6271 static OverflowResult mapOverflowResult(ConstantRange::OverflowResult OR) {  in mapOverflowResult()
6273     case ConstantRange::OverflowResult::MayOverflow:  in mapOverflowResult()
6274       return OverflowResult::MayOverflow;  in mapOverflowResult()
6275     case ConstantRange::OverflowResult::AlwaysOverflowsLow:  in mapOverflowResult()
6276       return OverflowResult::AlwaysOverflowsLow;  in mapOverflowResult()
6277     case ConstantRange::OverflowResult::AlwaysOverflowsHigh:  in mapOverflowResult()
6278       return OverflowResult::AlwaysOverflowsHigh;  in mapOverflowResult()
6279     case ConstantRange::OverflowResult::NeverOverflows:  in mapOverflowResult()
6280       return OverflowResult::NeverOverflows;  in mapOverflowResult()
6298 OverflowResult llvm::computeOverflowForUnsignedMul(const Value *LHS,  in computeOverflowForUnsignedMul()
6308 OverflowResult llvm::computeOverflowForSignedMul(const Value *LHS,  in computeOverflowForSignedMul()
6327     return OverflowResult::NeverOverflows;  in computeOverflowForSignedMul()
6342       return OverflowResult::NeverOverflows;  in computeOverflowForSignedMul()
6344   return OverflowResult::MayOverflow;  in computeOverflowForSignedMul()
6347 OverflowResult
6358 static OverflowResult
6363     return OverflowResult::NeverOverflows;  in computeOverflowForSignedAdd()
6382     return OverflowResult::NeverOverflows;  in computeOverflowForSignedAdd()
6388   OverflowResult OR =  in computeOverflowForSignedAdd()
6390   if (OR != OverflowResult::MayOverflow)  in computeOverflowForSignedAdd()
6395     return OverflowResult::MayOverflow;  in computeOverflowForSignedAdd()
6411       return OverflowResult::NeverOverflows;  in computeOverflowForSignedAdd()
6414   return OverflowResult::MayOverflow;  in computeOverflowForSignedAdd()
6417 OverflowResult llvm::computeOverflowForUnsignedSub(const Value *LHS,  in computeOverflowForUnsignedSub()
6434       return OverflowResult::NeverOverflows;  in computeOverflowForUnsignedSub()
6443         return OverflowResult::NeverOverflows;  in computeOverflowForUnsignedSub()
6444       return OverflowResult::AlwaysOverflowsLow;  in computeOverflowForUnsignedSub()
6453 OverflowResult llvm::computeOverflowForSignedSub(const Value *LHS,  in computeOverflowForSignedSub()
6467       return OverflowResult::NeverOverflows;  in computeOverflowForSignedSub()
6473     return OverflowResult::NeverOverflows;  in computeOverflowForSignedSub()
6995 OverflowResult llvm::computeOverflowForSignedAdd(const AddOperator *Add,  in computeOverflowForSignedAdd()
7001 OverflowResult