http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55194
--- Comment #2 from Joel Sherrill <joel at gcc dot gnu.org> 2012-11-04 06:20:02 UTC --- git bisect should help: [0e797c2e325bfe0676fc9b9e5baee01aefb164f5] /cp 2012-08-20 Paolo Carlini <paolo.carl...@oracle.com> [joel@baltimore gcc]$ git bisect good Bisecting: 1 revision left to test after this (roughly 1 step) [29b2949ccfc068c78899358ca40218f3518b00dd] PR rtl-optimization/54294 * fwprop.c (all_uses_available_at): Ignore debug insns in between def_insn and target_insn when checking whether the shortcut is possible. [joel@baltimore gcc]$ git bisect good Bisecting: 0 revisions left to test after this (roughly 0 steps) [2bf99680c2012de150798c933642aa4c82a85410] 2012-08-20 Tobias Burnus <bur...@net-b.de>
