lib/Support/BranchProbability.cpp

   1 //===-------------- lib/Support/BranchProbability.cpp -----------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file implements Branch Probability class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "llvm/Support/BranchProbability.h"
  15 #include "llvm/Support/Debug.h"
  16 #include "llvm/Support/Format.h"
  17 #include "llvm/Support/raw_ostream.h"
  18
  19 using namespace llvm;
  20
  21 void BranchProbability::print(raw_ostream &OS) const {
  22   OS << N << " / " << D << " = " << format("%g%%", ((double)N / D) * 100.0);
  23 }
  24
  25 void BranchProbability::dump() const {
  26   dbgs() << *this << '\n';
  27 }
  28
  29 namespace llvm {
  30
  31 raw_ostream &operator<<(raw_ostream &OS, const BranchProbability &Prob) {
  32   Prob.print(OS);
  33   return OS;
  34 }
  35
  36 }