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| author | Martin Sebor <msebor@redhat.com> | 2018-08-28 19:09:38 +0000 |
|---|---|---|
| committer | Martin Sebor <msebor@gcc.gnu.org> | 2018-08-28 13:09:38 -0600 |
| commit | 0aaafa5e95df44eed3ad67ea65c9afda2dbdd493 (patch) | |
| tree | dbf4c33008642719c398d068222b45cd34a970c4 /gcc/calls.c | |
| parent | dd35da2cbef6d8bf9db86d7e66faeebb5022c881 (diff) | |
| download | gcc-0aaafa5e95df44eed3ad67ea65c9afda2dbdd493.zip gcc-0aaafa5e95df44eed3ad67ea65c9afda2dbdd493.tar.gz gcc-0aaafa5e95df44eed3ad67ea65c9afda2dbdd493.tar.bz2 | |
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.
From-SVN: r263928
Diffstat (limited to 'gcc/calls.c')
| -rw-r--r-- | gcc/calls.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/calls.c b/gcc/calls.c index 87e3f00..e9660b6 100644 --- a/gcc/calls.c +++ b/gcc/calls.c @@ -1222,8 +1222,11 @@ alloc_max_size (void) if (alloc_object_size_limit) return alloc_object_size_limit; - alloc_object_size_limit - = build_int_cst (size_type_node, warn_alloc_size_limit); + HOST_WIDE_INT limit = warn_alloc_size_limit; + if (limit == HOST_WIDE_INT_MAX) + limit = tree_to_shwi (TYPE_MAX_VALUE (ptrdiff_type_node)); + + alloc_object_size_limit = build_int_cst (size_type_node, limit); return alloc_object_size_limit; } |