http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45940
--- Comment #6 from Patrick Marlier <patrick.marlier at gmail dot com> 2010-11-25 09:57:32 UTC --- Created attachment 22526 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22526 another testcase It seems not completely solved. Here a another testcase. With -O0, it complains about unsafe function even if annotated as transaction_pure. gcc -Wall -c -O0 -fgnu-tm unsafe.cpp -o unsafe unsafe.cpp:38:54: error: unsafe function call ‘int atomic_exchange_and_add(int*, int)’ within ‘transaction_safe’ function With -O1, ICE in expand_block_tm(). gcc -Wall -c -O1 -fgnu-tm unsafe.cpp -o unsafe unsafe.cpp: In function ‘int main()’: unsafe.cpp:73:5: internal compiler error: in expand_block_tm, at trans-mem.c:2254 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. Vincent, please reopen the bug and in the bug description set version to "trans-mem" (easier to find it). Patrick Marlier.
