[Bug fortran/85631] [8/9 Regression] Runtime error message array bound mismatch with nonzero optimization

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85631

--- Comment #5 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Author: tkoenig
Date: Sat Jun  9 14:15:53 2018
New Revision: 261359

URL: https://gcc.gnu.org/viewcvs?rev=261359&root=gcc&view=rev
Log:
2018-06-09  Thomas Koenig  <tkoe...@gcc.gnu.org>

        PR fortran/85631
        Backport from trunk.
        * trans.h (gfc_ss): Add field no_bounds_check.
        * trans-array.c (gfc_conv_ss_startstride): If flag_realloc_lhs and
        ss->no_bounds_check is set, do not use runtime checks.
        * trans-expr.c (gfc_trans_assignment_1): Set lss->no_bounds_check
        for reallocatable lhs.

2018-06-09  Thomas Koenig  <tkoe...@gcc.gnu.org>

        PR fortran/85631
        Backport from trunk.
        * gfortran.dg/bounds_check_20.f90: New test.


Added:
    branches/gcc-8-branch/gcc/testsuite/gfortran.dg/bounds_check_20.f90
Modified:
    branches/gcc-8-branch/gcc/fortran/ChangeLog
    branches/gcc-8-branch/gcc/fortran/trans-array.c
    branches/gcc-8-branch/gcc/fortran/trans-expr.c
    branches/gcc-8-branch/gcc/fortran/trans.h
    branches/gcc-8-branch/gcc/testsuite/ChangeLog