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1b1172ad90
The code incorrectly inferred that the relationship of a constant expression to itself is FCMP_OEQ (ordered and equal), when it's actually FCMP_UEQ (unordered *or* equal). This change corrects that, and adds some more limited folds that can be done in this case. Differential revision: https://reviews.llvm.org/D51216 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@354381 91177308-0d34-0410-b5e6-96231b3b80d8