https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63432
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> --- r215830 doesn't solve the problem. Now I got /export/project/git/gcc-regression/gcc/gcc/c/c-parser.c:3898:1: error: verify_flow_info: Wrong probability of edge 238->241 -1819341072 c_parser_attributes (c_parser *parser) ^ /export/project/git/gcc-regression/gcc/gcc/c/c-parser.c:3898:1: internal compiler error: verify_flow_info failed 0x6b2baa verify_flow_info() /export/project/git/gcc-regression/gcc/gcc/cfghooks.c:260 0xdd9bc7 cleanup_tree_cfg_noloop /export/project/git/gcc-regression/gcc/gcc/tree-cfgcleanup.c:765 0xdd9bc7 cleanup_tree_cfg() /export/project/git/gcc-regression/gcc/gcc/tree-cfgcleanup.c:814 0xbf2b04 execute_function_todo /export/project/git/gcc-regression/gcc/gcc/passes.c:1704 0xbff5b7 do_per_function /export/project/git/gcc-regression/gcc/gcc/passes.c:1478 0xbff5b7 execute_todo /export/project/git/gcc-regression/gcc/gcc/passes.c:1808 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions. make[4]: *** [/tmp/ccxbDLKp.ltrans2.ltrans.o] Error 1