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Jakob Stoklund Olesen d7648ff20f Add a division operator to BlockFrequency. 
Allow a BlockFrequency to be divided by a non-zero BranchProbability
with saturating arithmetic. This will be used to compute the frequency
of a loop header given the probability of leaving the loop.

Our long division algorithm already saturates on overflow, so that was a
freebie.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185184 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-28 18:23:42 +00:00
..
llvm Add a division operator to BlockFrequency. 2013-06-28 18:23:42 +00:00
llvm-c Add a new function attribute 'cold' to functions. 2013-05-24 12:26:52 +00:00