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Ok with simply excluding SSA_NAMEs like
@@ -4411,16 +4411,27 @@ gimplify_modify_expr_rhs (tree *expr_p, /* It's OK to use the target directly if it's being initialized. */ use_target = true; - else if (TREE_CODE (*to_p) != SSA_NAME && ....) - /* Don't use the original target if it's already addressable; - if its address escapes, and the called function uses the - NRV optimization, a conforming program could see *to_p - change before the called function returns; see c++/19317. - When optimizing, the return_slot pass marks more functions - as safe after we have escape info. */ - use_target = false; - else - use_target = true;
as SSA_NAMEs can never become addressable during gimplification.
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