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PR ipa/65610 * ipa-utils.h (inlined_polymorphic_ctor_dtor_block_p): Declare. * ipa-polymorphic-call.c (inlined_polymorphic_ctor_dtor_block_p): New function. (decl_maybe_in_construction_p, noncall_stmt_may_be_vtbl_ptr_store): Use it. * ipa-prop.c (param_type_may_change_p): Likewise. * tree-ssa-live.c: Include ipa-utils.h and its dependencies. (remove_unused_scope_block_p): Add in_ctor_dtor_block argument. Before inlining, preserve inlined_polymorphic_ctor_dtor_block_p blocks and the outermost block with FUNCTION_DECL BLOCK_ABSTRACT_ORIGIN inside of them. Adjust recursive calls. (remove_unused_locals): Adjust remove_unused_scope_block_p caller. * g++.dg/ubsan/pr65610.C: New test. From-SVN: r221781
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