1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/rtl.c b/gcc/rtl.c
index 035eadc..b0ba1ff 100644
--- a/gcc/rtl.c
+++ b/gcc/rtl.c
@@ -158,10 +158,13 @@ static size_t rtvec_alloc_sizes;
    Store the length, and initialize all elements to zero.  */
 
 rtvec
-rtvec_alloc (int n)
+rtvec_alloc (size_t n)
 {
   rtvec rt;
 
+  /* rtvec_def.num_elem is an int.  */
+  gcc_assert (n < INT_MAX);
+
   rt = ggc_alloc_rtvec_sized (n);
   /* Clear out the vector.  */
   memset (&rt->elem[0], 0, n * sizeof (rtx));