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The testcase hit an ICE trying to expand a TARGET_EXPR temporary cached from the other lambda-expression. This patch fixes this in two ways: 1) Avoid reusing a TARGET_EXPR from another function. 2) Avoid ending up with a TARGET_EXPR at all; the use of 'p' had become <TARGET_EXPR<NON_LVALUE_EXPR<TARGET_EXPR ...>>>, which doesn't make any sense. gcc/cp/ChangeLog 2020-04-04 Jason Merrill <jason@redhat.com> PR c++/94453 * constexpr.c (maybe_constant_value): Use break_out_target_exprs. * expr.c (mark_use) [VIEW_CONVERT_EXPR]: Don't wrap a TARGET_EXPR in NON_LVALUE_EXPR.
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