| GlobalOpt.cpp (193323) | GlobalOpt.cpp (193630) |
|---|---|
| 1//===- GlobalOpt.cpp - Optimize Global Variables --------------------------===// 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//===----------------------------------------------------------------------===// --- 918 unchanged lines hidden (view full) --- 927/// ValueIsOnlyUsedLocallyOrStoredToOneGlobal - Scan the use-list of V checking 928/// to make sure that there are no complex uses of V. We permit simple things 929/// like dereferencing the pointer, but not storing through the address, unless 930/// it is to the specified global. 931static bool ValueIsOnlyUsedLocallyOrStoredToOneGlobal(Instruction *V, 932 GlobalVariable *GV, 933 SmallPtrSet<PHINode*, 8> &PHIs) { 934 for (Value::use_iterator UI = V->use_begin(), E = V->use_end(); UI != E;++UI){ | 1//===- GlobalOpt.cpp - Optimize Global Variables --------------------------===// 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//===----------------------------------------------------------------------===// --- 918 unchanged lines hidden (view full) --- 927/// ValueIsOnlyUsedLocallyOrStoredToOneGlobal - Scan the use-list of V checking 928/// to make sure that there are no complex uses of V. We permit simple things 929/// like dereferencing the pointer, but not storing through the address, unless 930/// it is to the specified global. 931static bool ValueIsOnlyUsedLocallyOrStoredToOneGlobal(Instruction *V, 932 GlobalVariable *GV, 933 SmallPtrSet<PHINode*, 8> &PHIs) { 934 for (Value::use_iterator UI = V->use_begin(), E = V->use_end(); UI != E;++UI){ |
| 935 Instruction *Inst = dyn_cast<Instruction>(*UI); 936 if (Inst == 0) return false; | 935 Instruction *Inst = cast |
| 937 938 if (isa<LoadInst>(Inst) || isa<CmpInst>(Inst)) { 939 continue; // Fine, ignore. 940 } 941 942 if (StoreInst *SI = dyn_cast<StoreInst>(Inst)) { 943 if (SI->getOperand(0) == V && SI->getOperand(1) != GV) 944 return false; // Storing the pointer itself... bad. --- 1541 unchanged lines hidden --- | 936 937 if (isa<LoadInst>(Inst) || isa<CmpInst>(Inst)) { 938 continue; // Fine, ignore. 939 } 940 941 if (StoreInst *SI = dyn_cast<StoreInst>(Inst)) { 942 if (SI->getOperand(0) == V && SI->getOperand(1) != GV) 943 return false; // Storing the pointer itself... bad. --- 1541 unchanged lines hidden --- |