953624089b
The following testcase ICEs (since the addition of inline var support), because the lambda contains PTRMEM_CST but finish_function is called for the lambda quite early during parsing it (from finish_lambda_function) when the containing class is still incomplete. That means that during genericization cplus_expand_constant keeps the PTRMEM_CST unmodified, but later nothing lowers it when the class is finalized. Using sizeof etc. on the class in such contexts is rejected by both g++ and clang++, and when the PTRMEM_CST appears e.g. in static var initializers rather than in functions, we handle it correctly because c_parse_final_cleanups -> lower_var_init will handle those cplus_expand_constant when all classes are already finalized. The following patch fixes it by calling cplus_expand_constant again during gimplification, as we are now unconditionally unit at a time, I'd think everything that could be completed will be before we start gimplification. 2021-03-30 Jakub Jelinek <jakub@redhat.com> PR c++/99790 * cp-gimplify.c (cp_gimplify_expr): Handle PTRMEM_CST. * g++.dg/cpp1z/pr99790.C: New test. |
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