2019-05-03 Jakub Jelinek PR tree-optimization/90303 * ipa-devirt.c (obj_type_ref_class, get_odr_type): Don't use TYPE_CANONICAL for TYPE_STRUCTURAL_EQUALITY_P types in !in_lto_p mode. * g++.target/i386/pr90303.C: New test. --- gcc/ipa-devirt.c (revision 270834) +++ gcc/ipa-devirt.c (revision 270835) @@ -2020,7 +2020,7 @@ obj_type_ref_class (const_tree ref) ref = TREE_VALUE (TYPE_ARG_TYPES (ref)); gcc_checking_assert (TREE_CODE (ref) == POINTER_TYPE); tree ret = TREE_TYPE (ref); - if (!in_lto_p) + if (!in_lto_p && !TYPE_STRUCTURAL_EQUALITY_P (ret)) ret = TYPE_CANONICAL (ret); else ret = get_odr_type (ret)->type; @@ -2042,7 +2042,7 @@ get_odr_type (tree type, bool insert) int base_id = -1; type = TYPE_MAIN_VARIANT (type); - if (!in_lto_p) + if (!in_lto_p && !TYPE_STRUCTURAL_EQUALITY_P (type)) type = TYPE_CANONICAL (type); gcc_checking_assert (can_be_name_hashed_p (type) --- gcc/testsuite/g++.target/i386/pr90303.C (nonexistent) +++ gcc/testsuite/g++.target/i386/pr90303.C (revision 270835) @@ -0,0 +1,8 @@ +// PR tree-optimization/90303 +// { dg-do compile { target ia32 } } +// { dg-additional-options "-O2" } + +struct A { virtual void foo (); }; +template class B : A {}; +typedef void (__attribute__((fastcall)) F) (); +B e;