[PATCH] D11241: Create a wrapper pass for BranchProbabilityInfo so that branch probability analysis can be done without requiring a pass.

[Duncan P. N. Exon Smith]

> On 2015-Jul-15, at 14:14, Cong Hou <congh at google.com> wrote:
> 
> congh created this revision.
> congh added a reviewer: dexonsmith.
> congh added subscribers: llvm-commits, davidxl.
> 
> This patch is similar to the one adding a wrapper to BlockFrequencyInfo. The patch creates a wrapper pass for BranchProbabilityInfo. This is useful when we want to do branch probability analysis conditionally (e.g. only in PGO mode) but don't want to add one more pass dependence.
> 
> http://reviews.llvm.org/D11241
> 
> Files:
>  include/llvm/Analysis/BranchProbabilityInfo.h
>  include/llvm/InitializePasses.h
>  lib/Analysis/Analysis.cpp
>  lib/Analysis/BlockFrequencyInfo.cpp
>  lib/Analysis/BranchProbabilityInfo.cpp
>  lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
>  lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp
> 
> <D11241.29829.patch>

LGTM.