[Bug tree-optimization/85168] [7/8 Regression] ICE in tree-ssa-coalesce.c: SSA corruption: Unable to coalesce ssa_names which are marked as MUST COALESCE when -O2 is used

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85168

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Apr  4 07:52:20 2018
New Revision: 259068

URL: https://gcc.gnu.org/viewcvs?rev=259068&root=gcc&view=rev
Log:
2018-04-04  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/85168
        * tree-ssa-sccvn.c (vn_reference_maybe_forwprop_address): Avoid
        propagating abnormals.

        * gcc.dg/torture/pr85168.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr85168.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-sccvn.c