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[Bug tree-optimization/83238] [8 Regression] [graphite] ICE in graphite_can_represent_scev, at graphite-scop-detection.c:971
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 01 Dec 2017 14:37:17 +0000
- Subject: [Bug tree-optimization/83238] [8 Regression] [graphite] ICE in graphite_can_represent_scev, at graphite-scop-detection.c:971
- Auto-submitted: auto-generated
- References: <bug-83238-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83238
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2017-12-01
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
Target Milestone|--- |8.0
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Mine. Some SCEV analysis issue. The SESE region starts with loop A exit
and ends with the edge to the latch of a sibling B loop of A. Somehow
SCEV instantiation thinks B is contained in the SESE region.