[Bug middle-end/88302] __gcov_indirect_call_profiler_v2 and first_run profiling can be cheaper with LTO

amonakov at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Mon Dec 3 10:41:00 GMT 2018


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88302

Alexander Monakov <amonakov at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |amonakov at gcc dot gnu.org

--- Comment #2 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
The way GCC exports internal API for plugins, all functions are externally
visible. Unless plugins are disabled, the linker receives -rdynamic and so all
non-static functions appear in the ELF dynamic table.

It's possible but complicated to solve this anyway by having two entrypoints
for direct and indirect calls.


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