[Bug gold/19842] LTO build fails to write call address for weak symbol reference

[matt at godbolt dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=19842

--- Comment #6 from Matt Godbolt <matt at godbolt dot org> ---
I just tried with a snapshot build of GCC I had around (6.0.0 20160221), and
the problem persists:

Dump of assembler code for function std::_List_node<std::function<void ()>
>::~_List_node():
   0x000000000077434c <+0>:     push   %rbp
   0x000000000077434d <+1>:     mov    %rsp,%rbp
   0x0000000000774350 <+4>:     sub    $0x10,%rsp
   0x0000000000774354 <+8>:     mov    %rdi,-0x8(%rbp)
   0x0000000000774358 <+12>:    mov    -0x8(%rbp),%rax
   0x000000000077435c <+16>:    add    $0x10,%rax
   0x0000000000774360 <+20>:    mov    %rax,%rdi
   0x0000000000774363 <+23>:    callq  0x0
   0x0000000000774368 <+28>:    nop
   0x0000000000774369 <+29>:    leaveq 
   0x000000000077436a <+30>:    retq   
End of assembler dump.

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