[Bug rtl-optimization/86771] [9 Regression] gfortran.dg/actual_array_constructor_1.f90 fails on arm after combine 2 insns to 2 insns patch

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86771

--- Comment #23 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Author: segher
Date: Wed Sep 12 16:23:01 2018
New Revision: 264245

URL: https://gcc.gnu.org/viewcvs?rev=264245&root=gcc&view=rev
Log:
Backport PR86771 fix to 8

2018-09-12  Segher Boessenkool  <seg...@kernel.crashing.org>

        Backport from trunk
        2018-08-22  Segher Boessenkool  <seg...@kernel.crashing.org>

        PR rtl-optimization/86771
        * combine.c (try_combine): Do not allow splitting a resulting PARALLEL
        of two SETs into those two SETs, one to be placed at i2, if that SETs
        destination is modified between i2 and i3.

Modified:
    branches/gcc-8-branch/gcc/ChangeLog
    branches/gcc-8-branch/gcc/combine.c