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[Bug tree-optimization/78997] [7.0 regression] ICE on valid code at -O3 on x86_64-linux-gnu: verify_gimple failed
- From: "msebor at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 05 Jan 2017 02:35:21 +0000
- Subject: [Bug tree-optimization/78997] [7.0 regression] ICE on valid code at -O3 on x86_64-linux-gnu: verify_gimple failed
- Auto-submitted: auto-generated
- References: <bug-78997-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78997
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-01-05
CC| |msebor at gcc dot gnu.org
Summary|ICE on valid code at -O3 on |[7.0 regression] ICE on
|x86_64-linux-gnu: |valid code at -O3 on
|verify_gimple failed |x86_64-linux-gnu:
| |verify_gimple failed
Ever confirmed|0 |1
Known to fail| |7.0
--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
Confirmed with bisection pointing to r242872:
2016-11-24 Richard Biener <rguenther@suse.de>
PR tree-optimization/78343
* passes.def: Add CD-DCE pass after loop splitting.
* tree-ssa-dce.c (find_obviously_necessary_stmts): Move
SCEV init/finalize ...
(perform_tree_ssa_dce): ... here. Deal with being
executed inside the loop pipeline in aggressive mode.
* gcc.dg/tree-ssa/sccp-2.c: New testcase.
* gcc.dg/autopar/uns-outer-6.c: Adjust.
* gcc.dg/tree-ssa/20030808-1.c: Likewise.
* gcc.dg/tree-ssa/20040305-1.c: Likewise.
* gcc.dg/vect/pr38529.c: Likewise.