[Bug debug/90197] [8/9/10 Regression] Cannot step through simple loop at -O -g

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90197

--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri May 17 19:52:06 2019
New Revision: 271353

URL: https://gcc.gnu.org/viewcvs?rev=271353&root=gcc&view=rev
Log:
        Backported from mainline
        2019-05-15  Jakub Jelinek  <ja...@redhat.com>

        PR debug/90197
        * cp-gimplify.c (genericize_cp_loop): Emit a DEBUG_BEGIN_STMT
        before the condition (or if missing or constant non-zero at the end
        of the loop.  Emit a DEBUG_BEGIN_STMT before the increment expression
        if any.  Don't call protected_set_expr_location on incr if it already
        has a location.

Modified:
    branches/gcc-9-branch/gcc/cp/ChangeLog
    branches/gcc-9-branch/gcc/cp/cp-gimplify.c