Fix `lb_emit_array_epi` for matrix types

src/llvm_backend_utility.cpp

@@ -1168,7 +1168,7 @@ lbValue lb_emit_array_ep(lbProcedure *p, lbValue s, lbValue index) {
 	Type *t = s.type;
 	GB_ASSERT_MSG(is_type_pointer(t), "%s", type_to_string(t));
 	Type *st = base_type(type_deref(t));
-	GB_ASSERT_MSG(is_type_array(st) || is_type_enumerated_array(st), "%s", type_to_string(st));
+	GB_ASSERT_MSG(is_type_array(st) || is_type_enumerated_array(st) || is_type_matrix(st), "%s", type_to_string(st));
 	GB_ASSERT_MSG(is_type_integer(core_type(index.type)), "%s", type_to_string(index.type));
 
 	LLVMValueRef indices[2] = {};
@@ -1186,7 +1186,7 @@ lbValue lb_emit_array_epi(lbProcedure *p, lbValue s, isize index) {
 	Type *t = s.type;
 	GB_ASSERT(is_type_pointer(t));
 	Type *st = base_type(type_deref(t));
-	GB_ASSERT_MSG(is_type_array(st) || is_type_enumerated_array(st), "%s", type_to_string(st));
+	GB_ASSERT_MSG(is_type_array(st) || is_type_enumerated_array(st) || is_type_matrix(st), "%s", type_to_string(st));
 
 	GB_ASSERT(0 <= index);
 	Type *ptr = base_array_type(st);