Andrew Trick 218ee74a01 Reapply "Make NumMicroOps a variable in the subtarget's instruction itinerary."
Reapplies r159406 with minor cleanup. The regressions appear to have been spurious.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159541 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02 18:10:42 +00:00
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