[X86] Use cast instead of dyn_cast and a null check marked unreachable.
[oota-llvm.git] / lib / Target / X86 / README-MMX.txt
2009-02-22 Evan ChengAdd a note.
2008-02-14 Chris Lattnerthe mid-level optimizer removes this stuff.
2007-05-02 Bill WendlingUpdate.
2007-04-24 Bill WendlingUpdate.
2007-03-26 Bill WendlingUpdated.
2007-03-22 Bill WendlingSupport added for shifts and unpacking MMX instructions.