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[Bug tree-optimization/81620] [8 Regression] ICE in is_inv_store_elimination_chain, at tree-predcom.c:1651 with -O3
- From: "amker at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 01 Aug 2017 09:18:01 +0000
- Subject: [Bug tree-optimization/81620] [8 Regression] ICE in is_inv_store_elimination_chain, at tree-predcom.c:1651 with -O3
- Auto-submitted: auto-generated
- References: <bug-81620-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81620
--- Comment #3 from amker at gcc dot gnu.org ---
Author: amker
Date: Tue Aug 1 09:17:29 2017
New Revision: 250763
URL: https://gcc.gnu.org/viewcvs?rev=250763&root=gcc&view=rev
Log:
PR tree-optimization/81620
* tree-predcom.c (add_ref_to_chain): Don't set has_max_use_after
for store-store chain.
gcc/testsuite
* gcc.dg/tree-ssa/pr81620-1.c: New.
* gcc.dg/tree-ssa/pr81620-2.c: New.
Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/pr81620-1.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/pr81620-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-predcom.c