84     OS << getHexDigit(Mass >> (60 - Digits * 4) & 0xf);  in print()
98 /// Dithering mass distributer.
100 /// This class splits up a single mass into portions by weight, dithering to
101 /// spread out error.  No mass is lost.  The dithering precision depends on the
107 ///     mass to distribute in \a RemMass.
113 ///      2. Calculate the portion's mass as \a RemMass times P.
115 ///         the current portion's weight and mass.
120   DitheringDistributer(Distribution &Dist, const BlockMass &Mass);
128                                            const BlockMass &Mass) {  in DitheringDistributer()  argument
131   RemMass = Mass;  in DitheringDistributer()
137   BlockMass Mass = RemMass * BranchProbability(Weight, RemWeight);  in takeMass()  local
141   RemMass -= Mass;  in takeMass()
142   return Mass;  in takeMass()
392   // mass, they may saturate all the other scales in the function down to 1,  in computeLoopScale()
405   for (auto &Mass : Loop.BackedgeMass)  in computeLoopScale()  local
406     TotalBackedgeMass += Mass;  in computeLoopScale()
410   // its exit mass will be zero. In this case, use an arbitrary scale for the  in computeLoopScale()
415   LLVM_DEBUG(dbgs() << " - exit-mass = " << ExitMass << " ("  in computeLoopScale()
450   BlockMass Mass = Working[Source.Index].getMass();  in distributeMass()  local
451   LLVM_DEBUG(dbgs() << "  => mass:  " << Mass << "\n");  in distributeMass()
453   // Distribute mass to successors as laid out in Dist.  in distributeMass()
454   DitheringDistributer D(Dist, Mass);  in distributeMass()
517                     << ": mass = " << Loop.Mass << ", scale = " << Loop.Scale  in unwrapLoop()
519   Loop.Scale *= Loop.Mass.toScaled();  in unwrapLoop()
540     Freqs[Index].Scaled = Working[Index].Mass.toScaled();  in unwrapLoops()
803   for (auto &Mass : OuterLoop.BackedgeMass)  in updateLoopWithIrreducible()  local
804     Mass = BlockMass::getEmpty();  in updateLoopWithIrreducible()
815   // Since the loop has more than one header block, the mass flowing back into  in adjustLoopHeaderMass()
816   // each header will be different. Adjust the mass in each header loop to  in adjustLoopHeaderMass()
819   // To do this, we distribute the initial mass using the backedge masses  in adjustLoopHeaderMass()
824   LLVM_DEBUG(dbgs() << "adjust-loop-header-mass:\n");  in adjustLoopHeaderMass()
828     LLVM_DEBUG(dbgs() << " - Add back edge mass for node "  in adjustLoopHeaderMass()
834       LLVM_DEBUG(dbgs() << "   Nothing added. Back edge mass is zero\n");  in adjustLoopHeaderMass()
839   LLVM_DEBUG(dbgs() << " Distribute loop mass " << LoopMass  in adjustLoopHeaderMass()