[Bug middle-end/46900] [4.6 Regression] 50% slowdown when linking with LTO in a single step

[d.g.gorbachev at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46900

--- Comment #7 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 
2010-12-17 12:13:54 UTC ---
> Thus, the "-march=native" somehow gets
> lost in the single-step compile.

PR42445 ?