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/llvm-project-15.0.7/llvm/lib/Transforms/InstCombine/
H A DInstCombineSelect.cpp613 unsigned C1Log; in foldSelectICmpAndOr() local
625 C1Log = C1->logBase2(); in foldSelectICmpAndOr()
639 C1Log = CmpLHS->getType()->getScalarSizeInBits() - 1; in foldSelectICmpAndOr()
659 bool NeedShift = C1Log != C2Log; in foldSelectICmpAndOr()
671 APInt C1 = APInt::getOneBitSet(V->getType()->getScalarSizeInBits(), C1Log); in foldSelectICmpAndOr()
675 if (C2Log > C1Log) { in foldSelectICmpAndOr()
677 V = Builder.CreateShl(V, C2Log - C1Log); in foldSelectICmpAndOr()
678 } else if (C1Log > C2Log) { in foldSelectICmpAndOr()
679 V = Builder.CreateLShr(V, C1Log - C2Log); in foldSelectICmpAndOr()