--- Comment #13 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by Bin Cheng <am...@gcc.gnu.org>:
Author: Bin Cheng <bin.ch...@linux.alibaba.com>
Date: Tue Mar 24 17:40:21 2020 +0800
backport PR94125: Update post order number for merged SCC.
Function loop_distribution::break_alias_scc_partitions needs to compute
SCC with runtime alias edges skipped. As a result, partitions could be
re-assigned larger post order number than SCC's precedent partition and
distributed before the precedent one. This fixes the issue by updating
the merged partition to the minimal post order in SCC.
Backport from mainline.
(loop_distribution::break_alias_scc_partitions): Update post order
number for merged scc.
* gcc.dg/tree-ssa/pr94125.c: New test.