[Bug tree-optimization/97627] [9 Regression] loop end condition missing - endless loop with -fPIC

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97627

--- Comment #16 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by Richard Biener
<rgue...@gcc.gnu.org>:

https://gcc.gnu.org/g:a7e6e7a9299208e5aa3d805d502370d59f92b8b5

commit r9-9211-ga7e6e7a9299208e5aa3d805d502370d59f92b8b5
Author: Richard Biener <rguent...@suse.de>
Date:   Fri Jan 29 11:17:42 2021 +0100

    tree-optimization/97627 - Avoid computing niters for fake edges

    This avoids computing niters information for fake edges.

    2021-01-29  Bin Cheng  <bin.ch...@linux.alibaba.com>
                Richard Biener  <rguent...@suse.de>

            PR tree-optimization/97627
            * tree-ssa-loop-niter.c (number_of_iterations_exit_assumptions):
            Do not analyze fake edges.

            * g++.dg/pr97627.C: New testcase.

    (cherry picked from commit 3976b2701b826569ffcd90877d94095def507e3f)