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[Bug tree-optimization/81571] [8 Regression] ICE at -O3 in both 32-bit and 64-bit modes (internal compiler error: in as_a, at is-a.h:192)
- 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: Thu, 27 Jul 2017 13:45:27 +0000
- Subject: [Bug tree-optimization/81571] [8 Regression] ICE at -O3 in both 32-bit and 64-bit modes (internal compiler error: in as_a, at is-a.h:192)
- Auto-submitted: auto-generated
- References: <bug-81571-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81571
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Jul 27 13:44:51 2017
New Revision: 250626
URL: https://gcc.gnu.org/viewcvs?rev=250626&root=gcc&view=rev
Log:
2017-07-27 Richard Biener <rguenther@suse.de>
PR tree-optimization/81571
* tree-vect-slp.c (vect_build_slp_tree): Properly verify reduction
PHIs.
* gcc.dg/torture/pr81571.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr81571.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vect-slp.c