On Thu, Mar 26, 2015 at 2:11 AM, Jan Hubicka <hubi...@ucw.cz> wrote:
>> Hello!
>>
>> Attached patch introduces bootstrap-lto-noplugin bootstrap
>> configuration for hosts that do not support linker plugin (e.g. CentOS
>> 5.11 with binutils 2.17). Also, the patch adds some additional
>> documentation to bootstrap-lto option.
[...]
> Can you, please, add a note that without linker plugin the static libraries
> are
> not compiled with linktime optimization. Because GCC middle-end and backend is
> in libbackend.a it means that only (part of) the frontend is actually LTO
> optimized?
Thanks, I have added following text to the description:
--cut here--
@item @samp{bootstrap-lto-noplugin}
This option is similar to @code{bootstrap-lto}, but is intended for
-hosts that do not support the linker plugin.
+hosts that do not support the linker plugin. Please note that static
+libraries are not compiled with link time optimizations without
+linker plugin. Since GCC middle-end and back-end are in libbackend.a,
+it means that only part of the frontend is actually LTO optimized.
--cut here--
Uros.
