[Bug go/80226] ICE gimple-expr.c:474 on Go function returning multiple empty struct/array values

[thanm at google dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80226

--- Comment #1 from Than McIntosh <thanm at google dot com> ---

This seems to do the trick:

diff --git a/gcc/go/go-gcc.cc b/gcc/go/go-gcc.cc
index ed6fc2c6105..62baa91fab8 100644
--- a/gcc/go/go-gcc.cc
+++ b/gcc/go/go-gcc.cc
@@ -2081,7 +2081,8 @@ Gcc_backend::return_statement(Bfunction* bfunction,
   // If the result size is zero bytes, we have set the function type
   // to have a result type of void, so don't return anything.
   // See the function_type method.
-  if (int_size_in_bytes(TREE_TYPE(result)) == 0)
+  tree res_type = TREE_TYPE(result);
+  if (res_type == void_type_node || int_size_in_bytes(res_type) == 0)
     {
       tree stmt_list = NULL_TREE;
       for (std::vector<Bexpression*>::const_iterator p = vals.begin();