[Bug target/38598] MIPS extendsidi2 does not have a LO alternative

[rsandifo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38598

--- Comment #4 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> 2011-02-26 11:44:14 UTC ---
Oops, thanks for the prod.  The curse of doing stuff during
the wrong development stage.  I'll commit it once 4.7 opens.