1 //====--------------- lib/Support/BlockFrequency.cpp -----------*- C++ -*-====// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file implements Block Frequency class. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "llvm/Support/BlockFrequency.h" 14 #include "llvm/Support/BranchProbability.h" 15 16 using namespace llvm; 17 18 BlockFrequency &BlockFrequency::operator*=(BranchProbability Prob) { 19 Frequency = Prob.scale(Frequency); 20 return *this; 21 } 22 23 BlockFrequency BlockFrequency::operator*(BranchProbability Prob) const { 24 BlockFrequency Freq(Frequency); 25 Freq *= Prob; 26 return Freq; 27 } 28 29 BlockFrequency &BlockFrequency::operator/=(BranchProbability Prob) { 30 Frequency = Prob.scaleByInverse(Frequency); 31 return *this; 32 } 33 34 BlockFrequency BlockFrequency::operator/(BranchProbability Prob) const { 35 BlockFrequency Freq(Frequency); 36 Freq /= Prob; 37 return Freq; 38 } 39