80 ///   Water   - Potential places where an island could be formed.
133   /// entry, but if it later moves out of range, the search for new water
259   bool isWaterInRange(unsigned UserOffset, MachineBasicBlock *Water, CPUser &U,
318   // sizes of each block, the location of all the water, and finding all of the  in runOnMachineFunction()
341     // appear as "new water" for the next iteration of constant pool placement.  in runOnMachineFunction()
475 /// information about the sizes of each block, the location of all the water,
495     // 'water' that a constant pool island could be placed.  in initializeFunctionInfo()
630   // available water after it.  in updateForInsertedWaterBlock()
676   // the Water goes after OrigBB, not NewBB.  in splitBlockBeforeInstr()
684   // available water after it (but not if it's already there, which happens  in splitBlockBeforeInstr()
730 /// Water (a basic block) will be in range for the specific MI.
732 /// Compute how much the function will grow by inserting a CPE after Water.
734                                          MachineBasicBlock *Water, CPUser &U,  in isWaterInRange()  argument
736   unsigned CPEOffset = BBInfo[Water->getNumber()].postOffset();  in isWaterInRange()
739   MachineFunction::const_iterator NextBlock = ++Water->getIterator();  in isWaterInRange()
741     NextBlockOffset = BBInfo[Water->getNumber()].postOffset();  in isWaterInRange()
918 /// prefer the first water that is in range.
928     // Check if water is in range and is either at a lower address than the  in findAvailableWater()
929     // current "high water mark" or a new water block that was created since  in findAvailableWater()
931     // latter case, we want to allow resetting the high water mark back to  in findAvailableWater()
932     // this new water since we haven't seen it before.  Inserting branches  in findAvailableWater()
944       LLVM_DEBUG(dbgs() << "Found water after " << printMBBReference(*WaterBB)  in findAvailableWater()
974   // end of the block is within range, make new water there.  in createNewWater()
1024   // pool entries following this block; only the last one is in the water list.  in createNewWater()
1081   // Look for water where we can place this CPE.  in handleConstantPoolUser()
1086     LLVM_DEBUG(dbgs() << "Found water in range\n");  in handleConstantPoolUser()
1089     // If the original WaterList entry was "new water" on this iteration,  in handleConstantPoolUser()
1098     LLVM_DEBUG(dbgs() << "No water found\n");  in handleConstantPoolUser()
1102     // called while handling branches so that the water will be seen on the  in handleConstantPoolUser()
1111     // We are adding new water.  Update NewWaterList.  in handleConstantPoolUser()