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[Bug target/81766] [7/8 Regression] ICE in maybe_add_or_update_dep_1, at sched-deps.c:924 caused by r250815
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 08 Aug 2017 12:25:44 +0000
- Subject: [Bug target/81766] [7/8 Regression] ICE in maybe_add_or_update_dep_1, at sched-deps.c:924 caused by r250815
- Auto-submitted: auto-generated
- References: <bug-81766-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81766
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #3)
> find_bb_boundaries doesn't seem to expect existing NOTE_INSN_BASIC_BLOCK, so
> calling it on existing blocks exposes un-optimalities in case labels are
> valid after NOTE_INSN_BASIC_BLOCK.
Another possibility is to use NOTE_INSN_DELETED_LABEL instead of CODE_LABEL,
after all, we aren't jumping to it. Let me try it now.