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1 //==- ExpandInsertExtractElement.cpp - Expand vector insert and extract -=// | 1 //==- ExpandInsertExtractElement.cpp - Expand vector insert and extract -=// |
2 // | 2 // |
3 // The LLVM Compiler Infrastructure | 3 // The LLVM Compiler Infrastructure |
4 // | 4 // |
5 // This file is distributed under the University of Illinois Open Source | 5 // This file is distributed under the University of Illinois Open Source |
6 // License. See LICENSE.TXT for details. | 6 // License. See LICENSE.TXT for details. |
7 // | 7 // |
8 //===------------------------------------------------------------------===// | 8 //===------------------------------------------------------------------===// |
9 // | 9 // |
10 // This pass expands insertelement and extractelement instructions with | 10 // This pass expands insertelement and extractelement instructions with |
(...skipping 50 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
61 Instruction *Entry = F.getEntryBlock().begin(); | 61 Instruction *Entry = F.getEntryBlock().begin(); |
62 Type *Int32 = Type::getInt32Ty(F.getContext()); | 62 Type *Int32 = Type::getInt32Ty(F.getContext()); |
63 Constant *Zero = ConstantInt::get(Int32, 0); | 63 Constant *Zero = ConstantInt::get(Int32, 0); |
64 for (inst_iterator I = inst_begin(&F), E = inst_end(&F); I != E; ) { | 64 for (inst_iterator I = inst_begin(&F), E = inst_end(&F); I != E; ) { |
65 Instruction *Inst = &*I++; | 65 Instruction *Inst = &*I++; |
66 | 66 |
67 if (InsertElementInst *III = dyn_cast<InsertElementInst>(Inst)) { | 67 if (InsertElementInst *III = dyn_cast<InsertElementInst>(Inst)) { |
68 if (isa<ConstantInt>(III->getOperand(2))) | 68 if (isa<ConstantInt>(III->getOperand(2))) |
69 continue; | 69 continue; |
70 | 70 |
71 Instruction *A = new AllocaInst(III->getType(), 0, "", Entry); | 71 Type *AllocaTy = III->getType(); |
| 72 Instruction *A = new AllocaInst(AllocaTy, 0, "", Entry); |
72 CopyDebug(new StoreInst(III->getOperand(0), A, III), III); | 73 CopyDebug(new StoreInst(III->getOperand(0), A, III), III); |
73 | 74 |
74 Value *Idxs[] = { Zero, III->getOperand(2) }; | 75 Value *Idxs[] = { Zero, III->getOperand(2) }; |
75 Instruction *B = CopyDebug(GetElementPtrInst::Create(A, Idxs, "", III), II
I); | 76 Instruction *B = CopyDebug( |
| 77 GetElementPtrInst::Create(AllocaTy, A, Idxs, "", III), III); |
76 CopyDebug(new StoreInst(III->getOperand(1), B, III), III); | 78 CopyDebug(new StoreInst(III->getOperand(1), B, III), III); |
77 | 79 |
78 Instruction *L = CopyDebug(new LoadInst(A, "", III), III); | 80 Instruction *L = CopyDebug(new LoadInst(A, "", III), III); |
79 III->replaceAllUsesWith(L); | 81 III->replaceAllUsesWith(L); |
80 III->eraseFromParent(); | 82 III->eraseFromParent(); |
81 } else if (ExtractElementInst *EII = dyn_cast<ExtractElementInst>(Inst)) { | 83 } else if (ExtractElementInst *EII = dyn_cast<ExtractElementInst>(Inst)) { |
82 if (isa<ConstantInt>(EII->getOperand(1))) | 84 if (isa<ConstantInt>(EII->getOperand(1))) |
83 continue; | 85 continue; |
84 | 86 |
85 Instruction *A = new AllocaInst(EII->getOperand(0)->getType(), 0, "", Entr
y); | 87 Type *AllocaTy = EII->getOperand(0)->getType(); |
| 88 Instruction *A = new AllocaInst(AllocaTy, 0, "", Entry); |
86 CopyDebug(new StoreInst(EII->getOperand(0), A, EII), EII); | 89 CopyDebug(new StoreInst(EII->getOperand(0), A, EII), EII); |
87 | 90 |
88 Value *Idxs[] = { Zero, EII->getOperand(1) }; | 91 Value *Idxs[] = { Zero, EII->getOperand(1) }; |
89 Instruction *B = CopyDebug(GetElementPtrInst::Create(A, Idxs, "", EII), EI
I); | 92 Instruction *B = CopyDebug( |
| 93 GetElementPtrInst::Create(AllocaTy, A, Idxs, "", EII), EII); |
90 Instruction *L = CopyDebug(new LoadInst(B, "", EII), EII); | 94 Instruction *L = CopyDebug(new LoadInst(B, "", EII), EII); |
91 EII->replaceAllUsesWith(L); | 95 EII->replaceAllUsesWith(L); |
92 EII->eraseFromParent(); | 96 EII->eraseFromParent(); |
93 } | 97 } |
94 } | 98 } |
95 | 99 |
96 return Changed; | 100 return Changed; |
97 } | 101 } |
98 | 102 |
99 FunctionPass *llvm::createExpandInsertExtractElementPass() { | 103 FunctionPass *llvm::createExpandInsertExtractElementPass() { |
100 return new ExpandInsertExtractElement(); | 104 return new ExpandInsertExtractElement(); |
101 } | 105 } |
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