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[Bug tree-optimization/72772] Missed SCEV after pass reordering@236440
- 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: Wed, 03 Aug 2016 14:54:39 +0000
- Subject: [Bug tree-optimization/72772] Missed SCEV after pass reordering@236440
- Auto-submitted: auto-generated
- References: <bug-72772-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72772
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |law at gcc dot gnu.org
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Most of the fallout is doing more jump-threading. It looks like threading was
also confused by the extra degenerate PHIs.
The two ICEs are selective scheduling messing up the loop structure somehow.