[PATCH] D12603: Use fixed-point representation for BranchProbability

[Xinliang David Li via llvm-commits]

I think this can be done as a follow up patch -- having
BranchProbability derive from Ratio which is derived from FixedPoint
Rep.

David

On Wed, Sep 9, 2015 at 4:04 PM, Cong Hou <congh at google.com> wrote:
> congh added a comment.
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> In http://reviews.llvm.org/D12603#239967, @chapuni wrote:
>
>> Could we introduce fixed-point arithmetic class for general use?
>>  (It'd be not urgent)
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>
> Sorry for the late reply! Do we need such a class in LLVM? Except BlockMass, do we have other usages or demands of fixed-point class? If yes, it is not difficult to abstract such a class from the new BranchProbability in this patch.
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> http://reviews.llvm.org/D12603
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