https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60336
--- Comment #42 from H.J. Lu <hjl.tools at gmail dot com> --- (In reply to H.J. Lu from comment #29) > (In reply to Andrew Pinski from comment #27) > > Comment on attachment 36720 [details] > > A patch > > > > How does this interact with LTO where lang_hooks.decls.empty_record_p is not > > defined? > > We can stream out empty record info and use it to in lto_empty_record_p. There are 7 bits we can use for LTO: /* These flags are available for each language front end to use internally. */ #define TYPE_LANG_FLAG_0(NODE) (TYPE_CHECK (NODE)->type_common.lang_flag_0) #define TYPE_LANG_FLAG_1(NODE) (TYPE_CHECK (NODE)->type_common.lang_flag_1) #define TYPE_LANG_FLAG_2(NODE) (TYPE_CHECK (NODE)->type_common.lang_flag_2) #define TYPE_LANG_FLAG_3(NODE) (TYPE_CHECK (NODE)->type_common.lang_flag_3) #define TYPE_LANG_FLAG_4(NODE) (TYPE_CHECK (NODE)->type_common.lang_flag_4) #define TYPE_LANG_FLAG_5(NODE) (TYPE_CHECK (NODE)->type_common.lang_flag_5) #define TYPE_LANG_FLAG_6(NODE) (TYPE_CHECK (NODE)->type_common.lang_flag_6)
