[Bug tree-optimization/81627] [8 Regression] ICE on valid code at -O3: in check_loop_closed_ssa_use, at tree-ssa-loop-manip.c:707

[aldyh at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81627

--- Comment #5 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
Author: aldyh
Date: Wed Sep 13 16:11:37 2017
New Revision: 252211

URL: https://gcc.gnu.org/viewcvs?rev=252211&root=gcc&view=rev
Log:
        PR tree-optimization/81627
        * tree-predcom.c (prepare_finalizers): Always rewrite into loop
        closed ssa form for store-store chain.

        gcc/testsuite
        * gcc.dg/tree-ssa/pr81627.c: New.

Added:
    branches/range-gen2/gcc/testsuite/gcc.dg/tree-ssa/pr81627.c
Modified:
    branches/range-gen2/gcc/ChangeLog
    branches/range-gen2/gcc/testsuite/ChangeLog
    branches/range-gen2/gcc/tree-predcom.c