https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79809
--- Comment #8 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
I suppose the fix is then to
--- a/gcc/gimple-ssa-warn-alloca.c
+++ b/gcc/gimple-ssa-warn-alloca.c
@@ -78,7 +78,8 @@ pass_walloca::gate (function *fun ATTRIBUTE_UNUSED)
if (first_time_p)
return warn_alloca != 0;
- return warn_alloca_limit > 0 || warn_vla_limit > 0;
+ return ((unsigned HOST_WIDE_INT) warn_alloca_limit > 0
+ || (unsigned HOST_WIDE_INT) warn_vla_limit > 0);
}
// Possible problematic uses of alloca.
@@ -278,8 +279,8 @@ alloca_call_type (gimple *stmt, bool is_vla, tree
*invalid_casted_type)
wide_int min, max;
struct alloca_type_and_limit ret = alloca_type_and_limit (ALLOCA_UNBOUNDED);
- gcc_assert (!is_vla || warn_vla_limit > 0);
- gcc_assert (is_vla || warn_alloca_limit > 0);
+ gcc_assert (!is_vla || (unsigned HOST_WIDE_INT) warn_vla_limit > 0);
+ gcc_assert (is_vla || (unsigned HOST_WIDE_INT) warn_alloca_limit > 0);
// Adjust warn_alloca_max_size for VLAs, by taking the underlying
// type into account.
