[aot] Fix an assert which is hit for generic instances with a lot of arguments. ...

The c# compiler generates these for anonymous types.

Fixes https://github.com/xamarin/xamarin-macios/issues/9289.

Co-authored-by: vargaz <vargaz@users.noreply.github.com>

diff --git a/src/mono/mono/mini/aot-compiler.c b/src/mono/mono/mini/aot-compiler.c
index 63f6d12..4cb352e 100644 (file)
--- a/src/mono/mono/mini/aot-compiler.c
+++ b/src/mono/mono/mini/aot-compiler.c
@@ -3424,12 +3424,14 @@ get_shared_ginst_ref (MonoAotCompile *acfg, MonoGenericInst *ginst)
        guint32 offset = GPOINTER_TO_UINT (g_hash_table_lookup (acfg->ginst_blob_hash, ginst));
        if (!offset) {
                guint8 *buf2, *p2;
+               int len;
 
-               buf2 = (guint8 *)g_malloc (1024);
+               len = 1024 + (ginst->type_argc * 32);
+               buf2 = (guint8 *)g_malloc (len);
                p2 = buf2;
 
                encode_ginst (acfg, ginst, p2, &p2);
-               g_assert (p2 - buf2 < 1024);
+               g_assert (p2 - buf2 < len);
 
                offset = add_to_blob (acfg, buf2, p2 - buf2);
                g_free (buf2);