[Bug tree-optimization/68017] [6 Regression] ICE on valid code at -O3 with -g enabled on x86_64-linux-gnu: cannot update SSA form

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68017

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Oct 20 12:34:19 2015
New Revision: 229073

URL: https://gcc.gnu.org/viewcvs?rev=229073&root=gcc&view=rev
Log:
2015-10-20  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/68017
        * tree-tailcall.c (eliminate_tail_call): Remove stmts backwards.

        * gcc.dg/torture/pr68017.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr68017.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-tailcall.c