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[Bug rtl-optimization/50764] [4.7 Regression] ICE: in maybe_record_trace_start, at dwarf2cfi.c:2243 with -O2 -fsched2-use-superblocks -ftree-tail-merge
- From: "vries at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 29 Oct 2011 12:32:37 +0000
- Subject: [Bug rtl-optimization/50764] [4.7 Regression] ICE: in maybe_record_trace_start, at dwarf2cfi.c:2243 with -O2 -fsched2-use-superblocks -ftree-tail-merge
- Auto-submitted: auto-generated
- References: <bug-50764-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50764
--- Comment #8 from vries at gcc dot gnu.org 2011-10-29 12:32:37 UTC ---
> Using this patch, the dead label introduced by cfg_layout_finalize is removed:
To be more precise: Using this patch, the dead label introduced by
cfg_layout_finalize is removed before sched2 (in pass_reorder_blocks) rather
than after sched2 (in pass_duplicate_computed_gotos).