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This patch builds over https://reviews.llvm.org/rL303349 and replaces the use of the condition only if it is safe to do so. We should not blindly RAUW the condition if experimental.guard or assume is a use of that condition. This is because LVI may have used the guard/assume to identify the value of the condition, and RUAWing will fold the guard/assume and uses before the guards/assumes. Reviewers: sanjoy, reames, trentxintong, mkazantsev Reviewed by: sanjoy, reames Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D33257 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303633 91177308-0d34-0410-b5e6-96231b3b80d8
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