https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66381
Bug ID: 66381 Summary: ice in dfs_enumerate_from with -O3 Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: dcb314 at hotmail dot com Target Milestone: --- Created attachment 35677 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35677&action=edit C++ source code For trunk gcc dated 20150530 Cue2Toc.cc: In function ‘cuesheet* read_cue(const char*, const char*)’: Cue2Toc.cc:298:1: internal compiler error: in dfs_enumerate_from, at cfganal.c:1195 0x8dc305 dfs_enumerate_from(basic_block_def*, int, bool (*)(basic_block_def const*, void const*), basic_block_def**, int, void const*) ../../src/trunk/gcc/cfganal.c:1195 0xfabaa0 determine_bb_domination_status ../../src/trunk/gcc/tree-ssa-threadupdate.c:1768 0xfabaa0 thread_through_loop_header ../../src/trunk/gcc/tree-ssa-threadupdate.c:1953 0xfae22a thread_through_all_blocks(bool) ../../src/trunk/gcc/tree-ssa-threadupdate.c:2667 0xee203b execute ../../src/trunk/gcc/tree-ssa-dom.c:1244 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. Flag -O3 required.