[Bug middle-end/86631] [9 Regression] missing -Walloc-size-larger-than on ILP32 hosts

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86631

--- Comment #7 from Martin Sebor <msebor at gcc dot gnu.org> ---
Author: msebor
Date: Tue Aug 28 19:09:38 2018
New Revision: 263928

URL: https://gcc.gnu.org/viewcvs?rev=263928&root=gcc&view=rev
Log:
PR middle-end/86631 - missing -Walloc-size-larger-than on ILP32 hosts

gcc/ChangeLog:

        PR middle-end/86631
        * calls.c (alloc_max_size): Treat HOST_WIDE_INT special.
        * gimple-ssa-warn-alloca.c (adjusted_warn_limit): New function.
        (pass_walloca::gate): Use it.
        (alloca_call_type): Same.
        (pass_walloca::execute): Same.
        * stor-layout.c (layout_decl): Treat HOST_WIDE_INT special.

gcc/testsuite/ChangeLog:

        PR middle-end/86631
        * g++.dg/Walloca1.C: Adjust.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/calls.c
    trunk/gcc/gimple-ssa-warn-alloca.c
    trunk/gcc/stor-layout.c
    trunk/gcc/testsuite/g++.dg/Walloca1.C