http://sourceware.org/bugzilla/show_bug.cgi?id=13229
--- Comment #14 from Jan Hubicka <hubicka at gcc dot gnu.org> 2011-10-06
19:09:55 UTC ---
Hmm, reproducing the situation is harder with the COMDAT hack in your compiler.
Here is testcase that reproduces w/o GCC patch.
With BFD and patch for V2 API:
jh@evans:/abuild/jh/trunk-3/build-inst7/gcc> cat t.C
int call_something (int);
inline void optimize_me_out (void)
{
call_something(0);
}
__attribute__ ((visibility("hidden")))
int optimize_me_out2 (int param)
{
if ((void *)optimize_me_out != (void *)call_something)
return call_something(0);
}
void test2 (void)
{
optimize_me_out();
}
jh@evans:/abuild/jh/trunk-3/build-inst7/gcc> /abuild/jh/trunk-install/bin/g++
-O2 t.C --shared -fPIC -o t.so -flto -fuse-linker-plugin -fno-early-inlining
jh@evans:/abuild/jh/trunk-3/build-inst7/gcc> nm -D t.so |grep optimize
0000000000000000 W _Z15optimize_me_outv
With gold and V2 API:
jh@evans:/abuild/jh/trunk-3/build-inst7/gcc> /abuild/jh/trunk-install/bin/g++
-O2 t.C --shared -fPIC -o t.so -flto -fuse-linker-plugin -fno-early-inlining
jh@evans:/abuild/jh/trunk-3/build-inst7/gcc> nm -D t.so |grep optimize
jh@evans:/abuild/jh/trunk-3/build-inst7/gcc>
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