The attached preprocessed source ICEs with current g++ 4.3 : ../../include/CGAL/Visibility_complex_2/Antichain.h:1394: internal compiler error: Bus error I really believe the code is valid, as it works with older g++ releases (although the preprocessed code attached does not, but it is due to library changes). I quickly tried to extract a reduced test case but failed, and prefer to submit a report soon.
Created attachment 14819 [details] pre-processed test case
The backtrace: #0 0x00dec6b0 in htab_find_with_hash (htab=0x0, element=0x546c9a0, hash=11065652) at /Users/apinski/src/local/gcc/libiberty/hashtab.c:566 #1 0x00080f13 in retrieve_local_specialization (tmpl=0x546c9a0) at /Users/apinski/src/local/gcc/gcc/cp/pt.c:980 #2 0x000c71f7 in tsubst (t=0x546ca10, args=0x64ca580, complain=tf_warning_or_error, in_decl=0x547a120) at /Users/apinski/src/local/gcc/gcc/cp/pt.c:8824 #3 0x000c732a in tsubst (t=0x5478540, args=0x64ca580, complain=tf_warning_or_error, in_decl=0x547a120) at /Users/apinski/src/local/gcc/gcc/cp/pt.c:8844 #4 0x000c299e in tsubst_decl (t=0x547a120, args=0x64ca580, complain=tf_warning_or_error) at /Users/apinski/src/local/gcc/gcc/cp/pt.c:8224 #5 0x000c6882 in tsubst (t=0x547a120, args=0x64ca580, complain=tf_warning_or_error, in_decl=0x547a120) at /Users/apinski/src/local/gcc/gcc/cp/pt.c:8799 #6 0x000c318b in tsubst_decl (t=0x547a300, args=0x64ca580, complain=tf_warning_or_error) at /Users/apinski/src/local/gcc/gcc/cp/pt.c:8260 #7 0x000c6882 in tsubst (t=0x547a300, args=0x64ca580, complain=tf_warning_or_error, in_decl=0x64cb000) at /Users/apinski/src/local/gcc/gcc/cp/pt.c:8799 #8 0x001026e1 in instantiate_decl (d=0x64cb000, defer_ok=0, expl_inst_class_mem_p=0 '\0') at /Users/apinski/src/local/gcc/gcc/cp/pt.c:14786
Reduced testcase: template < class Gtr_> void compute_gr() { typedef int Less_chain; struct utils { utils(const Less_chain& lc) {}; }; utils U(1); } int main(void){ compute_gr<int>(); }
Changing compute_gr to a non template, it works. Using int instead of the typedef, it also works.
Related to PR19407 I guess. CCing Jason.
Subject: Bug 34573 Author: jason Date: Tue Jan 22 14:48:05 2008 New Revision: 131724 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=131724 Log: PR c++/33959 * pt.c (tsubst_aggr_type): Make sure our context is complete. PR c++/34573 * pt.c (retrieve_local_specialization): Robustify. (tsubst_pack_expansion, tsubst_decl): Remove redundant checks. PR c++/34846 * pt.c (tsubst): Only call retrieve_local_specialization if the original typedef was in a function template. Added: trunk/gcc/testsuite/g++.dg/template/nested5.C trunk/gcc/testsuite/g++.dg/template/typedef10.C trunk/gcc/testsuite/g++.dg/template/typedef9.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/pt.c
Fixed.