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/freebsd/contrib/llvm-project/llvm/lib/IR/
H A DDIExpressionOptimizer.cpp45 foldOperationIfPossible(uint64_t Const1, uint64_t Const2, in foldOperationIfPossible() argument
51 auto Result = SaturatingAdd(Const1, Const2, &ResultOverflowed); in foldOperationIfPossible()
57 if (Const1 < Const2) in foldOperationIfPossible()
59 return Const1 - Const2; in foldOperationIfPossible()
62 if (Const2 >= std::numeric_limits<uint64_t>::digits || in foldOperationIfPossible()
63 static_cast<uint64_t>(countl_zero(Const1)) < Const2) in foldOperationIfPossible()
65 return Const1 << Const2; in foldOperationIfPossible()
68 if (Const2 >= std::numeric_limits<uint64_t>::digits || in foldOperationIfPossible()
69 static_cast<uint64_t>(countr_zero(Const1)) < Const2) in foldOperationIfPossible()
71 return Const1 >> Const2; in foldOperationIfPossible()
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