[Bug rtl-optimization/57100] [4.8/4.9 Regression] ICE: in pre_and_rev_post_order_compute, at cfganal.c:869 with -fdump-rtl-pro_and_epilogue-graph
rguenth at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Mon Apr 29 08:12:00 GMT 2013
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57100
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-04-29
CC| |rguenth at gcc dot gnu.org,
| |stevenb.gcc at gmail dot
| |com
Target Milestone|--- |4.8.1
Ever Confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> 2013-04-29 08:12:18 UTC ---
Well, you cannot reliably dump graphs at each point in the pass pipeline
in case there are unreachable blocks in the CFG ...
I also routinely hit ICEs in the graph dumping when dumping broken loop
trees (for debugging).
I think we eventually want a custom CFG collecting routine in graph.c
that is not prone to such issues (but just gives up and appends the
rest of the BBs unsorted).
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