https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102683
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot
gnu.org
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Otherwise the following would likely fix it:
diff --git a/gcc/internal-fn.c b/gcc/internal-fn.c
index 6bc256832f7..b3638192fb9 100644
--- a/gcc/internal-fn.c
+++ b/gcc/internal-fn.c
@@ -3074,7 +3074,9 @@ expand_DEFERRED_INIT (internal_fn, gcall *stmt)
tree init;
if (tree_fits_uhwi_p (var_size)
&& (init_type == AUTO_INIT_PATTERN
- || !is_gimple_reg_type (var_type)))
+ || !is_gimple_reg_type (var_type))
+ && int_mode_for_size (tree_to_uhwi (var_size) * BITS_PER_UNIT,
+ 0).exists ())
{
unsigned HOST_WIDE_INT total_bytes = tree_to_uhwi (var_size);
unsigned char *buf = (unsigned char *) xmalloc (total_bytes);
