[Bug c++/93998] [10 Regression] ICE in adjust_temp_type, at cp/constexpr.c:1426

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93998

--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
It's the new

5452       /* Avoid evaluating a TARGET_EXPR more than once.  */
5453       if (tree *p = ctx->global->values.get (TARGET_EXPR_SLOT (t)))
5454         {
5455           if (lval)
5456             return TARGET_EXPR_SLOT (t);
5457           r = *p;
5458           break;
5459         }

hunk.  Before it, when op1 of the TARGET_EXPR was *non_constant_p, we returned
the whole TARGET_EXPR, now we return its op1 even when the evaluation would be
*non_constant_p.