[ARM] fix initialization of PredictableSelectIsExpensive

Summary:
If we want classify OoO or not, using getSchedModel().isOutOfOrder()
could be more proper way than using Subtarget->isLikeA9().

Reviewers: jmolloy, rengolin

Differential Revision: http://reviews.llvm.org/D17433


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@261623 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed