http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45475
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |lto Target| |i?86-*-* Status|REOPENED |NEW Component|lto |target Summary|target use in libcpp breaks |target attribute use in |LTO bootstrap |libcpp breaks LTO bootstrap --- Comment #16 from Richard Biener <rguenth at gcc dot gnu.org> 2012-10-17 09:34:14 UTC --- The attribute handling side is missing from the LTO frontend, but I wonder why handling the middle-end piece is not enough for it to work ... The target / optimize attributes seem to be designed in a weird way ... (ix86_valid_target_attribute_p does work besides checking whether the attribute is "valid"). I'm sure that's not how it was intended to work so I am calling this a target bug. This work should be done in the ix86_set_current_function hook.