[Bug lto/47259] LTO and global register variable

[d.g.gorbachev at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47259

--- Comment #3 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2011-01-12 13:10:07 UTC ---
For example, linux uses global reg var "esp". As there is no need to reserve
this register, can GCC accept it?