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In 107897, by the time we are looking at the mangling clash, the alias has already been removed from the symbol table by analyze_functions, so we can't look at n->cpp_implicit_alias. So just assume that it's an alias if it's internal. In 108887 the problem is that removing the mangling alias from the symbol table confuses analyze_functions, because it ended up as first_analyzed somehow, so it becomes a dangling pointer. So instead we call reset() to neutralize the alias. To make this work for variables, I needed to move reset() from cgraph_node to symtab_node. PR c++/107897 PR c++/108887 gcc/ChangeLog: * cgraph.h: Move reset() from cgraph_node to symtab_node. * cgraphunit.cc (symtab_node::reset): Adjust. Also call remove_from_same_comdat_group. gcc/cp/ChangeLog: * decl2.cc (record_mangling): Use symtab_node::reset. gcc/testsuite/ChangeLog: * g++.dg/cpp2a/concepts-lambda3.C: Use -flto if supported. * g++.dg/cpp0x/lambda/lambda-mangle7.C: New test. |
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