gcc/g++ -
there's no -dD to list the preprocessor symbols hard-wired into the 
compiler.
I figured out from web pages that I could check for __clang__.

Next I noticed that clang(++) doesn't support __attribute__((ms_abi)), 
gcc's way of saying Pascal calling
convention, in which the callee pops the stack - I think my code is 
smaller and faster with it.

Next I noticed that clang doesn't understand "extern inline int fn() 
__attribute((always_inline));",
, followed by "extern inline int fn() { return 1; }" which means
"never put this function in an object file, always expand".

I think I've peeled the onion as far as I can when I encountered
"/usr/include/c++/4.5/exception_ptr.h:132:13: error: unknown type name 
'type_info'" after
"#include <typeinfo>".

I've found a few places where I need to make corrections already because 
of clang, and I'd be happy
to to-fro with someone to get (mainly meta-treedb) to build (it does, 
with corrections) and pass
"make check" (it doesn't, because of that typeinfo problem).

If this can help track down the gcc/g++ 4.6 problem, so much the better.

All my projects build/check fine with Debian gcc/g++ 4.4.6-8.

Regards,
Philip Ashmore