User:Jonas

Apple gcc Objective-C code

gcc/objc/objc-act.c

• generate_protocols(): create meta-class info for referenced protocols
• encode_method_prototype(): toplevel function to create the parameter info ("i8@0:4\0" etc, objc_meth_var_types section)
• finish_objc(): generate all class metadata (rtti)

LLVM Clang Objective-C code

http://llvm.org/svn/llvm-project/cfe/trunk/lib/CodeGen/CGObjCMac.cpp

Exception handling

http://groups.google.com/group/llvm-dev/browse_thread/thread/ea4d79327b7e2c0a

GCC Gimple frontend

http://gcc.gnu.org/wiki/GimpleFrontEnd

Debug info

• Create debug info for "procedure xxx; external name 'yyy';"
• Dynamic arrays
  • Fortran support
  • More Fortran support
  • Treating nil pointer as empty
• Nested functions

LLVM

• don't use i1 for memory data: http://lists.llvm.org/pipermail/llvm-dev/2015-July/088645.html
• frontend performance tips: http://llvm.org/docs/Frontend/PerformanceTips.html