I'm in the process of merging ObjC 2.0 Apple stuff into gcc 4.3.0 for the
cocotron project; we build a cross-compiler to build Windows/Linux binaries
from Darwin.
In the progress we got an ICE when compiling any ObjC++ code that would cause
an __objc_gnu_init constructor to be emitted with optimizations:
"internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in setup_one_parameter, at tree-inline.c:
1535".
While trying to fix this problem, I noticed that
build_module_initializer_routine contains the line
objc_push_parm (build_decl (PARM_DECL, NULL_TREE, void_type_node));
Replacing this with
#ifdef OBJCPLUS
objc_push_parm (build_decl (PARM_DECL, NULL_TREE, ptr_type_node));
#else
objc_push_parm (build_decl (PARM_DECL, NULL_TREE, void_type_node));
#endif
fixed the problem.
I don't have the first idea on why; maybe this is just masking a deeper
problem. It certainly seems wrong somehow (the __objc_gnu_init should take a
void, shouldn't it?)...
Maybe someone with more knowledge on gcc stuff could shed a little light on
this?
--
Summary: wrong pointer type in build_module_initializer_routine?
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: objc++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: johannes dot fortmann at gmail dot com
GCC build triplet: i686-apple-darwin9
GCC host triplet: i686-apple-darwin9
GCC target triplet: i386-mingw32msvc
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35891
